US20220403727A1 - Downhole production system with flow diverter for gas separation - Google Patents
Downhole production system with flow diverter for gas separation Download PDFInfo
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- US20220403727A1 US20220403727A1 US17/843,148 US202217843148A US2022403727A1 US 20220403727 A1 US20220403727 A1 US 20220403727A1 US 202217843148 A US202217843148 A US 202217843148A US 2022403727 A1 US2022403727 A1 US 2022403727A1
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Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
- E21B43/38—Arrangements for separating materials produced by the well in the well
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/126—Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
Definitions
- the present disclosure relates to mitigating downhole pump gas interference during hydrocarbon production.
- Reservoir fluids often contain entrained gases and solids.
- the presence of such gaseous material hinders production by contributing to sluggish flow, and interfering with pump operation.
- the presence of solids interferes with pump operation, including contributing to erosion of mechanical components.
- Separators are provided help remedy or mitigate downhole pump gas interference during hydrocarbon production.
- separators often occupy relatively significant amounts of space within a wellbore, rendering efficient separation of gaseous material that is entrained within the reservoir fluid difficult.
- Some separators are complex structures and are associated with increased material and manufacturing costs. Accordingly, efficient and cost effective separation of gaseous material that is entrained within the reservoir fluid is desirable.
- a reservoir production system disposed within a wellbore that is lined with a wellbore string, comprising:
- a reservoir production system disposed within a wellbore that is lined with a wellbore string, comprising:
- a downhole-deployable reservoir production system precursor deployable within a wellbore lined with a wellbore string for establishing a reservoir production system within the wellbore, comprising:
- an uphole counterpart including:
- a downhole counterpart including:
- a top hold down pump comprising:
- FIG. 1 is a schematic illustration of an embodiment of a reservoir production system, of the present disclosure, disposed within a wellbore;
- FIG. 2 is a schematic illustration of an embodiment of a precursor to the system illustrated in FIG. 1 , with the reservoir fluid conductor connected to the flow diverter;
- FIG. 3 is a perspective view, partly cut-away, of a section of a barrel of a top hold down pump of an embodiment of the present disclosure
- FIG. 4 is a perspective view, partly cut-away, of a section of a reservoir fluid conductor of an embodiment of the present disclosure.
- FIG. 5 is a schematic illustration of an embodiment of a precursor to the system illustrated in FIGS. 1 and 2 , with the reservoir fluid conductor connected to the flow diverter;
- a system 10 for producing hydrocarbons from an oil reservoir within a subterranean formation 100 there is provided a system 10 for producing hydrocarbons from an oil reservoir within a subterranean formation 100 .
- a wellbore 102 of a subterranean formation can be straight, curved or branched.
- the wellbore can have various wellbore sections.
- a wellbore section is an axial length of a wellbore 102 .
- a wellbore section can be characterized as “vertical” or “horizontal” even though the actual axial orientation can vary from true vertical or true horizontal, and even though the axial path can tend to “corkscrew” or otherwise vary.
- the central longitudinal axis of the passage of a horizontal section is disposed along an axis that is between about 70 and about 110 degrees relative to the vertical, while the central longitudinal axis of the passage of a vertical section is disposed along an axis that is less than about 20 degrees from the vertical “V”, and a transition section is disposed between the horizontal and vertical sections.
- Reservoir fluid is fluid that is contained within an oil reservoir.
- Reservoir fluid may be liquid material, gaseous material, or a mixture of liquid material and gaseous material.
- the reservoir fluid includes water and hydrocarbons, such as oil, natural gas condensates, or any combination thereof.
- Reservoir fluid may also include fluids injected into the reservoir for effecting stimulation of resident fluids within the reservoir.
- a wellbore string 200 is emplaced within the wellbore 102 for stabilizing the subterranean formation 100 .
- the wellbore string 200 also contributes to effecting fluidic isolation of one zone within the subterranean formation 100 from another zone within the subterranean formation 100 .
- the fluid productive portion of the wellbore 102 may be completed either as a cased-hole completion or an open-hole completion.
- a wellbore string 200 in the form of a wellbore casing that includes one or more casing strings, each of which is positioned within the wellbore 102 , having one end extending from the wellhead 106 , is provided.
- each casing string is defined by jointed segments of pipe. The jointed segments of pipe typically have threaded connections.
- the wellbore 102 is disposed in flow communication (such as through perforations provided within the installed casing or liner, or by virtue of the open hole configuration of the completion), or is selectively disposable into flow communication (such as by perforating the installed casing, or by actuating a valve to effect opening of a port), with the subterranean formation 100 .
- the wellbore 102 is disposed for receiving reservoir fluid flow from the subterranean formation 100 , with effect that the system 10 receives the reservoir fluid.
- the wellbore casing is set short of total depth.
- the liner string can be made from the same material as the casing string, but, unlike the casing string, the liner string does not extend back to the wellhead 106 .
- Cement may be provided within the annular region between the liner string and the oil reservoir for effecting zonal isolation (see below), but is not in all cases.
- this liner is perforated to effect flow communication between the reservoir and the wellbore.
- the production tubing string may be engaged or stung into the liner string, thereby providing a fluid passage for conducting the produced reservoir fluid to the wellhead 106 .
- An open-hole completion is established by drilling down to the producing formation, and then lining the wellbore (such as, for example, with a wellbore string 200 ). The wellbore is then drilled through the producing formation, and the bottom of the wellbore is left open (i.e. uncased), to effect flow communication between the reservoir and the wellbore.
- the system 10 receives, via the wellbore 102 , the reservoir fluid flow from the subterranean formation 100 .
- the wellbore 102 is disposed in flow communication (such as through perforations provided within the installed casing or liner, or by virtue of the open hole configuration of the completion), or is selectively disposable into flow communication (such as by perforating the installed casing, or by actuating a valve to effect opening of a port), with the subterranean formation 100 .
- a reservoir fluid-receiving zone 402 of the wellbore 102 is disposed for receiving reservoir fluid flow from the subterranean formation 100 , with effect that the system 10 receives the reservoir fluid.
- the system 10 includes a production system 300 disposed within the wellbore 102 .
- the production system 300 includes a gas-depleted reservoir fluid production system 400 , a pump 600 , and a gas-depleted reservoir fluid conductor 500 .
- the gas-depleted reservoir fluid conductor 500 is suspended within the wellbore 102 from the wellhead 106 disposed at the surface 104 .
- the gas-depleted reservoir fluid production system 400 is fluidly coupled to the pump 600 for supplying a gas-depleted reservoir fluid to the gas-depleted reservoir fluid pump 600 .
- the pump 600 is configured for pressurizing the gas-depleted reservoir fluid received from the gas-depleted reservoir fluid production system 400 , with effected that pressurized gas-depleted reservoir fluid is conducted to the surface 104 via the gas-depleted reservoir fluid conductor 500 .
- the barrel 602 includes a flow passage-defining portion 604 and a reinforcing layer 606 .
- the flow passage-defining portion 604 includes an inner surface 604 A and an outer surface 604 B.
- the inner surface 604 A defines the fluid passage 608 of the barrel 602 , and, in this respect, defines a portion of the gas-depleted reservoir fluid conductor 500 .
- the reinforcing layer 606 is coupled to the outer surface 604 B such that the reinforcing layer 606 overlies at least a portion of the outer surface 604 B.
- the flow passage-defining portion 604 has a perimeter defined by the outer surface 604 B, and the overlying is with effect that the reinforcing layer 606 extends about the entirety of the perimeter of the flow passage-defining portion 604 .
- the reinforcing layer 606 functions to reinforce the strength of the flow passage-defining portion 604 , thereby enabling use of a larger sized pump 600 .
- the reinforcing layer 606 and the outer surface 604 B are co-operatively configured such that the coupling of the reinforcing layer 606 to the outer surface 604 B includes adsorption of the reinforcing layer 606 to the outer surface 604 B.
- the adsorption includes adhesion.
- the coupling of the reinforcing layer 606 to the outer surface 604 B includes chemical bonding between the reinforcing layer 606 and the outer surface 604 B.
- the reinforcing layer 606 includes a plurality of continuous fibers.
- Suitable continuous fibers include glass fibers, carbon fibers, and aramid fibers.
- the continuous fibers are helically wound about the flow passage-defining portion 604 with respect to a longitudinal axis 604 X of the flow passage-defining portion 604 .
- helical winding is at a winding angle of from 40 degrees to 60 degrees.
- the continuous fibers are embedded within a matrix, such as, for example, a polymeric matrix.
- the reinforcing layer 606 includes continuous fiber reinforced thermoplastic (“CFRT”) material.
- CFRT continuous fiber reinforced thermoplastic
- Suitable continuous fibers include glass fibers, carbon fibers, and aramid fibers.
- Suitable thermoplastic materials include polyethylene, polypropylene, nylon, and acrylonitrile butadiene styrene (“ABS”).
- the reinforcing layer 606 is in the form of a tape of CFRT material.
- the tape is helically wound about the flow passage-defining portion 604 with respect to a longitudinal axis 604 X of the flow passage-defining portion 604 .
- helical winding is at a winding angle of from 40 degrees to 60 degrees.
- the reinforcing layer 606 is a first reinforcing layer 606 which includes an outer surface 606 A
- the barrel 602 further includes a second reinforcing layer 608 .
- the second reinforcing layer 608 is coupled to the first reinforcing layer 606 such that the second reinforcing layer 608 overlies at least a portion of the outer surface 606 A of the first reinforcing layer 606 .
- the first reinforcing layer 606 has a perimeter defined by the outer surface 606 A, and the overlying is with effect that the second reinforcing layer 608 extends about the entirety of the perimeter of the first reinforcing layer 606 .
- the second reinforcing layer 608 functions to further reinforce the strength of the flow passage-defining portion 604 .
- the second reinforcing layer 608 and the outer surface 606 A are co-operatively configured such that the coupling of the second reinforcing layer 608 to the outer surface 606 A includes adsorption of the second reinforcing layer 608 to the outer surface 606 A.
- the adsorption includes adhesion.
- the coupling of the second reinforcing layer 608 to the outer surface 606 A includes chemical bonding between the second reinforcing layer 608 and the outer surface 606 A.
- the second reinforcing layer 608 includes a plurality of continuous fibers.
- Suitable continuous fibers include glass fibers, carbon fibers, and aramid fibers.
- the continuous fibers are helically wound about the flow passage-defining portion 604 with respect to a longitudinal axis 604 X of the flow passage-defining portion 604 .
- helical winding is at a winding angle of from 40 degrees to 60 degrees.
- the continuous fibers are embedded within a matrix, such as, for example, a polymeric matrix.
- the second reinforcing layer 608 includes continuous fiber reinforced thermoplastic (“CFRT”) material.
- CFRT continuous fiber reinforced thermoplastic
- Suitable continuous fibers include glass fibers, carbon fibers, and aramid fibers.
- Suitable thermoplastic materials include polyethylene, polypropylene, nylon, and acrylonitrile butadiene styrene (“ABS”).
- the first reinforcing layer 606 is in the form of a tape of CFRT material
- the second reinforcing layer 608 is in the form of a tape of CFRT material.
- the tape of the first reinforcing layer 606 is helically wound about the flow passage-defining portion 605 with respect to the longitudinal axis 604 X of the flow passage-defining portion 604 , and, in some of these embodiments, for example, helical winding is at a winding angle of from 40 degrees to 60 degrees.
- the tape of the second reinforcing layer 608 is helically wound about the first reinforcing layer 606 with respect to the longitudinal axis 604 X of the flow passage-defining portion 604 , and, in some of these embodiments, for example, helical winding is at a winding angle of from 40 degrees to 60 degrees. In some embodiments, for example, the winding of the tape of the first reinforcing layer 606 is in a direction that is opposite to the direction of the winding of the tape of the second reinforcing layer 608 .
- the winding of the tape of the first reinforcing layer 606 is in one of a clockwise or counterclockwise direction
- the winding of the tape of the second reinforcing layer 608 is in the other one of a clockwise or counterclockwise direction.
- an outer sheath 610 overlies the one or more reinforcing layers 606 , 608 for enclosing the one or more reinforcing layers 606 , 608 and the flow passage-defining portion 604 .
- the outer sheath 610 protects the enclosed materials from degradation, such as, for example, degradation in response to abrasion, chemical conversion, or dissolution.
- the outer sheath 610 functions to hold the enclosed materials in place.
- the system 10 is configured for producing reservoir fluid while, amongst other things, mitigating gas lock within the pump 600 .
- the gas-depleted reservoir fluid production system 400 co-operates with the wellbore string 200 to define a flow diverter 400 A.
- the flow diverter 400 A defines a reservoir fluid flow passage configuration 404 , a separation zone 406 , a downwardly-conducting flow passage configuration 422 , and an upwardly-conducting flow passage configuration 407 .
- the separation zone 406 is disposed within a vertical portion of the wellbore 102 .
- the separation zone 406 is disposed vertically above (and uphole relative to) the reservoir fluid-receiving zone 402 , and vertically below (and downhole relative to) the wellhead 106 .
- the reservoir fluid-receiving zone 402 , the reservoir fluid flow passage configuration 404 , the separation zone 406 , the downwardly-conducting flow passage configuration 422 , and the upwardly-conducting flow passage configuration 407 are co-operatively configured such that:
- the gas-depleted reservoir fluid production system 400 includes a reservoir fluid flow conductor 416 , defining a reservoir fluid flow conducting passage 441 and a sealed interface effector 418 (such as, for example, a packer). At least a portion of the reservoir fluid flow passage configuration 404 is defined by the reservoir fluid flow conducting passage 416 A.
- the sealed interface effector 418 is mounted to the reservoir fluid flow conductor 416 such that the reservoir fluid flow conductor 416 is sealingly engaged to the wellbore string 200 via the sealed interface effector 418 .
- At least a portion of the reservoir fluid flow conductor 416 is a velocity string 420 .
- the at least a portion of the reservoir fluid flow conductor 416 is the entirety of the reservoir fluid flow conductor 416 , such that, in such embodiments, the velocity string is the reservoir fluid flow conductor 416 .
- the sealing engagement of the reservoir fluid flow conductor 416 to the wellbore string 200 is a sealing engagement of the velocity string 420 to the wellbore string.
- the sealed interface effector 418 is mounted to the velocity string 420 .
- the velocity string 420 is characterized by a maximum cross-sectional flow area, and the maximum cross-sectional flow area is smaller than the minimum cross-sectional flow area of the reservoir fluid-receiving space 402 .
- the ratio of the minimum cross-sectional flow area of the reservoir fluid-receiving space 402 to the maximum cross-sectional flow area of the reservoir fluid flow passage configuration 404 , defined by the velocity string 420 is at least 1.5.
- At least a portion of the reservoir fluid flow conductor 416 is a velocity string 420
- at least a portion of the velocity string 420 is disposed within a heel portion 108 of the wellbore 102 .
- the velocity string 420 extends through the heel portion 108 .
- the material of construction of the reservoir fluid conductor 416 includes polymeric material, such as, for example, polypropylene.
- the reservoir fluid conductor 416 is formed from polymeric material, such as, for example, polypropylene.
- the reinforcing layer 4162 and the outer surface 4161 B are co-operatively configured such that the coupling of the reinforcing layer 4162 to the outer surface 4161 B includes adsorption of the reinforcing layer 4162 to the outer surface 4161 B.
- the adsorption includes adhesion.
- the coupling of the reinforcing layer 4162 to the outer surface 4161 B includes chemical bonding between the reinforcing layer 4162 and the outer surface 4161 B.
- the material of construction of the flow passage-defining portion 4161 includes polymeric material, such as, for example, polypropylene.
- the flow passage-defining portion 4161 is formed from polymeric material, such as, for example, polypropylene.
- the reinforcing layer 4162 includes continuous fiber reinforced thermoplastic (“CFRT”) material.
- CFRT continuous fiber reinforced thermoplastic
- Suitable continuous fibers include glass fibers, carbon fibers, and aramid fibers.
- Suitable thermoplastic materials include polyethylene, polypropylene, nylon, and acrylonitrile butadiene styrene (“ABS”).
- the reinforcing layer 4162 is in the form of a tape of CFRT material.
- the tape is helically wound about the flow passage-defining portion 4161 with respect to a longitudinal axis 4161 X of the flow passage-defining portion 4161 .
- helical winding is at a winding angle of from 40 degrees to 60 degrees.
- the reinforcing layer 4162 is a first reinforcing layer 4162 which includes an outer surface 4162 A
- the reservoir fluid conductor 416 further includes a second reinforcing layer 4164 .
- the second reinforcing layer 4164 is coupled to the first reinforcing layer 4162 such that the second reinforcing layer 4164 overlies at least a portion of the outer surface 4162 A of the first reinforcing layer 4162 .
- the first reinforcing layer 4162 has a perimeter defined by the outer surface 4162 A, and the overlying is with effect that the second reinforcing layer 4164 extends about the entirety of the perimeter of the first reinforcing layer 4162 .
- the reinforcing layer 4164 functions to further reinforce the strength of the flow passage-defining portion 4161 .
- the second reinforcing layer 4164 and the outer surface 4162 A are co-operatively configured such that the coupling of the second reinforcing layer 4164 to the outer surface 4162 A includes adsorption of the second reinforcing layer 4164 to the outer surface 4162 A.
- the adsorption includes adhesion.
- the coupling of the second reinforcing layer 4164 to the outer surface 4162 A includes chemical bonding between the second reinforcing layer 4162 and the outer surface 4162 A.
- the second reinforcing layer 4164 includes a plurality of continuous fibers.
- Suitable continuous fibers include glass fibers, carbon fibers, and aramid fibers.
- the continuous fibers are helically wound about the flow passage-defining portion 4161 with respect to a longitudinal axis 4161 X of the flow passage-defining portion 4161 .
- helical winding is at a winding angle of from 40 degrees to 60 degrees.
- the continuous fibers are embedded within a matrix, such as, for example, a polymeric matrix.
- the second reinforcing layer 4164 is in the form of a tape of CFRT material.
- the tape is helically wound about the flow passage-defining portion 4161 with respect to a longitudinal axis 4161 X of the flow passage-defining portion 4161 .
- helical winding is at a winding angle of from 40 degrees to 60 degrees.
- the first reinforcing layer 4162 is in the form of a tape of CFRT material
- the second reinforcing layer 4164 is in the form of a tape of CFRT material.
- the tape of the first reinforcing layer 4162 is helically wound about the flow passage-defining portion 4161 with respect to the longitudinal axis 4161 X of the flow passage-defining portion 4161 , and, in some of these embodiments, for example, helical winding is at a winding angle of from 40 degrees to 60 degrees.
- the tape of the second reinforcing layer 4164 is helically wound about the first reinforcing layer 4162 with respect to the longitudinal axis 4161 X of the flow passage-defining portion 4161 , and, in some of these embodiments, for example, helical winding is at a winding angle of from 40 degrees to 60 degrees. In some embodiments, for example, the winding of the tape of the first reinforcing layer 4162 is in a direction that is opposite to the direction of the winding of the tape of the second reinforcing layer 4164 .
- the winding of the tape of the first reinforcing layer 4162 is in one of a clockwise or counterclockwise direction
- the winding of the tape of the second reinforcing layer 4164 is in the other one of a clockwise or counterclockwise direction.
- an outer sheath 4166 overlies the one or more reinforcing layers 4162 , 4164 for enclosing the one or more reinforcing layers 4162 , 4164 and the flow passage-defining portion 4161 .
- the outer sheath 4166 protects the enclosed materials from degradation, such as, for example, degradation in response to abrasion, chemical conversion, or dissolution.
- the outer sheath 4166 functions to hold the enclosed materials in place.
- gas-depleted reservoir fluid production system 400 further includes a gas separator 408 , and the gas separator 400 defines the downwardly-conducting flow passage configuration 422 and the upwardly-conducting flow passage configuration 407 .
- the gas separator 408 and the wellbore string 200 are co-operatively configured such that an intermediate passage 426 is defined between the gas separator 408 and the wellbore string 200 .
- the reservoir fluid flow conductor 416 includes a flow receiving communicator 440 (such as, for example, an inlet port), a flow discharging communicator 442 (such as, for example, an outlet port), and a reservoir fluid flow conducting passage 441 . At least a portion of the reservoir fluid flow passage configuration 404 is defined by the reservoir fluid flow conducting passage 441 .
- the flow receiving communicator 440 is disposed for receiving the reservoir fluid from the reservoir fluid-receiving zone 402 such that the conducting of the reservoir fluid, by the reservoir fluid flow conducting passage 441 , is effected while the reservoir fluid is being received by the flow receiving communicator 440 from the reservoir fluid-receiving zone 402 .
- the reservoir fluid flow conducting passage 441 is effective for conducting the reservoir fluid received by the flow receiving communicator 440 to the flow discharging communicator 442 .
- the flow discharging communicator 442 is effective for discharging the reservoir fluid from the reservoir fluid flow conductor 416 .
- the flow discharging communicator 442 is disposed in flow communication with the separation zone 406 via the intermediate passage 426 such that the discharging reservoir fluid is conducted to the separation zone 406 via the intermediate flow passage 426 .
- the reservoir fluid flow conductor 416 , the sealed interface 418 , and the intermediate passage 426 are co-operatively configured such that, while the reservoir fluid flow is being received within the reservoir fluid flow receiving zone 402 , the reservoir fluid flow is conducted from the reservoir fluid flow receiving zone 402 to the separation zone 406 via at least the reservoir fluid flow conducting passage 441 and the intermediate passage 426 , such that the reservoir fluid flow passage configuration 404 includes the reservoir fluid flow conducting passage 441 and the intermediate passage 426 .
- the gas separator 408 defines a gas-depleted reservoir fluid collector 411 .
- the collector 411 defines a shroud 424 , and the downwardly-conducting flow passage configuration 422 and the upwardly-conducting flow passage configuration 407 are disposed within the shroud 424 .
- the shroud 424 separates the downwardly-conducting flow passage configuration 422 and the upwardly-conducting flow passage configuration 407 from the intermediate passage 426 .
- the shroud 424 is defined by a vertically extending wall 428 projecting from a base 430 , such that an opening 432 is defined by an upper edge 434 of the wall 428 , for receiving the downwardly flow of the separated gas-depleted reservoir fluid, and the wall 428 and the base 430 co-operate to define a gas-depleted reservoir fluid collection space 436 , which defines the downwardly-conducting flow conductor configuration 422 , for receiving the downwardly-flowing gas-depleted reservoir fluid flow, and diverting such downwardly-flowing gas-depleted reservoir fluid flow such that the upwardly-flowing gas-depleted reservoir fluid flow is obtained and conducted via the upwardly-conducting flow conductor configuration 407 , which is defined by a conduit 407 A, to the pump 600 .
- the gas separator 408 is disposed above the flow discharging communicator 442 , such that a bubble coalescent zone 444 is defined between the flow discharging communicator 442 and the flow diverter 400 A.
- the minimum spacing distance from the flow discharging communicator 442 to the gas separator 408 is at least five (5) feet, such as, for example, at least ten (10) feet, such as, for example, at least 20 feet, such as, for example, at least 30 feet.
- the minimum spacing distance from the flow discharging communicator 442 to the intermediate passage is at least five (5) feet, such as, for example, at least ten (10) feet, such as, for example, at least 20 feet, such as, for example, at least 30 feet.
- the minimum cross-sectional flow area of the bubble coalescent zone 444 is greater than the maximum cross-sectional flow area of the reservoir fluid conducting passage portion 404 A of the reservoir fluid conductor 416 (such as, for example, the velocity string 420 ).
- the ratio, of the minimum cross-sectional flow area of the bubble coalescent zone 444 to the maximum cross-sectional flow area of the reservoir fluid conducting passage portion 404 A of the reservoir fluid conductor 416 is at least 1 . 5 .
- the bubble coalescent zone 444 is configured to reduce the velocity of the reservoir fluid flow being discharged from the reservoir fluid conductor 416 , and mitigate turbulent flow conditions, so as to promote bubble coalescence, which facilitates the separation within the separation zone 404 .
- the conducting of the reservoir fluid from the reservoir fluid-receiving space 402 to the separation zone 406 is effected via at least the reservoir fluid flow conducting passage 441 of the reservoir fluid conductor 416 (such as, for example, the velocity string 420 ), the bubble coalescent zone 444 , and the intermediate space 426 .
- a gas-depleted reservoir fluid production system precursor 401 is deployed within the wellbore.
- the gas-depleted reservoir fluid production system precursor 401 includes an uphole counterpart 401 A, a downhole counterpart 401 B, and degradable material 401 C.
- the uphole counterpart 401 A, the downhole counterpart 401 B, and the degradable material 401 C are co-operatively configured such that the uphole counterpart 401 A is connected to the downhole counterpart 401 B via a connection, and, while the gas-depleted reservoir fluid production system precursor 401 is disposed within the wellbore 100 , the connection is defeatable in response to degradation of the degradable material, with effect that the gas-depleted reservoir fluid production system 400 is obtained within the wellbore.
- the connection is via degradable pins.
- the connection, via which the uphole counterpart 401 A is connected to the downhole counterpart 401 B is a connection between the gas separator 408 and the reservoir fluid flow conductor 416 .
- the degradable material is degradable in response to chemical conversion of at least a portion of the degradable material, such as, for example, chemical conversion stimulated in response to interaction with a chemical agent.
- the degradable material is degradable in response to dissolution of at least a portion of the degradable material, such as, for example, dissolution stimulated in response to interaction with a dissolution agent.
- the degradable material is degradable in response to disintegration of at least a portion of the degradable material, such as, for example, disintegration stimulated in response to application of a stimulus, such as one or more of a mechanical stimulus, a sonic stimulus, or a light stimulus.
- the degradable material is degradable in response to contacting with wellbore fluids.
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Abstract
There is provided a reservoir fluid production system, deployable within a wellbore, whose components are manufactured from polymeric materials, such as, for example, continuous fibers.
Description
- The present disclosure relates to mitigating downhole pump gas interference during hydrocarbon production.
- Reservoir fluids often contain entrained gases and solids. In producing reservoir fluids containing a relatively substantial fraction of gaseous material, the presence of such gaseous material hinders production by contributing to sluggish flow, and interfering with pump operation. As well, the presence of solids interferes with pump operation, including contributing to erosion of mechanical components.
- Separators are provided help remedy or mitigate downhole pump gas interference during hydrocarbon production. However, separators often occupy relatively significant amounts of space within a wellbore, rendering efficient separation of gaseous material that is entrained within the reservoir fluid difficult. Some separators are complex structures and are associated with increased material and manufacturing costs. Accordingly, efficient and cost effective separation of gaseous material that is entrained within the reservoir fluid is desirable.
- In one aspect there is provided a reservoir production system, disposed within a wellbore that is lined with a wellbore string, comprising:
- a gas separator;
- a pump; and
- a gas-depleted reservoir fluid conductor;
- wherein:
-
- the gas separator is fluidly coupled to the gas-depleted reservoir fluid conductor for supplying a gas-depleted reservoir fluid to the gas-depleted reservoir fluid conductor;
- the gas-depleted reservoir fluid conductor includes a fluid conductor portion that is defined by the pump;
- the pump is configured for pressurizing the gas-depleted reservoir fluid received from the gas separator, with effected that pressurized gas-depleted reservoir fluid is conducted to the surface via the gas-depleted reservoir fluid conductor;
- the gas separator and the wellbore string are co-operatively configured such that there is established, within the wellbore, a reservoir fluid-receiving zone, a reservoir fluid-conducting passage, a separation zone, a gas-depleted reservoir fluid-conducting passage, and a liquid-depleted reservoir fluid-conducting passage;
- the separation zone is disposed within a vertical portion of the wellbore and is disposed above the reservoir fluid-receiving zone;
- the liquid-depleted reservoir fluid-conducting passage is disposed above the separation zone and extends to the surface;
- the gas separator includes a flow diverter;
- the flow diverter separates the reservoir fluid-conducting passage from the gas-depleted reservoir fluid-conducting passage;
- the gas separator, the pump, and the gas-depleted reservoir fluid conductor are further co-operatively configured such that:
- while the reservoir fluid is emplaced within the reservoir fluid-receiving zone, the reservoir fluid-conducting passage is disposed for conducting the reservoir fluid upwardly as a flow from the reservoir fluid receiving zone to the separation zone;
- while the reservoir fluid flow is being conducted by the reservoir fluid-conducted passage and becoming emplaced within the separation zone, the reservoir fluid flow is separated into a gas-depleted reservoir fluid flow and a liquid-depleted reservoir fluid flow in response to at least buoyancy forces, with effect that: (i) a downwardly flow of the gas-depleted reservoir fluid, from the separation zone, is established, and (ii) an upwardly flow of the liquid-depleted reservoir fluid, from the separation zone, is established;
- while the gas-depleted reservoir fluid flow is being separated from the reservoir fluid flow within the separation zone, the gas-depleted reservoir fluid flow is received and diverted by the flow diverter to the gas-depleted reservoir fluid conductor for conduction to the surface; and
- while the liquid-depleted reservoir fluid flow is being separated from the reservoir fluid flow within the separation zone and is being flowed upwardly from the separation zone, the liquid-depleted reservoir fluid is conducted to the surface via the liquid-depleted reservoir fluid-conducting passage;
- the gas separator further includes:
- a reservoir fluid conductor; and
- a sealed interface effector;
- at least a portion of the reservoir fluid-conducting passage is defined within the reservoir fluid conductor;
- the sealed interface effector is mounted to the reservoir fluid conductor such that the reservoir fluid conductor is sealingly engaged to the wellbore string via the sealed interface effector;
- the material of construction of the reservoir fluid conductor includes polymeric material; and
- the sealed interface effector includes a swellable packer.
- In another aspect there is provided a reservoir production system, disposed within a wellbore that is lined with a wellbore string, comprising:
- a gas separator;
- a pump; and
- a gas-depleted reservoir fluid conductor;
- wherein:
-
- the gas separator is fluidly coupled to the gas-depleted reservoir fluid conductor for supplying a gas-depleted reservoir fluid to the gas-depleted reservoir fluid conductor;
- the gas-depleted reservoir fluid conductor includes a fluid conductor portion that is defined by the pump;
- the pump is configured for pressurizing the gas-depleted reservoir fluid received from the gas separator, with effected that pressurized gas-depleted reservoir fluid is conducted to the surface via the gas-depleted reservoir fluid conductor;
- the gas separator and the wellbore string are co-operatively configured such that there is established, within the wellbore, a reservoir fluid-receiving zone, a reservoir fluid-conducting passage, a separation zone, a gas-depleted reservoir fluid-conducting passage, and a liquid-depleted reservoir fluid-conducting passage;
- the separation zone is disposed within a vertical portion of the wellbore and is disposed above the reservoir fluid-receiving zone;
- the liquid-depleted reservoir fluid-conducting passage is disposed above the separation zone and extends to the surface;
- the gas separator includes a flow diverter;
- the flow diverter separates the reservoir fluid-conducting passage from the gas-depleted reservoir fluid-conducting passage;
- the gas separator, the pump, and the gas-depleted reservoir fluid conductor are further co-operatively configured such that:
- while the reservoir fluid is emplaced within the reservoir fluid-receiving zone, the reservoir fluid-conducting passage is disposed for conducting the reservoir fluid upwardly as a flow from the reservoir fluid receiving zone to the separation zone;
- while the reservoir fluid flow is being conducted by the reservoir fluid-conducted passage and becoming emplaced within the separation zone, the reservoir fluid flow is separated into a gas-depleted reservoir fluid flow and a liquid-depleted reservoir fluid flow in response to at least buoyancy forces, with effect that: (i) a downwardly flow of the gas-depleted reservoir fluid, from the separation zone, is established, and (ii) an upwardly flow of the liquid-depleted reservoir fluid, from the separation zone, is established;
- while the gas-depleted reservoir fluid flow is being separated from the reservoir fluid flow within the separation zone, the gas-depleted reservoir fluid flow is received and diverted by the flow diverter to the gas-depleted reservoir fluid conductor for conduction to the surface; and
- while the liquid-depleted reservoir fluid flow is being separated from the reservoir fluid flow within the separation zone and is being flowed upwardly from the separation zone, the liquid-depleted reservoir fluid is conducted to the surface via the liquid-depleted reservoir fluid-conducting passage;
- the gas separator further includes:
- a reservoir fluid conductor; and
- a sealed interface effector;
- at least a portion of the reservoir fluid-conducting passage is defined within the reservoir fluid conductor;
- the sealed interface effector is mounted to the reservoir fluid conductor such that the reservoir fluid conductor is sealingly engaged to the wellbore string via the sealed interface effector;
- the reservoir fluid conductor includes a flow passage-defining portion and a reinforcing layer;
- the flow passage-defining portion includes an inner surface and an outer surface;
- the inner surface defines the reservoir fluid conductor flow passage of the reservoir fluid conductor;
- the reinforcing layer is coupled to the outer surface such that the reinforcing layer overlies at least a portion of the outer surface;
- the material of construction of the flow passage-defining portion includes polymeric material; and
- the reinforcing layer includes a plurality of continuous fibers.
- In another aspect there is provided a downhole-deployable reservoir production system precursor, deployable within a wellbore lined with a wellbore string for establishing a reservoir production system within the wellbore, comprising:
- an uphole counterpart including:
-
- a flow diverter;
- a pump; and
- a gas-depleted reservoir fluid conductor;
- and
- a downhole counterpart including:
-
- a reservoir fluid conductor including:
- a flow receiving communicator;
- a flow discharging communicator; and
- a reservoir fluid conductor flow passage;
- and
- a sealed interface effector;
- a reservoir fluid conductor including:
- and
- degradable material;
- wherein:
-
- the uphole counterpart, the downhole counterpart, and the degradable material are co-operatively configured such that the uphole counterpart is connected to the downhole counterpart via a connection, and, while the downhole-deployable gas separator precursor is disposed within the wellbore, the connection is defeatable in response to degradation of the degradable material, with effect that a reservoir production system is obtained within the wellbore;
- the reservoir production system comprises:
- a gas separator;
- the pump; and
- the gas-depleted reservoir fluid conductor;
- wherein:
- the gas separator includes the flow diverter, the reservoir fluid conductor, and the sealed interface effector;
- the gas separator is fluidly coupled to the gas-depleted reservoir fluid conductor for supplying a gas-depleted reservoir fluid to the gas-depleted reservoir fluid conductor;
- the gas-depleted reservoir fluid conductor includes a fluid conductor portion that is defined by the pump;
- the pump is configured for pressurizing the gas-depleted reservoir fluid received from the gas separator, with effected that pressurized gas-depleted reservoir fluid is conducted to the surface via the gas-depleted reservoir fluid conductor;
- the gas separator and the wellbore string are co-operatively configured such that there is established, within the wellbore, a reservoir fluid-receiving zone, a reservoir fluid-conducting passage, a separation zone, a gas-depleted reservoir fluid-conducting passage, and a liquid-depleted reservoir fluid-conducting passage;
- the separation zone is disposed within a vertical portion of the wellbore and is disposed above the reservoir fluid-receiving zone;
- the liquid-depleted reservoir fluid-conducting passage is disposed above the separation zone and extends to the surface;
- the flow diverter separates the reservoir fluid-conducting passage from the gas-depleted reservoir fluid-conducting passage;
- the gas separator, the pump, and the gas-depleted reservoir fluid conductor are co-operatively configured such that:
- while the reservoir fluid is emplaced within the reservoir fluid-receiving zone, the reservoir fluid-conducting passage is disposed for conducting the reservoir fluid upwardly as a flow from the reservoir fluid receiving zone to the separation zone;
- while the reservoir fluid flow is being conducted by the reservoir fluid-conducted passage and becoming emplaced within the separation zone, the reservoir fluid flow is separated into a gas-depleted reservoir fluid flow and a liquid-depleted reservoir fluid flow in response to at least buoyancy forces, with effect that: (i) a downwardly flow of the gas-depleted reservoir fluid, from the separation zone, is established, and (ii) an upwardly flow of the liquid-depleted reservoir fluid, from the separation zone, is established;
- while the gas-depleted reservoir fluid flow is being separated from the reservoir fluid flow within the separation zone, the gas-depleted reservoir fluid flow is received and diverted by the flow diverter to the gas-depleted reservoir fluid conductor for conduction to the surface; and
- while the liquid-depleted reservoir fluid flow is being separated from the reservoir fluid flow within the separation zone and is being flowed upwardly from the separation zone, the liquid-depleted reservoir fluid is conducted to the surface via the liquid-depleted reservoir fluid-conducting passage;
- the reservoir fluid conductor flow passage defines a portion of the reservoir fluid-conducting passage;
- the flow receiving communicator is effective for receiving the reservoir fluid from the reservoir fluid-receiving zone such that the conducting of the reservoir fluid, by the reservoir fluid-conducting passage, is effected while the reservoir fluid is being received by the flow receiving communicator from the reservoir fluid-receiving zone;
- the reservoir fluid conductor flow passage is effective for conducting the reservoir fluid received by the flow receiving communicator to the flow discharging communicator; and
- the flow discharging communicator is effective for discharging the reservoir fluid from the reservoir fluid conductor;
- the flow diverter, the wellbore string, the reservoir fluid conductor, and the sealed interface effector are co-operatively configured such that:
- an intermediate passage is disposed between the flow diverter and the wellbore string and defines another portion of the reservoir fluid-conducting passage;
- the flow discharging communicator is disposed in flow communication with the reservoir fluid separation zone via the intermediate passage; and
- while reservoir fluid is being discharged from the flow discharging communicator, the discharged reservoir fluid is diverted by the sealed interface effector to the intermediate passage for conduction to the reservoir fluid separation zone.
- In another aspect there is provided a reservoir production system, disposed within a wellbore that is lined with a wellbore string, comprising:
- a gas separator;
- a pump; and
- a gas-depleted reservoir fluid conductor;
- wherein:
-
- the gas separator is fluidly coupled to the gas-depleted reservoir fluid conductor for supplying a gas-depleted reservoir fluid to the gas-depleted reservoir fluid conductor;
- the gas-depleted reservoir fluid conductor includes a fluid conductor portion that is defined by the pump;
- the pump is configured for pressurizing the gas-depleted reservoir fluid received from the gas separator, with effected that pressurized gas-depleted reservoir fluid is conducted to the surface via the gas-depleted reservoir fluid conductor;
- the gas separator and the wellbore string are co-operatively configured such that there is established, within the wellbore, a reservoir fluid-receiving zone, a reservoir fluid-conducting passage, a separation zone, a gas-depleted reservoir fluid-conducting passage, and a liquid-depleted reservoir fluid-conducting passage;
- the separation zone is disposed within a vertical portion of the wellbore and is disposed above the reservoir fluid-receiving zone;
- the liquid-depleted reservoir fluid-conducting passage is disposed above the separation zone and extends to the surface;
- the gas separator includes a flow diverter;
- the flow diverter separates the reservoir fluid-conducting passage from the gas-depleted reservoir fluid-conducting passage;
- the gas separator, the pump, and the gas-depleted reservoir fluid conductor are further co-operatively configured such that:
- while the reservoir fluid is emplaced within the reservoir fluid-receiving zone, the reservoir fluid-conducting passage is disposed for conducting the reservoir fluid upwardly as a flow from the reservoir fluid receiving zone to the separation zone;
- while the reservoir fluid flow is being conducted by the reservoir fluid-conducted passage and becoming emplaced within the separation zone, the reservoir fluid flow is separated into a gas-depleted reservoir fluid flow and a liquid-depleted reservoir fluid flow in response to at least buoyancy forces, with effect that: (i) a downwardly flow of the gas-depleted reservoir fluid, from the separation zone, is established, and (ii) an upwardly flow of the liquid-depleted reservoir fluid, from the separation zone, is established;
- while the gas-depleted reservoir fluid flow is being separated from the reservoir fluid flow within the separation zone, the gas-depleted reservoir fluid flow is received and diverted by the flow diverter to the gas-depleted reservoir fluid conductor for conduction to the surface; and
- while the liquid-depleted reservoir fluid flow is being separated from the reservoir fluid flow within the separation zone and is being flowed upwardly from the separation zone, the liquid-depleted reservoir fluid is conducted to the surface via the liquid-depleted reservoir fluid-conducting passage;
- the gas separator further includes:
- a reservoir fluid conductor; and
- a sealed interface effector;
- the reservoir fluid conductor includes:
- a flow receiving communicator;
- a flow discharging communicator; and
- a reservoir fluid conductor flow passage;
- wherein:
- the reservoir fluid conductor flow passage defines a portion of the reservoir fluid-conducting passage;
- the flow receiving communicator is effective for receiving the reservoir fluid from the reservoir fluid-receiving zone such that the conducting of the reservoir fluid, by the reservoir fluid-conducting passage, is effected while the reservoir fluid is being received by the flow receiving communicator from the reservoir fluid-receiving zone;
- the reservoir fluid conductor flow passage is effective for conducting the reservoir fluid received by the flow receiving communicator to the flow discharging communicator; and
- the flow discharging communicator is effective for discharging the reservoir fluid from the reservoir fluid conductor;
- the flow diverter, the wellbore string, the reservoir fluid conductor, and the sealed interface effector are co-operatively configured such that:
- an intermediate passage is disposed between the flow diverter and the wellbore string and defines another portion of the reservoir fluid-conducting passage;
- the flow discharging communicator is disposed in flow communication with the reservoir fluid separation zone via the intermediate passage;
- while reservoir fluid is being discharged from the flow discharging communicator, the discharged reservoir fluid is diverted by the sealed interface effector to the intermediate passage for conduction to the reservoir fluid separation zone;
- a bubble coalescence zone is disposed between the flow discharging communicator and the intermediate passage; and
- the minimum spacing distance from the flow discharging communicator to the flow diverter is at least five (5) feet.
- In another aspect there is provided a top hold down pump comprising:
- a barrel;
- wherein:
-
- the barrel includes a flow passage-defining portion and a reinforcing layer
- the flow passage-defining portion includes an inner surface and an outer surface;
- the inner surface defines a flow passage of the barrel for conducting fluid being pressurized by the pump;
- the reinforcing layer is coupled to the outer surface such that the reinforcing layer overlies at least a portion of the outer surface;
- the material of construction of the flow passage-defining portion includes polymeric material; and
- the reinforcing layer includes a plurality of continuous fibers.
- Reference will now be made, by way of example, to the accompanying drawings which show example embodiments of the present application, and in which:
-
FIG. 1 is a schematic illustration of an embodiment of a reservoir production system, of the present disclosure, disposed within a wellbore; -
FIG. 2 is a schematic illustration of an embodiment of a precursor to the system illustrated inFIG. 1 , with the reservoir fluid conductor connected to the flow diverter; -
FIG. 3 is a perspective view, partly cut-away, of a section of a barrel of a top hold down pump of an embodiment of the present disclosure; -
FIG. 4 is a perspective view, partly cut-away, of a section of a reservoir fluid conductor of an embodiment of the present disclosure; and -
FIG. 5 is a schematic illustration of an embodiment of a precursor to the system illustrated inFIGS. 1 and 2 , with the reservoir fluid conductor connected to the flow diverter; - Similar reference numerals may have been used in different figures to denote similar components.
- Referring to
FIGS. 1 and 2 , there is provided asystem 10 for producing hydrocarbons from an oil reservoir within asubterranean formation 100. - A
wellbore 102 of a subterranean formation can be straight, curved or branched. The wellbore can have various wellbore sections. A wellbore section is an axial length of awellbore 102. A wellbore section can be characterized as “vertical” or “horizontal” even though the actual axial orientation can vary from true vertical or true horizontal, and even though the axial path can tend to “corkscrew” or otherwise vary. In some embodiments, for example, the central longitudinal axis of the passage of a horizontal section is disposed along an axis that is between about 70 and about 110 degrees relative to the vertical, while the central longitudinal axis of the passage of a vertical section is disposed along an axis that is less than about 20 degrees from the vertical “V”, and a transition section is disposed between the horizontal and vertical sections. - “Reservoir fluid” is fluid that is contained within an oil reservoir. Reservoir fluid may be liquid material, gaseous material, or a mixture of liquid material and gaseous material. In some embodiments, for example, the reservoir fluid includes water and hydrocarbons, such as oil, natural gas condensates, or any combination thereof. Reservoir fluid may also include fluids injected into the reservoir for effecting stimulation of resident fluids within the reservoir.
- A
wellbore string 200 is emplaced within thewellbore 102 for stabilizing thesubterranean formation 100. In some embodiments, for example, thewellbore string 200 also contributes to effecting fluidic isolation of one zone within thesubterranean formation 100 from another zone within thesubterranean formation 100. - The fluid productive portion of the
wellbore 102 may be completed either as a cased-hole completion or an open-hole completion. - With respect to a cased-hole completion, in some embodiments, for example, a
wellbore string 200, in the form of a wellbore casing that includes one or more casing strings, each of which is positioned within thewellbore 102, having one end extending from thewellhead 106, is provided. In some embodiments, for example, each casing string is defined by jointed segments of pipe. The jointed segments of pipe typically have threaded connections. - Typically, a
wellbore 102 contains multiple intervals of concentric casing strings, successively deployed within the previously run casing. With the exception of a liner string, casing strings typically run back up to thesurface 104. Typically, casing string sizes are intentionally minimized to minimize costs during well construction. Generally, smaller casing sizes make production and artificial lifting more challenging. - For wells that are used for producing reservoir fluid, few of these actually produce through the wellbore casing. This is because producing fluids can corrode steel or form undesirable deposits (for example, scales, asphaltenes or paraffin waxes) and the larger diameter can make flow unstable. In this respect, a production string is usually installed inside the last casing string. The production string is provided to conduct reservoir fluid, received within the wellbore, to the
wellhead 106. In some embodiments, for example, the annular region between the last casing string and the production tubing string may be sealed at the bottom by a packer. - The
wellbore 102 is disposed in flow communication (such as through perforations provided within the installed casing or liner, or by virtue of the open hole configuration of the completion), or is selectively disposable into flow communication (such as by perforating the installed casing, or by actuating a valve to effect opening of a port), with thesubterranean formation 100. When disposed in flow communication with thesubterranean formation 100, thewellbore 102 is disposed for receiving reservoir fluid flow from thesubterranean formation 100, with effect that thesystem 10 receives the reservoir fluid. - In some embodiments, for example, the wellbore casing is set short of total depth. Hanging off from the bottom of the wellbore casing, with a liner hanger or packer, is a liner string. The liner string can be made from the same material as the casing string, but, unlike the casing string, the liner string does not extend back to the
wellhead 106. Cement may be provided within the annular region between the liner string and the oil reservoir for effecting zonal isolation (see below), but is not in all cases. In some embodiments, for example, this liner is perforated to effect flow communication between the reservoir and the wellbore. In some embodiments, for example, the production tubing string may be engaged or stung into the liner string, thereby providing a fluid passage for conducting the produced reservoir fluid to thewellhead 106. - An open-hole completion is established by drilling down to the producing formation, and then lining the wellbore (such as, for example, with a wellbore string 200). The wellbore is then drilled through the producing formation, and the bottom of the wellbore is left open (i.e. uncased), to effect flow communication between the reservoir and the wellbore.
- The
system 10 receives, via thewellbore 102, the reservoir fluid flow from thesubterranean formation 100. As discussed above, thewellbore 102 is disposed in flow communication (such as through perforations provided within the installed casing or liner, or by virtue of the open hole configuration of the completion), or is selectively disposable into flow communication (such as by perforating the installed casing, or by actuating a valve to effect opening of a port), with thesubterranean formation 100. When disposed in flow communication with thesubterranean formation 100, a reservoir fluid-receivingzone 402 of thewellbore 102 is disposed for receiving reservoir fluid flow from thesubterranean formation 100, with effect that thesystem 10 receives the reservoir fluid. - In some embodiments, for example, the
system 10 includes aproduction system 300 disposed within thewellbore 102. - The
production system 300 includes a gas-depleted reservoirfluid production system 400, apump 600, and a gas-depletedreservoir fluid conductor 500. The gas-depletedreservoir fluid conductor 500 is suspended within thewellbore 102 from thewellhead 106 disposed at thesurface 104. The gas-depleted reservoirfluid production system 400 is fluidly coupled to thepump 600 for supplying a gas-depleted reservoir fluid to the gas-depletedreservoir fluid pump 600. Thepump 600 is configured for pressurizing the gas-depleted reservoir fluid received from the gas-depleted reservoirfluid production system 400, with effected that pressurized gas-depleted reservoir fluid is conducted to thesurface 104 via the gas-depletedreservoir fluid conductor 500. - In some embodiments, for example, the
pump 600 is a rod pump. In some embodiments, for example, the rod pump is a top hold down rod pump. In some embodiments, for example, the rod pump is a bottom hold down rod pump. - Referring to
FIG. 3 , in those embodiments where thepump 600 is a top hold down rod pump, in some of these embodiments, for example, thebarrel 602 includes a flow passage-definingportion 604 and a reinforcinglayer 606. The flow passage-definingportion 604 includes aninner surface 604A and anouter surface 604B. Theinner surface 604A defines thefluid passage 608 of thebarrel 602, and, in this respect, defines a portion of the gas-depletedreservoir fluid conductor 500. The reinforcinglayer 606 is coupled to theouter surface 604B such that the reinforcinglayer 606 overlies at least a portion of theouter surface 604B. In some embodiments, for example, the flow passage-definingportion 604 has a perimeter defined by theouter surface 604B, and the overlying is with effect that the reinforcinglayer 606 extends about the entirety of the perimeter of the flow passage-definingportion 604. The reinforcinglayer 606 functions to reinforce the strength of the flow passage-definingportion 604, thereby enabling use of a largersized pump 600. - In some embodiments, for example, the reinforcing
layer 606 and theouter surface 604B are co-operatively configured such that the coupling of the reinforcinglayer 606 to theouter surface 604B includes adsorption of the reinforcinglayer 606 to theouter surface 604B. In some embodiments, for example, the adsorption includes adhesion. In some embodiments, for example, the coupling of the reinforcinglayer 606 to theouter surface 604B includes chemical bonding between the reinforcinglayer 606 and theouter surface 604B. - In some embodiments, for example, the material of construction of the flow passage-defining
portion 604 includes polymeric material, such as, for example, polypropylene. In some embodiments, for example, the flow passage-definingportion 604 is formed from polymeric material, such as, for example, polypropylene. - In some embodiments, for example, the reinforcing
layer 606 includes a plurality of continuous fibers. Suitable continuous fibers include glass fibers, carbon fibers, and aramid fibers. In some embodiments, for example, the continuous fibers are helically wound about the flow passage-definingportion 604 with respect to alongitudinal axis 604X of the flow passage-definingportion 604. In some embodiments, for example, helical winding is at a winding angle of from 40 degrees to 60 degrees. In some embodiments, for example, the continuous fibers are embedded within a matrix, such as, for example, a polymeric matrix. - In some embodiments, for example, the reinforcing
layer 606 includes continuous fiber reinforced thermoplastic (“CFRT”) material. In some embodiments, for example, the reinforcinglayer 606 is formed from CFRT material. Suitable continuous fibers include glass fibers, carbon fibers, and aramid fibers. Suitable thermoplastic materials include polyethylene, polypropylene, nylon, and acrylonitrile butadiene styrene (“ABS”). - In some embodiments, for example, the reinforcing
layer 606 is in the form of a tape of CFRT material. In some embodiments, for example, the tape is helically wound about the flow passage-definingportion 604 with respect to alongitudinal axis 604X of the flow passage-definingportion 604. In some embodiments, for example, helical winding is at a winding angle of from 40 degrees to 60 degrees. - In some embodiments, for example, the reinforcing
layer 606 is a first reinforcinglayer 606 which includes an outer surface 606A, and thebarrel 602 further includes a second reinforcinglayer 608. The second reinforcinglayer 608 is coupled to the first reinforcinglayer 606 such that the second reinforcinglayer 608 overlies at least a portion of the outer surface 606A of the first reinforcinglayer 606. In some embodiments, for example, the first reinforcinglayer 606 has a perimeter defined by the outer surface 606A, and the overlying is with effect that the second reinforcinglayer 608 extends about the entirety of the perimeter of the first reinforcinglayer 606. The second reinforcinglayer 608 functions to further reinforce the strength of the flow passage-definingportion 604. - In some embodiments, for example, the second reinforcing
layer 608 and the outer surface 606A are co-operatively configured such that the coupling of the second reinforcinglayer 608 to the outer surface 606A includes adsorption of the second reinforcinglayer 608 to the outer surface 606A. In some embodiments, for example, the adsorption includes adhesion. In some embodiments, for example, the coupling of the second reinforcinglayer 608 to the outer surface 606A includes chemical bonding between the second reinforcinglayer 608 and the outer surface 606A. - In some embodiments, for example, the second reinforcing
layer 608 includes a plurality of continuous fibers. Suitable continuous fibers include glass fibers, carbon fibers, and aramid fibers. In some embodiments, for example, the continuous fibers are helically wound about the flow passage-definingportion 604 with respect to alongitudinal axis 604X of the flow passage-definingportion 604. In some embodiments, for example, helical winding is at a winding angle of from 40 degrees to 60 degrees. In some embodiments, for example, the continuous fibers are embedded within a matrix, such as, for example, a polymeric matrix. - In some embodiments, for example, the second reinforcing
layer 608 includes continuous fiber reinforced thermoplastic (“CFRT”) material. In some embodiments, for example, the second reinforcinglayer 608 is formed from CFRT material. Suitable continuous fibers include glass fibers, carbon fibers, and aramid fibers. Suitable thermoplastic materials include polyethylene, polypropylene, nylon, and acrylonitrile butadiene styrene (“ABS”). - In some embodiments, for example, the second reinforcing
layer 608 is in the form of a tape of CFRT material. In some embodiments, for example, the tape is helically wound about the flow passage-definingportion 604 with respect to alongitudinal axis 604X of the flow passage-definingportion 604. In some embodiments, for example, helical winding is at a winding angle of from 40 degrees to 60 degrees. - In some embodiments, for example, the first reinforcing
layer 606 is in the form of a tape of CFRT material, and the second reinforcinglayer 608 is in the form of a tape of CFRT material. In some embodiments, for example, the tape of the first reinforcinglayer 606 is helically wound about the flow passage-defining portion 605 with respect to thelongitudinal axis 604X of the flow passage-definingportion 604, and, in some of these embodiments, for example, helical winding is at a winding angle of from 40 degrees to 60 degrees. In some embodiments, for example, the tape of the second reinforcinglayer 608 is helically wound about the first reinforcinglayer 606 with respect to thelongitudinal axis 604X of the flow passage-definingportion 604, and, in some of these embodiments, for example, helical winding is at a winding angle of from 40 degrees to 60 degrees. In some embodiments, for example, the winding of the tape of the first reinforcinglayer 606 is in a direction that is opposite to the direction of the winding of the tape of the second reinforcinglayer 608. In some embodiments, for example, the winding of the tape of the first reinforcinglayer 606 is in one of a clockwise or counterclockwise direction, and the winding of the tape of the second reinforcinglayer 608 is in the other one of a clockwise or counterclockwise direction. - In some embodiments, for example, an outer sheath 610 overlies the one or more reinforcing
layers layers portion 604. In this respect, in some embodiments, for example, the outer sheath 610 protects the enclosed materials from degradation, such as, for example, degradation in response to abrasion, chemical conversion, or dissolution. In some embodiments, for example, the outer sheath 610 functions to hold the enclosed materials in place. - The
system 10 is configured for producing reservoir fluid while, amongst other things, mitigating gas lock within thepump 600. - In this respect, the gas-depleted reservoir
fluid production system 400 co-operates with thewellbore string 200 to define a flow diverter 400A. - The flow diverter 400A defines a reservoir fluid
flow passage configuration 404, aseparation zone 406, a downwardly-conductingflow passage configuration 422, and an upwardly-conductingflow passage configuration 407. In some embodiments, for example, theseparation zone 406 is disposed within a vertical portion of thewellbore 102. Theseparation zone 406 is disposed vertically above (and uphole relative to) the reservoir fluid-receivingzone 402, and vertically below (and downhole relative to) thewellhead 106. - The reservoir fluid-receiving
zone 402, the reservoir fluidflow passage configuration 404, theseparation zone 406, the downwardly-conductingflow passage configuration 422, and the upwardly-conductingflow passage configuration 407 are co-operatively configured such that: -
- while reservoir fluid flow is being received within the reservoir fluid flow-receiving
zone 402, from thesubterranean formation 100, the reservoir fluid flow is conducted upwardly to thegas separation zone 406 via the reservoir fluidflow conductor configuration 404, with effect that the reservoir fluid flow becomes emplaced within theseparation zone 406; - while the reservoir fluid flow is disposed within the
separation zone 406, in response to buoyancy forces, gaseous material is separated from the reservoir fluid flow, with effect that an upwardly-flowing gas-enriched reservoir fluid flow (flow 414) and a downwardly-flowing gas-depleted reservoir fluid flow (flow 412) are obtained, and such that: the downwardly-flowing gas-depleted reservoir fluid flow is conducted by the downwardly-conductingflow conductor configuration 422, and the upwardly-flowing gas-enriched reservoir fluid flow is conducted by a gas-enriched fluid-conducting passage 410 (disposed above theseparation zone 406 and extending to thesurface 104; and - while the gas-depleted reservoir fluid flow (flow 412) is being conducted in a downwardly direction by the downwardly-conducting
flow conductor configuration 422, the gas-depleted reservoir fluid flow is diverted such that an upwardly gas-depleted reservoir fluid flow (flow 413) is being conducted through the upwardly-conductingflow conductor configuration 407 for supplying thedownhole pump 600 for pumping the gas-depleted reservoir fluid to thesurface 104.
- while reservoir fluid flow is being received within the reservoir fluid flow-receiving
- In some embodiments, for example, the gas-depleted reservoir
fluid production system 400 includes a reservoirfluid flow conductor 416, defining a reservoir fluid flow conducting passage 441 and a sealed interface effector 418 (such as, for example, a packer). At least a portion of the reservoir fluidflow passage configuration 404 is defined by the reservoir fluidflow conducting passage 416A. The sealedinterface effector 418 is mounted to the reservoirfluid flow conductor 416 such that the reservoirfluid flow conductor 416 is sealingly engaged to thewellbore string 200 via the sealedinterface effector 418. - In some embodiments, for example, at least a portion of the reservoir
fluid flow conductor 416 is avelocity string 420. In some embodiments, for example, the at least a portion of the reservoirfluid flow conductor 416 is the entirety of the reservoirfluid flow conductor 416, such that, in such embodiments, the velocity string is the reservoirfluid flow conductor 416. In some embodiments, for example, the sealing engagement of the reservoirfluid flow conductor 416 to thewellbore string 200 is a sealing engagement of thevelocity string 420 to the wellbore string. In this respect, in some embodiments, for example, the sealedinterface effector 418 is mounted to thevelocity string 420. - In those embodiments where at least a portion of the reservoir
fluid flow conductor 416 is avelocity string 420, in some of these embodiments, for example, thevelocity string 420 is characterized by a maximum cross-sectional flow area, and the maximum cross-sectional flow area is smaller than the minimum cross-sectional flow area of the reservoir fluid-receivingspace 402. In some of these embodiments, for example, the ratio of the minimum cross-sectional flow area of the reservoir fluid-receivingspace 402 to the maximum cross-sectional flow area of the reservoir fluidflow passage configuration 404, defined by thevelocity string 420, is at least 1.5. - In those embodiments where at least a portion of the reservoir
fluid flow conductor 416 is avelocity string 420, in some of these embodiments, for example, at least a portion of thevelocity string 420 is disposed within aheel portion 108 of thewellbore 102. In some embodiments, for example, thevelocity string 420 extends through theheel portion 108. - In some embodiments, for example, the material of construction of the
reservoir fluid conductor 416 includes polymeric material, such as, for example, polypropylene. In some embodiments, for example, thereservoir fluid conductor 416 is formed from polymeric material, such as, for example, polypropylene. - Referring to
FIG. 4 , in some embodiments, for example, the reservoir fluid flow conductor 416 (including, in some embodiments, thevelocity string 420 of the reservoir fluid flow conductor 416) includes a flow passage-definingportion 4161 and a reinforcinglayer 4162. The flow passage-definingportion 4161 includes aninner surface 4161A and an outer surface 4161B. Theinner surface 4161A defines thefluid passage 4163 of the reservoirfluid flow conductor 416. The reinforcinglayer 4162 is coupled to the outer surface 4161B such that the reinforcinglayer 4162 overlies at least a portion of the outer surface 4161B. In some embodiments, for example, the flow passage-definingportion 4161 has a perimeter defined by the outer surface 4161B, and the overlying is with effect that the reinforcinglayer 4162 extends about the entirety of the perimeter of the flow passage-definingportion 4161. The reinforcinglayer 4162 functions to reinforce the strength of the flow passage-definingportion 4161. - In some embodiments, for example, the reinforcing
layer 4162 and the outer surface 4161B are co-operatively configured such that the coupling of the reinforcinglayer 4162 to the outer surface 4161B includes adsorption of the reinforcinglayer 4162 to the outer surface 4161B. In some embodiments, for example, the adsorption includes adhesion. In some embodiments, for example, the coupling of the reinforcinglayer 4162 to the outer surface 4161B includes chemical bonding between the reinforcinglayer 4162 and the outer surface 4161B. - In some embodiments, for example, the material of construction of the flow passage-defining
portion 4161 includes polymeric material, such as, for example, polypropylene. In some embodiments, for example, the flow passage-definingportion 4161 is formed from polymeric material, such as, for example, polypropylene. - In some embodiments, for example, the reinforcing
layer 4162 includes a plurality of continuous fibers. Suitable continuous fibers include glass fibers, carbon fibers, and aramid fibers. In some embodiments, for example, the continuous fibers are helically wound about the flow passage-definingportion 4161 with respect to alongitudinal axis 4161X of the flow passage-definingportion 4161. In some embodiments, for example, helical winding is at a winding angle of from 40 degrees to 60 degrees. In some embodiments, for example, the continuous fibers are embedded within a matrix, such as, for example, a polymeric matrix. - In some embodiments, for example, the reinforcing
layer 4162 includes continuous fiber reinforced thermoplastic (“CFRT”) material. In some embodiments, for example, the reinforcinglayer 4162 is formed from CFRT material. Suitable continuous fibers include glass fibers, carbon fibers, and aramid fibers. Suitable thermoplastic materials include polyethylene, polypropylene, nylon, and acrylonitrile butadiene styrene (“ABS”). - In some embodiments, for example, the reinforcing
layer 4162 is in the form of a tape of CFRT material. In some embodiments, for example, the tape is helically wound about the flow passage-definingportion 4161 with respect to alongitudinal axis 4161X of the flow passage-definingportion 4161. In some embodiments, for example, helical winding is at a winding angle of from 40 degrees to 60 degrees. - In some embodiments, for example, the reinforcing
layer 4162 is a first reinforcinglayer 4162 which includes anouter surface 4162A, and thereservoir fluid conductor 416 further includes a second reinforcinglayer 4164. The second reinforcinglayer 4164 is coupled to the first reinforcinglayer 4162 such that the second reinforcinglayer 4164 overlies at least a portion of theouter surface 4162A of the first reinforcinglayer 4162. In some embodiments, for example, the first reinforcinglayer 4162 has a perimeter defined by theouter surface 4162A, and the overlying is with effect that the second reinforcinglayer 4164 extends about the entirety of the perimeter of the first reinforcinglayer 4162. The reinforcinglayer 4164 functions to further reinforce the strength of the flow passage-definingportion 4161. - In some embodiments, for example, the second reinforcing
layer 4164 and theouter surface 4162A are co-operatively configured such that the coupling of the second reinforcinglayer 4164 to theouter surface 4162A includes adsorption of the second reinforcinglayer 4164 to theouter surface 4162A. In some embodiments, for example, the adsorption includes adhesion. In some embodiments, for example, the coupling of the second reinforcinglayer 4164 to theouter surface 4162A includes chemical bonding between the second reinforcinglayer 4162 and theouter surface 4162A. - In some embodiments, for example, the second reinforcing
layer 4164 includes a plurality of continuous fibers. Suitable continuous fibers include glass fibers, carbon fibers, and aramid fibers. In some embodiments, for example, the continuous fibers are helically wound about the flow passage-definingportion 4161 with respect to alongitudinal axis 4161X of the flow passage-definingportion 4161. In some embodiments, for example, helical winding is at a winding angle of from 40 degrees to 60 degrees. In some embodiments, for example, the continuous fibers are embedded within a matrix, such as, for example, a polymeric matrix. - In some embodiments, for example, the second reinforcing
layer 4164 includes continuous fiber reinforced thermoplastic (“CFRT”) material. In some embodiments, for example, the second reinforcinglayer 4164 is formed from CFRT material. Suitable continuous fibers include glass fibers, carbon fibers, and aramid fibers. Suitable thermoplastic materials include polyethylene, polypropylene, nylon, and acrylonitrile butadiene styrene (“ABS”). - In some embodiments, for example, the second reinforcing
layer 4164 is in the form of a tape of CFRT material. In some embodiments, for example, the tape is helically wound about the flow passage-definingportion 4161 with respect to alongitudinal axis 4161X of the flow passage-definingportion 4161. In some embodiments, for example, helical winding is at a winding angle of from 40 degrees to 60 degrees. - In some embodiments, for example, the first reinforcing
layer 4162 is in the form of a tape of CFRT material, and the second reinforcinglayer 4164 is in the form of a tape of CFRT material. In some embodiments, for example, the tape of the first reinforcinglayer 4162 is helically wound about the flow passage-definingportion 4161 with respect to thelongitudinal axis 4161X of the flow passage-definingportion 4161, and, in some of these embodiments, for example, helical winding is at a winding angle of from 40 degrees to 60 degrees. In some embodiments, for example, the tape of the second reinforcinglayer 4164 is helically wound about the first reinforcinglayer 4162 with respect to thelongitudinal axis 4161X of the flow passage-definingportion 4161, and, in some of these embodiments, for example, helical winding is at a winding angle of from 40 degrees to 60 degrees. In some embodiments, for example, the winding of the tape of the first reinforcinglayer 4162 is in a direction that is opposite to the direction of the winding of the tape of the second reinforcinglayer 4164. In some embodiments, for example, the winding of the tape of the first reinforcinglayer 4162 is in one of a clockwise or counterclockwise direction, and the winding of the tape of the second reinforcinglayer 4164 is in the other one of a clockwise or counterclockwise direction. - In some embodiments, for example, an outer sheath 4166 overlies the one or more reinforcing
layers layers portion 4161. In this respect, in some embodiments, for example, the outer sheath 4166 protects the enclosed materials from degradation, such as, for example, degradation in response to abrasion, chemical conversion, or dissolution. In some embodiments, for example, the outer sheath 4166 functions to hold the enclosed materials in place. - In those embodiments where the material of construction of the reservoir
fluid flow conductor 416 includes polymeric material (including, for example, those embodiments where the reservoirfluid flow conductor 416 includes a flow passage-definingportion 4161 and a reinforcing layer 4162), in some of these embodiments, for example, the sealedinterface effector 418 includes a swellable packer. - In some embodiments, for example, gas-depleted reservoir
fluid production system 400 further includes agas separator 408, and thegas separator 400 defines the downwardly-conductingflow passage configuration 422 and the upwardly-conductingflow passage configuration 407. Thegas separator 408 and thewellbore string 200 are co-operatively configured such that anintermediate passage 426 is defined between thegas separator 408 and thewellbore string 200. - Co-operatively, the reservoir
fluid flow conductor 416 includes a flow receiving communicator 440 (such as, for example, an inlet port), a flow discharging communicator 442 (such as, for example, an outlet port), and a reservoir fluid flow conducting passage 441. At least a portion of the reservoir fluidflow passage configuration 404 is defined by the reservoir fluid flow conducting passage 441. Theflow receiving communicator 440 is disposed for receiving the reservoir fluid from the reservoir fluid-receivingzone 402 such that the conducting of the reservoir fluid, by the reservoir fluid flow conducting passage 441, is effected while the reservoir fluid is being received by theflow receiving communicator 440 from the reservoir fluid-receivingzone 402. The reservoir fluid flow conducting passage 441 is effective for conducting the reservoir fluid received by theflow receiving communicator 440 to theflow discharging communicator 442. Theflow discharging communicator 442 is effective for discharging the reservoir fluid from the reservoirfluid flow conductor 416. Theflow discharging communicator 442 is disposed in flow communication with theseparation zone 406 via theintermediate passage 426 such that the discharging reservoir fluid is conducted to theseparation zone 406 via theintermediate flow passage 426. - The reservoir
fluid flow conductor 416, the sealedinterface 418, and theintermediate passage 426 are co-operatively configured such that, while the reservoir fluid flow is being received within the reservoir fluidflow receiving zone 402, the reservoir fluid flow is conducted from the reservoir fluidflow receiving zone 402 to theseparation zone 406 via at least the reservoir fluid flow conducting passage 441 and theintermediate passage 426, such that the reservoir fluidflow passage configuration 404 includes the reservoir fluid flow conducting passage 441 and theintermediate passage 426. - In some embodiments, for example, the
gas separator 408 defines a gas-depletedreservoir fluid collector 411. Thecollector 411 defines ashroud 424, and the downwardly-conductingflow passage configuration 422 and the upwardly-conductingflow passage configuration 407 are disposed within theshroud 424. Theshroud 424 separates the downwardly-conductingflow passage configuration 422 and the upwardly-conductingflow passage configuration 407 from theintermediate passage 426. - In some of these embodiments, for example, the
shroud 424 is defined by a vertically extendingwall 428 projecting from abase 430, such that anopening 432 is defined by anupper edge 434 of thewall 428, for receiving the downwardly flow of the separated gas-depleted reservoir fluid, and thewall 428 and the base 430 co-operate to define a gas-depleted reservoirfluid collection space 436, which defines the downwardly-conductingflow conductor configuration 422, for receiving the downwardly-flowing gas-depleted reservoir fluid flow, and diverting such downwardly-flowing gas-depleted reservoir fluid flow such that the upwardly-flowing gas-depleted reservoir fluid flow is obtained and conducted via the upwardly-conductingflow conductor configuration 407, which is defined by aconduit 407A, to thepump 600. - In some of these embodiments, for example, the
gas separator 408 is disposed above theflow discharging communicator 442, such that abubble coalescent zone 444 is defined between theflow discharging communicator 442 and the flow diverter 400A. In some embodiments, for example, the minimum spacing distance from theflow discharging communicator 442 to thegas separator 408 is at least five (5) feet, such as, for example, at least ten (10) feet, such as, for example, at least 20 feet, such as, for example, at least 30 feet. In some embodiments, for example, the minimum spacing distance from theflow discharging communicator 442 to the intermediate passage is at least five (5) feet, such as, for example, at least ten (10) feet, such as, for example, at least 20 feet, such as, for example, at least 30 feet. The minimum cross-sectional flow area of thebubble coalescent zone 444 is greater than the maximum cross-sectional flow area of the reservoir fluid conducting passage portion 404A of the reservoir fluid conductor 416 (such as, for example, the velocity string 420). In some embodiments, for example, the ratio, of the minimum cross-sectional flow area of thebubble coalescent zone 444 to the maximum cross-sectional flow area of the reservoir fluid conducting passage portion 404A of the reservoir fluid conductor 416 (such as, for example, the velocity string 420), is at least 1.5. Thebubble coalescent zone 444 is configured to reduce the velocity of the reservoir fluid flow being discharged from thereservoir fluid conductor 416, and mitigate turbulent flow conditions, so as to promote bubble coalescence, which facilitates the separation within theseparation zone 404. In this respect, the conducting of the reservoir fluid from the reservoir fluid-receivingspace 402 to theseparation zone 406 is effected via at least the reservoir fluid flow conducting passage 441 of the reservoir fluid conductor 416 (such as, for example, the velocity string 420), thebubble coalescent zone 444, and theintermediate space 426. - Referring to
FIG. 5 , in some embodiments, for example, for establishing disposition of the gas-depleted reservoirfluid production system 400 within thewellbore 102 in a production-effective configuration, a gas-depleted reservoir fluidproduction system precursor 401 is deployed within the wellbore. The gas-depleted reservoir fluidproduction system precursor 401 includes anuphole counterpart 401A, a downhole counterpart 401B, anddegradable material 401C. - The
uphole counterpart 401A, the downhole counterpart 401B, and thedegradable material 401C are co-operatively configured such that theuphole counterpart 401A is connected to the downhole counterpart 401B via a connection, and, while the gas-depleted reservoir fluidproduction system precursor 401 is disposed within thewellbore 100, the connection is defeatable in response to degradation of the degradable material, with effect that the gas-depleted reservoirfluid production system 400 is obtained within the wellbore. In some embodiments, for example, the connection is via degradable pins. In some embodiments, for example, the connection, via which theuphole counterpart 401A is connected to the downhole counterpart 401B, is a connection between thegas separator 408 and the reservoirfluid flow conductor 416. - In some embodiments, for example, the degradable material is degradable in response to chemical conversion of at least a portion of the degradable material, such as, for example, chemical conversion stimulated in response to interaction with a chemical agent. In some embodiments, for example, the degradable material is degradable in response to dissolution of at least a portion of the degradable material, such as, for example, dissolution stimulated in response to interaction with a dissolution agent. In some embodiments, for example, the degradable material is degradable in response to disintegration of at least a portion of the degradable material, such as, for example, disintegration stimulated in response to application of a stimulus, such as one or more of a mechanical stimulus, a sonic stimulus, or a light stimulus. In some embodiments, for example, the degradable material is degradable in response to contacting with wellbore fluids.
- In the above description, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the present disclosure. Although certain dimensions and materials are described for implementing the disclosed example embodiments, other suitable dimensions and/or materials may be used within the scope of this disclosure. All such modifications and variations, including all suitable current and future changes in technology, are believed to be within the sphere and scope of the present disclosure. Therefore, it will be understood that certain adaptations and modifications of the described embodiments can be made and that the above discussed embodiments are considered to be illustrative and not restrictive. All references mentioned are hereby incorporated by reference in their entirety.
Claims (24)
1. A reservoir production system, disposed within a wellbore that is lined with a wellbore string, comprising:
a gas separator;
a pump; and
a gas-depleted reservoir fluid conductor;
wherein:
the gas separator is fluidly coupled to the gas-depleted reservoir fluid conductor for supplying a gas-depleted reservoir fluid to the gas-depleted reservoir fluid conductor;
the gas-depleted reservoir fluid conductor includes a fluid conductor portion that is defined by the pump;
the pump is configured for pressurizing the gas-depleted reservoir fluid received from the gas separator, with effected that pressurized gas-depleted reservoir fluid is conducted to the surface via the gas-depleted reservoir fluid conductor;
the gas separator and the wellbore string are co-operatively configured such that there is established, within the wellbore, a reservoir fluid-receiving zone, a reservoir fluid-conducting passage, a separation zone, a gas-depleted reservoir fluid-conducting passage, and a liquid-depleted reservoir fluid-conducting passage;
the separation zone is disposed within a vertical portion of the wellbore and is disposed above the reservoir fluid-receiving zone;
the liquid-depleted reservoir fluid-conducting passage is disposed above the separation zone and extends to the surface;
the gas separator includes a flow diverter;
the flow diverter separates the reservoir fluid-conducting passage from the gas-depleted reservoir fluid-conducting passage;
the gas separator, the pump, and the gas-depleted reservoir fluid conductor are further co-operatively configured such that:
while the reservoir fluid is emplaced within the reservoir fluid-receiving zone, the reservoir fluid-conducting passage is disposed for conducting the reservoir fluid upwardly as a flow from the reservoir fluid receiving zone to the separation zone;
while the reservoir fluid flow is being conducted by the reservoir fluid-conducted passage and becoming emplaced within the separation zone, the reservoir fluid flow is separated into a gas-depleted reservoir fluid flow and a liquid-depleted reservoir fluid flow in response to at least buoyancy forces, with effect that: (i) a downwardly flow of the gas-depleted reservoir fluid, from the separation zone, is established, and (ii) an upwardly flow of the liquid-depleted reservoir fluid, from the separation zone, is established;
while the gas-depleted reservoir fluid flow is being separated from the reservoir fluid flow within the separation zone, the gas-depleted reservoir fluid flow is received and diverted by the flow diverter to the gas-depleted reservoir fluid conductor for conduction to the surface; and
while the liquid-depleted reservoir fluid flow is being separated from the reservoir fluid flow within the separation zone and is being flowed upwardly from the separation zone, the liquid-depleted reservoir fluid is conducted to the surface via the liquid-depleted reservoir fluid-conducting passage;
the gas separator further includes:
a reservoir fluid conductor; and
a sealed interface effector;
at least a portion of the reservoir fluid-conducting passage is defined within the reservoir fluid conductor;
the sealed interface effector is mounted to the reservoir fluid conductor such that the reservoir fluid conductor is sealingly engaged to the wellbore string via the sealed interface effector;
the material of construction of the reservoir fluid conductor includes polymeric material; and
the sealed interface effector includes a swellable packer.
2. The system as claimed in claim 1 ;
wherein:
the reservoir fluid conductor includes:
a flow receiving communicator;
a flow discharging communicator; and
a reservoir fluid conductor flow passage;
wherein:
the defining of at least a portion of the reservoir fluid-conducting passage, within the reservoir fluid conductor, is established by the reservoir fluid conductor flow passage;
the flow receiving communicator is effective for receiving the reservoir fluid from the reservoir fluid-receiving zone such that the conducting of the reservoir fluid, by the reservoir fluid-conducting passage, is effected while the reservoir fluid is being received by the flow receiving communicator from the reservoir fluid-receiving zone;
the reservoir fluid conductor flow passage is effective for conducting the reservoir fluid received by the flow receiving communicator to the flow discharging communicator; and
the flow discharging communicator is effective for discharging the reservoir fluid from the reservoir fluid conductor; and
the flow diverter, the wellbore string, the reservoir fluid conductor, and the sealed interface effector are co-operatively configured such that:
an intermediate passage is disposed between the flow diverter and the wellbore string and defines another portion of the reservoir fluid-conducting passage;
the flow discharging communicator is disposed in flow communication with the reservoir fluid separation zone via the intermediate passage; and
while reservoir fluid is being discharged from the flow discharging communicator, the discharged reservoir fluid is diverted by the sealed interface effector to the intermediate passage for conduction to the reservoir fluid separation zone.
3. The system as claimed in claim 1 ;
wherein:
the swellable packer is mounted to the reservoir fluid conductor.
4. The system as claimed in claim 1 ;
wherein:
the reservoir fluid conductor is a velocity string.
5. The system as claimed in claim 4 ;
wherein:
the velocity string is characterized by a maximum cross-sectional flow area, and the maximum cross-sectional flow area is smaller than the minimum cross-sectional flow area of the reservoir fluid-receiving space.
6. The system as claimed in claim 5 ;
wherein:
the ratio of the minimum cross-sectional flow area of the reservoir fluid-receiving space to the maximum cross-sectional flow area of the reservoir fluid conducting passage portion, defined by the velocity string, is at least 1.5.
7. (canceled)
8. The system as claimed in claim 4 ;
wherein:
the velocity string extends through the heel portion.
9. A reservoir production system, disposed within a wellbore that is lined with a wellbore string, comprising:
a gas separator;
a pump; and
a gas-depleted reservoir fluid conductor;
wherein:
the gas separator is fluidly coupled to the gas-depleted reservoir fluid conductor for supplying a gas-depleted reservoir fluid to the gas-depleted reservoir fluid conductor;
the gas-depleted reservoir fluid conductor includes a fluid conductor portion that is defined by the pump;
the pump is configured for pressurizing the gas-depleted reservoir fluid received from the gas separator, with effected that pressurized gas-depleted reservoir fluid is conducted to the surface via the gas-depleted reservoir fluid conductor;
the gas separator and the wellbore string are co-operatively configured such that there is established, within the wellbore, a reservoir fluid-receiving zone, a reservoir fluid-conducting passage, a separation zone, a gas-depleted reservoir fluid-conducting passage, and a liquid-depleted reservoir fluid-conducting passage;
the separation zone is disposed within a vertical portion of the wellbore and is disposed above the reservoir fluid-receiving zone;
the liquid-depleted reservoir fluid-conducting passage is disposed above the separation zone and extends to the surface;
the gas separator includes a flow diverter;
the flow diverter separates the reservoir fluid-conducting passage from the gas-depleted reservoir fluid-conducting passage;
the gas separator, the pump, and the gas-depleted reservoir fluid conductor are further co-operatively configured such that:
while the reservoir fluid is emplaced within the reservoir fluid-receiving zone, the reservoir fluid-conducting passage is disposed for conducting the reservoir fluid upwardly as a flow from the reservoir fluid receiving zone to the separation zone;
while the reservoir fluid flow is being conducted by the reservoir fluid-conducted passage and becoming emplaced within the separation zone, the reservoir fluid flow is separated into a gas-depleted reservoir fluid flow and a liquid-depleted reservoir fluid flow in response to at least buoyancy forces, with effect that: (i) a downwardly flow of the gas-depleted reservoir fluid, from the separation zone, is established, and (ii) an upwardly flow of the liquid-depleted reservoir fluid, from the separation zone, is established;
while the gas-depleted reservoir fluid flow is being separated from the reservoir fluid flow within the separation zone, the gas-depleted reservoir fluid flow is received and diverted by the flow diverter to the gas-depleted reservoir fluid conductor for conduction to the surface; and
while the liquid-depleted reservoir fluid flow is being separated from the reservoir fluid flow within the separation zone and is being flowed upwardly from the separation zone, the liquid-depleted reservoir fluid is conducted to the surface via the liquid-depleted reservoir fluid-conducting passage;
the gas separator further includes:
a reservoir fluid conductor; and
a sealed interface effector;
at least a portion of the reservoir fluid-conducting passage is defined within the reservoir fluid conductor;
the sealed interface effector is mounted to the reservoir fluid conductor such that the reservoir fluid conductor is sealingly engaged to the wellbore string via the sealed interface effector;
the reservoir fluid conductor includes a flow passage-defining portion and a reinforcing layer;
the flow passage-defining portion includes an inner surface and an outer surface;
the inner surface defines the reservoir fluid conductor flow passage of the reservoir fluid conductor;
the reinforcing layer is coupled to the outer surface such that the reinforcing layer overlies at least a portion of the outer surface;
the material of construction of the flow passage-defining portion includes polymeric material; and
the reinforcing layer includes a plurality of continuous fibers.
10. The system as claimed in claim 9 ;
wherein:
the reservoir fluid conductor includes:
a flow receiving communicator;
a flow discharging communicator; and
a reservoir fluid conductor flow passage;
wherein:
the defining of at least a portion of the reservoir fluid-conducting passage, within the reservoir fluid conductor, is established by the reservoir fluid conductor flow passage;
the flow receiving communicator is effective for receiving the reservoir fluid from the reservoir fluid-receiving zone such that the conducting of the reservoir fluid, by the reservoir fluid-conducting passage, is effected while the reservoir fluid is being received by the flow receiving communicator from the reservoir fluid-receiving zone;
the reservoir fluid conductor flow passage is effective for conducting the reservoir fluid received by the flow receiving communicator to the flow discharging communicator; and
the flow discharging communicator is effective for discharging the reservoir fluid from the reservoir fluid conductor; and
the flow diverter, the wellbore string, the reservoir fluid conductor, and the sealed interface effector are co-operatively configured such that:
an intermediate passage is disposed between the flow diverter and the wellbore string and defines another portion of the reservoir fluid-conducting passage;
the flow discharging communicator is disposed in flow communication with the reservoir fluid separation zone via the intermediate passage; and
while reservoir fluid is being discharged from the flow discharging communicator, the discharged reservoir fluid is diverted by the sealed interface effector to the intermediate passage for conduction to the reservoir fluid separation zone.
11. The system as claimed in claim 9 ;
wherein:
the continuous fibers are helically wound about the flow passage-defining portion with respect to a longitudinal axis of the flow passage-defining portion
12. The system as claimed in claim 11 ;
wherein:
the helical winding is at a winding angle of from 40 degrees to 60 degrees.
13. The system as claimed in claim 9 ;
wherein:
the continuous fibers are embedded within a polymeric matrix such that the reinforcing layer includes a reinforced polymeric material.
14. The system as claimed in claim 13 ;
wherein:
the reinforced polymeric material is a continuous fiber reinforced thermoplastic material.
15. (canceled)
16. A downhole-deployable reservoir production system precursor, deployable within a wellbore lined with a wellbore string for establishing a reservoir production system within the wellbore, comprising:
an uphole counterpart including:
a flow diverter;
a pump; and
a gas-depleted reservoir fluid conductor;
and
downhole counterpart including:
a reservoir fluid conductor including:
a flow receiving communicator;
a flow discharging communicator; and
a reservoir fluid conductor flow passage;
and
a sealed interface effector;
and
degradable material;
wherein:
the uphole counterpart, the downhole counterpart, and the degradable material are co-operatively configured such that the uphole counterpart is connected to the downhole counterpart via a connection, and, while the downhole-deployable gas separator precursor is disposed within the wellbore, the connection is defeatable in response to degradation of the degradable material, with effect that a reservoir production system is obtained within the wellbore;
the reservoir production system comprises:
a gas separator;
the pump; and
the gas-depleted reservoir fluid conductor;
wherein:
the gas separator includes the flow diverter, the reservoir fluid conductor, and the sealed interface effector;
the gas separator is fluidly coupled to the gas-depleted reservoir fluid conductor for supplying a gas-depleted reservoir fluid to the gas-depleted reservoir fluid conductor;
the gas-depleted reservoir fluid conductor includes a fluid conductor portion that is defined by the pump;
the pump is configured for pressurizing the gas-depleted reservoir fluid received from the gas separator, with effected that pressurized gas-depleted reservoir fluid is conducted to the surface via the gas-depleted reservoir fluid conductor;
the gas separator and the wellbore string are co-operatively configured such that there is established, within the wellbore, a reservoir fluid-receiving zone, a reservoir fluid-conducting passage, a separation zone, a gas-depleted reservoir fluid-conducting passage, and a liquid-depleted reservoir fluid-conducting passage;
the separation zone is disposed within a vertical portion of the wellbore and is disposed above the reservoir fluid-receiving zone;
the liquid-depleted reservoir fluid-conducting passage is disposed above the separation zone and extends to the surface;
the flow diverter separates the reservoir fluid-conducting passage from the gas-depleted reservoir fluid-conducting passage;
the gas separator, the pump, and the gas-depleted reservoir fluid conductor are co-operatively configured such that:
while the reservoir fluid is emplaced within the reservoir fluid-receiving zone, the reservoir fluid-conducting passage is disposed for conducting the reservoir fluid upwardly as a flow from the reservoir fluid receiving zone to the separation zone;
while the reservoir fluid flow is being conducted by the reservoir fluid-conducted passage and becoming emplaced within the separation zone, the reservoir fluid flow is separated into a gas-depleted reservoir fluid flow and a liquid-depleted reservoir fluid flow in response to at least buoyancy forces, with effect that: (i) a downwardly flow of the gas-depleted reservoir fluid, from the separation zone, is established, and (ii) an upwardly flow of the liquid-depleted reservoir fluid, from the separation zone, is established;
while the gas-depleted reservoir fluid flow is being separated from the reservoir fluid flow within the separation zone, the gas-depleted reservoir fluid flow is received and diverted by the flow diverter to the gas-depleted reservoir fluid conductor for conduction to the surface; and
while the liquid-depleted reservoir fluid flow is being separated from the reservoir fluid flow within the separation zone and is being flowed upwardly from the separation zone, the liquid-depleted reservoir fluid is conducted to the surface via the liquid-depleted reservoir fluid-conducting passage;
the reservoir fluid conductor flow passage defines a portion of the reservoir fluid-conducting passage;
the flow receiving communicator is effective for receiving the reservoir fluid from the reservoir fluid-receiving zone such that the conducting of the reservoir fluid, by the reservoir fluid-conducting passage, is effected while the reservoir fluid is being received by the flow receiving communicator from the reservoir fluid-receiving zone;
the reservoir fluid conductor flow passage is effective for conducting the reservoir fluid received by the flow receiving communicator to the flow discharging communicator; and
the flow discharging communicator is effective for discharging the reservoir fluid from the reservoir fluid conductor;
the flow diverter, the wellbore string, the reservoir fluid conductor, and the sealed interface effector are co-operatively configured such that:
an intermediate passage is disposed between the flow diverter and the wellbore string and defines another portion of the reservoir fluid-conducting passage;
the flow discharging communicator is disposed in flow communication with the reservoir fluid separation zone via the intermediate passage; and
while reservoir fluid is being discharged from the flow discharging communicator, the discharged reservoir fluid is diverted by the sealed interface effector to the intermediate passage for conduction to the reservoir fluid separation zone.
17. The gas-depleted reservoir fluid production system precursor as claimed in claim 16 ;
wherein:
the connection, via which the uphole counterpart is connected to the downhole counterpart, is a connection between the gas separator and the reservoir fluid flow conductor.
18. A reservoir production system, disposed within a wellbore that is lined with a wellbore string, comprising:
a gas separator;
a pump; and
a gas-depleted reservoir fluid conductor;
wherein:
the gas separator is fluidly coupled to the gas-depleted reservoir fluid conductor for supplying a gas-depleted reservoir fluid to the gas-depleted reservoir fluid conductor;
the gas-depleted reservoir fluid conductor includes a fluid conductor portion that is defined by the pump;
the pump is configured for pressurizing the gas-depleted reservoir fluid received from the gas separator, with effected that pressurized gas-depleted reservoir fluid is conducted to the surface via the gas-depleted reservoir fluid conductor;
the gas separator and the wellbore string are co-operatively configured such that there is established, within the wellbore, a reservoir fluid-receiving zone, a reservoir fluid-conducting passage, a separation zone, a gas-depleted reservoir fluid-conducting passage, and a liquid-depleted reservoir fluid-conducting passage;
the separation zone is disposed within a vertical portion of the wellbore and is disposed above the reservoir fluid-receiving zone;
the liquid-depleted reservoir fluid-conducting passage is disposed above the separation zone and extends to the surface;
the gas separator includes a flow diverter;
the flow diverter separates the reservoir fluid-conducting passage from the gas-depleted reservoir fluid-conducting passage;
the gas separator, the pump, and the gas-depleted reservoir fluid conductor are further co-operatively configured such that:
while the reservoir fluid is emplaced within the reservoir fluid-receiving zone, the reservoir fluid-conducting passage is disposed for conducting the reservoir fluid upwardly as a flow from the reservoir fluid receiving zone to the separation zone;
while the reservoir fluid flow is being conducted by the reservoir fluid-conducted passage and becoming emplaced within the separation zone, the reservoir fluid flow is separated into a gas-depleted reservoir fluid flow and a liquid-depleted reservoir fluid flow in response to at least buoyancy forces, with effect that: (i) a downwardly flow of the gas-depleted reservoir fluid, from the separation zone, is established, and (ii) an upwardly flow of the liquid-depleted reservoir fluid, from the separation zone, is established;
while the gas-depleted reservoir fluid flow is being separated from the reservoir fluid flow within the separation zone, the gas-depleted reservoir fluid flow is received and diverted by the flow diverter to the gas-depleted reservoir fluid conductor for conduction to the surface; and
while the liquid-depleted reservoir fluid flow is being separated from the reservoir fluid flow within the separation zone and is being flowed upwardly from the separation zone, the liquid-depleted reservoir fluid is conducted to the surface via the liquid-depleted reservoir fluid-conducting passage;
the gas separator further includes:
a reservoir fluid conductor; and
a sealed interface effector;
the reservoir fluid conductor includes:
a flow receiving communicator;
a flow discharging communicator; and
a reservoir fluid conductor flow passage;
wherein:
the reservoir fluid conductor flow passage defines a portion of the reservoir fluid-conducting passage;
the flow receiving communicator is effective for receiving the reservoir fluid from the reservoir fluid-receiving zone such that the conducting of the reservoir fluid, by the reservoir fluid-conducting passage, is effected while the reservoir fluid is being received by the flow receiving communicator from the reservoir fluid-receiving zone;
the reservoir fluid conductor flow passage is effective for conducting the reservoir fluid received by the flow receiving communicator to the flow discharging communicator; and
the flow discharging communicator is effective for discharging the reservoir fluid from the reservoir fluid conductor;
the flow diverter, the wellbore string, the reservoir fluid conductor, and the sealed interface effector are co-operatively configured such that:
an intermediate passage is disposed between the flow diverter and the wellbore string and defines another portion of the reservoir fluid-conducting passage;
the flow discharging communicator is disposed in flow communication with the reservoir fluid separation zone via the intermediate passage;
while reservoir fluid is being discharged from the flow discharging communicator, the discharged reservoir fluid is diverted by the sealed interface effector to the intermediate passage for conduction to the reservoir fluid separation zone;
a bubble coalescence zone is disposed between the flow discharging communicator and the intermediate passage; and
the minimum spacing distance from the flow discharging communicator to the flow diverter is at least five (5) feet.
19. A top hold down pump comprising:
a barrel;
wherein:
the barrel includes a flow passage-defining portion and a reinforcing layer
the flow passage-defining portion includes an inner surface and an outer surface;
the inner surface defines a flow passage of the barrel for conducting fluid being pressurized by the pump;
the reinforcing layer is coupled to the outer surface such that the reinforcing layer overlies at least a portion of the outer surface;
the material of construction of the flow passage-defining portion includes polymeric material; and
the reinforcing layer includes a plurality of continuous fibers.
20. The top hold down pump as claimed in claim 19 ;
wherein:
the continuous fibers are helically wound about the flow passage-defining portion with respect to a longitudinal axis of the flow passage-defining portion
21. The top hold down pump as claimed in claim 20 ;
wherein:
the helical winding is at a winding angle of from 40 degrees to 60 degrees.
22. The top hold down pump as claimed in claim 19 ;
wherein:
the continuous fibers are embedded within a polymeric matrix such that the reinforcing layer includes a reinforced polymeric material.
23. The top hold down pump as claimed in claim 22 ;
wherein:
the reinforced polymeric material is a continuous fiber reinforced thermoplastic material.
24. (canceled)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US17/843,148 US20220403727A1 (en) | 2021-06-21 | 2022-06-17 | Downhole production system with flow diverter for gas separation |
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Application Number | Priority Date | Filing Date | Title |
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US202163213028P | 2021-06-21 | 2021-06-21 | |
US17/843,148 US20220403727A1 (en) | 2021-06-21 | 2022-06-17 | Downhole production system with flow diverter for gas separation |
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US20220403727A1 true US20220403727A1 (en) | 2022-12-22 |
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ID=84490216
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Application Number | Title | Priority Date | Filing Date |
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US17/843,148 Pending US20220403727A1 (en) | 2021-06-21 | 2022-06-17 | Downhole production system with flow diverter for gas separation |
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CA (1) | CA3163752A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2229541A (en) * | 1939-05-12 | 1941-01-21 | John A Zublin | Apparatus for pumping oil wells |
US4676308A (en) * | 1985-11-22 | 1987-06-30 | Chevron Research Company | Down-hole gas anchor device |
US20160138380A1 (en) * | 2013-02-14 | 2016-05-19 | James N. McCoy | Gas Separator with Inlet Tail Pipe |
US20160222770A1 (en) * | 2015-01-30 | 2016-08-04 | Baker Hughes Incorporated | Charge Pump for Gravity Gas Separator of Well Pump |
US20170081952A1 (en) * | 2015-09-22 | 2017-03-23 | Production Tool Solution, Inc. | Gas separator |
US20180306019A1 (en) * | 2017-01-12 | 2018-10-25 | Heal Systems Lp | Apparatuses, systems, and methods for improving downhole separation of gases from liquids while producing reservoir fluid |
-
2022
- 2022-06-17 CA CA3163752A patent/CA3163752A1/en active Pending
- 2022-06-17 US US17/843,148 patent/US20220403727A1/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2229541A (en) * | 1939-05-12 | 1941-01-21 | John A Zublin | Apparatus for pumping oil wells |
US4676308A (en) * | 1985-11-22 | 1987-06-30 | Chevron Research Company | Down-hole gas anchor device |
US20160138380A1 (en) * | 2013-02-14 | 2016-05-19 | James N. McCoy | Gas Separator with Inlet Tail Pipe |
US20160222770A1 (en) * | 2015-01-30 | 2016-08-04 | Baker Hughes Incorporated | Charge Pump for Gravity Gas Separator of Well Pump |
US20170081952A1 (en) * | 2015-09-22 | 2017-03-23 | Production Tool Solution, Inc. | Gas separator |
US20180306019A1 (en) * | 2017-01-12 | 2018-10-25 | Heal Systems Lp | Apparatuses, systems, and methods for improving downhole separation of gases from liquids while producing reservoir fluid |
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CA3163752A1 (en) | 2022-12-21 |
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