CN201416431Y - Non-return seal injection integral polymer injector - Google Patents
Non-return seal injection integral polymer injector Download PDFInfo
- Publication number
- CN201416431Y CN201416431Y CN2009200265859U CN200920026585U CN201416431Y CN 201416431 Y CN201416431 Y CN 201416431Y CN 2009200265859 U CN2009200265859 U CN 2009200265859U CN 200920026585 U CN200920026585 U CN 200920026585U CN 201416431 Y CN201416431 Y CN 201416431Y
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- piston
- injection
- counterpiston
- poly
- injected
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Abstract
A non-return seal injection integral polymer injector comprises an upper connector, a limiting body, a regulating ring, a spring, an injection allocating sleeve, a non-return piston, a seal piston, aliquid outlet groove, a control piston and a piston sleeve, and is characterized in that the injection allocating sleeve and the limiting body are connected with the inner phase of the upper connectorin turn, and the regulating ring, the spring, the non-return piston, the seal piston, the control piston and the piston sleeve are connected on the upper connector and the limiting body and outside the injection allocating sleeve in turn. The non-return seal injection integral polymer injector has the characteristics that the seal and the injection are finished once, the operating period is reduced, the cost is saved, the integral polymer injector has non-return function, the whole of the integral polymer injector can realize low cutting and injection, and can realize the thorough flushing ofa whole well. The non-return seal injection integral polymer injector can be widely applied in oil field polymer injection process of tertiary process.
Description
One, technical field
The utility model relates to oil exploitation and annotates polymerization displacement of reservoir oil downhole tool, and the poly-device of integrated notes is injected in particularly a kind of anti-reverse sealing.
Two, background technology
The poly-device of the notes of traditional tertiary oil production in oil field polymer injection displacement of reservoir oil is the dead core structures of single tube, for tertiary oil production in oil field contributes, but it exists following shortcoming or deficiency simultaneously: 1. when single pipe layered polymer injection device and the supporting application of compression packer, must carry the dead fuse set packer of going into the well, after packer setting is finished, pull dead fuse out, could normally inject, increase working procedure, prolonged duty cycle; 2. when well-flushing, flushing fluid directly enters oil pipe and returns to ground from annotating poly-device fluid hole, causes the well-flushing short circuit, can't realize thorough well-flushing; 3. when stopping annotating, the stratum is counter tells, and forms interlayer at the poly-device place of notes and gangs up; 4. easily block and join poly-fuse, can't realize the pulling allotment.
Three, summary of the invention
The purpose of this utility model provides a kind of anti-reverse sealing and injects the poly-device of integrated notes, adopt packed-piston, anti-counterpiston, control piston and injection allocation cover, the combining structure of parts such as sealing shroud, the shortcoming and the deficiency that overcome effectively or avoid existing in the above-mentioned prior art reach and prevent that shearing, anti-reverse notes gather.
The poly-device of integrated notes is injected in anti-reverse sealing described in the utility model, comprise top connection, limit body, adjustable ring, spring, injection allocation cover, anti-counterpiston, packed-piston, liquid outlet groove, control piston, piston bush, it is characterized in that described injection allocation cover is connected in turn with in the top connection with limit body, outer adjustable ring, spring, anti-counterpiston, packed-piston, control piston and the piston bush of being connected and installed with in turn of top connection and limit body and injection allocation cover.
Wherein, described control piston is installed in the piston bush, is fixed by shear pin and injection allocation cover.Described spring is installed on the limit body between adjustable ring and the anti-counterpiston.Described injection allocation cover top is provided with pressure transmission hole, and this pressure transmission hole has outer step, and this outer step has liquid outlet groove.Described packed-piston upper end contacts with the outer step and the anti-counterpiston lower end of injection allocation cover, and the lower end sits on the control piston upper end.Described anti-counterpiston is that top is provided with interior step, and the lower end is the openend structure, matches with the outer stepped outer surface of injection allocation cover in the lower open end.Described anti-counterpiston lower end is the male cone (strobilus masculinus) structure.Described piston bush is that the bottom is provided with interior step, and the upper end is the structure of openend.Described piston bush upper end is the inner conical surface structure, can be conical surface seal with anti-counterpiston lower end.
The utility model has following advantage compared with prior art:
1, sealing is injected and is once finished, and shortens duty cycle, saves cost;
2, has anti-reverse function;
3, the low shearing of whole realization injected;
4, can realize the thorough well-flushing of full well.
Four, description of drawings
Accompanying drawing is a kind of example structure schematic diagram of the present utility model
Five, the specific embodiment:
Consult accompanying drawing, the poly-device of integrated notes is injected in a kind of anti-reverse sealing, comprises top connection 1, limit body 2, adjustable ring 3, spring 4, injection allocation cover 5, anti-counterpiston 6, packed-piston 8, liquid outlet groove 9, control piston 11, piston bush 12.Injection allocation cover 5 is connected top connection 1 and limit body 2 and injection allocation cover 5 outer adjustable ring 3, spring 4, anti-counterpiston 6, packed-piston 8, control piston 11 and the piston bushs 12 of being connected and installed with in turn in turn with in the top connection 1 with limit body 2.
Control piston 11 is installed in the piston bush 12, is fixed by shear pin 10 and injection allocation cover 5.Spring 4 is installed on the limit body between adjustable ring 3 and the anti-counterpiston 6.Injection allocation is overlapped 5 tops and is provided with pressure transmission hole, and this pressure transmission hole has outer step, and this outer step has liquid outlet groove 9.Packed-piston 8 upper ends contact with the outer step and anti-counterpiston 6 lower ends of injection allocation cover 5, and lower end peace seat is in control piston 11 upper ends.Anti-counterpiston 6 is interior step for top is provided with, and the lower end is the openend structure, matches with injection allocation cover 5 outer ledge surfaces in the lower open end.Anti-counterpiston 6 lower ends are the male cone (strobilus masculinus) structure.Piston bush 12 is interior step for the bottom is provided with, and the upper end is the structure of openend.Piston bush 12 upper ends are the inner conical surface structure, can be conical surface seal with anti-counterpiston 6 lower ends.
During operation, the utility model is gone into the well with separate injection tubing string and is put in place, during set packer, hydraulic pressure is simultaneously by pressure transmission hole 7 and liquid outlet groove 9 on the injection allocation cover 5, act on the anti-counterpiston 6 by pressure transmission hole 7, it is up to promote anti-counterpiston 6 compression springs 4, arrives limit body 2 and stops, and prevents to press and spring 4; Act on the lower surface of packed-piston 8 respectively by liquid outlet groove 9 and on the upper surface of control piston 11, guarantee the sealing of whole tubing string in the packer setting process, when reaching certain pressure, cut off shear pin 10, control piston 11 is descending, abdicates certain space in sealing shroud 12 chambeies below packed-piston 8.After packer setting is finished, pressure release, anti-counterpiston 6 of spring 4 promotions and packed-piston 8 are descending, packed-piston 8 enters that control piston 11 is descending to be abdicated in the space in sealing shroud 12 chambeies, at this moment, and liquid outlet groove 9 and external communications, open the injection channel, the realization packer setting injects once to be finished, and anti-counterpiston 6 contacts with sealing shroud 12 and forms conical surface seal, realizes preventing reverse function.
Annotate when gathering, polymer solution produces the throttling step-down when gathering fuse by joining, arrive liquid outlet groove 9, this pressure reduction acts on the anti-counterpiston 6 by the pressure transmission hole 7 on the injection allocation cover 5, it is up to promote anti-counterpiston 6 compression springs 4, anti-counterpiston 6 and sealing shroud 12 disengage, and annotate poly-mouthful and open, and realize that herein polymer does not have the injection of shearing.
When stopping annotating, it is descending to promote anti-counterpiston 6 under spring 4 effects, contacts with sealing shroud 12 and forms sealing, plays anti-reverse action.When stopping notes and well-flushing, polymer just can not enter by liquid outlet groove 9 and annotate in the poly-device, realizes thorough well-flushing, prevents the anti-polymer plugging that spues, and realizes injection well test pulling smoothly, the raising success rate.
Claims (9)
1, the poly-device of integrated notes is injected in a kind of anti-reverse sealing, comprise top connection, limit body, adjustable ring, spring, injection allocation cover, anti-counterpiston, packed-piston, liquid outlet groove, control piston, piston bush, it is characterized in that described injection allocation cover is connected in turn with in the top connection with limit body, outer adjustable ring, spring, anti-counterpiston, packed-piston, control piston and the piston bush of being connected and installed with in turn of top connection and limit body and injection allocation cover.
2, the poly-device of integrated notes is injected in anti-reverse sealing according to claim 1, it is characterized in that described control piston is installed in the piston bush, is fixed by shear pin and injection allocation cover.
3, the poly-device of integrated notes is injected in anti-reverse sealing according to claim 1, it is characterized in that described spring is installed on the limit body between adjustable ring and the anti-counterpiston.
4, the poly-device of integrated notes is injected in anti-reverse sealing according to claim 1, it is characterized in that described injection allocation cover top is provided with pressure transmission hole, and this pressure transmission hole has outer step, and this outer step has liquid outlet groove.
5, the poly-device of integrated notes is injected in anti-reverse sealing according to claim 1, it is characterized in that described packed-piston upper end contacts with the outer step and the anti-counterpiston lower end of injection allocation cover, and the lower end sits on the control piston upper end.
6, the poly-device of integrated notes is injected in anti-reverse sealing according to claim 1, it is characterized in that described anti-counterpiston is that top is provided with interior step, and the lower end is the openend structure, matches with the outer step appearance of injection allocation cover in the lower open end.
7, the poly-device of integrated notes is injected in anti-reverse sealing according to claim 6, it is characterized in that described anti-counterpiston lower end is the male cone (strobilus masculinus) structure.
8, the poly-device of integrated notes is injected in anti-reverse sealing according to claim 1, it is characterized in that described piston bush is that the bottom is provided with interior step, and the upper end is the structure of openend.
9, the poly-device of integrated notes is injected in anti-reverse sealing according to claim 8, it is characterized in that described piston bush upper end for the inner conical surface structure, can be conical surface seal with anti-counterpiston lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200265859U CN201416431Y (en) | 2009-06-04 | 2009-06-04 | Non-return seal injection integral polymer injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200265859U CN201416431Y (en) | 2009-06-04 | 2009-06-04 | Non-return seal injection integral polymer injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201416431Y true CN201416431Y (en) | 2010-03-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200265859U Expired - Fee Related CN201416431Y (en) | 2009-06-04 | 2009-06-04 | Non-return seal injection integral polymer injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201416431Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003165A (en) * | 2010-10-13 | 2011-04-06 | 中国石油化工股份有限公司 | Integrated hollow confecting-polymer device |
| CN105649584A (en) * | 2014-11-10 | 2016-06-08 | 中国石油化工股份有限公司 | Hollow adjustable polymer blending device |
-
2009
- 2009-06-04 CN CN2009200265859U patent/CN201416431Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003165A (en) * | 2010-10-13 | 2011-04-06 | 中国石油化工股份有限公司 | Integrated hollow confecting-polymer device |
| CN105649584A (en) * | 2014-11-10 | 2016-06-08 | 中国石油化工股份有限公司 | Hollow adjustable polymer blending device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100303 Termination date: 20100604 |