CN201581877U - Same-well multi-layer injection-production technical tubing string - Google Patents
Same-well multi-layer injection-production technical tubing string Download PDFInfo
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- CN201581877U CN201581877U CN2009202706254U CN200920270625U CN201581877U CN 201581877 U CN201581877 U CN 201581877U CN 2009202706254 U CN2009202706254 U CN 2009202706254U CN 200920270625 U CN200920270625 U CN 200920270625U CN 201581877 U CN201581877 U CN 201581877U
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Abstract
The utility model relates to an underground technical tubing string used in the field of oil extraction in oil fields and belongs to a same-well multi-layer injection-production technical tubing string. The utility model provides a device which leads the sewage produced in a highwater-cutwell to be re-injected into a stratum after being processed by a separator and can normally output the separated crude oil. The lower end of the outer oil pipe 2 of the same-well multi-layer injection-production technical tubing string is connected with a packer 3, a re-injector 4, a packer 6, a producer 7 and a packer 6 in sequence to form a plurality of unit bodies; and the lowest unit body is connected with a tail pipe 8 and a pipe plug 9 in sequence. The same-well multi-layer injection-production technical tubing string has the advantages of having reasonable tubing string structure design which is easy to be implemented, reducing the investment cost of ground sewage processing equipment and reducing the environmental pollution, etc.
Description
Technical field: the utility model relates to the used down-hole process pipe string in oil recovery field, oil field, belongs to a kind of with well multilayer injection-production technology tubing string.
Background technology: Daqing oil field enters late high water content period at present, and the moisture content of individual well is up to more than 98%, and extraction liquid need be set up a large amount for the treatment of stations and carry out sewerage treatment, has increased the oil field development cost; Effluent discharge contaminated environment in the job execution, simultaneously a large amount of water injection wells need inject water and keep strata pressure; Sewage after the processing wants to inject the stratum also needs a large amount of ground installations.Studied with well multilayer injection-production column jacket for addressing the above problem, high aquifer extraction liquid is direct reinjection into reservoir after eliminator is handled, and the crude oil of separation is adopted ground.
Summary of the invention: the utility model provides a kind of sewage of extraction in the high water-cut well that makes to handle back reinjection into reservoir, the same well multilayer injection-production technology tubing string of the normal output of crude oil of separation through eliminator.
The technical solution of the utility model realizes by following measure: outer oil pipe lower end connects successively by packer, re-injection device, packer, extraction device, packer and is connected to form a plurality of cell cubes, below cell cube union tail and plug successively, more than connect to form outer tubing string, the inner oil tube lower end connects the insertion seal section and forms interior tubing string, and simultaneously interior tubing string places outer tubing string.
Be connected outer oil pipe between re-injection device and the packer.Packer is for can bore retrievable Y443-114 type.Packer is the Y341-114 type.Has duplex channel in re-injection device, the extraction device.The external diameter of inner oil tube is Φ 48mm.The external diameter of outer oil pipe is Φ 73mm.
The utlity model has following advantage: it can reduce the input cost of ground sewage treatment facility, reduces the pollution to environment, and produced-water reinjection simultaneously can guarantee strata pressure, reduces the input of water injection well; Easy construction can realize that the injection allocation simultaneously of same well different layers position joins product; The oil field is realized that steady oil control water, efficient exploitation, energy-saving and emission-reduction, protection environment are significant, and tubular column structure is reasonable in design simultaneously, implements easily.
Description of drawings: Fig. 1 is the utility model structure diagram; Fig. 2 is outer tubing string figure; Fig. 3 is interior tubing string figure.
1-inner oil tube among the figure, the outer oil pipe of 2-, the 3-packer, 4-re-injection device, 5-inserts seal section, 6-packer, 7-extraction device, 6-packer, 8-tail pipe, 9-plug
The specific embodiment: the utility model is described in further detail below in conjunction with accompanying drawing: outer oil pipe 2 lower ends connect successively by packer 3, re-injection device 4, packer 6, extraction device 7, packer 6 and are connected to form a plurality of cell cubes, below cell cube union tail 8 and plug 9 successively, more than connect to form outer tubing string, inner oil tube 1 lower end connects insertion seal section 5 and forms interior tubing string, and simultaneously interior tubing string places outer tubing string.
Be connected outer oil pipe 2 between re-injection device 4 and the packer 6.Packer 3 is for can bore retrievable Y443-114 type.Packer 6 is the Y341-114 type.Has duplex channel in re-injection device 4, the extraction device 7.The external diameter of inner oil tube 1 is Φ 48mm.The external diameter of outer oil pipe 2 is Φ 73mm.
When on-the-spot reality is used, outer oil pipe 2 lower ends connect packer 3, re-injection device 4, packer 6, extraction device 7, packer 6 successively, below union tail 8 and plug 9 successively, more than connect to form outer tubing string, sliding sleeve in re-injection device 4 and the extraction device 7 makes outer tubing string airtight, ground beat hydraulic pressure 20MPa make packer 3 and up and down two packers 6 set simultaneously, rotational release is finished outer tubing string and is located.Insert by inner oil tube 1 then and insert the interior tubing string that seal section 5 is formed, open sliding sleeve step by step and finish multilayer and annotate simultaneously and adopt.Wherein the annular space of inner oil tube 1 outer oil pipe 2 is formed outer tunnel, and inner oil tube 1 and insertion seal section 5 are formed internal channels, cooperates the passageway bridge of re-injection device 4 to form binary channels, and internal channel injects, the outer tunnel extraction.This tubing string can be realized injecting simultaneously, a plurality of oil reservoirs of extraction.
Claims (7)
1. with well multilayer injection-production technology tubing string, it is characterized in that: outer oil pipe (2) lower end connects successively by packer (3), re-injection device (4), packer (6), extraction device (7), packer (6) and is connected to form a plurality of cell cubes, below cell cube union tail (8) and plug (9) successively, more than connect to form outer tubing string, inner oil tube (1) lower end connects insertion seal section (5) and forms interior tubing string, and simultaneously interior tubing string places outer tubing string.
2. according to claim 1 with well multilayer injection-production technology tubing string, it is characterized in that: be connected outer oil pipe (2) between re-injection device (4) and the packer (6).
3. according to claim 1 with well multilayer injection-production technology tubing string, it is characterized in that: packer (3) is for can bore retrievable Y443-114 type.
4. according to claim 1 with well multilayer injection-production technology tubing string, it is characterized in that: packer (6) is the Y341-114 type.
5. according to claim 1 with well multilayer injection-production technology tubing string, it is characterized in that: re-injection device (4), extraction device have duplex channel in (7).
6. according to claim 1 with well multilayer injection-production technology tubing string, it is characterized in that: the external diameter of inner oil tube (1) is Φ 48mm.
7. according to claim 1 with well multilayer injection-production technology tubing string, it is characterized in that: the external diameter of outer oil pipe (2) is Φ 73mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202706254U CN201581877U (en) | 2009-11-20 | 2009-11-20 | Same-well multi-layer injection-production technical tubing string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202706254U CN201581877U (en) | 2009-11-20 | 2009-11-20 | Same-well multi-layer injection-production technical tubing string |
Publications (1)
| Publication Number | Publication Date |
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| CN201581877U true CN201581877U (en) | 2010-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009202706254U Expired - Fee Related CN201581877U (en) | 2009-11-20 | 2009-11-20 | Same-well multi-layer injection-production technical tubing string |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094594A (en) * | 2010-12-17 | 2011-06-15 | 中国石油集团长城钻探工程有限公司 | Totally-enclosed device for upper part of oil layer in downhole operation of steam-driven well |
| CN102852467A (en) * | 2011-06-30 | 2013-01-02 | 中国石油天然气股份有限公司 | Separate zone production technical string capable of protecting oil reservoirs |
| CN102900409A (en) * | 2011-07-25 | 2013-01-30 | 中国石油天然气股份有限公司 | Throwing-fishing-free separated layer water injection technology tubular column |
| CN103184859A (en) * | 2013-03-18 | 2013-07-03 | 中国石油天然气股份有限公司 | Device and method for exploitation for single-well injection-production |
| CN103256031A (en) * | 2013-05-10 | 2013-08-21 | 天津荣亨集团股份有限公司 | Oil extraction and water injection synchronous conduction control system in same oil well |
| CN107524429A (en) * | 2017-07-10 | 2017-12-29 | 中国石油集团长城钻探工程有限公司 | A kind of individual well multilayer while injection-production technical tubing string |
| CN108071376A (en) * | 2016-11-17 | 2018-05-25 | 中国石油天然气股份有限公司 | A kind of injection-production column jacket in coal bed gas well |
| CN108547603A (en) * | 2018-02-28 | 2018-09-18 | 中国石油天然气股份有限公司 | A kind of water flood recovery integrated pipe column and water injection oil extraction method |
| CN108979614A (en) * | 2017-06-05 | 2018-12-11 | 中国石油天然气股份有限公司 | A kind of ground water-oil separating single-well injection-production system |
| CN111749661A (en) * | 2019-03-29 | 2020-10-09 | 中国石油天然气股份有限公司 | Injection-production conversion mining device and assembling method thereof |
| CN112499810A (en) * | 2020-11-11 | 2021-03-16 | 西安石油大学 | Formation water hydrogen sulfide processing apparatus |
| CN113374451A (en) * | 2021-07-13 | 2021-09-10 | 中国海洋石油集团有限公司 | Horizontal well can be thrown and drag for layering accuse water pipe post |
| CN114876424A (en) * | 2022-06-07 | 2022-08-09 | 中海石油(中国)有限公司深圳分公司 | Separate mining and separate injection string and separate mining and separate injection method |
-
2009
- 2009-11-20 CN CN2009202706254U patent/CN201581877U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094594A (en) * | 2010-12-17 | 2011-06-15 | 中国石油集团长城钻探工程有限公司 | Totally-enclosed device for upper part of oil layer in downhole operation of steam-driven well |
| CN102852467A (en) * | 2011-06-30 | 2013-01-02 | 中国石油天然气股份有限公司 | Separate zone production technical string capable of protecting oil reservoirs |
| CN102900409A (en) * | 2011-07-25 | 2013-01-30 | 中国石油天然气股份有限公司 | Throwing-fishing-free separated layer water injection technology tubular column |
| CN102900409B (en) * | 2011-07-25 | 2017-04-12 | 中国石油天然气股份有限公司 | Throwing-fishing-free separated layer water injection technology tubular column |
| CN103184859A (en) * | 2013-03-18 | 2013-07-03 | 中国石油天然气股份有限公司 | Device and method for exploitation for single-well injection-production |
| CN103184859B (en) * | 2013-03-18 | 2015-09-09 | 中国石油天然气股份有限公司 | For quarrying apparatus and the method for single-well injection-production |
| CN103256031A (en) * | 2013-05-10 | 2013-08-21 | 天津荣亨集团股份有限公司 | Oil extraction and water injection synchronous conduction control system in same oil well |
| CN108071376A (en) * | 2016-11-17 | 2018-05-25 | 中国石油天然气股份有限公司 | A kind of injection-production column jacket in coal bed gas well |
| CN108979614A (en) * | 2017-06-05 | 2018-12-11 | 中国石油天然气股份有限公司 | A kind of ground water-oil separating single-well injection-production system |
| CN107524429A (en) * | 2017-07-10 | 2017-12-29 | 中国石油集团长城钻探工程有限公司 | A kind of individual well multilayer while injection-production technical tubing string |
| CN108547603A (en) * | 2018-02-28 | 2018-09-18 | 中国石油天然气股份有限公司 | A kind of water flood recovery integrated pipe column and water injection oil extraction method |
| CN111749661A (en) * | 2019-03-29 | 2020-10-09 | 中国石油天然气股份有限公司 | Injection-production conversion mining device and assembling method thereof |
| CN112499810A (en) * | 2020-11-11 | 2021-03-16 | 西安石油大学 | Formation water hydrogen sulfide processing apparatus |
| CN112499810B (en) * | 2020-11-11 | 2022-07-08 | 西安石油大学 | Formation water hydrogen sulfide processing apparatus |
| CN113374451A (en) * | 2021-07-13 | 2021-09-10 | 中国海洋石油集团有限公司 | Horizontal well can be thrown and drag for layering accuse water pipe post |
| CN114876424A (en) * | 2022-06-07 | 2022-08-09 | 中海石油(中国)有限公司深圳分公司 | Separate mining and separate injection string and separate mining and separate injection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20181120 |
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| CF01 | Termination of patent right due to non-payment of annual fee |