CN202300355U - Polymer multi-passage separable-injection tubing column - Google Patents
Polymer multi-passage separable-injection tubing column Download PDFInfo
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- CN202300355U CN202300355U CN2011203259965U CN201120325996U CN202300355U CN 202300355 U CN202300355 U CN 202300355U CN 2011203259965 U CN2011203259965 U CN 2011203259965U CN 201120325996 U CN201120325996 U CN 201120325996U CN 202300355 U CN202300355 U CN 202300355U
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- injection
- packer
- pipe
- central tube
- oil pipe
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Abstract
The utility model relates to a polymer multi-passage separable-injection tubing column, which comprises the tubing. The lower end of the tubing is connected with a primary packer, a primary injection allocator, a secondary packer, a primary injection allocator, a tertiary packer and a tertiary injection allocator in sequence, at least two inner pipes are arranged in the tubing, the inside of a center pipe of each packer is provided with at least two through holes axially, the through holes are correspondingly matched with the inner pipes in the tubing, at least two inner injection allocator pipes are arranged in the injection allocators, the inner pipes of the injection allocator are correspondingly matched with the through holes of the center pipes, annular passages between outer pipes and the inner pipes are communicated with packer passages of the packers correspondingly, the packer passages of the packers are communicated with injection allocator passages of the injection allocators correspondingly, and the separable-injection pipe column with at least three passages is formed by the structures. By the tubing column, polymer injection of different pressure and different mass into a polymer injected well on the ground by multiple layers can be realized, testing process is simplified and layering water quantity distributing efficiency is improved.
Description
Technical field
The utility model relates to oil recovery field, oil field a kind of polymer multichannel oil pipe separate injection tubing string.
Background technology
At present use in the oil field gathers and drives branch notes technology and mainly comprise concentric zonal injection technology of ring-like relief groove and single tube branch matter dividing potential drop injection technology.Can not realize injecting with time-division matter dividing potential drop for two sections above intervals of level, and test technology is complicated, stratified water amount allotment efficient is low.
Summary of the invention
In order to solve the problem that exists in the background technology; The utility model provides a kind of polymer multichannel oil pipe separate injection tubing string; The polymer injection well that this tubing string divides multilayer to inject to the down-hole is realized the branch matter dividing potential drop injection of polymer on ground, simplified test technology, has improved stratified water amount allotment efficient.
The technical scheme of the utility model is: this polymer multichannel oil pipe separate injection tubing string comprises oil pipe; The oil pipe lower end connects one-level packer, one-level injection allocation device, secondary packer, secondary injection allocation device, three grades of packers, three grades of injection allocation devices successively; Be provided with pipe at least two in the described oil pipe; The central tube inner shaft of described packer is to being provided with 2 through holes at least; Through hole and the interior corresponding cooperation of interior pipe of oil pipe are provided with pipe at least 2 injection allocation devices in the described injection allocation device, pipe and the interior corresponding cooperation of through hole of central tube in the injection allocation device; Corresponding the communicating of packer passage of circular passage and packer between the outer tube of oil pipe and the interior pipe, corresponding the communicating of injection allocation device passage of the packer passage of packer and injection allocation device; Well head is provided with one-level injection channel, secondary injection channel, three grades of injection channels; The circular passage communicates between the outer tube of one-level injection channel and oil pipe and the interior pipe; The secondary injection channel communicates with dividing the notes passage; Three grades of injection channels communicate with dividing the notes passage, and said structure has been formed at least 3 passage separate injection tubing strings.
The utlity model has following beneficial effect: the utility model can be realized the branch matter dividing potential drop injection of two sections above intervals of level, and each layer injection rate can be controlled at well head, simplified test technology, has improved stratified water amount allotment efficient; The 2nd, the pressure of each interval can control to adjust through at well head different injection allocation cores being installed with polymer molecular weight, and dividing potential drop branch matter is injected effect and guaranteed easily.
Description of drawings:
Accompanying drawing 1 is the utility model structural representation;
Accompanying drawing 2 is structural representations of oil pipe;
Accompanying drawing 3 is A-A sectional views of Fig. 2;
Accompanying drawing 4 is packer construction sketch mapes;
Accompanying drawing 5 is injection allocation device structural representations;
Accompanying drawing 6 is A-A sectional views of Fig. 5;
Accompanying drawing 7 is left views of accompanying drawing 4.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is described further:
Shown in accompanying drawing; This polymer multichannel oil pipe separate injection tubing string comprises oil pipe 5; Oil pipe 5 lower ends connect one-level packer 7, one-level injection allocation device 10, secondary packer 8, secondary injection allocation device 11, three grades of packers 9, three grades of injection allocation devices 12 successively; Be provided with in the oil pipe 5 and manage 5-1 at least in two, the central tube 1-2 inner shaft of described packer is to being provided with 2 through hole 13-2 at least, through hole 13-2 and the interior corresponding cooperation of interior pipe 5-1 of oil pipe; Be provided with pipe 6-3 at least 2 injection allocation devices in the described injection allocation device; Pipe 6-3 and the interior corresponding cooperation of through hole 13-2 of central tube 1-2 in the injection allocation device, corresponding the communicating of packer passage 14-2 of circular passage and packer between the outer tube 4-1 of oil pipe and the interior pipe 5-1, corresponding the communicating of injection allocation device passage 9-3 of the packer passage 14-2 of packer and injection allocation device; Well head is provided with one-level injection channel 1, secondary injection channel 2, three grades of injection channels 3; The circular passage communicates between the outer tube 4-1 of one-level injection channel 1 and oil pipe and the interior pipe 5-1; Secondary injection channel 2 communicates with dividing notes passage 4, and three grades of injection channels 3 communicate with dividing notes passage 6.
The one-level injection channel 1 of ground installation is connected with one-level injection allocation device 10 through the oil pipe annular space, and realizes first floor is injected through the packer passage 14-2 of one-level packer 7 set inside; Secondary injection channel 2 is connected with secondary injection allocation device 11 through interior pipe 5-1, and realizes the second layer is injected through the through hole 13-2 of secondary packer 8 set inside; Three grades of injection channels 3 are connected with three grades of injection allocation devices 12 through pipe 5-1 in the another one, and realize the 3rd layer of injection through the another one through hole 13-2 of three grades of packer 9 set inside.Said structure has been formed at least 3 passage separate injection tubing strings.
Packer comprises central tube 1-2, and central tube 1-2 inner shaft is to being provided with 2 through hole 13-2 at least, through hole 13-2 and the interior corresponding cooperation of interior pipe 5-1 of oil pipe; Central tube 1-2 axially is provided with inclined to one side hole, is provided with well-flushing sliding sleeve 11-2 in the hole partially, and the central tube 1-2 wall that well-flushing sliding sleeve 11-2 is corresponding is provided with liquid pass hole; Well-flushing sliding sleeve 11-2 below is provided with well-flushing packed-piston 12-2, and the outer wall of central tube 1-2 is with packing element 2-2, spacer ring 3-2, is provided with the gap between the boss of packing element 2-2 and central tube 1-2; Packing element 2-2 below is provided with lower casing body 5-2, and lower casing body 5-2 lower end internal thread connects reducer union 8-2, and central tube 1-2 lower end external screw thread connects reducer union 8-2; The upper surface of reducer union 8-2 is provided with and sets piston 6-2; The central tube 1-2 wall corresponding with setting piston 6-2 is provided with via hole, sets piston 6-2 top and is the interior cover of lower casing body 5-2, and interior cover is fixed with jump ring 4-2 through cutting off pin; Be provided with sealing short circuit 7-2 in the reducer union 8-2; Sealing short circuit 7-2 upper end is tightly connected with central tube 1-2, and sealing short circuit 7-2 lower end is connected with short tube, and short tube communicates with through hole 13-2 is corresponding; The outer wall of short tube is with multitube short circuit 9-2, and multitube short circuit 9-2 bottom is connected with ready-packaged joint 10-2.A plurality of paths of multi-path packer set inside can be connected with the passage of multi-path oil pipe; Sealing is adopted at two ends, and short circuit is tightened; Has the anti-flushing well passage.
The injection allocation device comprises upper binding head 1-3; Upper binding head 1-3 has injection allocation device passage 9-3, and upper binding head 1-3 lower end is threaded io pipe 6-3 in few 2 injection allocation devices, and pipe 6-3 outer wall is provided with and connects short circuit 3-3 in the injection allocation device; Connecting short circuit 3-3 upper end is threaded with upper binding head 1-3; Connection short circuit 3-3 lower end is threaded and becomes joint 5-3, and upper binding head 1-3 bottom outer wall is with packed-piston 2-3, and the bottom of packed-piston 2-3 is connected with change joint 5-3 through shear pin 4-3; Become joint 5-3 lower thread and be connected with lower contact 8-3, lower contact 8-3 is with snap joint 7-3 outward.Multi-path injection allocation device is connected with the multi-path oil pipe, and the injection allocation duct is corresponding with the interval of design, accurately controls in the face of individual layer injects with being implemented in.
Claims (1)
1. polymer multichannel oil pipe separate injection tubing string; Comprise oil pipe (5); Oil pipe (5) lower end connects one-level packer (7), one-level injection allocation device (10), secondary packer (8), secondary injection allocation device (11), three grades of packers (9), three grades of injection allocation devices (12) successively; It is characterized in that: be provided with pipe (5-1) at least two in the described oil pipe (5); The central tube of described packer (1-2) inner shaft is to being provided with 2 through holes (13-2) at least; Through hole (13-2) and the interior corresponding cooperation of interior pipe (5-1) of oil pipe are provided with pipe (6-3) at least 2 injection allocation devices in the described injection allocation device, pipe (6-3) and the interior corresponding cooperation of through hole (13-2) of central tube (1-2) in the injection allocation device; Corresponding the communicating of packer passage (14-2) of circular passage and packer between outer tube of oil pipe (4-1) and the interior pipe (5-1), corresponding the communicating of injection allocation device passage (9-3) of the packer passage (14-2) of packer and injection allocation device; Well head is provided with one-level injection channel (1), secondary injection channel (2), three grades of injection channels (3); The circular passage communicates between the outer tube (4-1) of one-level injection channel (1) and oil pipe and the interior pipe (5-1); Secondary injection channel (2) communicates with dividing notes passages (4); Three grades of injection channels (3) communicate with dividing notes passages (6), and said structure has been formed at least 3 passage separate injection tubing strings.
2, polymer multichannel oil pipe separate injection tubing string according to claim 1; It is characterized in that: oil pipe (5) comprises top connection (2-1); Top connection (2-1) upper end endoporus is provided with sealing ring (1-1), and top connection (2-1) lower end is connected with outer tube (4-1), is provided with connector (3-1) in the top connection (2-1); Connector (3-1) lower end screw thread is connected with pipe (5-1) at least two; Interior pipe (5-1) outer wall is interval with body resistance-strengthening tablets (6-1), and interior pipe (5-1) lower end screw thread is connected with down box cupling (8-1), and following box cupling (8-1) lower end screw thread is connected with connection-peg (10-1); Connection-peg (10-1) upper surface is provided with spacer (9-1), and following box cupling (8-1) and connection-peg (10-1) outer wall are with adapter sleeve (7-1); Described packer comprises central tube (1-2), and central tube (1-2) inner shaft is to being provided with 2 through holes (13-2) at least, through hole (13-2) and the interior corresponding cooperation of interior pipe (5-1) of oil pipe; Central tube (1-2) axially is provided with inclined to one side hole, is provided with well-flushing sliding sleeve (11-2) in the hole partially, and central tube (1-2) wall that well-flushing sliding sleeve (11-2) is corresponding is provided with liquid pass hole; Well-flushing sliding sleeve (11-2) below is provided with well-flushing packed-piston (12-2), and the outer wall of central tube (1-2) is with packing element (2-2), spacer ring (3-2), is provided with the gap between the boss of packing element (2-2) and central tube (1-2); Packing element (2-2) below is provided with lower casing body (5-2), and lower casing body (5-2) lower end internal thread connects reducer union (8-2), and central tube (1-2) lower end external screw thread connects reducer union (8-2); The upper surface of reducer union (8-2) is provided with and sets piston (6-2); Central tube (1-2) wall corresponding with setting piston (6-2) is provided with via hole, sets piston (6-2) top and is the interior cover of lower casing body (5-2), and interior cover is fixed with jump ring (4-2) through cutting off pin; Be provided with sealing short circuit (7-2) in the reducer union (8-2); Sealing short circuit (7-2) upper end is tightly connected with central tube (1-2), and sealing short circuit (7-2) lower end is connected with short tube, short tube and corresponding the communicating of through hole (13-2); The outer wall of short tube is with multitube short circuit (9-2), and multitube short circuit (9-2) bottom is connected with ready-packaged joint (10-2); Described injection allocation device comprises upper binding head (1-3); Upper binding head (1-3) has injection allocation device passage (9-3), and upper binding head (1-3) lower end is threaded io pipe (6-3) in few 2 injection allocation devices, and pipe (6-3) outer wall is provided with and connects short circuit (3-3) in the injection allocation device; Connecting short circuit (3-3) upper end is threaded with upper binding head (1-3); Connection short circuit (3-3) lower end is threaded and becomes joint (5-3), and upper binding head (1-3) bottom outer wall is with packed-piston (2-3), and the bottom of packed-piston (2-3) is connected with change joint (5-3) through shear pin (4-3); Become joint (5-3) lower thread and be connected with lower contact (8-3), be with snap joint (7-3) outside the lower contact (8-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203259965U CN202300355U (en) | 2011-09-01 | 2011-09-01 | Polymer multi-passage separable-injection tubing column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203259965U CN202300355U (en) | 2011-09-01 | 2011-09-01 | Polymer multi-passage separable-injection tubing column |
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| Publication Number | Publication Date |
|---|---|
| CN202300355U true CN202300355U (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203259965U Expired - Lifetime CN202300355U (en) | 2011-09-01 | 2011-09-01 | Polymer multi-passage separable-injection tubing column |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337873A (en) * | 2011-09-01 | 2012-02-01 | 中国石油天然气股份有限公司 | Multi-channel separate injection tubular column of oil tube for polymers |
| CN105089588A (en) * | 2014-05-14 | 2015-11-25 | 中国石油天然气股份有限公司 | Ternary composite drive double-layer pipe eccentric dispensing device |
| CN107091918A (en) * | 2017-06-19 | 2017-08-25 | 东北石油大学 | Depositing experimental provision and its method for carrying out laboratory experiment |
| CN109322648A (en) * | 2017-07-31 | 2019-02-12 | 中国石油天然气股份有限公司 | A kind of flushing separate injection tubing string and application method |
| CN110374564A (en) * | 2019-07-25 | 2019-10-25 | 东北石油大学 | A kind of pressure and viscosity can survey the bleeder mechanism and its measurement method of tune in real time |
-
2011
- 2011-09-01 CN CN2011203259965U patent/CN202300355U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337873A (en) * | 2011-09-01 | 2012-02-01 | 中国石油天然气股份有限公司 | Multi-channel separate injection tubular column of oil tube for polymers |
| CN102337873B (en) * | 2011-09-01 | 2014-09-17 | 中国石油天然气股份有限公司 | Multi-channel separate injection tubular column of oil tube for polymers |
| CN105089588A (en) * | 2014-05-14 | 2015-11-25 | 中国石油天然气股份有限公司 | Ternary composite drive double-layer pipe eccentric dispensing device |
| CN107091918A (en) * | 2017-06-19 | 2017-08-25 | 东北石油大学 | Depositing experimental provision and its method for carrying out laboratory experiment |
| CN109322648A (en) * | 2017-07-31 | 2019-02-12 | 中国石油天然气股份有限公司 | A kind of flushing separate injection tubing string and application method |
| CN109322648B (en) * | 2017-07-31 | 2023-10-31 | 中国石油天然气股份有限公司 | Separate injection pipe column for oil well water injection and use method |
| CN110374564A (en) * | 2019-07-25 | 2019-10-25 | 东北石油大学 | A kind of pressure and viscosity can survey the bleeder mechanism and its measurement method of tune in real time |
| CN110374564B (en) * | 2019-07-25 | 2021-08-17 | 东北石油大学 | Pressure dividing device capable of measuring and adjusting pressure and viscosity in real time and measuring method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120704 Effective date of abandoning: 20140917 |
|
| RGAV | Abandon patent right to avoid regrant |