Patent Application
20190060794
Not applicable.
Not applicable.
The present disclosure relates to a single, transportable separation and monitoring apparatus for efficiently separating spent materials recovered from oil and gas wells.
Spent materials are generated at essentially all oil and gas well sites. Spent materials are typically comprised of solids, liquids and gases. In typical oil and gas operations many separate pieces of equipment are brought in to be able to separate spent materials into the various solid, liquid and gaseous components.
Accordingly, there is a need for a single and transportable apparatus that can separate spent materials into the separate solid, liquid and gaseous components.
The present disclosure is directed toward a transportable separation apparatus for separating spent materials from oil and gas operations into a primarily solid component and a primarily liquid component. The transportable separation apparatus having a first separation area disposed on the transportable separation apparatus for receiving spent materials and beginning separation of the spent materials. The transportable separation apparatus designed to be connected to a vehicle to be pulled on commercial roadways. The transportable separation apparatus also includes a second separation area in fluid communication with the first separation area for further separation of the spent materials. The separation apparatus can further include an auger in fluid communication with the first separation area to remove the primarily solid component from the transportable separation apparatus.
The present disclosure is also directed towards a method for separating spent materials recovered from oil and gas wells. The method includes introducing spent materials recovered from an oil and gas well to the transportable separation apparatus described herein for separating the spent materials from oil and gas operations into a primarily solid component and a primarily liquid component. The method further includes separating the spent materials into a primarily liquid component and a primarily solid component.
The present disclosure relates to a single, transportable separation and monitoring apparatus 10 for efficiently separating spent materials recovered from oil and gas wells. The spent materials recovered from oil and gas wells can be comprised of a solid component, a liquid component and a gaseous component. The separation and monitoring apparatus 10 described herein can be supported and incorporated into a single transportable apparatus, such as a trailer with wheels and an attachment apparatus for connecting to a vehicle to be pulled or towed on commercial roadways. In another embodiment, the separation and monitoring apparatus 10 can be mounted on a skid that can be loaded and unloaded from a trailer with wheels.
As shown in
The first separation area 12 includes angled portions 24 that direct spent materials flowing into the first separation area 12 via the materials inlet 16 toward a lower opening 26 of an auger housing 28. The spent materials flowing into the first separation area 12 primarily consists of the liquid component and the solid component. The solid component settles to the lower portion of the first separation area 12 and into a lower portion 30 of the auger housing 28. An auger 32 is disposed in the auger housing 28 and drives the solid component upward in the auger housing 28 while permitting the liquid component to remain in the lower part of the auger housing 28 and in the first separation area 12. The solid component is removed from the auger housing 28 via an upper opening 34 disposed therein. The primary component of the solid component being removed by the auger 32 is sand. In one embodiment, the auger 32 and auger housing 28 are angled upwards out and away from the first separation area 12.
At a certain depth in the first separation area 12, the liquid component of the spent materials, which is typically less dense than the solid component, will rise above a spillway 36 and flow into the second separation area 14. The liquid component is primarily comprised of an oil portion and an aqueous portion. The second separation area 14 includes a first end 38 disposed adjacent to the first separation area 12 and/or the spillway 36, a second end 40 disposed on the opposite end of the second separation area 14, and weir elements 42 to separate the liquid component into the oil portion and the aqueous portion. The second separation area 14 can have multiple separation zones 44, which are created between the ends 38 and 40 and the weir elements 42 and between the weir elements 42 themselves.
In an exemplary embodiment, the liquid component flows over the spillway 36 and into a first separation zone 44a disposed between the first end 38 of the second separation area 14 and a first weir element 42a. The aqueous portion of the liquid component of the spent materials is denser than the oil portion and settles lower in the first separation zone 44a. Consequently, the oil portion settles above the aqueous portion and will eventually spill over the first weir element 42a into a second separation zone 44b when a sufficient amount of the liquid component enters the first separation zone 44a. The second separation zone 44b is defined as the area between the first weir element 42a and a second weir element 42b.
The oil portion entering the second separation zone 44b can still include some amount of an aqueous component and can be further separated into a second oil portion and a second aqueous portion. The second oil portion settles atop the second aqueous portion and the second oil portion can spill over into a third separation zone 44c wherein even further separation can occur whereby a third oil portion and a third aqueous portion are created. The third oil portion settles atop the third aqueous portion. The aqueous portion, the second aqueous portion and the third aqueous portion can be withdrawn from the first separation zone 44a, the second separation zone 44b and the third separation zone 44c of the second separation area 14, respectively. It should be understood and appreciated that the second separation area 14 can include as many separation zones 44 and weir elements 42 desirable to achieve the desired separation no oil and aqueous part of the liquid component.
One end of the separation and monitoring apparatus 10 can be a wheeled end 46 and the other end of the separation and monitoring apparatus 10 is a hitch end 48. The wheel end 46 includes a plurality of wheels 50 to facilitate transportation of the apparatus 10 on roadways. The hitch end 48 is the end of the separation and monitoring apparatus 10 that is attachable to a vehicle for transporting the separation and monitoring apparatus 10. In one embodiment, the auger 32 and the first separation area 12 are positioned adjacent to the wheeled end 46 of the separation and monitoring apparatus 10 and the second separation area 14 is positioned adjacent to the hitch end 48 of the separation and monitoring apparatus 10.
In one embodiment shown in
In yet another embodiment of the present disclosure, the separation and monitoring apparatus 10 includes water outlets 58a, 58b and 58c in fluid communication with the first, second and third separation zones 44a, 44b and 44c, respectively. The water outlets 58a, 58b and 58c can be conduits 60a, 60b and 60c that are in fluid communication with a pumping system 62 for withdrawing the aqueous portions from the first, second and third separation zones 44a, 44b and 44c. The aqueous portions removed from the separation zones 44 can be sent from the separation and monitoring apparatus 10 to various storage containers. In one embodiment, the water outlets 58a, 58b and 58c are disposed in the lower part of the separation zones 44 because of the aqueous portions being lower in the separation zones 44a, 44b and 44c. It should be understood that the pumping system 62 can be comprised of various components to facilitate its operation, such as pumps, piping, etc.
In yet another embodiment of the present disclosure, the separation and monitoring apparatus 10 includes a cleaning system 68 for cleaning the second separation area 14. The cleaning system 68 includes fluid outlets 70 for providing fluid under pressure to the separation zones 44 to flush out any fluid or debris in the separation zones 44. In one embodiment, the outlets 70 are disposed in an upper part of the separation zones 44 to allow flushing fluid to better affect the cleaning of the separation zones 44. The outlets 70 can be designed such that the flushing fluid is dispersed laterally upon exiting the outlets 70. Flushing fluid can be provided to the cleaning system 68 and outlets 70 via a pumping system. It should be understood and appreciated that the pumping system used for the cleaning system 68 can be the pumping system 62 or it can be a separate system and can include various components necessary to affect the operation of the cleaning system 68.
The separation and monitoring apparatus 10 can also include an oil outlet 64 disposed in the second separation area 14 to remove any of the oil portions from the second separation area 14. In one embodiment, the oil outlet 64 can be vertically disposed piping 72 having an opening 74 disposed at the top to allow the oil portion to be skimmed off the top. The oil outlet 64 can be disposed in any of the separation zones 44. In one embodiment, the oil outlet 64 can be disposed in the first separation zone 44a. The pump system 62 can incorporate any necessary components, such as pumps, piping, etc., to facilitate the removal of the oil portion from the separation and monitoring apparatus 10 and transport the oil portion to a storage container or tank.
In a further embodiment of the present disclosure, the separation and monitoring apparatus 10 can include fluid level measuring devices 76 for determining the level of the fluid in the second separation area 14. More specifically, the separation and monitoring apparatus 10 can include a fluid level measuring device 76a for determining the level of the fluid in the first separation zone 44a, a second fluid level measuring device 76b for determining the level of the fluid in the second separation zone 44b and a third fluid level measuring device 76c for determining the level of the fluid in the third separation zone 44c. The fluid level measuring device 76 can be any device known in the art for measuring the level of fluid. In one embodiment, the fluid level measuring device 76 can use sonar technology to determine the fluid level. The fluid level measuring device 76 can be disposed in any location on the separation and monitoring apparatus 10 such that the level of the fluid in the separation zones 44 can be determined. In one embodiment, the fluid level measuring devices 76 can be located in the top, at the top or even disposed through the top of the second separation area 14.
The pumping system 62 can include flow measuring devices (or multiple different components) to determine the amount of aqueous fluid being removed from the second separation area 14. The amount of aqueous fluid being removed from the second separation area 14 and the levels of fluid in the separation zones 44 determined by the fluid level measuring devices 76 can be used to determine the amount of aqueous fluid (or water) that has been removed from a well in real-time. It should be understood and appreciated that any devices known in the art for measuring fluid flow can be used to determine the amount of aqueous fluid flowing out of the second separation area 14.
Another embodiment so the present disclosure is directed toward a method of using the separation and monitoring apparatus 10 to separate the spent drilling materials into separate components and to measure the amount of aqueous fluid (or water) removed from a well.
From the above description, it is clear that the present disclosure is well adapted to carry out the objectives and to attain the advantages mentioned herein as well as those inherent in the disclosure. While presently preferred embodiments have been described herein, it will be understood that numerous changes may be made which will readily suggest themselves to those skilled in the art and which are accomplished within the spirit of the disclosure and claims.
