Patent Application
20210254456
Current systems used in well perforation require a manual control and deployment of wellbore tools. Current wellbore tools are physically connected to a control system via a cable. Most of the tools are assembled on site and conveyed into a wellbore. For example, each wellbore tool is manually placed into the well and manually controlled.
The introduction of a drone which contains such wellbore tools or functions thereof changes this picture significantly. However, it is not easy to provide a real time control over drones deployed into a wellbore to direct or track what the drone is doing within the wellbore. Thus, control systems for controlling, deploying, directing, testing, and tracking all drones or tools within the wellbore have been developed, however many of existing systems are designed based on tethered (wired) control mechanisms, and thus limiting mobility or accessibility of drones within the wellbore.
Thus, there is a need for an untethered control system and method for autonomous drones traveling down a wellbore to provide more efficient and flexible control environments.
Embodiments of the present disclosure provide a more efficient control system or method for deploying and controlling autonomous drones into a wellbore. In addition, the control system or method in accordance with the present disclosure provide solutions for controlling, testing, directing and monitoring operations of the drones or other peripheral devices/components that help the deployments of the drones, such as a magazine, a launcher, a lubricator unit, a lift, or the like.
According to an aspect, the control system 100 in accordance with the present disclosure is configured to control operations of drones before and after their deployment into a wellbore for performing various actions within the wellbore, such as positioning, deploying, activating, detonating, fracturing, perforating operations, or the like, or other supporting devices or components such as a magazine or a launcher, and/or monitor status thereof.
For example, the control system may perform actions including, but not limited to identifying and controlling the magazine and magazine contents (e.g., drones), controlling the launcher and a lubricator unit, and the deployment of the drones 16 into the wellbore. The control system may further be configured to assign set and reset information (e.g., status, location/depth assignment, simulated location tracking in real time, etc.) required by the magazine and the magazine contents, and display active transmit status of markers within a wellbore (e.g., beacons, magnets, chemical traces, casing collar locators (CCLs), sensors for sensing vibration, acoustic signals or any properties that indicate an explosion or perforation has occurred) using theoretical figures showing CCLs within the wellbore. According to an aspect, the control system performs a variety of tests of the devices or the drones mentioned above.
The control system may include one or more control interfaces for performing the above control actions. The control interfaces may include a hardware control interface, a software control interface, and/or combination thereof configured to generate, provide and exchange control signals or information between the control system and any of devices/components such as drones, magazines, a launcher, a lift, a lubricator, etc., disclosed in the present disclosure.
A more particular description will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings. Understanding that these drawings depict only typical embodiments thereof and are not therefore to be considered to be limiting of its scope, exemplary embodiments will be described and explained with additional specificity and detail through the use of the accompanying drawings in which:
Various features, aspects, and advantages of the embodiments will become more apparent from the following detailed description, along with the accompanying figures in which like numerals represent like components throughout the figures and text. The various described features are not necessarily drawn to scale, but are drawn to emphasize specific features relevant to some embodiments.
The headings used herein are for organizational purposes only and are not meant to limit the scope of the description or the claims. To facilitate understanding, reference numerals have been used, where possible, to designate like elements common to the figures.
Reference will now be made in detail to various embodiments. Each example is provided by way of explanation and is not meant as a limitation and does not constitute a definition of all possible embodiments.
For this disclosure, the term “drone” and “wellbore drone” are interchangeable. The drone (or the wellbore drone) may refer to a device configured for use in a wellbore to have various functions and tasks of (wellbore) tools such as a perforating gun, a plug/frac plug, an explosive jet cutter, or any other ballistic device or tools; or in another aspect, the drone itself may refer to any one of the (wellbore) tools.
Further, the term “magazine content(s)”, “magazine chamber content(s)”, and/or the like may refer to drone(s) or tool(s) stored in the magazine.
This application incorporates by reference each of the following pending patent applications in their entireties: U.S. patent application Ser. No. 16/537,720, filed Aug. 12, 2019; U.S. patent application Ser. No. 16/451,440, filed Jun. 25, 2019; International Patent Application No. PCT/EP2019/066919, filed Jun. 25, 2019; International Patent Application No. PCT/US2019/063966, filed May 29, 2019; U.S. patent application Ser. No. 16/423,230, filed May 28, 2019; U.S. Provisional Patent Application No. 62/842,329, filed May 2, 2019; U.S. Provisional Patent Application No. 62/841,382, filed May 1, 2019; International Patent Application No. PCT/IB2019/000526, filed Apr. 12, 2019; U.S. Provisional Patent Application No. 62/831,215, filed Apr. 9, 2019; International Patent Application No. PCT/IB2019/000530, filed Mar. 29, 2019; U.S. Provisional Patent Application No. 62/823,737, filed Mar. 26, 2019; International Patent Application No. PCT/IB2019/000537, filed Mar. 18, 2019; U.S. Provisional Patent Application No. 62/816,649, filed Mar. 11, 2019; U.S. Provisional Patent Application No. 62/720,638, filed Aug. 21, 2018; U.S. Provisional Patent Application No. 62/765,185, filed Aug. 16, 2018; U.S. Provisional Patent Application No. 62/690,314, filed Jun. 26, 2018; U.S. Provisional Patent Application No. 62/678,654, filed May 31, 2018; and U.S. Provisional Patent Application No. 62/678,636, filed May 31, 2018.
For purposes of illustrating features of the embodiments, embodiments of the disclosure will now be introduced in reference to the figures. Those skilled in the art will recognize that this example is illustrative and not limiting and is provided purely for explanatory purposes.
Referring now to
Referring further to
The U.S. Provisional Application No. 62/678,654, filed May 31, 2018, describes more details of configurations and operations of the magazine 2, the launcher 3, and/or other devices coupled thereto, the entire disclosure of which is incorporated by reference herein in its entirety to the extent that it is consistent with this disclosure.
According to an aspect, the drones 16 are tested prior to being mounted into the magazine 2, and thus, prior to deployment into a wellbore. The drones 16 may be tested after they have been mounted into the magazine 2. To this end, the magazine 2 can be connected to an external power source 1000 via a wired or wireless connection and trigger a self-test for itself and every chamber 13 and its contents (e.g., drones). Unique IDs (e.g., C1-C6), which may be any combination of numbers and/or letters, are assigned to the chambers 13, respectively. The magazine 2 itself will have indicators such as digital numbers, color LEDs, and/or any other component approximate thereto to reflect an issue with any of its chambers, respective drones 16 retained in the chambers 13, and/or the magazine 2. The indicators may be colored to show statuses of the contents or self-test results thereof (e.g., red for “fail”, green for “pass”). A piston 11 interacting with the caisson 7 will be described hereinbelow.
Referring back to
As illustrated in
For example, when the control system 100 performs a certain control action for a device such as a drone, a magazine, a launcher, or the like, it may be understood that one or more control interfaces of the control system 100 perform the control action.
Referring now to
In one embodiment, the control system 100 is configured for controlling the magazine unit 2 to: initiate a self-test on the magazine 2 or chamber contents thereof; identify and flag a failed self-test of a drone; lock a chamber based on the self-test results of a drone (e.g., fail=locked); assign a location for the delivery of the magazine contents; identify and visualize magazine chamber contents and their pre-determined location, show detailed magazine information, unique ID, and self-test results.
The control system 100 is configured for controlling the magazine unit 2 to report a result of the self-test to the control system 100 upon the self-test being completed.
The self-test on the magazine unit 2 may include testing functionality or status of the drone 16; testing functionality or status of an on-board control system 10; testing current software (S/W) version; testing the magazine units integrity on the on-board control system 10; testing functionality or status of a wellbore tool (e.g., perforating gun, plug, detonator, jet cutter, etc.) of the drone 16; and testing functionality or status of an internal power source 20 (e.g., battery) of the drone 16.
The self-test on the magazine unit 2 may further include: testing whether a pre-determined location is assigned to a drone within a magazine chamber 13; whether a tool (or a drone) has been identified by the control system (for wellbore tracking purposes); and whether a magazine chamber chain is functioning properly.
In one embodiment, the control system 100 is configured for controlling the magazine unit 2 to perform a self-test on the drone 16, a combination of the one or more chambers 13 and the drone 16, or all the chambers 13 and the drone 16 at once.
In one embodiment, the control system 100 is aware of the self-test results and dictates if the tool (or drone) moves forward into a lubricator 7 and down the wellbore. If the tool or contents of the magazine chamber 13 fail the self-test, the magazine chamber 13 containing the tool will not open to the lubricator 7 and will be flagged as inoperable/unusable and will remain inaccessible until it can pass a self-test. The chamber 13 will be locked through an electrical connection/device to prevent the loading, exposure, or unloading of a failed drone into the wellbore. A passed self-test will result in the deployment of the tool (or drone) from the magazine chamber 13 into the lubricator 7 and down the wellbore.
For example, for a first drone and a second drone (not shown) out of a plurality of drones 16 each mounted in the chambers 13, the control system 100 may determine the first drone as a pass drone upon the first drone passing the self-test on the functionality or status thereof; and determine the second drone as a fail drone upon the second drone failing the self-test on the functionality or status of the second drone. The control system 100 controls the magazine 2 to: dispense the first drone (e.g., passed drone) for being deployed into the wellbore; and hold the second drone (e.g., failed drone) to prevent the second drone from being dispensed into the wellbore until the second drone passes another self-test to be initiated by the control system 100. The control system 100 further controls the magazine 2 to lock a door of a chamber 13 where the second drone is located, to hold the second drone.
A single magazine 2 is designed for a plurality of drones 16. The drones will be held (or stored) in their respective magazine chambers 13 within the magazine 2 as depicted in
In one embodiment, the control system 100 may be configured to assign, set, and reset information (e.g., status of each chamber or drone, a location assignment, a simulated location tracking in real time, etc.) required by the magazine unit 2 and the drone 16 placed in the corresponding chamber 13 of the magazine unit 2.
In addition, in one embodiment, prior to the deployment of the drone 16, the control system 100 may receive magazine information including, but are not limited to: a unique ID 15 or a type of the drone 16 corresponding to a chamber 13; a deployment sequence assigned for the drone 16; an assigned location to the drone 16 within the wellbore; and self-test results on individual components of the magazine unit 2. The received magazine information can be displayed in a 2D or 3D mode using one or more control interfaces of the control system 100.
Referring back to
In addition, the launcher 3 also incorporates the programming and user interface of the control system 100 or manual PLC control unit for deployment of drones down a wellbore, tasks associated with preparing the magazine 2 and the magazine chamber 13, and any self-test processes that must occur for drone deployment. Self-test processes of the launcher 3 may include testing the functionality of connection units, lock doors, transfer mechanism of a drone from the magazine 2 to the lubricator unit 7, pressure equalization, and a piston or other electromechanical devices.
The control system 100 controls the launcher 3 to open or close connection units and lock doors between the magazine chamber 13 and a lubricator 7. When a drone is ready, the control system 100 initiates the transfer of the drone 16 from the magazine chamber 13 into the lubricator 7. Once the drone 16 is in its designated position in the lubricator 7, the control system 100 confirms that the lock doors have closed and pressure-sealed. Further, the control system 100 pressurizes the lubricator 7 to match the wellbore pressure and initiates the kicking of the drone 16 into the wellbore via an electromechanical device such as a piston 11.
Turning now to embodiments of a control mechanism for drones 16, the control system 100 can provide detail information including setting a sequence of events/drone deployments, track drones inside a wellbore, show information regarding drone contents, ID and self-test results; determine or track detonation of a drone; and show the active markers (e.g., beacons, magnets, chemical traces, CCLs, vibration or acoustic sensors, etc.). The control system 100 may be configured to simulate the location of a drone or display a drone using a corresponding unique ID.
Prior to deployment of the drone 16 into the wellbore (e.g., during the pre-deployment phase), the control system 100 has capabilities of: initiating self-test of a drone; identifying and flagging a failed self-test; flagging failed-self test drones as unusable/inoperable; assigning a location for the delivery of a drone; testing the status and functionality of all drone components including an on-board control system 10 (or processors), active wellbore markers (see 14 of
In one embodiment, the drone 16 may include a machine learning system (not shown) implemented based on at least one algorithm of an artificial neural network (ANN), recurrent neural network (RNN) including long short-term memory (LSTM) (i.e., a LSTM network), a support vector machine, a decision tree, a deep learning, a sparse network of winnows (SNoW), a K-nearest neighbor, a Naïve Bayes, or the like, or any combination thereof.
As discussed above, various self-test analysis on the magazine 2, the launcher 3, the drones 16, and any other devices supporting the deployment of the drones are performed prior to deployment.
For example, the self-test analysis can be electronically initiated in the magazine chamber 13. Status measurements of the internal power source 20 within the drone module or plug module will be assessed during the self-test analysis. The self-test analysis will ensure all markers such as beacons and/or permanent magnets are active and therefore can be recognized by a drone traveling down a wellbore. The self-test results will be assessable by the control system 100 and an operator.
After the interrogation/self-testing of the magazine 2, the drone 16, and the launcher 3, the drone 16 will be pushed from the lubricator 7 into the wellbore. Due to high pressure and the fluid flow path, as depicted in
In one embodiment, referring now to
In one embodiment, the on-board control system 10 may report to the holding chamber 13 its currents, possibly continuously, while being powered by the external power source 1000.
The on-board control system 10 includes one or more control interfaces for providing control commands to control the drone 16. A wellbore tool of the drone is configured to perform one or more actions within a wellbore based on the control commands provided from the on-board control system 10. The one or more actions include, but are not limited to: positioning, deploying, activating, and detonating a wellbore tool. To this end, the on-board control system 10 may include one or more processors 212 configured to provide the control commands to the wellbore tool 240, a memory 214 coupled to the one or more processors 212, and CCL's, gyroscope, sensors, an initiation module, etc.
In one embodiment, the control commands are loaded into the memory 214, prior to the drone 16 being deployed into the wellbore. In another embodiment, the control commands are generated by the one or more processors 212 at least based on one or more indications received from one or more markers (e.g., beacons, magnets, chemical traces, CCLs, vibration or acoustic sensors, etc.) placed in the wellbore through a communication unit 220 disposed in the drone 16.
A wellbore tool 240 of the drone 16 is configured to perform at least one action within the wellbore based on the control commands provided from the on-board control system 10.
While the drone 16 is outside of the wellbore (e.g., prior to the deployment of the drone), the drone 16 is connected to the external power source 1000 via a wired or wireless connection 171 and is not engaged to the internal power source 20 (e.g., battery). However, this connection 171 may be used to verify the status and the functionality of the internal power source 20. The connection points 8, 9 can be at the front or rear end of the drone 16 which allow a variety of tests prior to deployment, but will not allow for drone initiation.
In one embodiment, prior to deployment of the drone into the wellbore, status of the internal power source 20 is tested while the internal power source 20 is inactivated. For example, the power level of the internal power source 20 is measured and reported to the control system 100 while the internal power source 20 is inactivated (or not engaged).
The internal power source 20 may be connected to the wellbore tool 240 and the on-board control system 10. However, in some aspects, prior to deployment of the drone, the internal power source 20 is inactive (or not engaged) to the wellbore tool but active (or engaged) to the on-board control system 10 and becomes active (engaged) upon the deployment of the drone into the wellbore and occurrence of one or more power trigger events which are associated with a specific depth (or location) of the drone within the wellbore, a temperature or pressure around the drone within the wellbore, mechanical or chemical initiation conditions, or the like. In other aspects, prior to deployment of the drone, the internal power source 20 is inactive to both the wellbore tool 240 and the on-board control system 10 and becomes active upon the deployment of the drone into the wellbore and the occurrence of one or more power trigger events. If the internal power source 20 is not active, there is no power to the wellbore tool 240 and/or the on-board control system 10.
In one embodiment, the one or more power trigger events include, but are not limited to: matching of a location of the drone 16 to a predetermined location within a wellbore; matching of a temperature inside/outside the drone 16 to a predetermined temperature; and matching of a pressure inside/outside the drone 16 to a predetermined pressure. In addition, the one or more power trigger events include, but are not limited to: receiving a mechanical force or an electromagnetic force provided from one or more markers 14 placed within the wellbore, so that the mechanical force or the electromagnetic force activates the internal power source 20 or a power connection 22 output from the internal power source 20.
In one aspect, the location of the drone 16 may be determined, by at least one of an external control system 100 and the on-board control system 10, based on a flow speed of frac fluid along which the drone 16 travels within the wellbore and a time passed after the drone 16 is dispensed for being deployed into the wellbore. For example, the flow of the frac fluid may be monitored and changed by the control system 100. Regardless of the ability to change the flow, the control system 100 (or the on-board control system 10) may receive flow information to monitor average (inaccurate) progress of the moving drone. By determining the amount of time passed and the speed of the fluid at every moment, the control system 100 (or the on-board control system 10) can calculate and determine the location of a moving drone within the wellbore. The location of the drone 16 can be approximated as the amount of friction when traveling in the wellbore is unknown and likely negligible.
In another aspect, the location of the drone 16 may be determined based on one or more location indications received from one or more location markers 14 placed within the wellbore using a communication unit 220 of the drone 16. The one or more location markers 14 may include, but are not limited to: beacons, magnets, chemical traces, and/or CCL's, or the like, more details of which are described in U.S. Provisional Application No. 62/678,636, filed May 31, 2018, and the entire disclosure of which is incorporated by reference herein in its entirety to the extent that it is consistent with this disclosure.
In one embodiment, the drone 16 includes one or more sensors 230 (e.g., a temperature sensor, a pressure sensor, a position sensor, an orienting sensor, and an active oscillator-circuit casing collar locator) configured to measure a temperature or pressure inside/outside the drone and send the measured temperature or pressure to the on-board control system 10 of the drone 16 using the communication unit 220. The on-board control system 10 may compare the received temperature or pressure to respective predetermined temperature or pressure to determine if a power trigger event occurs. In some aspects, the sensors 230 are operable without power.
In one embodiment, the temperature or the pressure inside/outside the drone 16 may be determined based on one or more temperature or pressure indications received from one or more temperature markers or pressure markers placed within the wellbore using the communication unit 220 of the drone 16.
In addition to tracking the location of the moving drone 16, various sensors (not shown) other than the location markers 14 may be placed at a wellhead of the wellbore to detect vibrations indicating a perforation or explosion has occurred. The sensors may sense vibration, acoustic signals, or any other properties that may indicate an explosion has occurred. By determining the detonation status, an operator can determine if the drone 16 has perforated the well casing and initiate the next step in the fracturing process. To this end, the control interface of the control system 100 may be configured to allow the operator to monitor and track a (real-time) location of the drone 16 and active explosions or perforations to determine, e.g., whether perforations have been made.
As previously discussed, each drone 16 has its unique ID 15 within a magazine chamber 13 that can be addressed by the control system 100 as depicted in
Referring further to
Referring now to
In addition, referring now to
After a drone 16 has been deployed into a wellbore, the control system 100 can approximate the location/depth and detonation status of a drone. As previously discussed, the location/depth of a drone will be calculated based on a time and fluid speed, and the detonation status of the drone 16 will be determined by vibration or acoustic sensor readings taken at the wellhead. The approximate calculated location/depth of the drone 16 can be relayed in real-time to the control system 100, as depicted in
Turning now to embodiments where drones 16 are connected in a string (i.e., a string of drones) to travel in a wellbore, as illustrated in
In one aspect, referring to
In another aspect, referring to
Referring to
Referring now to
Further, prior to deployment of the drone 16, the external power source 1000 supplies electric power to the drone and after the deployment of the drone 16 into the wellbore, supplying no power to the wellbore tool 240 until one or more power trigger events occur (not shown).
Still further, after the deployment of the drone 16 into the wellbore, an internal power source of the drone 16 may be inactivated to the wellbore tool and/or the on-board control system 10 until the one or more power trigger events occur (not shown).
Hereinafter, more detail operations and algorithms of a control terminal 100′ of the control system 100 in conjunction with a drone 16, a magazine 2, a launcher 3, a lift 5, a pressure chamber 23, a magazine chamber 13, and a wellhead 200 are described with reference to
With regard to the drone 16, there are at least two states that need to be controlled: pre-deployment (Static) state and post-deployment (Dynamic) state. During the pre-deployment state, there is no power to the drone 16 and the battery (e.g., 20) is not connected to any of control means until sensors engage the battery, this is based on a wellbore environment including, but are not limited to: a depth, temperature, pressure, time, or the like.
In the pre-deployment state, operations of the drone 16 will be described with respect to cases where remote control interfaces and local control/indication interfaces are applied. Local controls are attached to the system 100 and may include buttons or a touch screen/touch pad on the device. In the event that remote control interfaces are utilized, such interfaces may be a computer that is at a location remote/far away from the device, such as a location other than adjacent the site of deployment.
The remote control interfaces may include, but are not limited to: a touch screen interface, wireless button control, wireless tablet control, computer control, wired control box that is a safe distance from the system/component. Referring to
In an embodiment, the self-tests on the drone, include a power status, a sensor status, a perimeter setup, a version control, a mission control, and a state control and verification.
Regarding the power status, the control terminal 100′ may send a power status request message to the drone battery 20 (S211) and receive a power status reply message from the drone battery 20 (S212). The power status reply message may include information such as a drone battery power not being engaged; and the drone battery not powering a control system at this time—e.g., the battery will only be engaged based on perimeter sensors and when the drone has been deployed (see perimeter setup for sensor perimeters/algorithms that will be described below). In addition, the power status reply may further include information such as trigger not being engaged at this time; and drone unique ID and self-test results.
Regarding the sensor status, the control terminal 100′ may send a sensor status request message to the drone battery 20 (S213) and receive a sensor status reply from the drone battery 20 (S214), including information such as the sensors being engaged to the control system. For example, the sensor status reply may be either “Yes” or “No” response indicating whether the sensors have been engaged to the control system.
Regarding the perimeter setup status, the control terminal 100′ may send a perimeter setup status request message to the drone battery 20 (S215) and receive a perimeter setup status reply message from the drone battery 20 (S216), indicating the battery will only be engaged under the following circumstance at ‘X’ PSI/pressure, ‘X’ temperature, ‘X’ depth, ‘X’ distance travelled, ‘X’ time, or the like.
Regarding the version control, the control terminal 100′ may send a version request message to the drone battery 20 (S217) and receive a version status reply message from the drone battery 20 (S218), including information such as: a version that has been downloaded onto the drone for program algorithms; and an artificial intelligence (AI)-based program algorithms (e.g., machine-learning algorithms) and management for depth correlation—e.g., Train AI and set algorithms.
Regarding the mission control, the control terminal 100′ may send a mission verification request message to the drone battery 20 (S219) and receive a mission verification reply message from the drone battery 20 (S220), including information such as: a mission plan that has been downloaded onto the drone. For example, the mission plan may include: a pre-determined location assignment; and power engagement at programmed depth and/or time and/or temperature and/or pressure.
Regarding the state control and verification, the control terminal 100′ may send a state control and verification request message to the drone battery 20 (S221) and receive a state control and verification reply message S222 from the drone battery 20, including: information being shared with the outside world through interfaces; and information regarding state, status control, and verification being shared with the outside world via interfaces.
In addition, the local control interfaces/indications may be associated with a local indication panel on the drone 16, and a local control functionality thereon.
First, the local indication panel may include, but is not limited to: an interface directly on the drone or a wired remote/interface that is a safe distance from the system. In the case of drones loaded into a magazine, the indication can be a part of a magazine indication panel. For example, the indication can be a part of one large interface showing all pre-deployment control points. The indications may be associated with: a drone status request, a sensor status request, a perimeter setup status request, a version request, and a mission verification request. The indications of the drone status request may be associated with: a visual aid showing active or inactive a drone battery; and a panel showing a drone unique ID and self-test results (e.g., pass or fail). The indications of the sensor status request may be associated with: a visual aid showing active or inactive sensor. The indications of the perimeter setup status may be associated with: a panel showing parameters set for that specific drone. The indications of the version request may be associated with a panel showing a downloaded version on the drone. The indications of the mission verification request may be associated with the drone mission verification including: a panel showing a drone mission and plan (e.g., 3D representation of the drone mission).
Next, regarding the local control functionality, the local control may include, but is not limited to: a touch screen interface or manual buttons for control on the system/subsystem (e.g., drone, magazine and other elements), wired remote control located a safe distance from the system/subsystem, or any other control methods. In the case of a loaded drone, the local control can be a part of the magazine control panel.
The local control functionalities may be associated with the drone status request, a sensor status request, a perimeter setup status, a version request, and a mission verification request. The local controls for the drone status request include: manually pressing buttons to show status of the drone including battery engagement status, a location of the drone in a magazine chamber (e.g., chamber location), a drone unique ID and self-test results, or the like. The local controls for the sensor status request include manually pressing buttons to engage sensors such as “On” or “Off”. The local controls for the perimeter setup request include manually pressing buttons to show the perimeter setup status for each individual drone, such as a pressure, a temperature, a depth, a time, and a distance traveled. The local controls for the version request include manually pressing buttons to show a downloaded version on the drone. The local controls for the version request include manually pressing buttons to show status of the drone, such as a panel showing a drone mission and plan such as 3D representation of the drone mission.
In the post-deployment state, control operations on the drone 16 will be described with respect to cases where remote control interfaces and local control/indication interfaces are applied.
The remote-control interfaces may include, but are not limited to: a touch screen interface, wireless button control, wireless tablet control, computer control, wired control box that is a safe distance from the system/component. Referring to
In one embodiment, the control messages between the drone 16 and the control terminal 100′ may be associated with an inflight status, a power engagement, a sensor status, a trigger engagement, a depth correlation algorithm, and a tool activation process.
Regarding the infight status, the control terminal 100′ may send an inflight status request message to the drone 16 (S311) and receive an inflight status reply message from the drone 16 (S312). The inflight status reply message may include information associated with a drone status and location while traveling inside the wellbore which may be monitored based on, e.g., cross-correlating measurements between sensors with different types.
Regarding the power engagement, the control terminal 100′ may send an engage power request message to the drone 16 (S313) and receive an engage power reply message from the drone 16 (S314). The engage power reply message may include information associated with the battery being engaged based on one or more of perimeters being sensed, such as a depth, a time, a temperature, a pressure based, and a distance traveled.
Regarding the sensor engagement, the control system 100 may send a message to the drone indicating a sensor status request (S315) and receive a sensor status reply from the drone 16 (S316) that includes the following information, but are not limited to: whether an environment for sensors monitoring and sensing is “Active” or “Inactive”; whether a sensor has engaged a battery (e.g., power to control and trigger).
Regarding the trigger engagement, the control terminal 100′ may send an engage trigger request to the drone 16 (S317) and receive an engage trigger reply message from the drone 16 (S318). The engagement trigger reply message may be either “Yes” or “No” response which depends on what is being sensed in the wellbore—e.g., is it time to activate the trigger?; is it time to perforate?; this is based on a location in the wellbore; and sensors can determine a location.
Regarding the depth correlation algorithm that can monitor a depth correlation to activities including power engagement and deployment, the control terminal 100′ may send a depth correlation request message to the drone 16 (S319) and receive a depth correlation reply message from the drone 16 (S320). The depth correlation reply message may include information, e.g., whether a depth correlation to engage activities including the power engagement and the drone activation is being monitored.
Regarding the tools activation process, the control terminal 100′ may send a drone activation request message to the drone 16 (S321) and receive a drone activation reply message S322 from the drone 16. The drone activation reply message may include information, e.g., whether a drone is activated (S322).
In addition, the local control interfaces/indications may be associated with a local indication panel on the drone 16, and a local control functionality thereon.
First, the local indication panel may include, but is not limited to: an interface directly on the drone or a wired remote/interface that is a safe distance from the machine (e.g., drone). In the case of drones loaded into a magazine, all indications can be part of a magazine indication panel, and all indications can be seen on one panel. For example, the indications may be associated with: an inflight status, an engage power, a sensor status, an engage trigger, a depth correlation, and a drone activation. The indications of the inflight status may be associated with a magazine panel indicating an active drone travelling down a wellbore. For example, the magazine panel may show a drone unique ID, a travelling speed of each individual traveling drone entering the wellbore, an approximate location of the drone, and all other functions associated with the drone as it is traveling down the wellbore. Inflight status indications for multiple drones may be shown on the panel. The indications of the engage power may be associated with a magazine panel indicating when power is engaged on the drone. This indication may be a part of the inflight status panel indication. For example, the indication can be a simple symbol of a battery that lights up when engaged and lights off (e.g., dark) when not engaged. The indications of the sensor status may be associated with: a magazine panel indicating when a sensor is active or inactive. For example, the indication can be a part of the inflight status panel indication. The indications of the engage trigger may be associated with: a magazine panel indicating when trigger is engaged. For example, the indications on the panel may include “trigger engaged”, “trigger inactive”, “trigger ready”, “triggered”, or the like. The indications of the depth correlation may be associated with: a magazine panel indicating drone depth correlation activities. For example, the indication can be a part of the inflight status panel indication. The indications of the drone activation may be associated with: a magazine panel indicating when the drone activation process and sensor integration are complete. For example, the indication can be a part of the inflight status panel indication, and the indications on the panel may include “drone activated”, “drone inactive”, “drone waiting”, “drone travelling”, or the like.
Next, regarding the local control functionality, the local control may include, but is not limited to: a touch screen interface or manual buttons for control on the machine/system, wired remote control located a safe distance from the machine/system, or any other control methods. In the case of a loaded drone, the local control can be a part of the magazine control panel.
The local control functionalities may be associated with: an inflight status request, an engage power, a sensor status, an engage trigger, a depth correlation, and a drone activation request. The local controls for the inflight status request include manually pressing buttons to show an inflight status of the drone—e.g., no control is needed for the drone inflight here. The local controls for the engage power include manually pressing buttons to engage or disengage drone power. The local controls for the sensor status include manually pressing a button to engage a sensor and/or pressing a button to view a sensor status. The local controls for the engage trigger include manually pressing a button to engage a trigger and/or pressing a button to view a trigger status. The local controls for the depth correlation include manually pressing buttons to indicate a depth correlation request. The local controls for the drone activation request include manually pressing buttons to activate and deactivate drone activity.
Turning now to embodiments regarding controls on the magazine and actions, operations of the magazine 2 will be described with respect to cases where remote control interfaces and a local control/indication interfaces are applied.
The remote control interfaces may include, but are not limited to: a touch screen interface, wireless button control, wireless tablet control, computer control, wired control box that is a safe distance from the system/component. Referring to
Regarding the magazine status, the control terminal 100′ may send a magazine status request message to the magazine 2 (S411) and receive a magazine status reply message from the magazine 2 (S412). The magazine status reply may include information associated with: self-test results on the magazine and the magazine contents; and the magazine contents and unique IDs (e.g., drone ID, magazine chamber ID). For example, the self-test results on the magazine and the magazine contents may be associated with magazine chamber(s) loaded with drone(s), attachments to a lubricator, lift, chamber contents functioning properly, and a magazine chain functioning properly.
Regarding the magazine actions, the control terminal 100′ may send a magazine action request message to the magazine 2 (S413) and receive a magazine action reply message from the magazine 2 (S414). The magazine action reply message may include information associated with engaging self-testing of contents, auto-locking a magazine chamber for a failed self-test, or the like.
In addition, the local control interfaces/indications may be associated with a local indication panel on the magazine 2, and a local control functionality thereon.
First, the local indication panel may include, but is not limited to: an interface directly on the magazine or a wired remote/interface that is a safe distance from the system/component (e.g., magazine). The indications may be associated with: a magazine status and a magazine action. The indications of the magazine status may be associated with: a magazine panel showing all chambers with their unique IDs; a magazine panel lighting up “green” for a chamber tested and approved for use and displaying the magazine chamber and a corresponding drone unique ID; and a magazine panel lighting up “red” for a chamber tested of which content failed on self-test and not approved for use and displaying the magazine chamber and a corresponding drone unique ID—e.g., the chamber may also have a lock symbol to indicate that it has been auto-locked due to a failed-self test, or user control over the chamber. The indications of the magazine status may be associated with a magazine panel showing a connection with a lift system, greater details of which will be described later. The indications of the magazine action may be associated with: a magazine panel indicating auto-locked chambers and a magazine panel indicating self-tests in progress.
Next, regarding the local control functionality, the local control may include, but is not limited to: a touch screen interface or manual buttons for control on the machine/system (e.g., magazine), wired remote control located a safe distance from the machine/system, or any other control methods.
The local control functionalities may be associated with a magazine status request and a magazine action. The local controls for the magazine status request include manually pressing buttons to show magazine status including: chamber contents, a unique ID and self-test results; attachments to a lubricator, lift, chamber contents functioning properly; and a magazine chain functioning properly. The local controls for the magazine action include manually pressing buttons to engage self-testing of contents, auto-locking a magazine chamber for a failed self-test, or the like.
Next, turning now to embodiments regarding controls on the drone 16 and the magazine 2, operations of the magazine 2 and the drones 16 will be described with respect to cases where remote control interfaces and a local control/indication interfaces are applied.
The remote control interfaces may include, but are not limited to: a touch screen interface, wireless button control, wireless tablet control, computer control, wired control box that is a safe distance from the system/component (e.g., drone and/or magazine). Referring to
Referring further to
Referring further to
In addition, the local control interfaces/indications may be associated with a local indication panel on the magazine 2 and/or and a magazine chamber 13, and a local control functionality thereon.
First, the local indication panel may include, but is not limited to: an interface directly on the magazine/magazine chamber, or a wired remote/interface that is a safe distance from the system/component (e.g., magazine and/or drone). The indications may be associated with: content requests for the magazine chamber and the drone whose indications include a magazine panel showing loaded contents and drone information; and status requests (e.g., magazine status request and drone status request) for the magazine and the drone whose indications include a magazine panel showing a magazine and drone status.
Next, regarding the local control functionality, the local control may include, but is not limited to: a touch screen interface or manual buttons for control on the system/component (e.g., magazine and/or drone), wired remote control located a safe distance from the machine/system, or any other control methods.
The local control functionalities may be associated with: content requests for the magazine chamber and the drone including pressing buttons to show contents and all related information (e.g., magazine chamber and drone unique ID) pertaining to the magazine chamber and the drone. The local controls for the status requests for the magazine 2 and the drone 16 include pressing buttons to show content status (e.g., a self-testing, downloading onto a drone).
Next, turning now to embodiments regarding controls on a lift 5 and a magazine 2, control operations of the lift 5 and the magazine 2 will be described with respect to cases where remote control interfaces and local control/indication interface are applied.
The remote control interfaces may include, but are not limited to: a touch screen interface, wireless button control, wireless tablet control, computer control, wired control box that is a safe distance from the system/component (e.g., lift and/or magazine). Referring to
Referring further to
Referring further to
In addition, the local control interfaces/indications may be associated with a local indication panel on the lift 5 and/or the magazine 2, and a local control functionality thereon.
First, the local indication panel may include, but is not limited to: an interface directly on the lift 5 and/or the magazine 2, or a wired remote/interface that is a safe distance from the system/component (e.g., lift and/or magazine). The indications may be associated with: a status request for the lift 5, a lift connection, a lift control, and a confirm position. The indications of the status request for the lift may be associated with a lift engine status such as: a lift panel lighting up “green” and displaying “lift ready”; and a light panel lighting up “red” and displaying “lift error”. The indication of the lift connection may be associated with a magazine connection status of the lift such as: both panels (e.g., panels on the lift and the magazine) lighting up “green” and displaying “connected; and the both panels lighting up “red” and “unable to connect”. The indications of the lift control may be associated with a lift movement status such as: the lift panel showing a lift movement (e.g., a lift's up, down, left, right, start, continue, lifting, stop, etc.); and the lift panel showing a lift position in real time in relation to a launcher. The indications of the confirm position may be associated with the lift reaching its position and the magazine being connected to the launcher such as: a lift panel lighting up “green” and displaying “positioned”; the magazine panel lighting up “green” and displaying “connected to a launcher”.
Next, regarding the local control functionality, the local control may include, but is not limited to: a touch screen interface or manual buttons for control on the system/component (e.g., lift and magazine), wired remote control located a safe distance from the machine/system, or any other control methods.
The local control functionalities may be associated with: a status request, a lift connection, a lift control, and a confirm position. The local controls for the status request include manually pressing buttons to show a light engine status. The local controls for the lift connection include manually pressing buttons to connect the lift and the magazine. The local controls for the lift control include manually pressing buttons to control a lift position such as a lift's up, down, left, right, start, continue, stop, etc. The local controls for the confirm position request include manually pressing buttons to show status of a lift position, manually pressing buttons to show status of a magazine connection, etc.
Next, turning now to embodiments regarding controls on a magazine chamber 13 and a pressure chamber 23, control operations of the magazine chamber 13 and the pressure chamber 23 will be described with respect to cases where remote control interfaces and local control/indication interfaces are applied.
The remote-control interfaces may include, but are not limited to: a touch screen interface, wireless button control, wireless tablet control, computer control, wired control box that is a safe distance from the system/component (e.g., pressure chamber and/or magazine chamber). Referring to
Referring further to
Referring further to
Referring further to
Referring further to
In addition, the local control interfaces/indications may be associated with a local indication panel on the magazine chamber 13 and/or the pressure chamber 23, and a local control functionality thereon.
First, the local indication panel may include, but is not limited to: an interface directly on the magazine chamber 13 and/or the pressure chamber 23, or a wired remote/interface that is a safe distance from the system/component (e.g., pressure chamber and/or magazine chamber).
The indications may be associated with: content requests for the pressure chamber and the magazine chamber; status requests for the pressure chamber and the magazine chamber; a drone transfer status from the magazine chamber to the pressure chamber; and a drone deploy status indicating that a drone has been successfully transferred.
The indications of the content requests for the pressure chamber and the magazine chamber may be associated with: a magazine chamber panel lighting up “green” for a chamber tested and approved for use and displaying the magazine chamber and drone unique ID; a magazine chamber panel lighting up “red” for a chamber tested whose content failed on self-test and not approved for use and displaying the magazine chamber and drone unique ID; and a pressure chamber panel lighting up “green” for a content tested and approved for use and displaying the pressure chamber content (e.g., drone) unique ID—e.g., the pressure chamber will not light up red because the magazine chamber will not open to allow for the transfer of a drone into the pressure chamber if it has failed a self-test; the failed magazine chamber will be locked and skipped in the loading process; and the failed drone will be assessed and re-tested prior to use. The indications of the status requests for the pressure chamber and the magazine chamber may be associated with: both panels (e.g., panels on the pressure chamber and the magazine chamber) lighting up “green” and displaying “ready for transfer”; and both panels lighting up “red” and displaying “not ready for transfer”. The indications of the drone transfer status may be associated with: a pressure chamber panel lighting up “green” and displaying “chamber doors open, drone transferred”; a magazine chamber panel lighting up “green” and displaying “chamber doors open, drone transferred”; and both panels that will light up “red” and displaying “unable to transfer drone” if there is a transfer issue. The indications of the drone deploy status may be associated with: both panels lighting up “green” and displaying “chamber doors closed, drone transferred”.
Next, regarding the local control functionality, the local control may include, but is not limited to: a touch screen interface or manual buttons for control on the system/component (e.g., pressure chamber and/or magazine chamber), wired remote control located a safe distance from the machine/system, or any other control methods.
The local control functionalities may be associated with: of: the content requests, the status requests, the drone transfer, and the drone deploy status.
The local controls for the content requests include: manually pressing buttons to show contents of the magazine chamber and/or the pressure chamber, including unique IDs and self-test results. The local controls for the status requests include: manually pressing buttons to show if the pressure chamber is ready for the drone transfer; and manually pressing buttons to show if the magazine chamber is ready for the drone transfer. The local controls for the drone transfer include: manually pressing buttons to open both pressure chamber and magazine chamber doors; manually pressing buttons to engage the magazine chain; and manually pressing buttons to initiate a drone transfer to the pressure chamber. The local controls for the drone deploy status include: manually pressing buttons to close the pressure chamber and magazine chamber doors; pressing buttons to pressure seal the pressure chamber; and pressing buttons on the magazine chamber to engage the magazine chain to align the next chamber—e.g., this control point may depend on whether individual drone is loaded or multiple (or sequential) drones are loaded.
Turning now to embodiments regarding controls on a wellhead 200 and a pressure chamber 23, control operations of the wellhead 200 and the pressure chamber 23 will be described with respect to cases where remote control interfaces and local control/indication interfaces are applied.
The remote control interfaces may include, but are not limited to: a touch screen interface, wireless button control, wireless tablet control, computer control, wired control box that is a safe distance from the system/component (e.g., wellhead and/or pressure chamber). Referring to
Referring further to
Referring further to
Regarding deploying a drone, the control terminal 100′ may activate a piston or other mechanical device/(s) to push a drone into a wellbore. Referring further to
Referring further to
In addition, the local control interfaces/indications may be associated with a local indication panel on the pressure chamber and/or the wellhead 200, and a local control functionality thereon.
First, the local indication panel may include, but is not limited to: an interface directly on the pressure chamber 23 and/or the wellhead 200, or a wired remote/interface that is a safe distance from the system/component (e.g., wellhead and/or pressure chamber). The indications may be associated with: status requests for a pressure equalization between the pressure chamber and the wellhead and conformation of a drone placement; an open wellhead; a deploy drone; and a fluid flow rate.
The indications of the status requests for the pressure equalization and the conformation of the drone placement may be associated with: a panel lighting up “green” and displaying ‘X’ pressure value (green =pressure equalization reached); and a panel lighting up “red” and displaying ‘X’ pressure value (red =pressure equalization needs to be corrected). The indications of the open wellhead may be associated with: a panel lighting up “green” and displaying “open”; and a panel lighting up “red” and displaying “closed”. The indications of the deploy drone may be associated with: a panel lighting up “green” and displaying “drone deployed”; and a panel lighting up “red” and displaying “drone waiting”. The indications of the fluid flow rate may be associated with: a panel lighting up “green” and displaying ‘X’ rate (green =appropriate fluid flow); and a panel lighting up “red” and displaying ‘X’ pressure value (red =fluid flow needs to be corrected).
Next, regarding the local control functionality, the local controls may include, but are not limited to: a touch screen interface or manual buttons for control on the system/component (e.g., wellhead and/or pressure chamber), wired remote control located a safe distance from the machine/system, or any other control methods.
The local control functionalities may be associated with the status requests, the open wellhead, the deploy drone, and the wellhead fluid flow control.
The local controls for the status requests include: manually pressing buttons to initiate pressure equalization between the pressure chamber and the wellhead. The local controls for the open wellhead include: manually pressing buttons to initiate opening of the pressure chamber to the wellhead; manually pressing buttons to initiate opening of the wellhead to the pressure chamber—e.g., the same button may open both the pressure chamber and the wellhead simultaneously. The local controls for the deploy drone include: manually pressing buttons to initiate deployment of a drone into the wellhead—e.g., this button involves activating an electromechanical piston. The local controls for the wellhead fluid flow control include: manually adjusting a fluid flow control—e.g., increasing or decreasing of fluid flow.
An embodiment of drone 16 disclosed herein is illustrated in
As would be understood by one of ordinary skill in the art, electrical power typically supplied via the wireline cable 12 to wellbore tools, such as a tethered drone or typical perforating gun, would not be available to the untethered drone 16. In order for all components of the untethered drone 16 to be supplied with electrical power, a power supply 392 may be included as part of the untethered drone 16. The power supply 392 may occupy any portion of the drone 16, i.e., one or more of the body 310, head 320 or tail 360. It is contemplated that the power supply 392 may be disposed so that it is adjacent any components of the drone 16 that require electrical power.
An on-board power supply 392 for a drone 16 may take the form of an electrical battery; the battery may be a primary battery or a rechargeable battery. Whether the power supply 392 is a primary or rechargeable battery, it may be inserted into the drone at any point during construction of the drone 16 or immediately prior to insertion of drone 16 into the wellbore 16. If a rechargeable battery is used, it may be beneficial to charge the battery immediately prior to insertion of the drone 16 into the wellbore 16. Charge times for rechargeable batteries are typically on the order of minutes to hours.
In an embodiment, another option for power supply 392 is the use of a capacitor or a supercapacitor. A capacitor is an electrical component that consists of a pair of conductors separated by a dielectric. When an electric potential is placed across the plates of a capacitor, electrical current enters the capacitor, the dielectric stops the flow from passing from one plate to the other plate and a charge builds up. The charge of a capacitor is stored as an electric field between the plates. Each capacitor is designed to have a particular capacitance (energy storage). In the event that the capacitance of a chosen capacitor is insufficient, a plurality of capacitors may be used. When a capacitor is connected to a circuit, a current will flow through the circuit in the same way as a battery. That is, when electrically connected to elements that draw a current the electrical charge stored in the capacitor will flow through the elements. Utilizing a DC/DC converter or similar converter, the voltage output by the capacitor will be converted to an applicable operating voltage for the circuit. Charge times for capacitors are on the order of minutes, seconds or even less.
A supercapacitor operates in a similar manner to a capacitor except there is no dielectric between the plates. Instead, there is an electrolyte and a thin insulator such as cardboard or paper between the plates. When a current is introduced to the supercapacitor, ions build up on either side of the insulator to generate a double layer of charge. Although the structure of supercapacitors allows only low voltages to be stored, this limitation is often more than outweighed by the very high capacitance of supercapacitors compared to standard capacitors. That is, supercapacitors are a very attractive option for low voltage/high capacitance applications as will be discussed in greater detail hereinbelow. Charge times for supercapacitors are only slightly greater than for capacitors, i.e., minutes or less.
A battery typically charges and discharges more slowly than a capacitor due to latency associated with the chemical reaction to transfer the chemical energy into electrical energy in a battery. A capacitor is storing electrical energy on the plates so the charging and discharging rate for capacitors are dictated primarily by the conduction capabilities of the capacitors plates. Since conduction rates are typically orders of magnitude faster than chemical reaction rates, charging and discharging a capacitor is significantly faster than charging and discharging a battery. Thus, batteries provide higher energy density for storage while capacitors have more rapid charge and discharge capabilities, i.e., higher power density, and capacitors and supercapacitors may be an alternative to batteries especially in applications where rapid charge/discharge capabilities are desired.
Thus, an on-board power supply 392 for a drone 16 may take the form of a capacitor or a supercapacitor, particularly for rapid charge and discharge capabilities. A capacitor may also be used to provide additional flexibility regarding when the power supply is inserted into the drone 16, particularly because the capacitor will not provide power until it is charged. Thus, shipping and handling of a drone 16 containing shaped charges 340 or other explosive materials presents low risks where an uncharged capacitor is installed as the power supply 392. This is contrasted with shipping and handling of a drone 16 with a battery, which can be an inherently high risk activity and frequently requires a separate safety mechanism to prevent accidental detonation. Further, and as discussed previously, the act of charging a capacitor is very fast. Thus, the capacitor or supercapacitor being used as a power supply 392 for drone 16 can be charged immediately prior to deployment of the drone 16 into the wellbore 16.
While the option exists to ship a drone 16 preloaded with a rechargeable battery which has not been charged, i.e., the electrochemical potential of the rechargeable battery is zero, this option comes with some significant drawbacks. The goal must be kept in mind of assuring that no electrical charge is capable of inadvertently accessing any and all explosive materials in the drone 16. Electrochemical potential is often not a simple, convenient or failsafe thing to measure in a battery. It may be the case that the potential that a ‘charged’ battery may be mistaken for an ‘uncharged’ battery simply cannot be reduced sufficiently to allow for shipping a drone 16 with an uncharged battery. In addition, as mentioned previously, the time for charging a rechargeable battery having adequate power for drone 16 could be on the order of an hour or more. Currently, fast recharging batteries of sufficient charge capacity are uneconomical for the ‘one-time-use’ or ‘several-time-use’ that would be typical for batteries used in drone 16.
In an embodiment, electrical components like the computer/processor 390, other circuits or electrical components such as coils 32, 34, signal generating circuit 40 and the signal transceivers 130, 132 may be battery powered while explosive elements like the detonator (not shown) for initiating detonating cord 350 to cause detonation of the shaped charges 340, are capacitor powered. Such an arrangement would take advantage of the possibility that some or all of the computer/processor 390, the circuit 40, the coils 32, 34, and the transceivers 130, 132 may benefit from a high density power supply having higher energy density, i.e., a battery, while initiating elements such as detonators typically benefit from a higher power density, i.e., capacitor/supercapacitor. A very important benefit for such an arrangement is that the battery is completely separate from the explosive materials, affording the potential to ship the drone 16 preloaded with a charged or uncharged battery. The power supply that is connected to the explosive materials, i.e., the capacitor/supercapacitor, may be very quickly charged immediately prior to dropping drone 16 into wellbore 50.
The present disclosure, in various embodiments, configurations and aspects, includes components, methods, processes, systems and/or apparatus substantially developed as depicted and described herein, including various embodiments, sub-combinations, and subsets thereof. Those of skill in the art will understand how to make and use the present disclosure after understanding the present disclosure. The present disclosure, in various embodiments, configurations and aspects, includes providing devices and processes in the absence of items not depicted and/or described herein or in various embodiments, configurations, or aspects hereof, including in the absence of such items as may have been used in previous devices or processes, e.g., for improving performance, achieving ease and/or reducing cost of implementation.
The phrases “at least one”, “one or more”, and “and/or” are open-ended expressions that are both conjunctive and disjunctive in operation. For example, each of the expressions “at least one of A, B and C”, “at least one of A, B, or C”, “one or more of A, B, and C”, “one or more of A, B, or C” and “A, B, and/or C” means A alone, B alone, C alone, A and B together, A and C together, B and C together, or A, B and C together.
In this specification and the claims that follow, reference will be made to a number of terms that have the following meanings. The terms “a” (or “an”) and “the” refer to one or more of that entity, thereby including plural referents unless the context clearly dictates otherwise. As such, the terms “a” (or “an”), “one or more” and “at least one” can be used interchangeably herein. Furthermore, references to “one embodiment”, “some embodiments”, “an embodiment” and the like are not intended to be interpreted as excluding the existence of additional embodiments that also incorporate the recited features. Approximating language, as used herein throughout the specification and claims, may be applied to modify any quantitative representation that could permissibly vary without resulting in a change in the basic function to which it is related. Accordingly, a value modified by a term such as “about” is not to be limited to the precise value specified. In some instances, the approximating language may correspond to the precision of an instrument for measuring the value. Terms such as “first,” “second,” “upper,” “lower” etc. are used to identify one element from another, and unless otherwise specified are not meant to refer to a particular order or number of elements.
As used herein, the terms “may” and “may be” indicate a possibility of an occurrence within a set of circumstances; a possession of a specified property, characteristic or function; and/or qualify another verb by expressing one or more of an ability, capability, or possibility associated with the qualified verb. Accordingly, usage of “may” and “may be” indicates that a modified term is apparently appropriate, capable, or suitable for an indicated capacity, function, or usage, while taking into account that in some circumstances the modified term may sometimes not be appropriate, capable, or suitable. For example, in some circumstances an event or capacity can be expected, while in other circumstances the event or capacity cannot occur—this distinction is captured by the terms “may” and “may be.”
As used in the claims, the word “comprises” and its grammatical variants logically also subtend and include phrases of varying and differing extent such as for example, but not limited thereto, “consisting essentially of” and “consisting of.” Where necessary, ranges have been supplied, and those ranges are inclusive of all sub-ranges therebetween. It is to be expected that variations in these ranges will suggest themselves to a practitioner having ordinary skill in the art and, where not already dedicated to the public, the appended claims should cover those variations.
The terms “determine”, “calculate” and “compute,” and variations thereof, as used herein, are used interchangeably and include any type of methodology, process, mathematical operation or technique.
The foregoing discussion of the present disclosure has been presented for purposes of illustration and description. The foregoing is not intended to limit the present disclosure to the form or forms disclosed herein. In the foregoing Detailed Description for example, various features of the present disclosure are grouped together in one or more embodiments, configurations, or aspects for the purpose of streamlining the disclosure. The features of the embodiments, configurations, or aspects of the present disclosure may be combined in alternate embodiments, configurations, or aspects other than those discussed above. This method of disclosure is not to be interpreted as reflecting an intention that the present disclosure requires more features than are expressly recited in each claim. Rather, as the following claims reflect, the claimed features lie in less than all features of a single foregoing disclosed embodiment, configuration, or aspect. Thus, the following claims are hereby incorporated into this Detailed Description, with each claim standing on its own as a separate embodiment of the present disclosure.
Advances in science and technology may make equivalents and substitutions possible that are not now contemplated by reason of the imprecision of language; these variations should be covered by the appended claims. This written description uses examples to disclose the method, machine and computer-readable medium, including the best mode, and also to enable any person of ordinary skill in the art to practice these, including making and using any devices or systems and performing any incorporated methods. The patentable scope thereof is defined by the claims, and may include other examples that occur to those of ordinary skill in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal language of the claims.
This application claims the benefit of U.S. Provisional Patent Application No. 62/719,816, filed Aug. 20, 2018, the entire contents of which is incorporated herein by reference.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/EP2019/072055 | 8/16/2019 | WO | 00 |
| Number | Date | Country | |
|---|---|---|---|
| 62719816 | Aug 2018 | US |
