System and method for fracturing of underground formations using electric grid power

Description

BACKGROUND
1. Field of Invention

The presently disclosed subject matter relates generally to hydraulic stimulation of underground hydrocarbon-bearing formations, and more particularly, to the use of electrical grid power to power equipment for delivering fracturing fluid to a wellbore.

2. Description of the Related Art

During the life span of a typical hydrocarbon-producing wellbore, various fluids (along with additives, proppants, gels, cement, etc. . . . ) can be delivered to the wellbore under pressure and injected into the wellbore. Surface pumping systems must be able to accommodate these various fluids. Such pumping systems are typically mobilized on skids or tractor-trailers with associated motors to power the pumping operation.

In the past, diesel powered equipment has been utilized, or on-site power sources such as turbine generators have been utilized, to supply power to electric motors and pumps used for fracturing operations; however, these types of equipment or dedicated, on-site power sources have a number of disadvantages.

For example, diesel powered equipment, or fuel oil, is costly and will incur a high running cost due to the costly price of the fuel. Another disadvantage attributed to diesel powered equipment is that it is unable to operate efficiently under prolonged overload conditions and surge equipment high noise levels that exceed 88 decibels limiting human exposure. Moreover, diesel powered equipment generally generates small amount of power with an additional high cost of lubrication. Finally, diesel powered equipment requires expensive maintenance charges.

Improvements in this field of technology are desired.

SUMMARY

Various illustrative embodiments of a system and method for utilizing electrical power from a utility electric grid for powering equipment for delivering fracturing fluid to a wellbore at a fracturing operation, or in connection with other hydrocarbon-producing wellbore completions, are provided herein.

In accordance with an aspect of the disclosed subject matter, a system is provided for performing hydraulic fracturing using power from a utility electric grid. The system can include: a mobile substation comprising at least two transformer units that are operatively coupled to the utility electric grid in a parallel orientation, where the transformer units are capable of receiving power from the utility electric grid and stepping down the power for delivery to a switchgear; an electric motor operatively coupled to a hydraulic fracturing pump and operatively controlled by a variable frequency drive; and at least one open air relay cable operatively coupled between the switchgear and the electric motor and capable of delivering power to the electric motor.

In certain illustrative embodiments, a system is provided for performing hydraulic fracturing using power from a utility electric grid. The system can include: a mobile substation comprising at least two transformer units that are operatively coupled to the utility electric grid in a parallel orientation, where the transformer units are capable of receiving power from the utility electric grid and stepping down the power for delivery to a plurality of switchgears; a plurality of electric motors, where each electric motor is operatively coupled to a hydraulic fracturing pump and operatively controlled by a variable frequency drive, and wherein each electric motor is coupled to one of the plurality of switchgears by at least one open air relay cable. In accordance with another aspect of the disclosed subject matter, a method is provided for performing hydraulic fracturing using power from a utility electric grid, including: accessing power from the utility electric grid; operating at least two transformer units in parallel to step down the line voltage of the power from the utility electric grid; passing the power from the at least two transformer units through a switchgear; delivering the power from the switchgear to a plurality of electric motors using at least one open air relay cable; and with each of the plurality of electric motors, driving a hydraulic fracturing pump.

In certain illustrative embodiments, a method of providing electric power to at least one fracturing unit at a wellbore is disclosed. The method can include: providing a pair of mobile substations at a site containing a wellbore to be fractured, wherein the mobile substations each comprise a transformer unit; operating the transformer units in the pair of mobile substations in parallel to receive power from a utility electric grid and step down the line voltage of the power from the utility electric grid to produce an electric power supply; providing the fracturing unit at the site; providing a fracturing fluid for pressurized delivery to the wellbore, wherein the fracturing fluid comprises a liquefied petroleum gas; and operating the fracturing unit using electric power from the electric power supply to pump the fracturing fluid to the wellbore

In certain illustrative embodiments, the parallel orientation may include providing redundancy between the at least two mobile substations and at least one auxiliary power trailer in an event of malfunction of one of the mobile substations of the at least two mobile substations or electrical generation failure; and automatically delivering at least 60 MW to the plurality of electric motors in an absence of a controller, where automatically delivering at least 60 MW ensures that load requirement is equally shared between the at least two transformers. In certain illustrative embodiments, the system may further include performing hydraulic fracturing using power from the utility electric grid. In certain illustrative embodiments, the at least one open air relay cable is capable of delivering power to the plurality of electric motors. In certain illustrative embodiments, the system may further include powering the plurality of electric motors using power from the utility electric grid. In certain illustrative embodiments, the at least one fracturing pump may include at least one hydraulic fracturing pump. In certain illustrative embodiments, the at least two transformer units are capable stepping down the power for delivery to a switchgear. In certain illustrative embodiments, the system may further include a well site comprising a wellbore and a source of electricity consisting of the utility electric grid. In certain illustrative embodiments, the system may further include a source of treatment fluid, where the treatment fluid may include a liquefied petroleum gas. In certain illustrative embodiments, the system may further include a control system for regulating a plurality of electorally powered fracturing units in delivery of a treatment fluid from a source of treatment fluid to a wellbore. In certain illustrative embodiments, the system may further include at least one pump trailer at a well site for housing the plurality of electric motors, the at least one fracturing pump and the at least one variable frequency drive. In certain illustrative embodiments, the system may further include an AC permanent magnet motor capable of operation in the range of up to 800 rpms and up to 25 ft/lbs of torque and at 2000 hp during fracturing operations. In certain illustrative embodiments, the system may further include a plunger-style fluid pump coupled to at least one magnet motor. In certain illustrative embodiments, the at least one magnet motor and the plunger-style fluid pump are each solely powered by power accessed from the utility electric grid. In certain illustrative embodiments, the method may further include providing the fracturing fluid for pressurized delivery to a wellbore, where the fracturing fluid comprises one or more fluids from the group of linear gelled water, gelled water, gelled oil, slick water, slick oil, poly emulsion, foam/emulsion, liquid CO₂, N₂, binary fluid and acid. In certain illustrative embodiments, the method may further include providing an electric blender module, the electric blender module comprising: a fluid source, a fluid additive source, and a blender tub.

In certain illustrative embodiments, a system is provided. The system can be used for, e.g., performing hydraulic fracturing using power from a utility electric grid. The system can include: a plurality of mobile substations, each mobile substation comprising at least two transformer units that are operatively coupled to a utility electric grid, wherein the at least two transformer units are configured to operate in a parallel orientation; a plurality of electric motors, each electric motor operatively coupled to at least one fracturing pump and operatively controlled by at least one variable frequency drive; and at least one open air relay cable operatively coupled between at least one switchgear and the plurality of electric motors. The at least one variable frequency drive can be configured to automatically deliver at least 60 MW to the plurality of electric motors in an absence of a controller, and automatically delivering at least 60 MW ensures that the load requirement is equally shared between the at least two transformer units operating in the parallel orientation. There can be redundancy between the at least two mobile substations and at least one auxiliary power trailer in an event of malfunction of one of the at least two mobile substations or electrical generation failure. The system can include a fracturing pump configured to perform hydraulic fracturing using power from the utility electric grid. The at least one open air relay cable can be configured to deliver power to the plurality of electric motors. The plurality of electric motors can be configured to drive the fracturing pump using power from the utility electric grid. The at least one fracturing pump can include at least one hydraulic fracturing pump. The transformer units can be configured to step down the power for delivery to a switchgear. The system can further include a well site comprising a wellbore and a source of electricity consisting of the utility electric grid. The system can further include a source of treatment fluid, wherein the treatment fluid comprises a liquefied petroleum gas. The system can further include a control system, wherein the control system is configured to regulate a plurality of electrically powered fracturing units in delivery of a treatment fluid from a source of treatment fluid to a wellbore. The system can further include at least one pump trailer at a well site for housing the plurality of electric motors, the at least one fracturing pump and the at least one variable frequency drive. The system can further include an AC permanent magnet motor configured to operate in the range of up to 800 rpms and up to 25 ft/lbs of torque and at 2000 hp during fracturing operations. The system can further include a plunger-style fluid pump coupled to at least one magnet motor, and wherein the at least one magnet motor and the plunger-style fluid pump are each solely powered by power accessed from the utility electric grid. The system can further include at least one fracturing unit configured to deliver pressurized liquefied petroleum gas to a wellbore.

In certain illustrative embodiments, a system is provided. The system can be used for, e.g., performing hydraulic fracturing using power from a utility electric grid. The system can include: a well site comprising a wellbore and a source of electricity consisting of a utility electric grid; a plurality of mobile substations, each mobile substation comprising at least two transformer units that are operatively coupled to the utility electric grid, wherein the at least two transformer units are configured to operate in a parallel orientation; a plurality of electrically powered fracturing units operatively associated with the utility electric grid, the electrically powered fracturing unit comprising at least one electric motor and at least one fluid pump coupled to the at least one electric motor, wherein the at least one electric motor is operatively coupled to a plurality of fracturing pumps and automatically controlled by at least one variable frequency drive, and wherein the at least one electric motor comprises an AC permanent magnet motor capable of operation in the range of up to 800 rpms and up to 25 ft/lbs of torque and at 2000 hp during fracturing operations; at least one open air relay cable operatively coupled between a plurality of switchgears and the at least one electric motor; a source of treatment fluid; a control system for regulating the plurality of electrically powered fracturing units in delivery of the treatment fluid from the source of treatment fluid to the wellbore; and a pump trailer at the well site for housing the at least one electric motor, the plurality of fracturing pump and the at least one variable frequency drive. The at least one variable frequency drive can be configured to automatically deliver at least 60 MW to the plurality of electric motors in an absence of a controller, and automatically delivering at least 60 MW ensures that load requirement is equally shared between the at least two transformer units operating in the parallel orientation. The system can have redundancy between the at least two mobile substations and at least one auxiliary power trailer in an event of malfunction of one of the at least two mobile substations or electrical generation failure. The at least one open air relay cable can be capable of delivering power to the plurality of electric motors. The treatment fluid can include a liquefied petroleum gas. The control unit can be configured to provide independent control of the plurality of mobile substations operating in parallel. The system can further include an AC permanent magnet motor capable of operation in the range of up to 800 rpms and up to 25 ft/lbs of torque and at 2000 hp during fracturing operations, and a plunger-style fluid pump coupled to the at least one electric motor.

In certain illustrative embodiments, a method is provided. The method can be used for, e.g., performing hydraulic fracturing using power from a utility electric grid. Power can be accessed from a utility electric grid. At least two transformer units can be operated in parallel to step down the line voltage of the power from the utility electric grid. The power can be passed from the at least two transformer units through at least one switchgear. The power can be delivered from the at least one switchgear to a plurality of electric motors using at least one open air relay cable. A plurality of pumps can be driven with the plurality of electric motors. Hydraulic fracturing can be performed using power from the utility electric grid. The plurality of pumps can include a plurality of electric pumps. When the at least two transformer units are operated in parallel, redundancy can be provided between the at least two mobile substations and at least one auxiliary power trailer in an event of malfunction of one of the mobile substations of the at least two mobile substations or electrical generation failure. At least 60 MW can be automatically delivered to the plurality of electric motors in an absence of a controller, wherein automatically delivering at least 60 MW ensures that load requirement is equally shared between the at least two transformer units. A fracturing fluid can be provided for pressurized delivery to a wellbore, wherein the fracturing fluid can include one or more fluids from the group of linear gelled water, gelled water, gelled oil, slick water, slick oil, poly emulsion, foam/emulsion, liquid CO₂, N₂, binary fluid and acid. An electric blender module can also be provided. The electric blender module can include a fluid source, a fluid additive source, and a blender tub. The at least one fracturing unit can be utilized for delivering pressurized liquefied petroleum gas to a wellbore.

In certain illustrative embodiments, a method is provided. The method can be used for, e.g., performing hydraulic fracturing using power from a utility electric grid. A source of electric power can be provided at a site containing a wellbore to be fractured. The source of electrical power is a utility electric grid. One or more electric fracturing units can be provided at the site. The electric fracturing units can include an electric motor and a coupled fluid pump, the electric motor operatively associated with the source of electric power. A fracturing fluid can be provided for pressurized delivery to a wellbore, wherein the fracturing fluid can include one or more fluids from the group of linear gelled water, gelled water, gelled oil, slick water, slick oil, poly emulsion, foam/emulsion, liquid CO₂, N₂, binary fluid and acid. At least two transformer units can be provided at a site containing a wellbore to be fractured, wherein the at least two transformer units are housed in one or more mobile substations. The at least two transformer units can be operated in parallel to receive power from a utility electric grid and step down the line voltage of the power from the utility electric grid to produce an electric power supply. One or more pump trailers can be provided at the site. The pump trailers can include an electric motor and a coupled fluid pump, the electric motor operatively associated with the electric power supply. The fracturing fluid can be provided for pressurized delivery to a wellbore. The electric motor can be operated using the electric power supply to pump the fracturing fluid to the wellbore. An electric blender module can be provided. The electric blender module can include a fluid source, a fluid additive source, and a blender tub. Electric power can be supplied to the electric blender module from the electric power supply to effect blending of a fluid from the fluid source with a fluid additive from the fluid additive source to generate the fracturing fluid.

Other aspects and features of the presently disclosed subject matter will become apparent to those of ordinary skill in the art upon review of the following detailed description in conjunction with the accompanying figures.

BRIEF DESCRIPTION OF THE DRAWINGS

A better understanding of the presently disclosed subject matter can be obtained when the following detailed description is considered in conjunction with the following drawings and figures, wherein:

FIG. 1 is a block diagram of an exemplary electric grid power using at least one mobile substation, in accordance with certain illustrative embodiments described herein;

FIG. 2 is a block diagram depicting a distribution pole with predetermined electric grid specifications, in accordance with certain illustrative embodiments described herein;

FIG. 3 is a block diagram depicting at least one electrical line associated with the mobile substation, in accordance with certain illustrative embodiments described herein;

FIG. 4 is a block diagram depicting at least one electrical line associated with the switchgear, in accordance with certain illustrative embodiments described herein;

FIG. 5 is a block diagram depicting an electrical line running through the mobile substation to the switchgear and a plurality of downline frac pumps, in accordance with certain illustrative embodiments described herein;

FIG. 6A is an upstream cross-sectional view of an electrical line associated with a switchgear buss network, in accordance with certain illustrative embodiments described herein;

FIG. 6B is a downstream cross-sectional view of an electrical line associated with a switchgear buss network, in accordance with certain illustrative embodiments described herein;

FIG. 7 is a cross-sectional front view of the switchgear, in accordance with certain illustrative embodiments described herein;

FIG. 8 is a block diagram of at least one electrical line of the buss network input electrical supply, in accordance with certain illustrative embodiments described herein;

FIG. 9 is a block diagram of a plurality of main electrical components of a frac pump, in accordance with certain illustrative embodiments described herein;

FIG. 10 is a cross-sectional view of a plurality of input bays associated with a plurality of turbines, in accordance with certain illustrative embodiments described herein;

FIG. 11 is a block diagram of a communication cable with fiber optics and protection elements, in accordance with certain illustrative embodiments described herein;

FIG. 12 is a block diagram of a variable frequency drive with a low voltage application, in accordance with certain illustrative embodiments described herein;

FIG. 13A is a block diagram of a pole top air disconnect switch in an off position, in accordance with certain illustrative embodiments described herein;

FIG. 13B is a block diagram of a pole top air disconnect switch in an on position, in accordance with certain illustrative embodiments described herein;

FIG. 14 is a top view of a variable frequency drive with a redesigned coupling system and at least one electrical actuator, in accordance with certain illustrative embodiments described herein;

FIG. 15 is a cross-sectional view of an exemplary mobile substation, in accordance with certain illustrative embodiments described herein;

FIG. 16 is a cross-sectional rear view of the switchgear, in accordance with certain illustrative embodiments described herein;

FIG. 17 is a side rear view of the switchgear, in accordance with certain illustrative embodiments described herein;

FIG. 18 is a cross-sectional view of a communication cable with fiber optics and protection elements, in accordance with certain illustrative embodiments described herein;

FIG. 19 is a cross-sectional view of the protection elements and fiber optics within the communication cable, in accordance with certain illustrative embodiments described herein; and

FIG. 20 is a side view of a turbine package capable of at least 36 MW, in accordance with certain illustrative embodiments described herein.

While the presently disclosed subject matter will be described in connection with the preferred embodiment, it will be understood that it is not intended to limit the presently disclosed subject matter to that embodiment. On the contrary, it is intended to cover all alternatives, modifications, and equivalents, as may be included within the spirit and the scope of the presently disclosed subject matter as defined by the appended claims.

DETAILED DESCRIPTION

The presently disclosed subject matter generally relates to a system and method for utilizing electrical power from a utility electric grid to power equipment for delivering fracturing fluid to a wellbore at a fracturing operation, or in connection with other hydrocarbon-producing wellbore completions.

Overview

In certain illustrative embodiments, the presently disclosed system and method can be used to perform hydraulic fracturing or other operations at a wellbore using utility grid powered electrical equipment, while also meeting all regulatory standards as provided in IEEE, ANSI C2, NEMA, and NFPA 70 for utilizing grid power.

With reference to the illustrative embodiment of FIG. 1, a system 10 is provided. System 10 includes a utility electric grid 20 and related structures and equipment, a plurality of mobile power substations 30, a switchgear trailer 40, at least one relay cable 50 operatively connected to switchgear trailer 40, at least one pump trailer 60, and an auxiliary trailer 80. In certain illustrative embodiments, each trailer in system 10 can also be a skid. Each pump trailer 60 can include an electric motor 68 and at least one fluid pump 70 coupled thereto. During fracturing, mobile power substations 30 can be operatively associated with utility electric grid 20 to receive electric power therefrom. Electric power from utility electric grid 20 can be used to operate electric motor 68 and one or more fluid pumps 70 such as fracturing pumps (e.g., hydraulic fracturing pumps) to pump fracturing fluid directly to the wellbore.

In certain illustrative embodiments, the presently disclosed system and method allow for electric syncing of the mobile power substations 30 (which comprise two 30 MVA transformers configured to operate in parallel and powered by the utility electric grid 20), to a switchgear trailer 40 having a switchgear 40a on one buss network that is connected to a plurality of remotely controlled distributions and output bays and designed to energize a plurality of medium voltage/low voltage transformers 32 located on pump trailers 60.

In certain illustrative embodiments, each single medium voltage transformer 32 on a pump trailer 60 has multiple secondary windings, designed to achieve IEEE 513 standards for THD (Total Harmonic Distortion) and configured to electrically power a single medium voltage double shafted motor on pump trailer 60. This medium voltage motor supplies the energy to operate one or more fracturing pumps to achieve efficient down hole fracturing operations.

In certain illustrative embodiments, the use of two 30 MVA mobile substations 30 operating in parallel provides a redundancy in the event of malfunction of one of the mobile substations 30 or electrical generation failure. The presently disclosed system and method allow a user to reach electrical capacity to fully utilize the switchgear trailer 40 and its distributions to reach fracturing pump capacity and maximize fracturing pump design in horsepower rating to reach desired efficiencies.

Utilizing Power from Utility Electric Grid

In certain illustrative embodiments, the utility electric grid 20 and its related structures and equipment are utilized as a single power source for fracturing operations. While traditional on-site power sources such as turbine generators may be accessible in certain fracturing operations, the use of utility grid power as a single power source, meaning the only power supply for on-site equipment during standard operations, is preferred. In certain embodiments, the use of utility grid power as the signal power source can supply sufficient power to operate a fleet of power substations 30, switchgear trailers 40, pump trailers 60, and auxiliary trailers 80.

With reference to the illustrative embodiment of FIG. 2, a utility electric grid 20 and its related structures and equipment (for example, and without limitation, a 24.9 KV distribution pole) can supply sufficient power to operate a fleet of electric motors 68 and fluid pumps 70 during standard operation without the equipment needing to draw from a variety of other power sources, either simultaneously or in sequential, priority or staggered order.

While the utility electric grid 20 shown in FIG. 2 is an above-ground utility grid, an underground utility grid can also be utilized and is within the scope of the presently disclosed subject matter.

In certain illustrative embodiments, each fracturing location may have a power distribution pole supplied by a utility service provider. The distribution pole can have, for example, a max height of 45 feet providing 24.9 KV service and can be connected directly to a mobile substation capable of providing 24.9 KV service. In certain embodiments, the distribution pole can be connected to the mobile substation via at least one conductor cabling of a plurality of conductor cabling. The at least one conductor cabling can be a single conductor or a multi conductor cabling. In certain embodiments, a breaker can be directly in line with an initial transformer 32 capable of 24.9 KV and/or 13.8 KV for transformer protection.

In certain illustrative embodiments, each distribution pole can be equipped with a manually operated air connect/disconnect switch. This switch will typically be maintained by the service provider and all electrical connections will be handled by the service provider, although a user could maintain and handle the equipment under certain circumstances. Properly rated multi conductor cabling can be connected to the air disconnect by the service provider. The cable can be maintained and tested each pad move for integrity and safety purposes. A cable opposite of the air disconnect switch on the distribution pole can be equipped with a TJB connector with the mobile substation 30 being equipped with a TJB receptacle providing the connectivity at the mobile substation 30. This connection at the mobile substation 30 can be managed by personnel of the user.

Mobile Power Substations

With reference to the illustrative embodiments of FIG. 3, system 10 can utilize a plurality of mobile power substations 30.

In the illustrative embodiment shown in FIG. 3, two mobile power substations 30 are utilized. Each substation 30 can include an initial transformer 32 that is enclosed within the trailer or sits on the trailer. For example, the initial transformer 32 can be a 30 MVA oil filled transformer mounted on a 46′ overall length trailer and/or an 8′ 6″ overall width trailer.

In certain illustrative embodiments, each 30 MVA mobile power substation 30 can be connected to the utility electric grid 20 via a pair of multi-conductor cables with safety interlocks in conjunction with the air disconnect on the distribution pole.

In various illustrative embodiments, the system 10 has the capability for sufficiently powering the fracturing equipment using either a single mobile power substation 30 operating independently, or a pair of mobile power substations 30 operating in parallel, or a plurality of mobile power substations 30 capable of operating together or independently (e.g., during equipment failure or planned maintenance).

In certain illustrative embodiments, the initial transformers 32 in the pair of mobile power substations 30 operate in parallel using the utility electric grid 20 as a single power source, which provides certain specific advantages. In certain embodiments, these certain advantages can include allowing redundancy within the system should a mobile substation fail; flexibility to split the buss network; independently operate the fleet on two different buss networks; and operate a plurality of substations in parallel and/or independently.

As used herein, the term “parallel” with respect to operation of mobile power substations 30 includes a first transformer 32 and a second transformer 32 each housed in or disposed on a single mobile substation 30, or includes separate transformers 32 housed in or disposed on separate mobile substations 30, or a single mobile substation 30 hosting multiple pairs of transformers 32. The various embodiments described herein encompass any of these scenario for “parallel” operation, and this written description shall be construed in accordance therewith.

In certain illustrative embodiments, as shown in FIG. 3, the first transformer 32 has a first primary coil 32a (input coil) and a first secondary coil 32b (output coil), and the second transformer 32 has a second primary coil 32c (input coil) and a second secondary coil 32d (output coil).

In certain embodiments, a switch can be at the rear of the mobile power substation and can be connected to the 24.9 KV power supply. In response to a plurality of primary connections, a 24.9 KV breaker and a breaker enclosure can be connected to the switch at the rear of the mobile power substation. Anterior to the 24.9 KV breaker and the breaker enclosure, a relay enclosure can monitor the 24.9 KV breaker functionality.

In certain illustrative embodiments, each mobile power substation 30 can have 24.9 KV/13.8 KV, 30 MVA capability that can supply 13.8 KV to the switchgear trailer 40 with switchgears 40a. Each 30 MVA mobile power substation 30 can be utilized in conjunction with a distribution network within switchgear trailer 40 with switchgears 40a powering a plurality of VFDs managing the functionality of medium voltage motors and low voltage motors. The mobile substations 30 operating in parallel will be able to deliver up to 60 MW of available power to accomplish fracturing operations. System 10 will be capable of monitoring all power usage and with remote functionality of circuit breakers and switches.

In certain illustrative embodiments, each mobile power substation 30 can deliver the 13.8 KV voltage needed to operate electrical equipment for a fracturing operation effectively and efficiently. Each mobile power substation 30 can have capacity for a primary voltage of 24.9 KV equipped with a Delta primary winding. The secondary WYE winding can deliver the needed 13.8 KV system voltage to the switchgear trailer 40. By using the WYE winding on the secondary of the initial transformer 32 of each mobile power substation 30, a high resistance grounding system can provide for integrity and safety of personnel.

In certain illustrative embodiments, the parallel operation for the pair of mobile power substations 30 means that neither substation is prioritized, and the load requirement is equally shared between the initial transformers 32 in the two substations 30. There is no controller (automated or manual) that is distributing load between the initial transformers 32 in an unequal manner, e.g., pulling 20 megawatts of power from one transformer 32 while pulling 10 megawatts of power from the other transformer 32. Further, if (for example) a first transformer 32 including the first primary coil 32a and the first secondary coil 32b in the first mobile substation 30 goes out of operation, system 10 will operate solely from a second transformer including the second primary coil 32c and the second secondary coil 32d in second mobile substation 30, without syncing up to any external power sources to power fracturing operations. The mobile substation can share the load between at least two mobile substations at equal percentages based on total amount of load. In certain embodiments, the mobile substation 30 can provide more load than the initial transformer 32. In another embodiment, the first mobile substation can be actively in use, and the second mobile substation can remain in an open position to tie the breaker.

The mobile substation 30, or pair of mobile substations 30, described herein has certain operating parameters that are distinguishable from, and advantageous over, a standard non-mobile, stationary substation/transformer unit. A standard substation/transformer unit can be built on-site to meet required power specs and the initial transformer 32 can be sized and operated accordingly; however, the resulting structure would be stationary and could not be easily or economically moved from site to site. By comparison, the mobile power substations 30 described herein can have the initial transformers 32 that are smaller in size, but still sized to operate system 10 and meet capacity for a variety for fracturing operations and can also be housed on one or more trailers such that they are portable and can be moved from site to site in an economical manner. Moreover, the mobile power substations 30 described herein can be temporarily secured onsite so that they are stationary during operation, while still maintaining the capability to be moved from site to site for future uses in an economical manner.

In certain illustrative embodiments, where a single mobile substation 30 is operating independently, and not in parallel with another substation 30, a user can curb the load on system 10 (e.g., reduce capacity to less than 60 MW on the fracturing operation). The operation may not be able to run at a normal rate but can still make a necessary day rate, operating at or near, e.g., 26 MW. Adjustments can be made to meet the required supply rates.

For example, in certain illustrative embodiments, a method is provided for adjusting the operating parameters of a fracturing operation wherein two mobile substations are operated in parallel initially to meet fracturing specifications, and then one of the mobile substations is removed from operations, resulting in only a single mobile substation in operation, and one or more operational parameters are adjusted such that fracturing specifications are still met while utilizing only the single mobile substation.

Table 1, shown below, provides examples of various operational parameters that can be adjusted in accordance with the method described above, to meet fracturing specifications.

TABLE 1

Adjustment of Operational Parameters to Achieve Fracturing Specifications

When Switching Operations from Two Mobile Substations in Parallel

to a Single Mobile Substation

Number

of Pump
Barrels

Hold
Transformer
VFD
Load
Grid
Trailers in
per

+/−
Pressure
Size
Capability
Demand
Supply
Operation
Minute

Parallel
Maximum
60 MVA
100%
100%
60 MVA
18 Frac
360

Operation
Capacity

Pumps

2 Blenders

Single
TBD
30 MVA
100%
100%
30 MVA
8 Frac
120

Operation

Pumps

2 Blenders

Switchgear Trailer

With reference to the illustrative embodiments of FIG. 4-FIG. 6, system 10 can include a switchgear trailer 40. Switchgear trailer 40 allows for automated functioning of a switchgear with the flexibility of a plurality of distributions operatively associated with the switchgear and comprising medium voltage circuit breakers (“CBs”) to provide 13.8 KV to downstream equipment.

In certain illustrative embodiments, the switchgear on switchgear trailer 40 comprises a single bus network with multiple distributions or outputs off of the single bus. Switchgear trailer 40 can have a single multiconductor cable per output bay equipped with communication potential in the same. Switchgear trailer 40 can be equipped with dual output bays (e.g., quantity 10) as well as input or “APU” bays (e.g., quantity 2) for additional 13.8 KV generating sources. Switchgear trailer 40 can be locally controlled or remotely controlled and can have a multitude of protections within the buss network and externally of switchgear trailer 40 to protect users and equipment.

In certain illustrative embodiments, switchgear trailer 40 can be equipped with a 480V distribution center that is powered by an onboard transformer capable of 13.8 KV/480 V, 1MVA, powering the normal 480 V distribution buss when 13.8 KV is present on the main buss. For situations when 13.8 KV voltage is unexpectedly removed from the buss network from any of the 13.8 KV sources, switchgear trailer 40 can be equipped with a Cat C15 Engine/480 V generator that will start automatically applying 480 V power to the 480 V emergency distribution. This can be an automatic function with auto transfer switches to allow for a seamless transition between normal buss operation and emergency buss operation.

FIG. 4 and FIG. 5 show exploded views of switchgear trailer 40 with a plurality of distributions each having a “CB” or circuit breaker positioned thereon. In the embodiment of FIG. 4 and FIG. 5, there are eight (8) CBs present, numbered CB1-CB8. In certain embodiments, the CBs can refer to a depiction of the switchgear 40a. In other embodiments, the CBs can refer to an exact representation of the plurality of input bays and/or the plurality of output bays.

FIG. 6A and FIG. 6B show an upstream and downstream, respectively, one line drawing of switchgear and monitoring circuits for switchgear trailer 40 associated with each output bay. The connection AB utilizes the 13.8 KV surface cable that houses ground check, communication via fiber, and main conductors. In certain embodiments, the switchgear trailer 40 may be connected to the mobile substation 30A and the mobile substation 30B via an open air relay cable.

FIG. 7 shows the output/input side of switchgear trailer 40, including the output bays and the orientation of the decarbonization receptacles (e.g., from Cavotec®). In certain embodiments, the switchgear trailer may display at least one turbine and/or mobile substation connection point 72 and a 480 V distribution MCC 74.

FIG. 8 shows a one line drawing of the 13.8 KV input connections to the main buss network of switchgear trailer 40. These connections can be used to connect the turbine or the mobile substation 30A and the mobile substation 30B via the initial transformer 32.

In certain illustrative embodiments, switchgear trailer 40 can utilize a single switchgear to power a single piece of equipment or various equipment, or multiple switchgears to power various equipment, depending on the capacity of the switchgears and their capability to power the motors, pumps, blenders and other equipment on pump trailer 60 or otherwise in the system 10. Also, multiple switchgear trailers 40 could be utilized, as needed.

Switchgear trailer 40 is designed with the flexibility of many various 15 KV inputs, allowing for ease of connection to the grid electric power 20, and sized to maintain available electrical supply from the grid electric power 20 in a variety of applications and specifications. For example, the flexibility of the switchgear trailer can run a common buss configuration and/or a split buss configuration. In certain embodiments, each configuration of the buss can be operated with a plurality of inputs from grid power, where each input is capable of 15 KV process. In other embodiments, each configuration of the buss can be operated with the plurality of inputs from turbine power.

Pump Trailer

With reference to the illustrative embodiment of FIG. 9 and FIG. 12, a pump trailer 60 for system 10 is shown.

Pump trailer 60 can include a trailer transformer 62, at least one capacitor 64, a Variable Frequency Drive 66 (VFD), and an electric motor 68 coupled to one or more electric pumps 70, in certain illustrative embodiments. A suitable pump is a centripetal style pump, for example, the centripetal pump sold by GD Energy Products.

Electric motor 68 is operatively associated with turbine generator 31, in certain embodiments. Typically, each pump trailer 60 will include a trailer transformer 62 to step down the voltage of the power from switchgear 40 to a voltage appropriate for electric motor 68. The trailer transformer 62 can be provided as an independent unit, or can be permanently fixed to the pump trailer 60, in various embodiments.

If permanently fixed, the trailer transformer 62 can be scalable to allow the addition or subtraction of motors 68, pumps 70 or other components to accommodate any operational requirements. Each pump 70 and electric motor 68 is modular in nature so as to simplify removal and replacement from pump trailer 60 for maintenance purposes.

FIG. 10. depicts cross-sectional view of a plurality of input bays associated with a plurality of turbines and a turbine generator 31, in accordance with certain illustrative embodiments described herein. In certain embodiments, a first turbine port 77 can maintain a plurality of ports and/or input bays to receive power and/or provide power to the switchgear trailer 40. In certain embodiments, a second turbine port 79 can maintain a similar plurality of ports and/or input bays to receive power and/or provide power to the switchgear trailer 40.

Electric Motor

With reference to the illustrative embodiments herein, electric motor 68 receives electric power from utility electric grid 20, and is coupled directly to pump 70. In order to ensure suitability for use in fracturing, electric motor 68 should be capable of operation up to 800 rpms with a torque of up to 25 ft/lbs, in certain illustrative embodiments. A motor suitable for this purpose is sold under the trademark WEG® and is available from WEG Electric Corp. or its affiliates.

Connector Cable

With reference to the illustrative embodiments of FIG. 11, a 13.8 KV surface cabling can be utilized to connect switchgear trailer 40 to pump trailer 60. Surface cabling 50 can comprise a single cable line that houses a variety of functional cables such as power conductors, communication fiber optics cables, grounding, and ground check (to trip switchgear automatically if unplugged), with electrical and mechanical interlocks.

For example, the surface cabling 50 in FIG. 11 houses, without limitation, three main power conductors, six communication fibers, grounding and bonding cable, and two ground check cables. The ground check cable has sensors located thereon such that if it loses continuity at any time, it opens up the main switchgear breaker. This is a protection circuit in the event that, for example, an employee or someone removes the surface cabling 50 without deenergizing the cable, it will automatically deenergize itself. The sensors are located outside on the switchgear and the rear of the pump trailers 60, and are configured to sense the continuity in the cable for ground check.

In another example, the surface cabling 50 in FIG. 11 houses, without limitation, one or more of a main conductor 52, a ground check circuit conductor 58 (electrical interlock), grounding/bonding cable 56, fiber 54 for communication to pump trailer 60, camera communications, and main power cabling 52. Surface cabling 50 can be used to operably connect the switchgear distributions from switchgear trailer 40 to a corresponding pump trailer 60 or blender. Either a single line of surface cabling 50, or multiple lines of surface cabling 50, may be utilized depending on capacity needs.

In certain illustrative embodiments, a ground check circuit conductor 58 (electrical interlock) is utilized. In certain embodiments, the electrical interlock can ensure that the cable is not energized when not connected. In other embodiments, the electrical interlock can electrically de-energize the circuit and disconnect the cable in response to the cable becoming energized to protect individuals and equipment.

In certain illustrative embodiments, surface cabling 50 is an open-air relay cable. An open-air relay cable is different from a superconductor cable because a superconductor cable is housed in fluid. The current capacity of a superconducting cable exceeds the insulation capacity or specifications of the cable, so a supercooled liquid is used to lower the rating of the cable by cooling or lowering the operating temperature of the insulation and help raise the capability of the outer insulation of the cable.

By comparison, when surface cabling 50 is an open-air relay cable, the medium voltage can be maintained from the switchgear trailer 40 to the pump trailer 60, and then the voltage on the secondary side of the 13.8 KV, 2100, 40-volt trailer transformer 62 on pump trailer 60 can be reduced down. This is the location where the current is increased, on pump trailer 60 instead of before reaching pump trailer 60 as would occur with superconducting cable. The surface cabling 50 that is an open-air relay cable is manageable in the enclosure to the motor on pump trailer 60 to handle the high current rate to get the current or voltage and current from switchgear trailer 40 to the actual working motor on pump trailer 60. The current increase occurs in an efficient manner within the electrical components of the pump trailer 60, with the trailer transformer 62 and the VFD 66 all in one package, in very short runs of cabling at that moment.

Auxiliary Power

With reference to the illustrative embodiment of FIG. 12, an auxiliary trailer 80 is provided. Auxiliary trailer 80 operably connects to an “MCC” or motor control center on switchgear trailer 40. The MCC includes a 480 volt side to power auxiliary loads and a 13.8 side as well, encompassed in one unit on switchgear trailer 40. The auxiliary loads can be used to power, for example, sand, turbine, chemicals, data vans, air compressors, lube oils, cooling fans, and other auxiliary units other than the motors and pumps which are primary components of pump trailer 60.

Safety Connect/Disconnect From Grid Power

In certain illustrative embodiments, methods are provided for connecting/disconnecting system 10 from grid electric power 20. A circumstance when disconnect would be needed would be, for example, a safety concern such as if there is a major fault, major failure or a need to service the substations or for preventative maintenance on the substations or in order to reboot one or more components of system 10.

With reference to the illustrative embodiment of FIG. 13a and FIG. 13b, a power pole of grid electric power 20 has electric power coming in, and is operably connected to mobile substations 30. A connect/disconnect switch is located on top of the power pole. Connect/disconnect switch can be moved between an open position (FIG. 13a) and a closed position (FIG. 13b). The power line has a high line of, for example, 24.9 kV and a 45-megawatt supply. Power will only be delivered to switchgear 40 when the disconnect switch is in the closed position. The disconnect switch can be opened or closed by an actuator on the side of the power pole.

In certain illustrative embodiments, a method of connecting to electric grid power can include the following steps: (i) the power company will position a delivery cable between the electric grid power 20 and the mobile substations 30; (ii) the power company will visually inspect to verify that the actuator is in the open position with an air break; (iii) upon verification of step (ii), power company will connect cable to mobile substations 30; (iv) power company will access a pair of key blocks A and B on the actuator that mechanically prevent the actuator from closing, whereby key block A is for a first mobile substation 30a and key block B is for a second mobile substation 30b, and turn the keys in key block A and key block B from an “open” to a “closed” position; and (v) upon step (iv) occurring, a key C is made available for accessing the actuator and converting the actuator from an open to a closed position.

The first mobile substation 30a cable is plugged in, a first key is removed and installed in a first key socket. A second mobile substation 30b is plugged in, key block B is removed, plugged into the actuator key block B socket. In response to key block A and key block B being turned, key block C may be released. The moment that the key block C is released and inserted into the actuator mechanical lock; the actuator is released. At that time, the air disconnect switch may be automatically closed. In certain embodiments, the air disconnect switch may be closed by at least one technician. At the moment that the air disconnect switch is closed, the technician may verify that all three key sockets (i.e., key socket A, key socket B, and key socket C) are securely in place on the top of the pole that goes into the first mobile substation 30a and the second mobile substation 30b and verifies that the trailer transformer 62 has 24.9 KV. Once the trailer transformer 62 is verified, the technician may close at least one breaker, preferably a main breaker associated with the first mobile substation 30a and the second mobile substation 30b, to energize the trailer transformer 62. At that time, the technician confirms that there is 13.8 KV on the secondary side. If so, the technician closes and energizes the switchgear trailer 40 at that time.

In certain illustrative embodiments, a more streamlined method of connecting to electric grid power can include the steps of: (i) verifying that the actuator is open; (ii) plugging the cables in; (iii) once the cables are plugged in, closing the disconnect without having any of a plurality of interlocks requiring manual manipulation; (iv) verifying the voltages; and (v) closing the breakers.

In FIG. 14, a top view of the VFD 66 is depicted, detailing at least one coupling system 86 and at least one actuator 88. In certain embodiments, the VFD 66 may utilize a redesigned coupling system 86 to operate at least two actuators 88. In certain embodiments, the at least two actuators 88 may be electrical actuators capable of maintaining at least 24 VDC in power.

In the alternative embodiment shown in FIG. 15, cross-sectional view of an exemplary mobile substation, where a switch can be at the rear of the mobile power substation and can be connected to the 24.9 KV power supply. In response to a plurality of primary connections, a 24.9 KV breaker and a breaker enclosure can be connected to the switch at the rear of the mobile power substation. Anterior to the 24.9 KV breaker and the breaker enclosure, a relay enclosure can monitor the 24.9 KV breaker functionality.

In certain illustrative embodiments, each mobile power substation 30 can have 24.9 KV/13.8 KV, 30 MVA capability that can supply 13.8 KV to the switchgear trailer 40. Each 30 MVA mobile power substation 30 can be utilized in conjunction with a distribution network within switchgear trailer 40 powering a plurality of VFDs managing the functionality of medium voltage motors and low voltage motors. The mobile substations 30 operating in parallel will be able to deliver up to 60 MW of available power to accomplish fracturing operations. System 10 will be capable of monitoring all power usage and with remote functionality of circuit breakers and switches.

In certain illustrative embodiments, each mobile power substation 30 can deliver the 13.8 KV voltage needed to operate electrical equipment for a fracturing operation effectively and efficiently. Each mobile power substation 30 can have capacity for a primary voltage of 24.9 KV equipped with a Delta primary winding. The secondary WYE winding can deliver the needed 13.8 KV system voltage to the switchgear trailer 40. By using the WYE winding on the secondary of the transformer of each mobile power substation 30, a high resistance grounding system can provide for integrity and safety of personnel.

In certain illustrative embodiments, the parallel operation for the pair of mobile power substations 30 means that neither substation is prioritized, and the load requirement is equally shared between the transformers in the two substations 30. There is no controller (automated or manual) that is distributing load between the transformers in an unequal manner, e.g., pulling 20 megawatts of power from one transformer while pulling 10 megawatts of power from the other transformer. Further, if (for example) a transformer 32a/32b in the first mobile substation 30 goes out of operation, system 10 will operate solely from the other transformer 32c/32d in second mobile substation 30, without syncing up to any external power sources to power fracturing operations. The mobile substation can share the load between at least two mobile substations at equal percentages based on total amount of load. In certain embodiments, the mobile substation can provide more load than a transformer. In another embodiment, the first mobile substation can be actively in use, and the second mobile substation can remain in an open position to tie the breaker.

FIG. 16 and FIG. 17 shows the rear side, or turbine input bushings (e.g., Elliott® bushings) and output bay controls side, of switchgear trailer 40, including where the turbine is connected to the main buss via the 15 KV input bushings. In each bay, there are protection relays and fault monitoring of the switchgear equipment.

In the alternative embodiment shown in FIG. 18 and FIG. 19, the surface cabling 50 houses, without limitation, one or more of the main conductors 52, a ground check circuit conductor 58 (electrical interlock), grounding/bonding cable 56, fiber 54 for communication to pump trailer 60, camera communications, and main power cabling 52. Surface cabling 50 can be used to operably connect the switchgear distributions from switchgear trailer 40 to a corresponding pump trailer 60 or blender. Either a single line of surface cabling 50, or multiple lines of surface cabling 50, may be utilized depending on capacity needs.

In the alternative embodiment of FIG. 20, the transformer on the MCC takes 13.8 KV and passes it through a 480-volt transformer and then feeds all of these auxiliary loads to power. In the event that 13.8 is lost, the 480-volt loads are still available. This power can be utilized to crank the turbine, and may send auxiliary power to the grid, the mobile substations and to move auxiliary lube oils, fans, and cooling fans on the frac pump trailers. So, the moment 13.8 KV is lost, the 40-volt black start generator can fire up

Control System

Various types of control systems can be provided for regulating various equipment and systems within the electric grid powered fractioning operation.

For example, in certain illustrative embodiments, a control system can be used energize power flow at the switchgear trailer 40. Each switchgear distribution is fitted with a CB or circuit breaker. To “energize” a particular distribution, a human operator or technician would close the air switch on the switchgear, which is a manual lever. At that moment, 13.8 KV power is sent to the primary side of the breaker, the circuit breaker. The operator can access the breaker at an HMI (human machine interface). There are multiple different places or locations within system 10 that the operator can control this breaker, such as a switchgear control house, where the HMI is located. For a switchgear having a plurality of distributions, the operator can engage a specific distribution at a “bay.” The operator locates a bay to energize, and engages a close option. The HMI asks the operator to confirm that closing is desired. At that moment, the operator hits yes, and automatically the breaker closes. At that time, the HMI sends power to the main breaker on the frac pump trailer or blender. And at that same time, with the same HMI, the operator can go to frac pump 1 and hit close and the HMI will close the breaker on the frac pump trailer. Thus, in a first step, the operator first closes the air switch to the entirety of the CB, and then a second step, where from that point, the operator can power the equipment at the various “bays.” This procedure provides a second “on/off” switch for equipment of system 10, at or near an HMI for switchgear trailer 40, which is after the initial “on/off switch” for system 10 at the initial connect location where electric grid power 20 is accessed. In certain illustrative embodiments, the air switch on the switchgear trailer 40 is human controlled. This is due to electrical governing bodies that may require a visible disconnect so that the operator can see that there is a physical disconnect between the connectors, or because of space considerations where an actuator may be too large or take up too much space in an enclosed area. In other embodiments, the switch can be automated or remotely operated.

In certain illustrative embodiments, a control system can be used to monitor, regulate, and manage power flow at the switchgear trailer 40. These functions are performed without the need for an automated controller. In certain embodiments, the controller can refer to a manual maintenance associated with the load of the frac pump spread. In other embodiments, the controller can refer to the constant monitoring of the power generation plant, where the power generation plant can respond to the load demand associated with maintenance frequency.

It is generally known in the art to use an automated controller to receive a total desired flow rate of fracturing fluid to be pumped, using the controller to calculate a total amount of electric power required to achieve the required total flow rate, using the controller to receive information associated with an amount of power available from the utility electric grid pull load based on the calculation, and then using the controller to direct a mobile substation connected to a utility electric grid to provide electric power to one or more electric motors.

However, there are a number of disadvantages to this known method. For example, the desired rate can take a constant switching of various power generation sources, which is an inefficient means for achieving the frac rate. In certain embodiments, the constant switching can delay achieving the desired rate on-demand and cause swings on the power grid in response to utilizing non-efficient VFDs. In certain embodiments, the utilization of non-efficient VFDs can cause harmonic distortion and/or voltage flicker by failing to meet regulatory standards.

By comparison, the presently disclosed system and method can provide the available power for maximum frac demand and allow the frac line to retrieve the desired load demand. In certain embodiments, the presently disclosed system and method can reach all frac loads demands at any time and eliminate all sync circuits and load sharing hardware needed to powered generation equipment, which is a more efficient process.

For example, and without limitation, the control system can be configured to regulate a plurality of electorally powered fracturing units in delivery of a treatment fluid from a source of treatment fluid to a wellbore, and the plurality of electrically powered fracturing units can be operatively associated with the utility electric grid, and can include at least one electric motor and at least one fluid pump coupled to the at least one electric motor, wherein the at least one electric motor is operatively coupled to a plurality of fracturing pumps and automatically controlled by at least one variable frequency drive.

Suitable controls and computer monitoring for the entire fracturing operation can take place at a single central location, which facilitates adherence to pre-set safety parameters. For example, a control center is indicated in a data van, where all frac operations are controlled and managed. In some embodiments, the control systems can remotely control operations of a plurality of maintenance trailers, a plurality of pump trailers, a plurality of auxiliary power units, a plurality of switchgear controls, and/or a plurality of frac pumps and blenders, from which operations can be managed via communications link. Examples of operations that can be controlled and monitored remotely from control center via communications link can be the breaker functionality of the system and method; the functionality of the frac pump and blenders; and the monitoring of the bus systems. This set-up is distinguishable from existing methods because known systems require a single point of operation without the complete visibility of the systems, operating platforms, and/or alarm logging/system health.

Blender

In certain illustrative embodiments as described herein, system can include one or more electrically powered blenders that are powered by utility electric grid 20. The electrically powered blender units can be modular in nature for housing on pump trailer 60, or housed independently. An electric blending operation permits greater accuracy and control of fracturing fluid additives. Blenders can be capable of providing fracturing fluid to pump 70 for delivery to the wellbore. In certain embodiments, blender module 41 (not shown) can include at least one fluid additive source, at least one fluid source, and at least one centrifugal blender tub. Electric power can be supplied from utility electric grid 20 to blender module 41 to effect blending of a fluid from fluid source with a fluid additive from fluid additive source to generate the fracturing fluid. In certain embodiments, the fluid from fluid source can be, for example, water, oils or methanol blends, and the fluid additive from fluid additive source can be, for example, friction reducers, gellents, gellent breakers or biocides.

Comparison Example

Table 2, shown below, compares and contrasts the operational and power requirements and capabilities for a grid-powered fracturing operation (as described herein) with those of an on-site powered fracturing operation, and demonstrates the advantages and efficiencies of the presently disclosed system and method.

TABLE 2

Comparison of Operational/Power Requirements

and Capabilities for Grid Powered

Operation vs. On-Site Powered Operation

Grid Powered Operation
On-Site Powered Operation

Mobile Substation
Gas Turbine

Uninterrupted Power
Power Fluctuates

Power On-Demand
Power On-Demand

In Table 2, the “Grid Powered Operation” utilizes a plurality of mobile substations to supply power to the buss network to power all frac equipment and auxiliary support.

In contrast, the “On-Site Powered Operation” utilizes one or more gas turbines to supply power to the buss network to power all frac equipment and auxiliary support

Thus, the “Grid Powered Operation” is a significantly more stable, constant power source that can provide uninterrupted power to the plurality of frac fleets and the plurality of auxiliary fleets.

Types of Operations

The presently disclosed system and method can be utilized for providing utility electrical power and delivering fracturing fluid to a wellbore at a fracturing operation. In a conventional fracturing operation, a “slurry” of fluids and additives is injected into a hydrocarbon bearing rock formation at a wellbore to propagate fracturing. Low pressure fluids are mixed with chemicals, sand, and, if necessary, acid, and then transferred at medium pressure and high rate to vertical and/or deviated portions of the wellbore via multiple high pressure, plunger style pumps driven by diesel fueled prime movers. For example, the plunger-style fluid pumps can be coupled to at least one magnet motor, and the at least one magnet motor and the plunger-style fluid pump can each be solely powered by power accessed from the utility electric grid. The majority of the fluids injected will be flowed back through the wellbore and recovered, while the sand will remain in the newly created fractures, thus “propping” the newly created fractures open and providing a permeable membrane for hydrocarbon fluids and gases to flow through so they may be recovered.

The treatment fluid provided for pressurized delivery to the wellbore can be continuous with the wellbore and with one or more components of the fracturing fleet, in certain illustrative embodiments. In these embodiments, continuous generally means that downhole hydrodynamics are dependent upon constant flow (rate and pressure) of the delivered fluids, and that there should not be any interruption in fluid flow during delivery to the wellbore if the fracture is to propagate as desired. However, it should not be interpreted to mean that operations of the fracturing fleet cannot generally be stopped and started, as would be understood by one of ordinary skill in the art. In certain illustrative embodiments, the treatment fluid can comprise a water-based fracturing fluid. In other illustrative embodiments, the treatment fluid can comprise a waterless liquefied petroleum gas (LPG) fracturing fluid, the use of which conserves water and can reduce formation damage caused by introducing water to the wellbore. In certain illustrative embodiments, the liquefied petroleum gas can comprise one or more gases from the group consisting of propane, butane, propylene and butylene. In other illustrative embodiments, the treatment fluid can suitably comprise, consist of, or consist essentially of: linear gelled water including but not limited to guar, hydroxypropyl guar (“HPG”) and/or carboxymethylhydroxypropyl guar (“CMHPG”), gelled water including but not limited to guar/borate, HPG/borate, guar/zirconium, HPG/zirconium and/or CMHPG/zirconium, gelled oil, slick water, slick oil, poly emulsion, foam/emulsion including but not limited to N₂foam, viscoelastic, and/or CO₂emulsion, liquid CO₂, N₂, binary fluid (CO₂/N₂) and/or acid.

While the present description has specifically contemplated a fracturing system, the system and method can also be utilized in connection with other hydrocarbon-producing wellbore completions. For example, the system and method utilizing utility grid power as described herein can be used to power pumps for other purposes, or to power other oilfield equipment. High rate and pressure pumping equipment, hydraulic fracturing equipment, well stimulation pumping equipment and/or well servicing equipment could also be powered using the present system and method.

In addition, the system and method can be adapted for use in other art fields requiring high torque or high rate pumping operations, such as pipeline cleaning or dewatering mines. In certain embodiments, the system and method can use electrical power by utilizing the gird network to power a plurality of substations that can be moved from multiple locations to provide frac support via at least one cable providing power and communication.

Advantages

As discussed above, the electric grid powered fracturing operation described herein provides significant operational advantages and efficiencies over traditional fracturing systems.

For example, the presently disclosed system and method has significant ramp up efficiency when utility grid power is utilized. In general, utility grid power providers are very sensitive to loads that are being drawn from the grid as well as load rejection. Utility providers typically supply reactors, capacitors, filter banks, etc., so that if there is a large spike in load if power is cut off, or if there is a big draw in load, power is still available.

The presently disclosed system and method allow a user to load up a fracturing fleet and begin pumping with a gradual and manageable increase in load that supplies enough power to meets fracturing requirements, but does not negatively impact the utility electric grid. For example, pump trailer 60 is designed to deal with inductive loads that have a high end rush of current when they start to turn. For example, a 7,000 horsepower motor 68 on pump trailer 60 with a rate of at least 600-700 amps and an inductive load outside of a VFD 66 may experience at least 1,400 to 2,000 amps within the system 10. A larger cable comes off the secondary of the transformer lining which would be at about 2,100 volts going to a medium voltage 1,000 VFD 66 drive on pump trailer 60. At that moment, there is little to no current drawn when the VFD 66 is powered up. It is not until the electric motor on pump trailer 60 is turned, or until the VFD 66 is instructed to spin the electric motor at, e.g., 1 rpm, that a gradual increase in current is recognized, and maintained and managed by the VFD 66. The electric motor is operated at whatever rpm reference at full torque is desired at that moment, while managing the current voltage and frequency. As a result, on the primary side of the transformer on pump trailer 60, there is a very smooth increase in current which would be percentages less than what is seen on the secondary side of the transformer because as voltage increases, current decreases. For example, when the motor is pulling about 600 amps, the primary side of the transformer might only see 100-115 amps. This results in a system that is compatible with utilizing utility grid power.

The presently disclosed system and method also demonstrates desirable harmonics. Fracturing operations powered by a utility grid are required to stay within the IEEE standards of harmonics for power companies, or else the operators and utility companies could be subject to fines and penalties. The presently disclosed system and method is designed to minimize harmonics on the VFD to stay below approximately 5% harmonics while operating on utility grid power, and not tripping the utility grid. In certain illustrative embodiments, system 10 utilizes a pump trailer 60 with a 36-pulse drive on the VFD so that the switching is accelerated, as opposed to a 6 or 12 pulse drive, where the switching would be spaced out which can cause causes large and frequent voltage spikes on the grid and harmonic imbalance which can damage electrical components of the utility grid.

In certain embodiments, the VFD can meet all IEEE standards associated with THD and voltage flicker. In certain embodiments, the system can be enclosed to one frac unit encompassing a plurality of electrical components to achieve fracturing operations.

In certain illustrative embodiments, the system and method described herein can be used in connection with a system and method for use in fracturing underground formations using liquid petroleum gas, as described in U.S. Pat. No. 10,107,085, published Oct. 23, 2018, assigned to Typhon Technology Solutions, LLC, the contents and disclosure of which are incorporated by reference herein in their entirety.

It is to be understood that the subject matter herein is not limited to the exact details of construction, operation, exact materials, or illustrative embodiments shown and described, as modifications and equivalents will be apparent to one skilled in the art. Accordingly, the subject matter is therefore to be limited only by the scope of the appended claims.

Claims

1. A system comprising: a plurality of mobile substations, each mobile substation comprising at least two transformer units that are operatively coupled to a utility electric grid, wherein the at least two transformer units are configured to operate in a parallel orientation;a plurality of electric motors, each electric motor operatively coupled to at least one fracturing pump and operatively controlled by at least one variable frequency drive; andat least one open air relay cable operatively coupled between at least one switchgear and the plurality of electric motors.
2. The system of claim 1, wherein the at least one variable frequency drive is configured to automatically deliver at least 60 MW to the plurality of electric motors in an absence of a controller, and wherein the load requirement is equally shared between the at least two transformer units operating in the parallel orientation.
3. The system of claim 1, wherein the at least two mobile substations and at least one auxiliary power trailer have redundancy in an event of malfunction of one of the at least two mobile substations or electrical generation failure.
4. The system of claim 1, wherein the fracturing pump is configured to perform hydraulic fracturing using power from the utility electric grid.
5. The system of claim 1, wherein the at least one open air relay cable is configured to deliver power to the plurality of electric motors.
6. The system of claim 1, wherein the plurality of electric motors are configured to drive the fracturing pump using power from the utility electric grid.
7. The system of claim 1, wherein the at least one fracturing pump comprises at least one hydraulic fracturing pump.
8. The system of claim 1, wherein the transformer units are configured to step down the power for delivery to a switchgear.
9. The system of claim 1, further comprising a well site comprising a wellbore and a source of electricity consisting of the utility electric grid.
10. The system of claim 1, further comprising a source of treatment fluid, wherein the treatment fluid comprises a liquefied petroleum gas.
11. The system of claim 1, further comprising a control system configured to regulate a plurality of electorally powered fracturing units in delivery of a treatment fluid from a source of treatment fluid to a wellbore.
12. The system of claim 1, further comprising at least one pump trailer at a well site for housing the plurality of electric motors, the at least one fracturing pump and the at least one variable frequency drive.
13. The system of claim 1, further comprising an AC permanent magnet motor capable of operation in the range of up to 800 rpms and up to 25 ft/lbs of torque and at 2000 hp during fracturing operations.
14. The system of claim 1, further comprising a plunger-style fluid pump coupled to at least one magnet motor, and wherein the at least one magnet motor and the plunger-style fluid pump are each solely powered by power accessed from the utility electric grid.
15. The system of claim 14, further comprising at least one fracturing unit configured to deliver pressurized liquefied petroleum gas to a wellbore.
16. A system comprising: a well site comprising a wellbore and a source of electricity consisting of a utility electric grid;a plurality of mobile substations, each mobile substation comprising at least two transformer units that are operatively coupled to the utility electric grid, wherein the at least two transformer units are configured to operate in a parallel orientation;a plurality of electrically powered fracturing units operatively associated with the utility electric grid, each electrically powered fracturing unit comprising at least one electric motor and at least one fluid pump coupled to the at least one electric motor, wherein the at least one electric motor is operatively coupled to a plurality of fracturing pumps and automatically controlled by at least one variable frequency drive, and wherein the at least one electric motor comprises an AC permanent magnet motor capable of operation in the range of up to 800 rpms and up to 25 ft/lbs of torque and at 2000 hp during fracturing operations;at least one open air relay cable operatively coupled between a plurality of switchgears and the at least one electric motor;a source of treatment fluid;a control system for regulating the plurality of electrically powered fracturing units in delivery of the treatment fluid from the source of treatment fluid to the wellbore; anda pump trailer at the well site for housing the at least one electric motor, the plurality of fracturing pumps and the at least one variable frequency drive.
17. The system of claim 16, wherein the at least one variable frequency drive is configured to automatically deliver at least 60 MW to the plurality of electric motors in an absence of a controller, and wherein the load requirement is equally shared between the at least two transformer units operating in the parallel orientation.
18. The system of claim 16, wherein the at least two mobile substations and at least one auxiliary power trailer have redundancy in an event of malfunction of one of the at least two mobile sub stations or electrical generation failure.
19. The system of claim 16, wherein the at least one open air relay cable is capable of delivering power to the plurality of electric motors.
20. The system of claim 16, wherein the treatment fluid comprises a liquefied petroleum gas.
21. The system of claim 16, wherein the control unit is configured to provide independent control of the plurality of mobile substations operating in parallel.
22. The system of claim 16, further comprising an AC permanent magnet motor capable of operate in the range of up to 800 rpms and up to 25 ft/lbs of torque and at 2000 hp during fracturing operations, and a plunger-style fluid pump coupled to the at least one electric motor.
23. A method comprising: accessing power from a utility electric grid;operating at least two transformer units in parallel to step down the line voltage of the power from the utility electric grid;passing the power from the at least two transformer units through at least one switchgear;delivering the power from the at least one switchgear to a plurality of electric motors using at least one open air relay cable; anddriving a plurality of pumps with the plurality of electric motors.
24. The method of claim 23, further comprising performing hydraulic fracturing using power from the utility electric grid.
25. The method of claim 23, wherein the plurality of pumps comprise a plurality of electric pumps.
26. The method of claim 23, wherein when the at least two transformer units are operated in parallel, the at least two mobile substations and at least one auxiliary power trailer have redundancy in an event of malfunction of one of the mobile substations of the at least two mobile substations or electrical generation failure, and at least 60 MW is automatically delivered to the plurality of electric motors in an absence of a controller, wherein automatically delivering at least MW ensures that load requirement is equally shared between the at least two transformer units operating in parallel.
27. The method of claim 23, further comprising providing a fracturing fluid for pressurized delivery to a wellbore, wherein the fracturing fluid comprises one or more fluids from the group of linear gelled water, gelled water, gelled oil, slick water, slick oil, poly emulsion, foam/emulsion, liquid CO2, N2, binary fluid and acid.
28. The method of claim 23, further comprising providing an electric blender module, the electric blender module comprising a fluid source, a fluid additive source, and a blender tub.
29. The method of claim 23, further comprising utilizing at least one fracturing unit to deliver pressurized liquefied petroleum gas to a wellbore.
30. A method comprising: providing a source of electric power at a site containing a wellbore to be fractured, wherein the source of electrical power is a utility electric grid;providing one or more electric fracturing units at the site, the electric fracturing units comprising an electric motor and a coupled fluid pump, the electric motor operatively associated with the source of electric power;providing a fracturing fluid for pressurized delivery to a wellbore, wherein the fracturing fluid comprises one or more fluids from the group of linear gelled water, gelled water, gelled oil, slick water, slick oil, poly emulsion, foam/emulsion, liquid CO2, N2, binary fluid and acid;providing at least two transformer units at a site containing a wellbore to be fractured, wherein the at least two transformer units are housed in one or more mobile substations;operating the at least two transformer units in parallel to receive power from a utility electric grid and step down the line voltage of the power from the utility electric grid to produce an electric power supply;providing one or more pump trailers at the site, the pump trailers comprising an electric motor and a coupled fluid pump, the electric motor operatively associated with the electric power supply;providing a fracturing fluid for pressurized delivery to a wellbore;operating the electric motor using the electric power supply to pump the fracturing fluid to the wellbore;providing an electric blender module, the electric blender module comprising a fluid source, a fluid additive source, and a blender tub; andsupplying electric power to the electric blender module from the electric power supply to effect blending of a fluid from the fluid source with a fluid additive from the fluid additive source to generate the fracturing fluid.

RELATED APPLICATIONS

This application claims the benefit, and priority benefit, of U.S. Provisional Patent Application Ser. No. 63/421,245, filed Nov. 1, 2022, the disclosure and contents of which are incorporated by reference herein in their entirety.

US Referenced Citations (551)

Number	Name	Date	Kind
1740587	Greenfield	Dec 1929	A
1753050	Hughes	Apr 1930	A
1869859	Morrow	Aug 1932	A
1907721	Booth et al.	May 1933	A
2272169	Granberg	Feb 1942	A
2484321	Stubau	Oct 1949	A
2554228	Walker et al.	May 1951	A
2814254	Litzenberg	Nov 1957	A
2824434	Stern	Feb 1958	A
3113620	Hemminger	Dec 1963	A
3113621	Krueger et al.	Dec 1963	A
3147144	Wilhelm	Sep 1964	A
3187958	Swart	Jun 1965	A
3525404	Kelly	Aug 1970	A
3533605	Futty et al.	Oct 1970	A
3722595	Kiel	Mar 1973	A
3764233	Strickland	Oct 1973	A
3773438	Hall et al.	Nov 1973	A
3782695	Sandiford	Jan 1974	A
3791682	Mitchell	Feb 1974	A
3801229	Henderson	Apr 1974	A
3837179	Barth	Sep 1974	A
3842910	Zingg et al.	Oct 1974	A
3893655	Sandiford	Jul 1975	A
3901313	Doniguian	Aug 1975	A
4060988	Arnold	Dec 1977	A
4100822	Rosman	Jul 1978	A
4159180	Cooper	Jun 1979	A
4272224	Kabele	Jun 1981	A
4311395	Douthitt	Jan 1982	A
4341508	Rambin, Jr.	Jul 1982	A
4460276	Arribau	Jul 1984	A
4471619	Nolley, Jr.	Sep 1984	A
4526633	Lawrence et al.	Jul 1985	A
4538221	Crain	Aug 1985	A
4538222	Crain	Aug 1985	A
4557325	Gall	Dec 1985	A
4694907	Stahl et al.	Sep 1987	A
4779186	Handke	Oct 1988	A
4840292	Harvey	Jun 1989	A
4850702	Arribau et al.	Jul 1989	A
4850750	Cogbill	Jul 1989	A
4854714	Davis	Aug 1989	A
4916631	Crain	Apr 1990	A
5095221	Tyler	Mar 1992	A
5184456	Rumford et al.	Feb 1993	A
5247991	Polcer	Sep 1993	A
5248005	Mochizuki	Sep 1993	A
5334898	Skybyk	Aug 1994	A
5441340	Cedillo	Aug 1995	A
5445223	Nelson	Aug 1995	A
5512811	Latos	Apr 1996	A
5517822	Haws et al.	May 1996	A
5582250	Constien	Dec 1996	A
5611732	Tirumalai	Mar 1997	A
5778657	Ohtomo et al.	Jul 1998	A
5899272	Loree	May 1999	A
5907970	Havlovick et al.	Jun 1999	A
5975206	Woo	Nov 1999	A
6007227	Carlson	Dec 1999	A
6024170	McCabe	Feb 2000	A
6056521	Leu et al.	May 2000	A
6059539	Nyilas et al.	May 2000	A
6060436	Snyder	May 2000	A
6120175	Tewell	Sep 2000	A
6142878	Barin	Nov 2000	A
6161386	Lokhandwala	Dec 2000	A
6167965	Bearden et al.	Jan 2001	B1
6193402	Grimland	Feb 2001	B1
6233137	Kolos	May 2001	B1
6265786	Bosley et al.	Jul 2001	B1
6286986	Grimland	Sep 2001	B2
6298652	Mittricker et al.	Oct 2001	B1
6306800	Samuel	Oct 2001	B1
6325142	Bosley et al.	Dec 2001	B1
6334746	Nguyen	Jan 2002	B1
6355987	Bixel	Mar 2002	B1
6398521	Yorulmazoglu	Jun 2002	B1
6495929	Bosley et al.	Dec 2002	B2
6644844	Neal et al.	Nov 2003	B2
6705397	Hershberger	Mar 2004	B2
6765304	Baten et al.	Jul 2004	B2
6773238	Sprakel	Aug 2004	B1
6907737	Mittricker et al.	Jun 2005	B2
6973948	Pollack et al.	Dec 2005	B2
6979116	Cecala et al.	Dec 2005	B2
6988549	Babcock	Jan 2006	B1
7114322	Yamanaka et al.	Oct 2006	B2
7128142	Heathman et al.	Oct 2006	B2
7467051	Skjetne et al.	Dec 2008	B2
7484561	Bridges	Feb 2009	B2
7562708	Cogliandro et al.	Jul 2009	B2
7563076	Brunet et al.	Jul 2009	B2
7581379	Yoshida et al.	Sep 2009	B2
7589379	Amaratunga et al.	Sep 2009	B2
7608935	Scherzer	Oct 2009	B2
7669657	Symington et al.	Mar 2010	B2
7677316	Butler et al.	Mar 2010	B2
7681647	Mudunuri et al.	Mar 2010	B2
7683499	Saucier	Mar 2010	B2
7717193	Egilsson et al.	May 2010	B2
7819181	Entov et al.	Oct 2010	B2
7819209	Bezner	Oct 2010	B1
7828057	Kearl et al.	Nov 2010	B2
7832257	Weightman et al.	Nov 2010	B2
7836949	Dykstra	Nov 2010	B2
7841394	McNeel et al.	Nov 2010	B2
7845413	Shampine et al.	Dec 2010	B2
7908230	Bailey et al.	Mar 2011	B2
7921914	Bruins	Apr 2011	B2
7926562	Poitzsch et al.	Apr 2011	B2
7958716	Zeigenfuss	Jun 2011	B2
8025099	Mesher	Sep 2011	B2
8056635	Shampine et al.	Nov 2011	B2
8063515	Larsen et al.	Nov 2011	B2
8083504	Williams	Dec 2011	B2
8152492	Beck et al.	Apr 2012	B2
8171993	Hefley	May 2012	B2
8253298	Saban et al.	Aug 2012	B2
8328996	St. Germain et al.	Dec 2012	B2
8362634	Perry	Jan 2013	B2
8474521	Kajaria et al.	Jul 2013	B2
8632320	Palomba et al.	Jan 2014	B2
8660760	Piipponen et al.	Feb 2014	B2
8789591	Smith	Jul 2014	B2
8844626	Krug	Sep 2014	B1
8851860	Mail	Oct 2014	B1
8882336	Wolford	Nov 2014	B1
8899823	Oldham	Dec 2014	B2
8915084	Rogers et al.	Dec 2014	B2
8936097	Heijnen et al.	Jan 2015	B2
8951130	Neufelder et al.	Feb 2015	B2
8961247	Gjerpe	Feb 2015	B2
8997904	Cryer et al.	Apr 2015	B2
9068506	Eleftheriou et al.	Jun 2015	B2
9103193	Coli	Aug 2015	B2
9121257	Coli	Sep 2015	B2
9206684	Parra et al.	Dec 2015	B2
9316216	Cook et al.	Apr 2016	B1
9322595	Shinn	Apr 2016	B1
9366114	Coli	Jun 2016	B2
9395049	Vicknair et al.	Jul 2016	B2
9410410	Broussard et al.	Aug 2016	B2
9435175	Chong et al.	Sep 2016	B2
9452394	Weinstein et al.	Sep 2016	B2
9461469	Li et al.	Oct 2016	B2
9534473	Morris et al.	Jan 2017	B2
9556721	Jang et al.	Jan 2017	B2
9562420	Morris et al.	Feb 2017	B2
9608500	McCartney et al.	Mar 2017	B2
9611728	Oehring	Apr 2017	B2
9624913	Friesth	Apr 2017	B2
9650879	Broussard et al.	May 2017	B2
9829002	Crom	Nov 2017	B2
9893500	Oehring et al.	Feb 2018	B2
9897394	O'Donnell et al.	Feb 2018	B2
9903373	Hawes et al.	Feb 2018	B2
9920692	Dahlem	Mar 2018	B2
9945365	Hernandez	Apr 2018	B2
9995218	Oehring et al.	Jun 2018	B2
10008880	Vicknair et al.	Jun 2018	B2
10030579	Austin et al.	Jul 2018	B2
10076733	Morris et al.	Sep 2018	B2
10107084	Coli	Oct 2018	B2
10107085	Coli	Oct 2018	B2
10167863	Cook et al.	Jan 2019	B1
10221668	Coli	Mar 2019	B2
10221856	Hernandez et al.	Mar 2019	B2
10227855	Coli	Mar 2019	B2
10280724	Hinderliter	May 2019	B2
10286804	Huff et al.	May 2019	B2
10344575	Lewis	Jul 2019	B2
10371012	David et al.	Aug 2019	B2
10374485	Morris et al.	Aug 2019	B2
10378326	Morris et al.	Aug 2019	B2
10385669	Hodgson et al.	Aug 2019	B2
10415332	Morris et al.	Sep 2019	B2
10465491	Moore	Nov 2019	B2
10502042	Coli	Dec 2019	B2
10505366	Oresti	Dec 2019	B2
10518229	Morris et al.	Dec 2019	B2
10519730	Morris et al.	Dec 2019	B2
10541633	Hudson	Jan 2020	B2
10544753	Filippone	Jan 2020	B2
10563490	Ladron de Guevara Rangel	Feb 2020	B2
10577248	Harper	Mar 2020	B2
10598258	Oehring et al.	Mar 2020	B2
10648311	Oehring	May 2020	B2
10648312	Coli	May 2020	B2
10649427	Krippner et al.	May 2020	B2
10655435	Oehring et al.	May 2020	B2
10673238	Boone et al.	Jun 2020	B2
10686301	Oehring et al.	Jun 2020	B2
10689961	Coli	Jun 2020	B2
10697275	Krippner et al.	Jun 2020	B2
10699822	Orban et al.	Jun 2020	B2
10704422	Davis et al.	Jul 2020	B2
10718194	Coli	Jul 2020	B2
10718195	Coli et al.	Jul 2020	B2
10724306	Myers et al.	Jul 2020	B2
10724341	Krippner et al.	Jul 2020	B2
10724353	Coli et al.	Jul 2020	B2
10724515	Cook et al.	Jul 2020	B1
10731561	Oehring et al.	Aug 2020	B2
10745975	Orban et al.	Aug 2020	B2
10760348	Krippner et al.	Sep 2020	B2
10774630	Coli et al.	Sep 2020	B2
10784658	Rochin Machado et al.	Sep 2020	B2
10794165	Fischer et al.	Oct 2020	B2
10801311	Cui et al.	Oct 2020	B1
10808503	Rajagopalan et al.	Oct 2020	B2
10833507	Manson	Nov 2020	B2
10837270	Coli	Nov 2020	B2
10851634	Coli	Dec 2020	B2
10858923	Nguyen	Dec 2020	B2
10876386	Coli	Dec 2020	B2
10883352	Headrick	Jan 2021	B2
10895138	Coli	Jan 2021	B2
10914154	Reid et al.	Feb 2021	B2
10962305	Morris	Mar 2021	B2
10982521	Coli et al.	Apr 2021	B2
11002125	Coli	May 2021	B2
11009162	Oehring et al.	May 2021	B1
11035207	Oehring et al.	Jun 2021	B2
11053853	Li et al.	Jul 2021	B2
11070109	Morris	Jul 2021	B2
11073242	Morris	Jul 2021	B2
11075520	Pedersen et al.	Jul 2021	B2
11118438	Coli	Sep 2021	B2
11143000	Li et al.	Oct 2021	B2
11181107	Oehring et al.	Nov 2021	B2
11187069	Coli	Nov 2021	B2
11203924	Oehring et al.	Dec 2021	B2
11208878	Oehring	Dec 2021	B2
11251650	Liu et al.	Feb 2022	B1
11255173	Coli	Feb 2022	B2
11319946	Graybill	May 2022	B2
11359462	Morris et al.	Jun 2022	B2
11378282	Field et al.	Jul 2022	B2
11391133	Coli	Jul 2022	B2
11391136	Coli	Jul 2022	B2
11391269	Tanner	Jul 2022	B2
11401797	Newman	Aug 2022	B1
11408262	Reckels et al.	Aug 2022	B2
11434763	Morris et al.	Sep 2022	B2
11448050	Newman	Sep 2022	B1
11451016	Oehring et al.	Sep 2022	B2
11454170	Oehring et al.	Sep 2022	B2
11506026	Bishop	Nov 2022	B2
11506027	Sisk et al.	Nov 2022	B1
11512569	Stockstill et al.	Nov 2022	B2
11542786	Hinderliter et al.	Jan 2023	B2
11549506	Harvell et al.	Jan 2023	B2
11566506	Yeung et al.	Jan 2023	B2
11574372	Barbour	Feb 2023	B2
11592019	Lesanko et al.	Feb 2023	B2
11598190	Sharp et al.	Mar 2023	B2
11629584	Yeung et al.	Apr 2023	B2
11652365	Eckhardt et al.	May 2023	B2
11655807	Fischer et al.	May 2023	B2
11674365	Newman et al.	Jun 2023	B1
11677238	Liu et al.	Jun 2023	B2
11708752	Coli et al.	Jul 2023	B2
11718548	Katz	Aug 2023	B2
11719230	Garcia et al.	Aug 2023	B2
11725491	Zhong et al.	Aug 2023	B2
11728657	Hinderliter	Aug 2023	B2
11732561	Bosco et al.	Aug 2023	B1
11773699	Sherman et al.	Oct 2023	B2
11795800	Fischer et al.	Oct 2023	B2
11799356	Morris et al.	Oct 2023	B2
11802468	Publes et al.	Oct 2023	B2
20010000996	Grimland et al.	May 2001	A1
20010052704	Bosley et al.	Dec 2001	A1
20020002101	Hayashi	Jan 2002	A1
20030057704	Baten et al.	Mar 2003	A1
20030079479	Kristich et al.	May 2003	A1
20030161212	Neal	Aug 2003	A1
20030178195	Agee et al.	Sep 2003	A1
20040008571	Coody	Jan 2004	A1
20040011523	Sarada	Jan 2004	A1
20040042335	Cecala et al.	Mar 2004	A1
20040104577	Alger et al.	Jun 2004	A1
20040141412	Midas et al.	Jul 2004	A1
20040179961	Pugnet et al.	Sep 2004	A1
20040188360	Armstrong et al.	Sep 2004	A1
20040219040	Kugelev et al.	Nov 2004	A1
20050017723	Entov et al.	Jan 2005	A1
20050029476	Biester	Feb 2005	A1
20050103286	Ji	May 2005	A1
20050196298	Manning	Sep 2005	A1
20050248334	Dagenias et al.	Nov 2005	A1
20060042259	Marushima et al.	Mar 2006	A1
20060054318	Sarada	Mar 2006	A1
20060060381	Heathman et al.	Mar 2006	A1
20060065400	Smith	Mar 2006	A1
20060080971	Smith	Apr 2006	A1
20060175064	Yuratich	Aug 2006	A1
20060225402	Kierspe et al.	Oct 2006	A1
20060228233	Cook	Oct 2006	A1
20060254281	Badeer et al.	Nov 2006	A1
20060260331	Andreychuk	Nov 2006	A1
20060278394	Stover	Dec 2006	A1
20070029090	Andreychuk et al.	Feb 2007	A1
20070079617	Farmer et al.	Apr 2007	A1
20070099746	Hahlbeck	May 2007	A1
20070125544	Robinson et al.	Jun 2007	A1
20070132243	Wurtele et al.	Jun 2007	A1
20070201305	Heilman et al.	Aug 2007	A1
20070203991	Fisher et al.	Aug 2007	A1
20070204991	Loree et al.	Sep 2007	A1
20070256424	Briesch et al.	Nov 2007	A1
20070256830	Entov et al.	Nov 2007	A1
20070277982	Shampine et al.	Dec 2007	A1
20080006089	Adnan et al.	Jan 2008	A1
20080017369	Sarada	Jan 2008	A1
20080029267	Shampine et al.	Feb 2008	A1
20080044298	Laski	Feb 2008	A1
20080048456	Browning et al.	Feb 2008	A1
20080064569	Baxter et al.	Mar 2008	A1
20080066911	Luharuka et al.	Mar 2008	A1
20080203734	Grimes et al.	Aug 2008	A1
20080217024	Moore	Sep 2008	A1
20080236818	Dykstra	Oct 2008	A1
20080264625	Ochoa	Oct 2008	A1
20080264640	Eslinger	Oct 2008	A1
20080264641	Slabaugh et al.	Oct 2008	A1
20080264649	Crawford	Oct 2008	A1
20080267785	Cervenka et al.	Oct 2008	A1
20090068031	Gambier et al.	Mar 2009	A1
20090084558	Bloom	Apr 2009	A1
20090090504	Weightman et al.	Apr 2009	A1
20090092510	Williams	Apr 2009	A1
20090093317	Kajiwara et al.	Apr 2009	A1
20090095482	Surjaatmadja	Apr 2009	A1
20090101410	Egilsson et al.	Apr 2009	A1
20090120635	Neal	May 2009	A1
20090145660	Johnson et al.	Jun 2009	A1
20090194280	Gil et al.	Aug 2009	A1
20090308602	Bruins et al.	Dec 2009	A1
20100000221	Pfefferle	Jan 2010	A1
20100032663	Bulovic et al.	Feb 2010	A1
20100038077	Heilman et al.	Feb 2010	A1
20100038907	Hunt et al.	Feb 2010	A1
20100048429	Dobson, Jr.	Feb 2010	A1
20100051272	Loree	Mar 2010	A1
20100068071	Bowden	Mar 2010	A1
20100071561	Marwitz et al.	Mar 2010	A1
20100071899	Coquilleau et al.	Mar 2010	A1
20100089126	Sweeney	Apr 2010	A1
20100089589	Crawford et al.	Apr 2010	A1
20100090543	Cobb	Apr 2010	A1
20100132949	DeFosse et al.	Jun 2010	A1
20100310384	Stephenson et al.	Dec 2010	A1
20100326663	Bobier et al.	Dec 2010	A1
20100329072	Hagan et al.	Dec 2010	A1
20110024129	Turakhia	Feb 2011	A1
20110030951	Irvine et al.	Feb 2011	A1
20110036584	Weightman et al.	Feb 2011	A1
20110067882	Yeriazarian et al.	Mar 2011	A1
20110067885	Shampine et al.	Mar 2011	A1
20110073599	Nieves	Mar 2011	A1
20110085924	Shampine et al.	Apr 2011	A1
20110175579	Mazumdar	Jul 2011	A1
20110179799	Allam et al.	Jul 2011	A1
20110185702	Bilton et al.	Aug 2011	A1
20110198089	Panga et al.	Aug 2011	A1
20110206537	Simpson	Aug 2011	A1
20110236225	Leugemors et al.	Sep 2011	A1
20110247334	Alexander	Oct 2011	A1
20110272158	Neal	Nov 2011	A1
20110286858	England et al.	Nov 2011	A1
20110303323	Ding et al.	Dec 2011	A1
20120006550	Shampine et al.	Jan 2012	A1
20120067568	Palmer et al.	Mar 2012	A1
20120085541	Love et al.	Apr 2012	A1
20120181015	Kajaria et al.	Jul 2012	A1
20120223524	Williams	Sep 2012	A1
20120255734	Coli et al.	Oct 2012	A1
20120312531	Eslinger	Dec 2012	A1
20130045117	Wishart	Feb 2013	A1
20130098619	Shampine et al.	Apr 2013	A1
20130150268	Oldham	Jun 2013	A1
20130161016	Loree et al.	Jun 2013	A1
20130306322	Sanborn et al.	Nov 2013	A1
20140000899	Nevison	Jan 2014	A1
20140010671	Cryer et al.	Jan 2014	A1
20140027386	Munisteri	Jan 2014	A1
20140039708	Curtis et al.	Feb 2014	A1
20140048253	Andreychuck	Feb 2014	A1
20140060774	Motakef et al.	Mar 2014	A1
20140069651	Shampine et al.	Mar 2014	A1
20140102127	Yum et al.	Apr 2014	A1
20140124208	Loree et al.	May 2014	A1
20140147291	Burnette	May 2014	A1
20140205475	Dale	Jul 2014	A1
20140219824	Burnette	Aug 2014	A1
20140238683	Korach et al.	Aug 2014	A1
20140251623	Lestz	Sep 2014	A1
20140255214	Burnette	Sep 2014	A1
20140262292	Joseph et al.	Sep 2014	A1
20150036453	Wolford	Feb 2015	A1
20150068724	Coli	Mar 2015	A1
20150068754	Coli	Mar 2015	A1
20150078917	Torrey et al.	Mar 2015	A1
20150083235	Larson	Mar 2015	A1
20150114652	Lestz	Apr 2015	A1
20150129082	Murphy et al.	May 2015	A1
20150162427	Lee et al.	Jun 2015	A1
20150192003	Flores et al.	Jul 2015	A1
20150204171	Hocking	Jul 2015	A1
20150204173	Shampine et al.	Jul 2015	A1
20150211512	Wiegman et al.	Jul 2015	A1
20150240996	Kapoor	Aug 2015	A1
20150300291	Yamanaka et al.	Oct 2015	A1
20150308410	Goldstein	Oct 2015	A1
20150354322	Vicknair	Dec 2015	A1
20160003016	Chang et al.	Jan 2016	A1
20160061061	Ekanayake et al.	Mar 2016	A1
20160102612	Kaufman	Apr 2016	A1
20160175793	Granados	Jun 2016	A1
20160177675	Morris	Jun 2016	A1
20160177678	Morris et al.	Jun 2016	A1
20160201658	Heliix	Jul 2016	A1
20160208593	Coli	Jul 2016	A1
20160208594	Coli	Jul 2016	A1
20160248230	Tawy et al.	Aug 2016	A1
20160258267	Payne et al.	Sep 2016	A1
20160273328	Oehring	Sep 2016	A1
20160326854	Broussaed	Nov 2016	A1
20160326855	Coli	Nov 2016	A1
20160348479	Oehring et al.	Dec 2016	A1
20160369609	Morris	Dec 2016	A1
20170016433	Chong et al.	Jan 2017	A1
20170036178	Coli	Feb 2017	A1
20170037718	Coli	Feb 2017	A1
20170104389	Morris	Apr 2017	A1
20170129338	Cryer et al.	May 2017	A1
20170145918	Oehring et al.	May 2017	A1
20170218727	Oehring et al.	Aug 2017	A1
20170218843	Oehring et al.	Aug 2017	A1
20170222409	Oehring et al.	Aug 2017	A1
20170259227	Morris	Sep 2017	A1
20170284484	Bickmann, III et al.	Oct 2017	A1
20170302135	Cory	Oct 2017	A1
20170322086	Luharuka et al.	Nov 2017	A1
20180007173	Wang et al.	Jan 2018	A1
20180044307	Sathe et al.	Feb 2018	A1
20180075034	Wang et al.	Mar 2018	A1
20180080377	Austin et al.	Mar 2018	A1
20180156210	Oehring et al.	Jun 2018	A1
20180175639	Tasca et al.	Jun 2018	A1
20180202356	Godman	Jul 2018	A1
20180266637	Curlett et al.	Sep 2018	A1
20180291713	Jeanson	Oct 2018	A1
20180299878	Cella et al.	Oct 2018	A1
20180339278	Morris et al.	Nov 2018	A1
20180363434	Coli	Dec 2018	A1
20180363435	Coli	Dec 2018	A1
20180363436	Coli	Dec 2018	A1
20180363437	Coli	Dec 2018	A1
20180363438	Coli	Dec 2018	A1
20180374607	Hernandez Marti et al.	Dec 2018	A1
20190003272	Morris et al.	Jan 2019	A1
20190003329	Morris et al.	Jan 2019	A1
20190055827	Coli	Feb 2019	A1
20190063309	Davis	Feb 2019	A1
20190063341	Davis	Feb 2019	A1
20190068026	Davis	Feb 2019	A1
20190112908	Coli	Apr 2019	A1
20190120024	Oehring et al.	Apr 2019	A1
20190169971	Oehring et al.	Jun 2019	A1
20190203572	Morris et al.	Jul 2019	A1
20190204021	Morris et al.	Jul 2019	A1
20190211661	Reckels et al.	Jul 2019	A1
20190271218	Coli	Sep 2019	A1
20190277125	Coli	Sep 2019	A1
20190277126	Coli	Sep 2019	A1
20190277127	Coli	Sep 2019	A1
20190277128	Coli	Sep 2019	A1
20190353303	Morris et al.	Nov 2019	A1
20190356199	Morris et al.	Nov 2019	A1
20200040705	Morris et al.	Feb 2020	A1
20200040762	Boyce et al.	Feb 2020	A1
20200040878	Morris	Feb 2020	A1
20200076201	Amthor et al.	Mar 2020	A1
20200087997	Morris et al.	Mar 2020	A1
20200109616	Oehring et al.	Apr 2020	A1
20200109617	Oehring et al.	Apr 2020	A1
20200208274	Gorse et al.	Jul 2020	A1
20200208565	Morris	Jul 2020	A1
20200318463	Grande, III	Oct 2020	A1
20200318467	Coli	Oct 2020	A1
20200332784	Zhang et al.	Oct 2020	A1
20200340340	Oehring et al.	Oct 2020	A1
20200347710	Coli	Nov 2020	A1
20200347711	Coli	Nov 2020	A1
20200347725	Morris et al.	Nov 2020	A1
20200350790	Luft et al.	Nov 2020	A1
20200398947	Hulsey	Dec 2020	A1
20210025324	Morris et al.	Jan 2021	A1
20210025383	Bodishbaugh et al.	Jan 2021	A1
20210062631	Coli	Mar 2021	A1
20210102531	Bodishbaugh et al.	Apr 2021	A1
20210108489	Shampine	Apr 2021	A1
20210131409	Cui et al.	May 2021	A1
20210140295	Coli	May 2021	A1
20210215440	Morris	Jul 2021	A1
20210363869	Coli	Nov 2021	A1
20220018234	Reddy	Jan 2022	A1
20220056794	Coli	Feb 2022	A1
20220056795	Coli	Feb 2022	A1
20220090477	Zhang et al.	Mar 2022	A1
20220094174	Wei et al.	Mar 2022	A1
20220096965	Heffernan et al.	Mar 2022	A1
20220162933	El Tawy et al.	May 2022	A1
20220278531	Ough et al.	Sep 2022	A1
20220325706	Kotapish et al.	Oct 2022	A1
20220333536	Janik	Oct 2022	A1
20220333608	Wrighton et al.	Oct 2022	A1
20220341362	Feng et al.	Oct 2022	A1
20220349286	Bowdon et al.	Nov 2022	A1
20220356791	Coli	Nov 2022	A1
20220356792	Coli	Nov 2022	A1
20220373176	Al-Shaiji et al.	Nov 2022	A1
20220389844	Zemlak et al.	Dec 2022	A1
20230001424	Mitchell et al.	Jan 2023	A1
20230070098	Bodishbaugh et al.	Mar 2023	A1
20230083234	Cook et al.	Mar 2023	A1
20230094924	Travis	Mar 2023	A1
20230119896	Zhang et al.	Apr 2023	A1
20230146951	Robinson et al.	May 2023	A1
20230151722	Cui et al.	May 2023	A1
20230155358	Oehring	May 2023	A1
20230160289	Cui et al.	May 2023	A1
20230160373	Steele	May 2023	A1
20230160375	Kumar et al.	May 2023	A1
20230175376	Xie et al.	Jun 2023	A1
20230176557	Cella et al.	Jun 2023	A1
20230203928	Shao et al.	Jun 2023	A1
20230212932	Yeung et al.	Jul 2023	A1
20230228161	Morris et al.	Jul 2023	A1
20230253822	Bilgin et al.	Aug 2023	A1
20230272700	Hinderliter et al.	Aug 2023	A1
20230279762	Cui et al.	Sep 2023	A1
20230305179	Powell et al.	Sep 2023	A1
20230323786	Hinderliter et al.	Oct 2023	A1
20230327441	Weightman et al.	Oct 2023	A1
20230338908	Katz	Oct 2023	A1
20230340866	Aune et al.	Oct 2023	A1
20230349279	Zhang et al.	Nov 2023	A1

Foreign Referenced Citations (721)

Number	Date	Country
103159	Nov 2017	AR
103160	Nov 2017	AR
087298	Dec 2017	AR
092923	Dec 2017	AR
104823	Dec 2017	AR
104824	Dec 2017	AR
104825	Dec 2017	AR
104826	Dec 2017	AR
2012203086	Oct 2014	AU
2015364678	Mar 2019	AU
2017229475	May 2020	AU
2019200899	Sep 2020	AU
2020302974	Oct 2023	AU
PI0617234	Jul 2011	BR
2119905	Sep 1994	CA
2119906	Sep 1994	CA
2140471	Jul 1995	CA
2279320	Apr 2000	CA
2547970	Dec 2006	CA
2531202	Jan 2007	CA
2514658	Mar 2007	CA
2653069	Dec 2007	CA
2522428	Sep 2008	CA
2678638	Nov 2008	CA
2684598	Feb 2009	CA
2639418	Mar 2009	CA
2700385	Apr 2009	CA
2733683	Feb 2010	CA
2679812	Mar 2010	CA
2641059	Jul 2011	CA
2955706	Oct 2012	CA
2770811	Sep 2013	CA
2836596	Jun 2015	CA
2773843	Jan 2016	CA
2835904	Feb 2017	CA
102013020488	Dec 2017	CA
3206994	Mar 2018	CA
2845347	May 2018	CA
2900387	Sep 2018	CA
2970542	Sep 2018	CA
2917529	Aug 2019	CA
2970527	Aug 2019	CA
2962018	Jan 2021	CA
2964595	Jun 2021	CA
2961419	Oct 2021	CA
2964593	Nov 2021	CA
2949533	Jul 2022	CA
3156920	Oct 2022	CA
3164463	Dec 2022	CA
3095824	Jul 2023	CA
3179725	Jul 2023	CA
3187892	Jul 2023	CA
3080833	Aug 2023	CA
2308728	Feb 1999	CN
2327102	Jun 1999	CN
2375967	Apr 2000	CN
2474722	Jan 2002	CN
2660086	Dec 2004	CN
1916413	Feb 2007	CN
1978865	Jun 2007	CN
200964792	Oct 2007	CN
101126301	Feb 2008	CN
201038821	Mar 2008	CN
101178973	May 2008	CN
101178974	May 2008	CN
201130921	Oct 2008	CN
201187247	Jan 2009	CN
201193186	Feb 2009	CN
201222655	Apr 2009	CN
201298820	Aug 2009	CN
201354836	Dec 2009	CN
201388066	Jan 2010	CN
101645689	Feb 2010	CN
201396133	Feb 2010	CN
201408926	Feb 2010	CN
201408994	Feb 2010	CN
201461291	May 2010	CN
101290357	Jun 2010	CN
201504207	Jun 2010	CN
201549929	Aug 2010	CN
201584809	Sep 2010	CN
201708748	Jan 2011	CN
201717639	Jan 2011	CN
201781279	Mar 2011	CN
201781325	Mar 2011	CN
201813170	Apr 2011	CN
102094597	Jun 2011	CN
102171060	Aug 2011	CN
201956687	Aug 2011	CN
201956940	Aug 2011	CN
201971579	Sep 2011	CN
101355238	Dec 2011	CN
102299670	Dec 2011	CN
202090898	Dec 2011	CN
202125405	Jan 2012	CN
102340167	Feb 2012	CN
202142873	Feb 2012	CN
102421988	Apr 2012	CN
202285150	Jun 2012	CN
102602323	Jul 2012	CN
202326846	Jul 2012	CN
202333840	Jul 2012	CN
202385052	Aug 2012	CN
202395458	Aug 2012	CN
202463670	Oct 2012	CN
202488138	Oct 2012	CN
202488401	Oct 2012	CN
202497848	Oct 2012	CN
202586335	Dec 2012	CN
202611582	Dec 2012	CN
202634359	Dec 2012	CN
102882232	Jan 2013	CN
202663129	Jan 2013	CN
202737465	Feb 2013	CN
102969660	Mar 2013	CN
102996097	Mar 2013	CN
202817793	Mar 2013	CN
101951025	Apr 2013	CN
103016362	Apr 2013	CN
202883106	Apr 2013	CN
202888863	Apr 2013	CN
202904348	Apr 2013	CN
102296876	May 2013	CN
202916652	May 2013	CN
202918239	May 2013	CN
202997332	Jun 2013	CN
203097715	Jul 2013	CN
203130452	Aug 2013	CN
203172509	Sep 2013	CN
203261046	Oct 2013	CN
203278242	Nov 2013	CN
203289378	Nov 2013	CN
102280876	Dec 2013	CN
102423655	Dec 2013	CN
102354996	Jan 2014	CN
103510917	Jan 2014	CN
203399031	Jan 2014	CN
203465364	Mar 2014	CN
203491717	Mar 2014	CN
102602322	Apr 2014	CN
103713559	Apr 2014	CN
203589733	May 2014	CN
103886419	Jun 2014	CN
103887988	Jun 2014	CN
203626655	Jun 2014	CN
102255255	Jul 2014	CN
102516708	Jul 2014	CN
103023016	Aug 2014	CN
103107544	Aug 2014	CN
203761051	Aug 2014	CN
203769748	Aug 2014	CN
203771034	Aug 2014	CN
203786495	Aug 2014	CN
203795953	Aug 2014	CN
203800617	Aug 2014	CN
203850846	Sep 2014	CN
203867527	Oct 2014	CN
203871865	Oct 2014	CN
102751751	Nov 2014	CN
103107536	Nov 2014	CN
203948856	Nov 2014	CN
203950657	Nov 2014	CN
102545221	Dec 2014	CN
103178551	Dec 2014	CN
204060502	Dec 2014	CN
103107538	Jan 2015	CN
204089346	Jan 2015	CN
204144968	Feb 2015	CN
204151293	Feb 2015	CN
204179683	Feb 2015	CN
204216804	Mar 2015	CN
204230905	Mar 2015	CN
204230918	Mar 2015	CN
102955445	May 2015	CN
103595127	May 2015	CN
204316091	May 2015	CN
204416995	Jun 2015	CN
103089859	Jul 2015	CN
204488764	Jul 2015	CN
103323723	Aug 2015	CN
104836230	Aug 2015	CN
204552720	Aug 2015	CN
104362631	Sep 2015	CN
204630152	Sep 2015	CN
204646555	Sep 2015	CN
103107598	Oct 2015	CN
204692246	Oct 2015	CN
103136976	Dec 2015	CN
105186961	Dec 2015	CN
105201580	Dec 2015	CN
204851101	Dec 2015	CN
204900181	Dec 2015	CN
204905885	Dec 2015	CN
204928166	Dec 2015	CN
205025379	Feb 2016	CN
205025517	Feb 2016	CN
205047206	Feb 2016	CN
103089872	Mar 2016	CN
103594222	Mar 2016	CN
103872702	Mar 2016	CN
105363362	Mar 2016	CN
105422320	Mar 2016	CN
103023047	Apr 2016	CN
103061990	Apr 2016	CN
103633918	Apr 2016	CN
104079000	Apr 2016	CN
205135462	Apr 2016	CN
205154110	Apr 2016	CN
103527180	May 2016	CN
105552964	May 2016	CN
205204716	May 2016	CN
103485737	Jun 2016	CN
103729574	Jun 2016	CN
205304683	Jun 2016	CN
105756559	Jul 2016	CN
205377448	Jul 2016	CN
205383008	Jul 2016	CN
205401672	Jul 2016	CN
104060949	Aug 2016	CN
105840094	Aug 2016	CN
105840095	Aug 2016	CN
105840096	Aug 2016	CN
105840097	Aug 2016	CN
105897147	Aug 2016	CN
105914733	Aug 2016	CN
205477359	Aug 2016	CN
205489747	Aug 2016	CN
205527463	Aug 2016	CN
205544281	Aug 2016	CN
103632207	Sep 2016	CN
103944157	Sep 2016	CN
105952627	Sep 2016	CN
105974834	Sep 2016	CN
205654298	Oct 2016	CN
205663596	Oct 2016	CN
205669482	Nov 2016	CN
205713959	Nov 2016	CN
205713960	Nov 2016	CN
205713961	Nov 2016	CN
205713962	Nov 2016	CN
103326452	Dec 2016	CN
106208062	Dec 2016	CN
106223903	Dec 2016	CN
106253342	Dec 2016	CN
104242738	Jan 2017	CN
104319806	Jan 2017	CN
102562285	Feb 2017	CN
103901777	Feb 2017	CN
105375376	Mar 2017	CN
206117156	Apr 2017	CN
206135421	Apr 2017	CN
206135759	Apr 2017	CN
106786486	May 2017	CN
106786786	May 2017	CN
206211885	May 2017	CN
106837254	Jun 2017	CN
105523493	Jul 2017	CN
206329388	Jul 2017	CN
206332461	Jul 2017	CN
206400019	Aug 2017	CN
107208557	Sep 2017	CN
206506727	Sep 2017	CN
206513308	Sep 2017	CN
206554790	Oct 2017	CN
105480884	Nov 2017	CN
206611233	Nov 2017	CN
206673674	Nov 2017	CN
103714414	Jan 2018	CN
206831830	Jan 2018	CN
206942678	Jan 2018	CN
206942679	Jan 2018	CN
206942682	Jan 2018	CN
206942683	Jan 2018	CN
206942684	Jan 2018	CN
207053259	Feb 2018	CN
107749728	Mar 2018	CN
207162129	Mar 2018	CN
107968615	Apr 2018	CN
207194878	Apr 2018	CN
207229079	Apr 2018	CN
106522277	Jun 2018	CN
207442457	Jun 2018	CN
207519343	Jun 2018	CN
105134105	Jul 2018	CN
105305474	Jul 2018	CN
105937557	Jul 2018	CN
108350732	Jul 2018	CN
207638342	Jul 2018	CN
207652051	Jul 2018	CN
104281982	Aug 2018	CN
105759672	Aug 2018	CN
106195223	Aug 2018	CN
108365792	Aug 2018	CN
108442912	Aug 2018	CN
105525869	Sep 2018	CN
108695979	Oct 2018	CN
105417419	Nov 2018	CN
108900136	Nov 2018	CN
106099986	Jan 2019	CN
109138952	Jan 2019	CN
105119311	Feb 2019	CN
109324592	Feb 2019	CN
208521482	Feb 2019	CN
208548823	Feb 2019	CN
105337397	Mar 2019	CN
105811518	Mar 2019	CN
106765004	Mar 2019	CN
109412137	Mar 2019	CN
109522297	Mar 2019	CN
208633810	Mar 2019	CN
208638039	Mar 2019	CN
208669209	Mar 2019	CN
105201475	Apr 2019	CN
105736216	Apr 2019	CN
208723323	Apr 2019	CN
208796077	Apr 2019	CN
109711637	May 2019	CN
208862567	May 2019	CN
208922527	May 2019	CN
109873421	Jun 2019	CN
208937976	Jun 2019	CN
208939586	Jun 2019	CN
208996705	Jun 2019	CN
209011802	Jun 2019	CN
209016938	Jun 2019	CN
110043228	Jul 2019	CN
209119803	Jul 2019	CN
105098811	Aug 2019	CN
209212226	Aug 2019	CN
209233484	Aug 2019	CN
209293509	Aug 2019	CN
209339926	Sep 2019	CN
209358289	Sep 2019	CN
ZL201580074219.9	Sep 2019	CN
104201666	Oct 2019	CN
106685050	Oct 2019	CN
209488190	Oct 2019	CN
109581932	Nov 2019	CN
110460287	Nov 2019	CN
110462001	Nov 2019	CN
110469314	Nov 2019	CN
110513155	Nov 2019	CN
209576437	Nov 2019	CN
209687698	Nov 2019	CN
106545407	Dec 2019	CN
110608030	Dec 2019	CN
209881421	Dec 2019	CN
110645159	Jan 2020	CN
110676868	Jan 2020	CN
110700793	Jan 2020	CN
209929514	Jan 2020	CN
210049880	Feb 2020	CN
110863804	Mar 2020	CN
110926059	Mar 2020	CN
110932362	Mar 2020	CN
210139911	Mar 2020	CN
210225283	Mar 2020	CN
111030549	Apr 2020	CN
210289723	Apr 2020	CN
210289931	Apr 2020	CN
210289932	Apr 2020	CN
108933441	May 2020	CN
111211640	May 2020	CN
210518154	May 2020	CN
210598945	May 2020	CN
210608816	May 2020	CN
210664042	Jun 2020	CN
210685937	Jun 2020	CN
210714958	Jun 2020	CN
210829222	Jun 2020	CN
210888904	Jun 2020	CN
210888905	Jun 2020	CN
107681780	Jul 2020	CN
109057494	Jul 2020	CN
111401843	Jul 2020	CN
111446831	Jul 2020	CN
111463780	Jul 2020	CN
211089148	Jul 2020	CN
211113717	Jul 2020	CN
211127218	Jul 2020	CN
108599192	Sep 2020	CN
111649967	Sep 2020	CN
211397553	Sep 2020	CN
211530941	Sep 2020	CN
211549909	Sep 2020	CN
111773989	Oct 2020	CN
211720481	Oct 2020	CN
111917042	Nov 2020	CN
111997536	Nov 2020	CN
211974943	Nov 2020	CN
212033603	Nov 2020	CN
110011351	Dec 2020	CN
112183908	Jan 2021	CN
112267953	Jan 2021	CN
212348565	Jan 2021	CN
212376607	Jan 2021	CN
212380841	Jan 2021	CN
108879800	Feb 2021	CN
109149627	Feb 2021	CN
109802605	Feb 2021	CN
109859588	Feb 2021	CN
212583603	Feb 2021	CN
107947244	Mar 2021	CN
109861852	Mar 2021	CN
112564550	Mar 2021	CN
212671745	Mar 2021	CN
212803093	Mar 2021	CN
212837722	Mar 2021	CN
111425164	Apr 2021	CN
112600252	Apr 2021	CN
112736976	Apr 2021	CN
110344801	May 2021	CN
112366754	May 2021	CN
112769131	May 2021	CN
112864817	May 2021	CN
213185526	May 2021	CN
108716447	Jun 2021	CN
109347090	Jun 2021	CN
109754095	Jun 2021	CN
112963212	Jun 2021	CN
113037143	Jun 2021	CN
113037144	Jun 2021	CN
107730394	Jul 2021	CN
113098046	Jul 2021	CN
113131505	Jul 2021	CN
113153262	Jul 2021	CN
113178859	Jul 2021	CN
113178947	Jul 2021	CN
111744896	Aug 2021	CN
113296464	Aug 2021	CN
213861992	Aug 2021	CN
108988330	Sep 2021	CN
113417737	Sep 2021	CN
214170684	Sep 2021	CN
113550726	Oct 2021	CN
113573265	Oct 2021	CN
214478817	Oct 2021	CN
214480343	Oct 2021	CN
109301833	Nov 2021	CN
111157837	Nov 2021	CN
111181445	Nov 2021	CN
214674378	Nov 2021	CN
214741266	Nov 2021	CN
214899349	Nov 2021	CN
109734272	Dec 2021	CN
111324849	Dec 2021	CN
113765119	Dec 2021	CN
113809953	Dec 2021	CN
215256355	Dec 2021	CN
215259734	Dec 2021	CN
106774140	Jan 2022	CN
108717356	Jan 2022	CN
113883489	Jan 2022	CN
113949053	Jan 2022	CN
113991633	Jan 2022	CN
113991637	Jan 2022	CN
215419592	Jan 2022	CN
215681362	Jan 2022	CN
114006375	Feb 2022	CN
114016988	Feb 2022	CN
215815415	Feb 2022	CN
215830439	Feb 2022	CN
112983583	Mar 2022	CN
114172144	Mar 2022	CN
114233600	Mar 2022	CN
109299874	Apr 2022	CN
109802450	Apr 2022	CN
110415139	Apr 2022	CN
216342071	Apr 2022	CN
216381339	Apr 2022	CN
216381346	Apr 2022	CN
110826938	May 2022	CN
112968467	May 2022	CN
114447946	May 2022	CN
114465420	May 2022	CN
114508470	May 2022	CN
216553881	May 2022	CN
216564513	May 2022	CN
216599460	May 2022	CN
109787237	Jun 2022	CN
109873428	Jun 2022	CN
110725673	Jun 2022	CN
111963114	Jun 2022	CN
114576114	Jun 2022	CN
114593072	Jun 2022	CN
114598234	Jun 2022	CN
114658619	Jun 2022	CN
114035491	Jul 2022	CN
114768456	Jul 2022	CN
114665510	Aug 2022	CN
114665511	Aug 2022	CN
114962203	Aug 2022	CN
114970792	Aug 2022	CN
217282371	Aug 2022	CN
109752629	Sep 2022	CN
110061525	Sep 2022	CN
114759652	Sep 2022	CN
114776268	Sep 2022	CN
217508294	Sep 2022	CN
114336792	Oct 2022	CN
115182692	Oct 2022	CN
115207961	Oct 2022	CN
115236453	Oct 2022	CN
217602640	Oct 2022	CN
217643207	Oct 2022	CN
113131531	Nov 2022	CN
115320391	Nov 2022	CN
115387725	Nov 2022	CN
115411628	Nov 2022	CN
217740274	Nov 2022	CN
217813759	Nov 2022	CN
110188972	Dec 2022	CN
110610270	Dec 2022	CN
113328528	Dec 2022	CN
114513048	Dec 2022	CN
115441495	Dec 2022	CN
115450593	Dec 2022	CN
218141229	Dec 2022	CN
218177149	Dec 2022	CN
218276059	Jan 2023	CN
106894797	Feb 2023	CN
113073949	Feb 2023	CN
115694310	Feb 2023	CN
115697752	Feb 2023	CN
218440307	Feb 2023	CN
218470850	Feb 2023	CN
218549457	Feb 2023	CN
114439448	Mar 2023	CN
114439449	Mar 2023	CN
115796404	Mar 2023	CN
115823753	Mar 2023	CN
115833150	Mar 2023	CN
115877793	Mar 2023	CN
218586715	Mar 2023	CN
218624195	Mar 2023	CN
218633353	Mar 2023	CN
218733976	Mar 2023	CN
115545197	Apr 2023	CN
115579967	Apr 2023	CN
115680598	Apr 2023	CN
115899355	Apr 2023	CN
116011946	Apr 2023	CN
218888153	Apr 2023	CN
218940747	Apr 2023	CN
108019146	May 2023	CN
115855006	May 2023	CN
116128288	May 2023	CN
116131314	May 2023	CN
116154805	May 2023	CN
219018473	May 2023	CN
219045391	May 2023	CN
108225696	Jun 2023	CN
112615387	Jun 2023	CN
112865180	Jun 2023	CN
114016986	Jun 2023	CN
116225213	Jun 2023	CN
116321877	Jun 2023	CN
219247485	Jun 2023	CN
219247733	Jun 2023	CN
106972610	Jul 2023	CN
111340337	Jul 2023	CN
114046172	Jul 2023	CN
116404679	Jul 2023	CN
116436157	Jul 2023	CN
219299292	Jul 2023	CN
112653119	Aug 2023	CN
113922360	Aug 2023	CN
114974860	Aug 2023	CN
116581881	Aug 2023	CN
116581893	Aug 2023	CN
116632877	Aug 2023	CN
116505300	Sep 2023	CN
116816321	Sep 2023	CN
219754663	Sep 2023	CN
219760651	Sep 2023	CN
109213052	Oct 2023	CN
109521309	Oct 2023	CN
116885783	Oct 2023	CN
116911076	Oct 2023	CN
116950609	Oct 2023	CN
116961081	Oct 2023	CN
116979578	Oct 2023	CN
19707654	Aug 1998	DE
102009024357	Dec 2010	DE
202011102292	Feb 2012	DE
102012224429	Jul 2014	DE
102017215981	Mar 2019	DE
033338	Sep 2019	EA
1574714	Sep 2005	EP
2469065	Nov 2014	EP
2904200	Aug 2015	EP
2388432	Jan 2016	EP
2958219	Jun 2017	EP
3025019	Feb 2018	EP
3444431	Feb 2019	EP
3447239	Feb 2019	EP
2726705	Mar 2019	EP
3141595	Mar 2019	EP
3444430	Mar 2019	EP
3444432	Mar 2019	EP
3453827	Mar 2019	EP
3456915	Mar 2019	EP
3234321	Feb 2020	EP
2566614	Apr 2020	EP
3719281	Oct 2020	EP
3426888	Apr 2021	EP
3407453	Feb 2022	EP
3985481	Apr 2022	EP
976279	Nov 1964	GB
2351125	Dec 2000	GB
2404253	Jan 2005	GB
2461032	Dec 2009	GB
2474021	Mar 2016	GB
2565953	Feb 2019	GB
2507173	Aug 2019	GB
215967	Mar 2008	IN
202017008971	Aug 2020	IN
354508	Jan 2021	IN
2015078677	Apr 2015	JP
6415748	Oct 2018	JP
2021516732	Jul 2021	JP
20150137725	Dec 2015	KR
10-1948225	Feb 2019	KR
10-1981198	May 2019	KR
20220057193	May 2022	KR
20220057194	May 2022	KR
358054	Aug 2018	MX
2672688	Nov 2018	RU
2743421	Feb 2021	RU
2762713	Dec 2021	RU
2784121	Nov 2022	RU
163511	Jun 2017	TH
8103143	Nov 1981	WO
2001094786	Dec 2001	WO
2005062458	Jul 2005	WO
2005090152	Sep 2005	WO
2007011812	Jan 2007	WO
2007096660	Aug 2007	WO
2007098606	Sep 2007	WO
2007141715	Dec 2007	WO
2008117048	Oct 2008	WO
2009070876	Jun 2009	WO
2010126395	Dec 2010	WO
2010141232	Dec 2010	WO
2011070244	Jun 2011	WO
2012054392	Jun 2012	WO
2012137068	Oct 2012	WO
2012154971	Apr 2013	WO
2013062754	May 2013	WO
2013106593	Jul 2013	WO
2012165954	Sep 2013	WO
2013170375	Nov 2013	WO
2014053056	Apr 2014	WO
2014070568	May 2014	WO
2014102127	Jul 2014	WO
2014044334	Sep 2014	WO
2015012967	Jan 2015	WO
2015109551	Jul 2015	WO
2015160374	Oct 2015	WO
2016010511	Jan 2016	WO
2016032469	Mar 2016	WO
2016032511	Mar 2016	WO
2016115497	Jul 2016	WO
2017023320	Feb 2017	WO
2018044307	Mar 2018	WO
2018071738	Apr 2018	WO
2018075034	Apr 2018	WO
2018192632	Oct 2018	WO
2018194896	Oct 2018	WO
2018204293	Nov 2018	WO
2019015002	Jan 2019	WO
2019046542	Mar 2019	WO
2019062782	Apr 2019	WO
2019071088	Apr 2019	WO
2019088899	May 2019	WO
2019152981	Aug 2019	WO
2019204323	Oct 2019	WO
2020037107	Feb 2020	WO
2020057423	Mar 2020	WO
2020104088	May 2020	WO
2020211086	Oct 2020	WO
2020258002	Dec 2020	WO
2020258003	Dec 2020	WO
2020258005	Dec 2020	WO
2021003178	Jan 2021	WO
2021021664	Feb 2021	WO
2021056174	Apr 2021	WO
2021067410	Apr 2021	WO
2021081797	May 2021	WO
2021092023	May 2021	WO
2021092027	May 2021	WO
2021101754	May 2021	WO
2021138289	Jul 2021	WO
2021138457	Jul 2021	WO
2021138462	Jul 2021	WO
2021146837	Jul 2021	WO
2021151443	Aug 2021	WO
2021173924	Sep 2021	WO
2022010985	Jan 2022	WO
2022011267	Mar 2022	WO
2022076001	Apr 2022	WO
2022104330	May 2022	WO
2022151481	Jul 2022	WO
2022169384	Aug 2022	WO
2022192516	Sep 2022	WO
2022213130	Oct 2022	WO
2022271667	Dec 2022	WO
2022272246	Dec 2022	WO
2022251160	Jan 2023	WO
2023039199	Mar 2023	WO
2023049674	Mar 2023	WO
2023060704	Apr 2023	WO
2023076616	May 2023	WO
2023087528	May 2023	WO
2023091057	May 2023	WO
2023136856	Jul 2023	WO
2023147670	Aug 2023	WO
2023155065	Aug 2023	WO
2023156677	Aug 2023	WO
2023150350	Sep 2023	WO
2023205756	Oct 2023	WO

Non-Patent Literature Citations (173)

Entry
Notice of Related Applications; filed in connection to U.S. Appl. No. 16/423,091; dated Jun. 17, 2019; 8 pages; US.
The International Bureau of WIPO; PCT International Preliminary Report on Patentability, issued in connection to PCT/CA2013/000845; dated Apr. 7, 2015; 8 pages; Canada.
PCT Search Report and Written Opinion filed in PCT counterpart Application No. PCT/IB2012/000832 dated Sep. 13, 2012, 12 pages.
European Patent Office; Extended European Search Report, issued in conneciton to EP18189396.7; dated May 13, 2019; 10 pages; Europe.
PCT Search Report and Written Opinion filed in PCT counterpart Application No. PCT/CA2013/000845 dated Jan. 3, 2014, 12 pages.
PCT Search Report and Written Opinion filed in PCT Application No. PCT/CA2013/000845 dated Jan. 8, 2014, 12 pages.
PCT Search Report and Written Opinion filed in PCT Application No. PCT/US15/66133 dated Mar. 2, 2016, 10 pages.
PCT Search Report and Written Opinion filed in PCT Application No. PCT/US15/66114 dated May 25, 2016, 8 pages.
PCT Search Report and Written Opinion filed in PCT Application No. PCT/US16/49777 dated Nov. 21, 2016, 10 pages.
PCT Search Report and Written Opinion filed in PCT Application No. PCT/US17/21181 dated May 25, 2017, 10 pages.
Int'l Search Report filed in copending PCT Application No. PCT/US2018/039982 dated Sep. 11, 2018, 8 pages.
Int'l Search Report filed in copending PCT Application No. PCT/US2018/039976 dated Nov. 5, 2018, 12 pages.
Int'l Search Report and Written Opinion issued copending PCT Application No. PCT/US2018/068103 dated May 7, 2019, 11 pages.
Int'l Search Report & Written Opinion received in copending PCT Application No. PCT/US19/32645, dated Jul. 15, 2019, 10 pages.
Int'l Search Report received in copending PCT Application No. PCT/US2019/043982 dated Oct. 9, 2019, 8 pages.
Int'l Search Report received in copending PCT Application No. PCT/US2019/043303 dated Nov. 12, 2019, 13 pages.
PCT/US2019/66907 Int'l Search Report and the Written Opinion of the International Authority dated Mar. 25, 2020, 12 pages.
Int'l Search Report and Written Opinion of PCT Application No. PCT/US2020/030306 dated Jul. 28, 2020, 14 pages.
Int'l Search Report dated Oct. 8, 2020, issued in the prosecution of patent application PCT/US20/43583, 19 pages.
Int'l Search Report and Written Opinion of PCT Application No. PCT/US2020/055592; dated Jan. 21, 2021: pp. 1-15.
Argentinian Patent Office; Office Action, issued in connection with P180100416; dated Nov. 4, 2019; 5 pages; Argentina.
National Institute of the Industrial Property of Argentina, Second Office Action, issued in connection to application No. 20160102674; dated Feb. 2, 2021; 4 pages; Argentina.
Industrial Property Review of Brazil, Office Action, issued in connection with application No. BR112015007587-8; dated Feb. 18, 2020; 5 pages; Brazil.
Foreign Communication from a related counterpart application; Canadian Application No. 2,835,904; Canadian Office Action; dated Jan. 19, 2015; 4 pages; Canada.
Foreign Communication From a Related Counterpart Application, Canadian Application No. 2,835,904 Canadian Office Action dated Jan. 19, 2015, 4 pages. (133466.022700).
Foreign Communication From a Related Counterpart Application, Canadian Application No. 2,845,347 Canadian Office Action dated Mar. 19, 2015, 4 pages. (133466.023200).
Canadian Intellectual Property Office; Examination Report, issued for CA2829422; dated Feb. 26, 2019; 5 pages; Canada.
Canadian Intellectual Property Office; Examination Search Report, issued for CA2829422; dated Feb. 26, 2019; 1 page; Canada.
Canadian Intellectual Property Office; Examination Report, issued for CA2955706; dated Dec. 18, 2018; 3 pages; Canada.
Canadian Intellectual Property Office; Examination Search Report, issued for CA2955706; dated Dec. 18, 2018; 1 page; Canada.
Canadian Intellectual Property Office; Examination Report, issued for CA2966672; dated Dec. 18, 2018; 3 pages; Canada.
Canadian Intellectual Property Office; Examination Search Report, issued for CA2966672; dated Dec. 18, 2018; 1 page; Canada.
Canadian Intellectual Property Office; Examination Report, issued for CA2900387; dated Apr. 25, 2017; 4 pages; Canada.
Canadian Intellectual Property Office; Examination Search Report, issued for CA2900387; dated Apr. 17, 2017; 1 page; Canada.
Canadian Intellectual Property Office; Examiner's Report, issued in connection to CA2955706; dated Jul. 12, 2019; 3 pages; Canada.
Canadian Intellectual Property Office; Examiner's Report, issued in connection to CA2955706; dated Mar. 4, 2020; 3 pages; Canada.
Canadian Intellectual Property Office; Examiner Report, issued in connection to application No. 3060766; dated Jan. 6, 2021; 4 pages; Canada.
Canadian Intellectual Property Office; Examiner Report, issued in connection to application No. 3087558; dated Aug. 31, 2020; 4 pages; Canada.
European Patent Office, Supplemental Search Report dated Mar. 10, 2016 for Application No. EP12767292.1, 8 pages.
European Patent Office; Extended European Search Report, issued for EP13843467.5; dated Nov. 28, 2016; 8 pages; Europe.
European Patent Office; Extended European Search Report, issued for EP12767292.1; dated Mar. 10, 2016; 8 pages; Europe.
European Patent Office; Extended European Search Report, issued for EP18188786.0; dated Feb. 14, 2019; 7 pages; Europe.
European Patent Office; Extended European Search Report, issued for EP18189394.2; dated Nov. 19, 2018; 7 pages; Europe.
European Patent Office; Extended European Search Report, issued for EP18189396.7; dated Feb. 8, 2019; 11 pages; Europe.
European Patent Office; Extended European Search Report, issued for EP18189400.7; dated Nov. 19, 2018; 7 pages; Europe.
European Patent Office; Extended European Search Report, issued for EP18189402.3; dated Jan. 7, 2019; 7 pages; Europe.
European Patent Office; Extended European Search Report, issued for EP18194529.6; dated Dec. 19, 2018; 7 pages; Europe.
EPO Search Report filed in EP counterpart Application No. 15870991.5 dated Oct. 15, 2018, 13 pages.
European Patent Office; Communication pursuant to Article 94(3) EPC, issued in connection to EP13843467.5; dated Jun. 14, 2018; 7 pages; Europe.
TB Wood's Altra Industrial Motion; Flexible Couplings; May 2021; 104 pages.
Wadman, Bruce W.; 2000 HP Gas Turbine Fracturing Rig; Diesel and Gas Turbine Process; XP008074468; Aug. 1966; pp. 36-37.
Grynning, Audun et al.; Tyrihans Raw Seawater Injection; Offshore Technology conference; 2009; 18 pages.
Overli, Jan M. et al.; A Survey of Platform Machinery in the North Sea; The American Society of Mechanical Engineers; 1992; 10 pages.
Frei, Arno et al.; Design of Pump Shaft Trains Having Variable-Speed Electric Motors; Proceedings of the Third International Pump Symposium; pp. 33-44; 1986.
TB Wood's Dura-Flex Couplings for Mobile Hydraulic Fracturing Pump System; May 20, 2013; 5 pages; https://www.tbwoods.com/newsroom/2013/05/Dura-Flex-Couplings-for-Mobile-Hydraulic-Fracturing-Pump-System.
Eng Tips; Finding Motor with Two Shaft Ends and Two Flanges; Oct. 20, 2012; 2 pages; https://www.eng-tips.com/viewthread.cfm?qid=332087.
European Patent Office; Summons to attend oral proceedings pursuant to Rule 115(1) EPC, issued in connection to application No. 13843467.5; dated Jul. 13, 2021, 13 pages; Europe.
Argentinian Patent Office; Office Action, issued in connection with P180100424; dated Dec. 21, 2021; 5 pages; Argentina.
European Patent Office; Communication Pursuant to Article 94(3) EPC; dated Oct. 7, 2021; 4 pages; Europe.
Brazilian Patent Office; Office Action, issued in connection to application No. BR112013025880-2; dated Nov. 18, 2021; 6 pages; Brazil.
Schlumberger; JET Manual 23: Fracturing Pump Units, SPF/SPS-343; Version 1.0; Jan. 31, 2007; 68 pages.
Mexican Institute of Industrial Property; Office Action, issued in connection to application No. MX/a/2018/000776; dated Feb. 16, 2022; 4 pages; Mexico.
Mexican Institute of Industrial Property; Office Action, issued in connection to application No. MX/a/2018/009488; dated Jun. 23, 2022; 4 pages; Mexico.
Ministry of Economy, National Insitute of Industrial Propert; Office Action, issued in connection to application No. BR122020025435-1; dated Apr. 28, 2022; Brazil.
Ministry of Economy, National Insitute of Industrial Propert; Office Action, issued in connection to application No. BR122020025423-8; dated Apr. 28, 2022; 17 pages; Brazil.
Ministry of Economy, National Insitute of Industrial Propert; Office Action, issued in connection to application No. BR122020025434-3; dated Apr. 28, 2022; 16 pages; Brazil.
Ministry of Economy, National Insitute of Industrial Propert; Office Action, issued in connection to application No. BR122020025416-5; dated Apr. 28, 2022; 17 pages; Brazil.
Ministry of Economy, National Insitute of Industrial Propert; Office Action, issued in connection to application No. BR122020025438-6; dated Apr. 28, 2022; 21 pages; Brazil.
Ministry of Economy, National Insitute of Industrial Propert; Office Action, issued in connection to application No. BR122020025438-6; dated Apr. 28, 2022; 17 pages; Brazil.
Ministry of Economy, National Insitute of Industrial Propert; Office Action, issued in connection to application No. BR122020025428-9; dated Apr. 28, 2022; 17 pages; Brazil.
Ministry of Economy, National Insitute of Industrial Propert; Office Action, issued in connection to application No. BR122020025428-9; dated Aug. 31, 2022; 13 pages; Brazil.
Ministry of Economy, National Insitute of Industrial Propert; Office Action, issued in connection to application No. BR122020025420-3; dated Apr. 27, 2022; 15 pages; Brazil.
Ministry of Economy, National Insitute of Industrial Propert; Office Action, issued in connection to application No. BR122020025420-3; dated Aug. 31, 2022; 13 pages; Brazil.
Ministry of Economy, National Insitute of Industrial Propert; Office Action, issued in connection to application No. BR122020025441-6; dated Apr. 29, 2022; 15 pages; Brazil.
Ministry of Economy, National Insitute of Industrial Propert; Office Action, issued in connection to application No. BR122020025441-6; dated Sep. 30, 2022; 13 pages; Brazil.
European Patent Office; Brief Communication, issued in connection to application No. 13843467.5; dated Feb. 10, 2022, 11 pages; Europe.
European Patent Office; Decision to Refuse a European Patent Application, issued in connection to application No. 13843467.5; dated Mar. 31, 2022, 21 pages; Europe.
Ministry of Economy, National Insitute of Industrial Propert; Office Action, issued in connection to application No. BR122020025337-1; dated Mar. 9, 2022; 6 pages; Brazil.
Ministry of Economy, National Insitute of Industrial Propert; Office Action, issued in connection to application No. BR122020025337-1; dated Jul. 11, 2022; 6 pages; Brazil.
Ministry of Economy, National Insitute of Industrial Propert; Office Action, issued in connection to application No. BR122020025361-4; dated Mar. 9, 2022; 6 pages; Brazil.
Ministry of Economy, National Insitute of Industrial Propert; Office Action, issued in connection to application No. BR122020025361-4; dated Jul. 11, 2022; 6 pages; Brazil.
Ministry of Economy, National Insitute of Industrial Propert; Office Action, issued in connection to application No. BR122020025350-9; dated Mar. 9, 2022; 6 pages; Brazil.
Ministry of Economy, National Insitute of Industrial Propert; Office Action, issued in connection to application No. BR122020025342-8; dated Mar. 9, 2022; 6 pages; Brazil.
Ministry of Economy, National Insitute of Industrial Propert; Office Action, issued in connection to application No. BR122020025357-6; dated Mar. 9, 2022; 6 pages; Brazil.
Ministry of Economy, National Insitute of Industrial Propert; Office Action, issued in connection to application No. BR122020025369-0; dated Jul. 11, 2022; 6 pages; Brazil.
Ministry of Economy, National Insitute of Industrial Propert; Office Action, issued in connection to application No. BR122020025369-0; dated Mar. 9, 2022; 6 pages; Brazil.
Ministry of Economy, National Insitute of Industrial Propert; Office Action, issued in connection to application No. BR122020025374-6; dated Mar. 9, 2022; 6 pages; Brazil.
European Patent Office; Communication Pursuant to Article 94(3) EPC; dated Jun. 2, 2022; 3 pages; Europe.
European Patent Office; Communication Pursuant to Article 94(3) EPC; dated Jul. 21, 2022; 4 pages; Europe.
Canadian Intellectual Property Office; Examiner's Report, issued in connection with application No. 3112566; dated May 24, 2022; 9 pages; Canada.
European Patent Office; Communication pursuant to Article 94(3) EPC, issued in connection to EP18189396.7; dated Apr. 9, 2020; 3 pages; Europe.
European Patent Office; Communication Pursuant to Article 94(3) EPC, issued in connection to application No. EP18189402.3; dated Jul. 31, 2020; 4 pages; Europe.
European Patent Office; Communication Pursuant to Article 94(3) EPC, issued in connection to application No. 18189396.7; dated Dec. 11, 2020; 4 pages; Europe.
European Patent Office; Communication Pursuant to Article 94(3) EPC, issued in connection to application No. 18194529.6; dated Nov. 17, 2020; 4 pages; Europe.
European Patent Office; Communicaiton Pursuant to Article 94(3) EPC, issued in connection to application No. 18189402.3; dated Feb. 24, 2021; 5 pages; Europe.
European Patent Office; Communicaiton Pursuant to Article 94(3) EPC, issued in connection to application No. 18189400.7; dated Apr. 8, 2021; 4 pages; Europe.
European Patent Office; Communication Pursuant to Article 94(3) EPC, issued in connection to application No. EP18189400.7; dated Jul. 27, 2020; 4 pages; Europe.
EPO Search Report received in copending EP Application No. 17763916 dated Oct. 16, 2019, 8 pages.
Extended Search Report for European application No. 20156440.8 dated Sep. 3, 2020, 7 pages.
Mexican Patent Office; Official Action, issued in connection to MX/a2018/000772; 1 page; Mexico.
Mexican Patent Office; Office Action, issued in connection to application No. MX/a/2018/000772; dated Jul. 20, 2020; 7 pages; Mexico.
Mexican Patent Office; Office Action, issued in connection to application No. MX/a/2019/001247; dated Jan. 12, 2021; 4 pages; Mexico.
Mexican Patent Office; Office Action, issued in connection to application No. MX/a/2018/000772; dated Mar. 18, 2021; 6 pages; Mexico.
Gardner Denver, Inc., Outline-Bare Unit, Nov. 2011, 1 page, Tulsa, OK USA.
C-2500 Quintuplex Intermittent Duty Performance Ratings Displacement at Pump RPM—Well Stimulation and Intermittent Application; Bulleting: WS: 08-02-0801: www.gardenerdenver.com; 2 pages; retrievd from: http://gardenerdenverpumps.com/wp-content/uploads/2018/01/1050-c-2500-quintuplex-well-service-pump.pdf on Dec. 7, 2018.
Podsada, Janice. The Hartford Courant. “Pratt & Whitney Celebrates Completion of 50th FT8 MobilePac Power Generator.” Jul. 18, 2011.
Powerpoint presentation: TM2500 & TM2500+ Mobile Gas Turbine Generator; retrieved Oct. 9, 2014 from www.scawa.com/files/SCA_TM2500.pdf.
Toshiba G9/H9 Adjustable Speed Drive Engineering Specification: ASD Applications and Marketing. Feb. 13, 2008.
Gardner Denver, Inc., GD-2500 Quintuplex Well Service Pump, 2003, 2 pages, USA.
Gardner Denver, Inc., Well Servicing Pump, Model GD-25000 Quintuplex, Power End Parts List, 300FWF997 Rev G, Apr. 2007, 15 pages, Tulsa, OK USA.
Gardner Denver Inc., Well Servicing Pump, Model GD-25000, GDO-25000-HD, Quintuplex Pumps; GWS Fluid End Parts List, 302FWF997 Rev H, Jul. 2008, 39 pages, Tulsa, OK USA.
Gardner Denver, Inc., Well Servicing Pump, Model GD-25000 Quintuplex, Operating and Service Manual, 300FWF996 Revision F, Apr. 2011, 50 pages, Tulsa, OK USA.
Gardner Denver, Inc., Well Servicing Pump, Model GD-25000, GD-25000-HD, Quintuplex Pumps, Standard Fluid End Parts List, 301 FWF997 REV J, Jul. 2011, 40 pages, Tulsa, OK USA.
“The Application of Flexible Couplings for Turbomachinery”, Robert E. Munyon, John R. Mancuso and C.B. Gibbons, Proceedings of the 18th Turbomachinery Symposium, Texas A&M University, College Station, Texas 1989, pp. 1-11.
Frac Water Heater, www.alliedoilfield.com, Oct. 18, 2017, 3 pages.
Frac Tank Heating, McAdaFluidsHeatingServices, mcadafluidsheating.comffrac-tank-heating, Oct. 18, 2017, 2 pages.
Firestream Water Heaters for Fracking, www.heatec.com, Oct. 18, 2017, 4 pages.
Kraken Tri-Fuel Superheater Technology, Aggreko, Oct. 18, 2017, 2 pages.
Schlumberger Oilfield Glossary entry for “triplex pump”, accessed Apr. 9, 2021 via www.glossary.oilfield.com; 1 page.
National Oilwell Varco; Reciprocating Plunger Pumps: Installation, Care and Operation Manual; Revised Sep. 2, 2010; 30 pages.
MC Technologies; Operation and Maintenance Manual, Pump Assembly Operating Manual, Well Service Pump, Doc. No. OMM50003255, May 26, 2015, 98 pages.
National Oilwell Varco; Installation, Care and Operation Manual; 29 pages; www.nov.com.
Argentinian Patent Office; Office Action, issued in connection with P180100424; dated Jun. 16, 2021; 4 pages; Argentina.
Canadian Intellectual Property Office; Examiner's Report, issued in connection to application No. 3081005; dated Jun. 7, 2021; 3 pages; Canada.
Canadian Intellectual Property Office; Examiner's Report, issued in connection to application No. 3081010; dated Jun. 8, 2021; 3 pages; Canada.
Canadian Intellectual Property Office; Examiner's Report, issued in connection to application No. 3080744; dated Jun. 7, 2021; 4 pages; Canada.
European Patent Office; Extended European Search Report, issued in connection to application No. 21150745.4; dated May 20, 2020; 7 pages; Europe.
Brazilian Patent Office; Office Action, issued in connection to application No. BR112013025880-2; dated May 19, 2021; 6 pages; Brazil.
European Patent Office; Communication Pursuant to Article 94(3) EPC, issued in connection to EP18188786.0; dated Jul. 22, 2021; 3 pages; Europe.
European Patent Office; Communication pursuant to Article 94(3) EPC, issued in connection to EP18194529.6; dated Jul. 23, 2021; 3 pages; Europe.
Brooksbank, David; Coupling Types for Different Applications; Altra Industrial Motion; Dec. 17, 2011;6 pages.
Altra Industrial Motion; Altra Couplings offers the largest selection of Industrial couplings available from a single souce . . . worldwide; May 23, 2013; 1 page.
Sulzer Pumps Finland Oy; MPP High Performance Multi-Phase Pump; Jun. 2004; 12 pages.
Moore, Jesse C.; Electric Motors for Centrifugal Compressor Drives; General Electric Co.; Dec. 31, 1973; pp. 74-83.
Grimstad, Haakon J. et al.; Subsea Multiphase Boosting—Maturing Technology Applied for Santos Ltd's Mutineer and Exeter Field; SPE88562; Oct. 18, 2004; 10 pages.
Pettigrew, Dana et al.; Use of Untreated Subsurface Non-Potable Water for Frac Operations; SPE162102; Oct. 30, 2012; 13 pages.
Wang, Renguang et al.; One Electric Motor System for Steering Hydraulic Pump and Braking Air Pump in HEV BuS; Mar. 15, 2012; Trans Tech Publications Ltd.; vols. 490-495; pp. 910-913.
Dean, Alan; Taming Vibration Demonds with Flexible Couplings; Jun. 2005; World Pumps; pp. 44-47.
Mancuso, Jon; And You Thought All Felxible Pumps Couplings Were the Same; Apr. 2004; World Pumps; pp. 25-29.
Johnson, C.M. et al.; An Introduction to Flexible Couplings; Dec. 1996; World Pumps; pp. 38-43.
N. Thilak Raj et al.; A review of renewable energy based cogeneration technologies; Elsevier; Aug. 4, 2011; pp. 3640-3648.
Vuk Rajovic et l.; Environmental flows and life cycle assessment of associated petroleum gas utilization via combined heat and power plants and heat boilers at oil fields; Elsevier; Apr. 1, 2016; pp. 96-104.
P.F. Lionetto et al.; Cogeneration power plants by gas turbines in industrial installations: connection to the internal electrical system, interface with external grid, protection schemes; IEEE Xplore; Aug. 6, 2002.
JJ Dai et al.; Standard Approach to Perform Power System Stability Studies in Oil and Gas Plants; PCIC Europe; 13 pages.
Hassan Al Bekhit et al.; Switching from Local CGTGs to Grid Power for Offshore Oil Field via 100km, 115kV, 90MW Submarine Cable: Study Case; IEEE Xplore; Jan. 20, 2022.
Fang, Min; Research on wind and grid power intelligent complementary system in oilfield; IEEE Xplore; Dec. 23, 2010.
Yu, Qingguang et al.; Optimization of an Offshore Oilfield Multi-Platform Interconnected Power System Structure; IEEE Xplore; Jan. 4, 2021.
Prevedel, Bernhard et al.; Geothermal Drilling Experience with an Innovative Drill Rig; Proceedings World Geothermal Congress 2010; Apr. 25, 2010; pp. 4.; Indonesia.
Nenninger, Heather R. et al.; Effects of conventional oil wells on grassland songbird abundance are caused by presence of infrastructure, not noise; Elsevier; Dec. 28, 2017; pp. 124-133.
Stamford, Laurence et al.; Life cycle environmental impacts of UK shale gas; Elsevier; Sep. 6, 2014; pp. 506-518.
Antze, Bridget et al.; Noisy anthropogenic infrastructure interferes with alarm responses in Savannah sparrows (Passerculus sandwichensis); The Royal Society Publishing; May 16, 2018; 13 pages.
Wang, Yansong et al.; Nonlinear Power Flow Calculation of Offshore Oilfield Power Grid Based on Improved PSO Algorithm; IEEE Xplore; Oct. 24, 2019.
Yan, Fengyuan et al.; Scenario-Based Comparative Analysis for Coupling Electricity and Hydrogen Storage in Clean Oilfield Energy Supply System; Energies; Mar. 8, 2022; 28 pages.
Kong, Xiangwei et al.; Research and application of large-scale non-grid-connected wind power coupled with high-energy consumption system; IEEE Xplore; Dec. 23, 2010.
Sridhar, Yadavalli Venkata; Case study of grid connected PV plant feeding power to electrical submersible pumps; IEEE Xplore; Mar. 6, 2017.
Yan, Fengyuan et al.; Techno-economic assessment of clean oil field energy supply system; Sep. 28, 2021; 24 pages.
Zhang, Zhi-Hua et al.; Optimal operation regulation strategy of multi-energy complementary system considering source load storage dynamic characteristics in oilfield well sites; Elsevier; Sep. 12, 2023; 11 pages.
Cavraro, Guido; Modeling, Control and Identification of a Smart Grid; University of Padova; Jan. 31, 2015; 155 pages.
Novotnik, Breda et al.; Can fossil fuel energy be recovered and used without any CO2 emissions to the atmosphere?; Feb. 21, 2020; pp. 217-240.
Lourenco, Luis F.N. et al.; Assessment of an Isolated Offshore Power Grid Based on the Power Hub Concept for Pre-Salt Oil and Gas Production; Aug. 18, 2022; pp. 87671-87680.
Martinez De Alegria, Inigo et al.; Transmission alternatives for offshore electrical power; Elsevier; Apr. 22, 2008; pp. 1027-1038.
Wang, Tianshi et al.; New Method of Reactive Power Compensation for Oilfield Distribution Network; IEEE Xplore; Dec. 30, 2018.
Grassian, David et al.; Practical Applications of Net Energy Analysis of Upstream Oil and Gas Processes; The American Society of Mechanical Engineers; Oct. 14, 2020.
Lapuerta M. et al.; Sustainability Study of Biodiesel from Acrocomia tatai; Global Nestjournal; May 28, 2014; 11 pages.
Tong, Li et al.; Distributed coordinated control of hybrid energy storage in offshore oil field microgrid in short time scale; IOP Publishing; Jul. 15, 1905; 6 pages.
Elgqvist, Emma et al.; Integration of Clean Energy into Oil Field Operations; Jan. 1, 2022; 12 pages.
Li, Lei et al.; Application of High-power Frequency Conversion Technology in the Fracturing Pumping Equipment; IEEE Explore; Jul. 16, 2020.
Berger, Eric et al.; Geothermal Energy Storage (Geo-TES) Using Traditional Oil Reservoirs; OnePetro; Aug. 15, 2023.
Kikuchi, Tasunori et al.; Distributed Cogeneration of Power and Heat within an Energy Management Strategy for Mitigating Fossil Fuel Consumption; Journal of Industrial Ecology; Jan. 7, 2015; pp. 289-303.
Pellegrino, V.L. et al.; Oilfield Power: Technology and Cost Control; OnePetro; Apr. 1, 1989.
Leusheva, E.L. et al.; Development of combined heat and power system with binary cycle for oil and gas enterprises power supply (Russian); One Petro; Jul. 1, 2017.
Li, Tailu et al.; A novel geothermal system combined power generation, gathering heat tracing, heating/domestic hot water and oil recovery in an oilfield; Elsevier; Jul. 2014; pp. 388-396.
Morenov, V. et al.; Energy Delivery at Oil and Gas Wells Construction in Regions with Harsh Climate; International Journal of Engineering; Feb. 2016; pp. 274-279.

Provisional Applications (1)

	Number	Date	Country
	63421245	Nov 2022	US

System and method for fracturing of underground formations using electric grid power

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CPC

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