CA2979469A1 - Well steam injection with flow control - Google Patents
Well steam injection with flow control Download PDFInfo
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- CA2979469A1 CA2979469A1 CA2979469A CA2979469A CA2979469A1 CA 2979469 A1 CA2979469 A1 CA 2979469A1 CA 2979469 A CA2979469 A CA 2979469A CA 2979469 A CA2979469 A CA 2979469A CA 2979469 A1 CA2979469 A1 CA 2979469A1
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- 238000010793 Steam injection (oil industry) Methods 0.000 title description 2
- 239000012530 fluid Substances 0.000 claims abstract description 55
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 14
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000000638 stimulation Effects 0.000 claims abstract description 14
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 13
- 238000010796 Steam-assisted gravity drainage Methods 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 4
- 230000002708 enhancing effect Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims 1
- 238000002347 injection Methods 0.000 abstract description 5
- 239000007924 injection Substances 0.000 abstract description 5
- 238000005553 drilling Methods 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 230000000712 assembly Effects 0.000 description 5
- 238000000429 assembly Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 150000003657 tungsten Chemical class 0.000 description 1
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Abstract
A technique enhances hydrocarbon fluid production. A well is formed in a subterranean region by drilling a borehole, e.g. a wellbore, which may have a lateral section. The lateral section facilitates thermal stimulation of the hydrocarbon fluids via injection of a hot fluid, e.g. steam, which lowers the viscosity of the desired hydrocarbon production fluid, e.g. oil. To facilitate production, a completion system is deployed into the borehole and comprises a screen combined with a base pipe and a sleeve body. The sleeve body comprises grooves and orifices which accommodate fluid flow. A
sleeve, e.g. a thermal sliding sleeve, may be combined with the sleeve body and may be actuated to either block or allow fluid flow through the orifices.
sleeve, e.g. a thermal sliding sleeve, may be combined with the sleeve body and may be actuated to either block or allow fluid flow through the orifices.
Description
1S16.1 193 PATENT APPLICATION
WELL STEAM INJECTION WITH FLOW CONTROL
CROSS-REFERENCE TO RELATED APPLICATION
[0001] The present document is based on and claims priority to US
Provisional Application Serial No.: 62/395462, filed September 16, 2016, and US
Provisional Application Serial No.: 62/395462, filed September 16, 2016, which are incorporated herein by reference in their entirety.
BACKGROUND
WELL STEAM INJECTION WITH FLOW CONTROL
CROSS-REFERENCE TO RELATED APPLICATION
[0001] The present document is based on and claims priority to US
Provisional Application Serial No.: 62/395462, filed September 16, 2016, and US
Provisional Application Serial No.: 62/395462, filed September 16, 2016, which are incorporated herein by reference in their entirety.
BACKGROUND
[0002] Hydrocarbon fluids such as oil and natural gas are obtained from a subterranean geologic formation, referred to as a reservoir, by drilling a well that penetrates the hydrocarbon bearing formation. Once a wellbore is drilled, various forms of well completion components may be installed to enable control over fluid flow and to enhance efficiency of producing the various fluids from the reservoir. In some areas, thermal stimulation may be implemented to heat and mobilize the oil by lowering its viscosity.
SUMMARY
SUMMARY
[0003] In general, the present disclosure provides a system and methodology for enhancing hydrocarbon fluid production. A well is formed in a subterranean region by drilling a borehole, e.g. a wellbore, which may have a lateral section. The lateral section facilitates thermal stimulation of the hydrocarbon fluids via injection of a hot fluid, e.g.
IS16.1193 steam, which lowers the viscosity of the desired hydrocarbon production fluid, e.g. oil.
To facilitate production, a completion system is deployed into the borehole and comprises a screen combined with a base pipe and a sleeve body. The sleeve body comprises grooves and orifices which accommodate fluid flow. A sleeve, e.g. a thermal sliding sleeve, may be combined with the sleeve body and may be actuated to either block or allow fluid flow through the orifices.
BRIEF DESCRIPTION OF THE DRAWINGS
IS16.1193 steam, which lowers the viscosity of the desired hydrocarbon production fluid, e.g. oil.
To facilitate production, a completion system is deployed into the borehole and comprises a screen combined with a base pipe and a sleeve body. The sleeve body comprises grooves and orifices which accommodate fluid flow. A sleeve, e.g. a thermal sliding sleeve, may be combined with the sleeve body and may be actuated to either block or allow fluid flow through the orifices.
BRIEF DESCRIPTION OF THE DRAWINGS
[0004] Certain embodiments will hereafter be described with reference to the accompanying drawings, wherein like reference numerals denote like elements.
It should be understood, however, that the accompanying figures illustrate various implementations described herein and are not meant to limit the scope of various technologies described herein, and:
It should be understood, however, that the accompanying figures illustrate various implementations described herein and are not meant to limit the scope of various technologies described herein, and:
[0005] Figure 1 is a schematic illustration of an example of a well system having a borehole with a lateral section and a completion deployed in the borehole, according to an embodiment of the disclosure;
[0006] Figure 2 is a cross-sectional illustration of a portion of the completion having a screen assembly, according to an embodiment of the disclosure; and
[0007] Figure 3 is a cross-sectional illustration of a portion of another example of the completion having a screen assembly, according to an embodiment of the disclosure.
DETAILED DESCRIPTION
DETAILED DESCRIPTION
[0008] In the following description, numerous details are set forth to provide an understanding of some illustrative embodiments of the present disclosure.
However, it will be understood by those of ordinary skill in the art that the system and/or 1S16.1 193 methodology may be practiced without these details and that numerous variations or modifications from the described embodiments may be possible.
However, it will be understood by those of ordinary skill in the art that the system and/or 1S16.1 193 methodology may be practiced without these details and that numerous variations or modifications from the described embodiments may be possible.
[0009] The disclosure herein generally relates to a system and methodology for enhancing hydrocarbon fluid production. The system and methodology may be used in wells which undergo thermal stimulation such as steam assisted gravity drainage (SAGD). By way of example, SAGD involves injecting steam into the formation through injection wells at a constant operating pressure in a steam chamber. The oil then flows via gravity into a production well. Operation of this type of thermally stimulated well and other types of thermally stimulated wells may be enhanced by utilizing completions as described herein.
100101 According to an embodiment, a well may be formed in a subterranean region by drilling a borehole, e.g. a wellbore, which has a lateral section.
For example, the wellbore may be drilled from the surface along a generally vertical section and then turned laterally and drilled to form a lateral section in the subterranean region having a reservoir of hydrocarbon fluid. In some applications, the lateral section may generally be a horizontal section although the horizontal section may have curved sections, inclined sections, declined sections, and/or other sections which deviate from generally horizontal.
[0011] In various well applications, the lateral section facilitates thermal stimulation of the hydrocarbon fluids via injection of a hot fluid, e.g.
steam, which lowers the viscosity of the desired hydrocarbon production fluid, e.g. oil. To facilitate production, a completion system is deployed into the borehole and comprises a screen combined with a base pipe and a sleeve body. The sleeve body may comprise grooves and orifices which accommodate fluid flow. A sleeve, e.g. a thermal sliding sleeve, may be combined with the sleeve body and may be actuated to either block or allow fluid flow through the orifices according to the parameters of a given stimulation and production operation.
IS16.1193 [0012] Referring generally to Figure 1, an example of a well system 20 is illustrated. In this embodiment, the well system 20 has a borehole 22, e.g. a wellbore, with a generally vertical section 24 and a lateral section 26, e.g. a generally horizontal section. In the illustrated example, the wellbore 22 is lined with a surface casing 28 which extends down from a wellhead 30. An intermediate casing 32 is disposed within surface casing 28 to extend farther downhole and at least partially into lateral section 26.
A completion 34 is deployed down through the intermediate casing 32 and may comprise a variety of features and components according to the parameters of a given thermal stimulation and/or production operation. By way of example, at least a portion of the completion 34 may extend into an open hole section 36 of lateral borehole section 26.
[0013] By way of example, the completion 34 may comprise a plurality of screen assemblies 38 disposed along a base pipe 40. In Figure 1, a centerline or axis of the screen assemblies 38 is marked by reference numeral 42. The screen assemblies 38 may comprise various components, such as sliding sleeves, e.g. thermal sliding sleeves, combined with screens. The screens allow the flow of production fluid to enter the completion 34 where it is directed through the sliding sleeve and into the base pipe 40.
The sliding sleeves may work in cooperation with inflow control devices, e.g.
orifices, to regulate the fluid flow. In other embodiments, the screens may not be used and the flow of hydrocarbons from the reservoir may be directed through the sliding sleeve and into the interior of base pipe 40.
100141 Referring generally to Figure 2, an embodiment of one of the screen assemblies 38 is partially illustrated in cross-section to provide an example of screen assembly components which may be utilized to facilitate thermal stimulation and production operations. In this example, the screen assembly 38 comprises a screen 44 which restricts reservoir sands and other particles from entering the screen assembly 38 and plugging a flow path. The screen assembly 38 also comprises a portion of the base pipe 40 which may include grooves 46, e.g. axial grooves, disposed along the exterior surface to increase flow area beneath the screen 44. By way of example, the grooves 46 may be milled into the base pipe 40, e.g. casing base pipe, along the length of the screen 1S16.1 193 44 or along a different, desired axial portion of the base pipe. The grooves 46 serve to enhance the flow area under the screen 44 so that the pressure drop is less substantial along the length of the screen 44, thus rendering the entire screen functional.
[0015] In the embodiment illustrated, a sleeve body 48 is located between sections of base pipe 40 and may be sealably secured to the sections of base pipe 40 via welds 50 or other suitable attachment mechanisms. The sleeve body 48 contains axial grooves 52, e.g. passages, and corresponding orifices 54, e.g. flow ports, positioned through the wall of the sleeve body 48 and oriented toward an internal flow region 56 of base pipe 40. By way of example, the axial grooves 52 and orifices 54 may be milled or otherwise formed within sleeve body 48.
[0016] A sleeve 58 is slidably mounted along the interior of sleeve body 48 to enable blocking or opening of the orifices 54. Suitable seals 60, e.g. 0-ring seals or other types of seals, may be positioned between sleeve 58 and sleeve body 48. Use of sleeve 58 provides flexibility over the control of fluids into and out of a thermal wellbore and enables the complete shut off of fluid flow.
[0017] By way of example, the sleeve 58 may be in the form of a thermal application sleeve. One example of such a thermal sliding sleeve is the premiumportTM
thermal tool available from Absolute Completion Technologies, located in Calgary Canada. It should be noted other mechanisms may be used to provide access to the surrounding formation/reservoir, e.g. perforating a liner after a warmup phase is completed to initiate an SAGD phase or production phase.
[0018] In the example illustrated, the sleeve body 48 also is combined with a diverter insert 62 positioned proximate orifices 54 to direct fluid flow from perpendicular flow with respect base pipe 40, e.g. radial flow, to axial flow as fluid flows through orifices 54. By way of example, the diverter insert 62 may be in the form of a tungsten diverter insert or other suitable insert formed of an appropriate material for use in thermal stimulation operations. In some embodiments, the diverter insert 62 may be positioned IS16.1193 generally centrally within screen assembly 38 such that a screen 44 is located at each axial end.
[0019] Additionally, the diverter insert 62 may comprise curved regions 64 constructed with a curvature such that flow from internal flow region 56 through orifices 54 is split in each axial direction, e.g. equally split in each axial direction. The curvature of curved regions 64 also may be selected to change the flow of fluid from a perpendicular flow, e.g. radial flow, to an axial flow in a manner which reduces the chances of erosion of an outer sleeve 66.
[0020] According to the embodiment illustrated, a nozzle ring 68 may be fixed to the base pipe 40 via a weld 70 or other suitable attachment mechanism. The nozzle ring 68 contains nozzles 72 which function to choke flow into or out of the surrounding formation/reservoir. The outer sleeve 66 may be affixed to nozzle ring 68 via a weld 74 or other suitable attachment mechanism so as to contain pressure integrity around the nozzle ring 68 and to ensure proper function of nozzles 72. The welds 70, 74 (or other suitable attachment mechanisms) create a pressure seal which causes the entire fluid flow to pass through nozzles 72.
[0021] A nozzle access sleeve 76 may be releasably secured between nozzle ring 68 and an end ring 78 via, for example, threaded engagement or other releasable engagement mechanism. The nozzle access sleeve 76 allows access to the nozzle ring 68 so that nozzles 72 may be changed out to provide a different size/choke. For example, the nozzle access sleeve 76 may be removed to enable last-minute changes in the flow profile of the well based on factors such as temperature data and reservoir characteristics.
The end ring 78 may be constructed to facilitate flow along grooves 46. For example, the end ring 78 may be welded to the base pipe 40 in a stitch pattern which allows fluid flow to move between it and the base pipe 40 within grooves 46.
[0022] Referring generally to Figure 3, another embodiment of one of the screen assemblies 38 is partially illustrated in cross-section to provide an example of screen IS16.1193 assembly components which may be utilized to facilitate thermal stimulation and production operations. In this example, the screen assembly 38 may have many components similar to that described above with reference to Figure 2. For example, this embodiment may utilize components similar to screen 44, base pipe 40 with axial grooves 46, sleeve body 48 with axial grooves/passages 52 and orifices 54, sleeve 58, and outer sleeve 66. The form and arrangement of these components may vary somewhat according to the parameters of a given operation.
[0023] The embodiment illustrated in Figure 3, however, utilizes a portion 80 of base pipe 40 having a plurality of holes 82 oriented generally radially therethrough to direct fluid, e.g. steam, from the internal passage 56 toward the nozzles/chokes 72. In this example, the nozzles/chokes 72 may be inserted into or built into the sleeve body 48 along the flow path therethrough. The plurality of holes 82 enable a smooth transition of fluid from internal region 56 to the area of nozzles/chokes 72. In some applications, fluid also may be flowed in reverse of the injection/thermal stimulation direction as indicated by arrows 84.
[0024] According to an operational example, the completion 34 is run downhole with the flow ports/orifices 54 closed off via thermal sliding sleeves 58.
Steam or other hot fluid is then injected at a toe of the well but it does not enter the surrounding formation/reservoir. The heat is transferred to the reservoir via conduction.
The well is then transitioned to a circulation phase or directly to the SAGD phase by opening the sliding sleeves 58. When the well is at a suitable temperature, production may be commenced.
[0025] Depending on the parameters of a given application, the wellbore geometries described herein may be adjusted according to the type, size, orientation, and other features of the well system 20. Additionally, the size, location and configuration of various components of completion 34 may be changed. The flow patterns, coupling mechanisms, orifices, screen arrangements, and other components and features also may IS16.1193 be changed according to parameters of a given thermal stimulation and production operation.
100261 Although a few embodiments of the system and methodology have been described in detail above, those of ordinary skill in the art will readily appreciate that many modifications are possible without materially departing from the teachings of this disclosure. Accordingly, such modifications are intended to be included within the scope of this disclosure as defined in the claims.
100101 According to an embodiment, a well may be formed in a subterranean region by drilling a borehole, e.g. a wellbore, which has a lateral section.
For example, the wellbore may be drilled from the surface along a generally vertical section and then turned laterally and drilled to form a lateral section in the subterranean region having a reservoir of hydrocarbon fluid. In some applications, the lateral section may generally be a horizontal section although the horizontal section may have curved sections, inclined sections, declined sections, and/or other sections which deviate from generally horizontal.
[0011] In various well applications, the lateral section facilitates thermal stimulation of the hydrocarbon fluids via injection of a hot fluid, e.g.
steam, which lowers the viscosity of the desired hydrocarbon production fluid, e.g. oil. To facilitate production, a completion system is deployed into the borehole and comprises a screen combined with a base pipe and a sleeve body. The sleeve body may comprise grooves and orifices which accommodate fluid flow. A sleeve, e.g. a thermal sliding sleeve, may be combined with the sleeve body and may be actuated to either block or allow fluid flow through the orifices according to the parameters of a given stimulation and production operation.
IS16.1193 [0012] Referring generally to Figure 1, an example of a well system 20 is illustrated. In this embodiment, the well system 20 has a borehole 22, e.g. a wellbore, with a generally vertical section 24 and a lateral section 26, e.g. a generally horizontal section. In the illustrated example, the wellbore 22 is lined with a surface casing 28 which extends down from a wellhead 30. An intermediate casing 32 is disposed within surface casing 28 to extend farther downhole and at least partially into lateral section 26.
A completion 34 is deployed down through the intermediate casing 32 and may comprise a variety of features and components according to the parameters of a given thermal stimulation and/or production operation. By way of example, at least a portion of the completion 34 may extend into an open hole section 36 of lateral borehole section 26.
[0013] By way of example, the completion 34 may comprise a plurality of screen assemblies 38 disposed along a base pipe 40. In Figure 1, a centerline or axis of the screen assemblies 38 is marked by reference numeral 42. The screen assemblies 38 may comprise various components, such as sliding sleeves, e.g. thermal sliding sleeves, combined with screens. The screens allow the flow of production fluid to enter the completion 34 where it is directed through the sliding sleeve and into the base pipe 40.
The sliding sleeves may work in cooperation with inflow control devices, e.g.
orifices, to regulate the fluid flow. In other embodiments, the screens may not be used and the flow of hydrocarbons from the reservoir may be directed through the sliding sleeve and into the interior of base pipe 40.
100141 Referring generally to Figure 2, an embodiment of one of the screen assemblies 38 is partially illustrated in cross-section to provide an example of screen assembly components which may be utilized to facilitate thermal stimulation and production operations. In this example, the screen assembly 38 comprises a screen 44 which restricts reservoir sands and other particles from entering the screen assembly 38 and plugging a flow path. The screen assembly 38 also comprises a portion of the base pipe 40 which may include grooves 46, e.g. axial grooves, disposed along the exterior surface to increase flow area beneath the screen 44. By way of example, the grooves 46 may be milled into the base pipe 40, e.g. casing base pipe, along the length of the screen 1S16.1 193 44 or along a different, desired axial portion of the base pipe. The grooves 46 serve to enhance the flow area under the screen 44 so that the pressure drop is less substantial along the length of the screen 44, thus rendering the entire screen functional.
[0015] In the embodiment illustrated, a sleeve body 48 is located between sections of base pipe 40 and may be sealably secured to the sections of base pipe 40 via welds 50 or other suitable attachment mechanisms. The sleeve body 48 contains axial grooves 52, e.g. passages, and corresponding orifices 54, e.g. flow ports, positioned through the wall of the sleeve body 48 and oriented toward an internal flow region 56 of base pipe 40. By way of example, the axial grooves 52 and orifices 54 may be milled or otherwise formed within sleeve body 48.
[0016] A sleeve 58 is slidably mounted along the interior of sleeve body 48 to enable blocking or opening of the orifices 54. Suitable seals 60, e.g. 0-ring seals or other types of seals, may be positioned between sleeve 58 and sleeve body 48. Use of sleeve 58 provides flexibility over the control of fluids into and out of a thermal wellbore and enables the complete shut off of fluid flow.
[0017] By way of example, the sleeve 58 may be in the form of a thermal application sleeve. One example of such a thermal sliding sleeve is the premiumportTM
thermal tool available from Absolute Completion Technologies, located in Calgary Canada. It should be noted other mechanisms may be used to provide access to the surrounding formation/reservoir, e.g. perforating a liner after a warmup phase is completed to initiate an SAGD phase or production phase.
[0018] In the example illustrated, the sleeve body 48 also is combined with a diverter insert 62 positioned proximate orifices 54 to direct fluid flow from perpendicular flow with respect base pipe 40, e.g. radial flow, to axial flow as fluid flows through orifices 54. By way of example, the diverter insert 62 may be in the form of a tungsten diverter insert or other suitable insert formed of an appropriate material for use in thermal stimulation operations. In some embodiments, the diverter insert 62 may be positioned IS16.1193 generally centrally within screen assembly 38 such that a screen 44 is located at each axial end.
[0019] Additionally, the diverter insert 62 may comprise curved regions 64 constructed with a curvature such that flow from internal flow region 56 through orifices 54 is split in each axial direction, e.g. equally split in each axial direction. The curvature of curved regions 64 also may be selected to change the flow of fluid from a perpendicular flow, e.g. radial flow, to an axial flow in a manner which reduces the chances of erosion of an outer sleeve 66.
[0020] According to the embodiment illustrated, a nozzle ring 68 may be fixed to the base pipe 40 via a weld 70 or other suitable attachment mechanism. The nozzle ring 68 contains nozzles 72 which function to choke flow into or out of the surrounding formation/reservoir. The outer sleeve 66 may be affixed to nozzle ring 68 via a weld 74 or other suitable attachment mechanism so as to contain pressure integrity around the nozzle ring 68 and to ensure proper function of nozzles 72. The welds 70, 74 (or other suitable attachment mechanisms) create a pressure seal which causes the entire fluid flow to pass through nozzles 72.
[0021] A nozzle access sleeve 76 may be releasably secured between nozzle ring 68 and an end ring 78 via, for example, threaded engagement or other releasable engagement mechanism. The nozzle access sleeve 76 allows access to the nozzle ring 68 so that nozzles 72 may be changed out to provide a different size/choke. For example, the nozzle access sleeve 76 may be removed to enable last-minute changes in the flow profile of the well based on factors such as temperature data and reservoir characteristics.
The end ring 78 may be constructed to facilitate flow along grooves 46. For example, the end ring 78 may be welded to the base pipe 40 in a stitch pattern which allows fluid flow to move between it and the base pipe 40 within grooves 46.
[0022] Referring generally to Figure 3, another embodiment of one of the screen assemblies 38 is partially illustrated in cross-section to provide an example of screen IS16.1193 assembly components which may be utilized to facilitate thermal stimulation and production operations. In this example, the screen assembly 38 may have many components similar to that described above with reference to Figure 2. For example, this embodiment may utilize components similar to screen 44, base pipe 40 with axial grooves 46, sleeve body 48 with axial grooves/passages 52 and orifices 54, sleeve 58, and outer sleeve 66. The form and arrangement of these components may vary somewhat according to the parameters of a given operation.
[0023] The embodiment illustrated in Figure 3, however, utilizes a portion 80 of base pipe 40 having a plurality of holes 82 oriented generally radially therethrough to direct fluid, e.g. steam, from the internal passage 56 toward the nozzles/chokes 72. In this example, the nozzles/chokes 72 may be inserted into or built into the sleeve body 48 along the flow path therethrough. The plurality of holes 82 enable a smooth transition of fluid from internal region 56 to the area of nozzles/chokes 72. In some applications, fluid also may be flowed in reverse of the injection/thermal stimulation direction as indicated by arrows 84.
[0024] According to an operational example, the completion 34 is run downhole with the flow ports/orifices 54 closed off via thermal sliding sleeves 58.
Steam or other hot fluid is then injected at a toe of the well but it does not enter the surrounding formation/reservoir. The heat is transferred to the reservoir via conduction.
The well is then transitioned to a circulation phase or directly to the SAGD phase by opening the sliding sleeves 58. When the well is at a suitable temperature, production may be commenced.
[0025] Depending on the parameters of a given application, the wellbore geometries described herein may be adjusted according to the type, size, orientation, and other features of the well system 20. Additionally, the size, location and configuration of various components of completion 34 may be changed. The flow patterns, coupling mechanisms, orifices, screen arrangements, and other components and features also may IS16.1193 be changed according to parameters of a given thermal stimulation and production operation.
100261 Although a few embodiments of the system and methodology have been described in detail above, those of ordinary skill in the art will readily appreciate that many modifications are possible without materially departing from the teachings of this disclosure. Accordingly, such modifications are intended to be included within the scope of this disclosure as defined in the claims.
Claims (20)
1. A system for enhancing hydrocarbon fluid production, comprising:
a screen assembly having:
a screen to restrict particles from a well fluid flowing through the screen from a reservoir;
a base pipe extending into the screen and having grooves arranged along an exterior of the base pipe to increase flow under the screen;
a sleeve body coupled with the base pipe and having axial passages in fluid communication with orifices which enable fluid communication with an internal flow region of the base pipe;
a sleeve slidably coupled with the sleeve body and movable to positions allowing flow or blocking flow through the orifices; and a diverter insert positioned to direct fluid flow from a radial flow to an axial flow as the fluid moves through the orifices and into the axial passages.
a screen assembly having:
a screen to restrict particles from a well fluid flowing through the screen from a reservoir;
a base pipe extending into the screen and having grooves arranged along an exterior of the base pipe to increase flow under the screen;
a sleeve body coupled with the base pipe and having axial passages in fluid communication with orifices which enable fluid communication with an internal flow region of the base pipe;
a sleeve slidably coupled with the sleeve body and movable to positions allowing flow or blocking flow through the orifices; and a diverter insert positioned to direct fluid flow from a radial flow to an axial flow as the fluid moves through the orifices and into the axial passages.
2. The system as recited in claim 1, wherein the screen assembly further comprises a nozzle ring fixed to the base pipe and containing nozzles to choke a flow of fluid routed through the screen assembly.
3. The system as recited in claim 2, wherein the screen assembly further comprises an outer sleeve to contain pressure integrity around the nozzle ring and to ensure proper function of the nozzles in the nozzle ring.
4. The system as recited in claim 3, wherein the screen assembly further comprises a nozzle access sleeve which is releasable to allow access to change out the nozzles.
5. The system as recited in claim 4, wherein the screen assembly further comprises an end ring connecting the screen to the nozzle access sleeve and to the base pipe.
6. The system as recited in claim 1, wherein the diverter insert is formed of tungsten.
7. The system as recited in claim 1, wherein the sleeve body is welded to sections of the base pipe.
8. The system as recited in claim 1, wherein a portion of the base pipe comprises a plurality of radial holes.
9. The system as recited in claim 1, wherein the sleeve is a thermal sliding sleeve.
10. A method, comprising:
providing a screen assembly with a screen, a base pipe within the screen, a sleeve body coupled with the base pipe, and a thermal sliding sleeve slidably coupled with the sleeve body to selectively block fluid flow through an orifice in the sleeve body;
conveying the screen assembly downhole into a lateral section of a wellbore;
performing a steam assisted gravity drainage (SAGD) heat stimulation of a reservoir of well fluid above the lateral section; and placing the thermal sliding sleeve in a position for production of well fluid through the screen, through the sleeve body, and into the base pipe via the orifice.
providing a screen assembly with a screen, a base pipe within the screen, a sleeve body coupled with the base pipe, and a thermal sliding sleeve slidably coupled with the sleeve body to selectively block fluid flow through an orifice in the sleeve body;
conveying the screen assembly downhole into a lateral section of a wellbore;
performing a steam assisted gravity drainage (SAGD) heat stimulation of a reservoir of well fluid above the lateral section; and placing the thermal sliding sleeve in a position for production of well fluid through the screen, through the sleeve body, and into the base pipe via the orifice.
11. The method as recited in claim 10, further comprising using nozzles in the screen assembly to choke flow of fluid therethrough.
12. The method as recited in claim 11, further comprising locating the nozzles in a nozzle ring fixed to the base pipe.
13. The method as recited in claim 12, further comprising using an outer sleeve to contain pressure integrity around the nozzle ring and to ensure proper function of the nozzles.
14. The method as recited in claim 13, further comprising using a nozzle access sleeve to provide access to the nozzle ring for changing out the nozzles.
15. The method as recited in claim 11, further comprising directing fluid flow through the sleeve body with a diverter.
16. The method as recited in claim 15, further comprising providing the diverter with curved surfaces to direct fluid flow from a radial flow to an axial flow as fluid moves through the orifice and into a plurality of axial passages of the diverter.
17. The method as recited in claim II, wherein placing comprises placing the thermal sliding sleeve in positions blocking or allowing flow through a plurality of the orifices according to the thermal stimulation or production operation being performed.
18. A system, comprising:
a screen assembly having:
a screen to restrict particles from a well fluid flowing through the screen from a reservoir;
a base pipe extending into the screen and having grooves arranged along an exterior of the base pipe to increase flow under the screen;
a sleeve body coupled with the base pipe and having axial passages in fluid communication with orifices which enable fluid communication with an internal flow region of the base pipe;
a sleeve slidably coupled with the sleeve body and movable to positions allowing flow or blocking flow through the orifices;
a diverter insert positioned to direct fluid flow from a radial flow to an axial flow as the fluid moves through the orifices and into the axial passages;
a nozzle ring fixed to the base pipe and containing nozzles to choke fluid flow through the screen assembly;
an outer sleeve to contain pressure integrity around the nozzle ring and to ensure proper function of the nozzles;
a nozzle access sleeve releasably positioned to allow access to the nozzles;
and an end ring connecting the screen to the nozzle access sleeve and the base pipe.
a screen assembly having:
a screen to restrict particles from a well fluid flowing through the screen from a reservoir;
a base pipe extending into the screen and having grooves arranged along an exterior of the base pipe to increase flow under the screen;
a sleeve body coupled with the base pipe and having axial passages in fluid communication with orifices which enable fluid communication with an internal flow region of the base pipe;
a sleeve slidably coupled with the sleeve body and movable to positions allowing flow or blocking flow through the orifices;
a diverter insert positioned to direct fluid flow from a radial flow to an axial flow as the fluid moves through the orifices and into the axial passages;
a nozzle ring fixed to the base pipe and containing nozzles to choke fluid flow through the screen assembly;
an outer sleeve to contain pressure integrity around the nozzle ring and to ensure proper function of the nozzles;
a nozzle access sleeve releasably positioned to allow access to the nozzles;
and an end ring connecting the screen to the nozzle access sleeve and the base pipe.
19. The system as recited in claim 18, wherein the sleeve is a thermal sliding sleeve.
20. The system as recited in claim 18, wherein a portion of the base pipe comprises a plurality of radial holes.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201662395456P | 2016-09-16 | 2016-09-16 | |
| US201662395462P | 2016-09-16 | 2016-09-16 | |
| US62/395,462 | 2016-09-16 | ||
| US62/395,456 | 2016-09-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2979469A1 true CA2979469A1 (en) | 2018-03-16 |
Family
ID=61617263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2979469A Pending CA2979469A1 (en) | 2016-09-16 | 2017-09-15 | Well steam injection with flow control |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2979469A1 (en) |
-
2017
- 2017-09-15 CA CA2979469A patent/CA2979469A1/en active Pending
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