CN203867534U - Hydraulic control type balanced and layered water injection pipe column - Google Patents
Hydraulic control type balanced and layered water injection pipe column Download PDFInfo
- Publication number
- CN203867534U CN203867534U CN201320799252.6U CN201320799252U CN203867534U CN 203867534 U CN203867534 U CN 203867534U CN 201320799252 U CN201320799252 U CN 201320799252U CN 203867534 U CN203867534 U CN 203867534U
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- CN
- China
- Prior art keywords
- flow regulator
- packer
- pipe column
- injection well
- downhole flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a hydraulic control type balanced and layered water injection pipe column which comprises a pipe column body, a water distributor and packers. The pipe column body is provided with the water distributor and further sleeved with the packers. The packers are arranged at the upper portion of the water distributor and the lower portion of the water distributor respectively, and are hydraulic control type packers. The hydraulic control type packers are connected with a hydraulic control type pipeline. A laterally-opened type well washing valve is connected to the lower portion of the pipe column body. The bottom end of the pipe column body is blocked through a plug. By means of the hydraulic control type balanced and layered water injection pipe column, the problem that a layered water injection pipe column moves up and down due to influences of temperature factors and pressure factors is solved, damage to the layered packers is reduced, layering reliability of the balanced water injection pipe column is improved, long-term efficiency of the layered water injection pipe column is ensured, and high-volume well washing of the layered water injection pipe column is achieved.
Description
Technical field
The utility model relates to the water injection string that separated-zone water infection oil field well is used, specifically hydraulically-controlled type balance separate layer water injection string.
Background technology
Water filling is to keep strata pressure, realizes a kind of effective exploitation mode of oilfield stable production volume increase and raising oil recovery rate.Current most oilfield water flooding Reservoir Heterogeneity is serious, and interlayer contradiction is outstanding, need to take stratified injection water technology.Due to water filling temperature or pressure effect effect, can there is upper and lower play in separate layer water injection string, and layer separating packer was lost efficacy, and tubing string period of validity is short.Conventional hydraulic anchor anchor mechanism can be eliminated water injection pressure effect, but hydraulic anchor is difficult for disanchoring, later stage upkeep operation difficulty; The Balance water filling column of the conventional compression layer separating packer adopting at present, because well-flushing area of passage is little, cannot meet the requirement of water injection well high flow rate washover, and the easy attached impurity of flushing valve, causes flushing valve to be not closed completely and the oil reservoir levels that arrives is ganged up, and layering was lost efficacy.
Summary of the invention
The purpose of this utility model is to provide hydraulically-controlled type balance separate layer water injection string, well having solved separate layer water injection string is subject to the impact of temperature and pressure factor to cause the problem of the upper and lower play of tubing string, reduce the damage of layer separating packer, improve Balance water filling column layering reliability, guarantee that separate layer water injection string is long-acting, and realize separate layer water injection string high flow rate washover.
In order to reach above-mentioned purpose, the utility model has adopted following technical scheme, hydraulically-controlled type balance separate layer water injection string, comprise tubing string main body, injection well downhole flow regulator, packer, in described tubing string main body, be provided with injection well downhole flow regulator, in described tubing string main body, also cover has packer, and described injection well downhole flow regulator upper and lower respectively arranges an above-mentioned packer.Described packer is hydraulically-controlled type packer, and described hydraulically-controlled type packer is connected with liquid controling pipe line.Described injection well downhole flow regulator is provided with injection well downhole flow regulator, lower injection well downhole flow regulator, in the tubing string main body of described upper injection well downhole flow regulator top, cover has upper hydraulic control packer, in the tubing string main body of lower injection well downhole flow regulator below, cover has lower hydraulic control packer, and in the tubing string main body between described upper injection well downhole flow regulator and lower injection well downhole flow regulator, cover has layering hydraulic control packer.Described tubing string lower body part is also connected with laterally opened flushing valve.Described tubing string main body bottom shutoff has plug.
Compared to prior art, the utlity model has following beneficial effect:
1, hydraulically-controlled type balance separate layer water injection string up and down not play, do not wriggle, layering tubing string period of validity is long;
2, adopt hydraulically-controlled type layer separating packer, layering reliability is high; And can meet high flow rate washover requirement.
In a word, the utility model is under water filling temperature or pressure effect effect, and upper and lower play does not occur separate layer water injection string, does not damage layer separating packer, guarantees that separate layer water injection string is long-acting.And by the setting of liquid controling pipe line control hydraulic control packer, deblocking, realize down-hole interlayer packing, large discharge capacity anti-flushing well technique.
Brief description of the drawings
Fig. 1 is the structural representation of hydraulically-controlled type balance separate layer water injection string of the present utility model.
In figure: 1-hydraulic control packer; 2-injection well downhole flow regulator; 3-liquid controling pipe line; 4-laterally opened flushing valve; 5-plug.
Detailed description of the invention
Relevant detailed description of the present utility model and technology contents, coordinate brief description of the drawings as follows, but accompanying drawing only provides the use of reference with explanation, is not used for the utility model to be limited.
As shown in Figure 1, hydraulically-controlled type balance separate layer water injection string, comprises tubing string main body, injection well downhole flow regulator 2, packer, in described tubing string main body, is provided with injection well downhole flow regulator, and in described tubing string main body, also cover has packer, and described injection well downhole flow regulator upper and lower respectively arranges an above-mentioned packer.Described packer is hydraulically-controlled type packer 1, and described hydraulically-controlled type packer is connected with liquid controling pipe line 3.Described injection well downhole flow regulator is provided with injection well downhole flow regulator, lower injection well downhole flow regulator, in the tubing string main body of described upper injection well downhole flow regulator top, cover has upper hydraulic control packer, in the tubing string main body of lower injection well downhole flow regulator below, cover has lower hydraulic control packer, and in the tubing string main body between described upper injection well downhole flow regulator and lower injection well downhole flow regulator, cover has layering hydraulic control packer.Described tubing string lower body part is also connected with laterally opened flushing valve 4.Described tubing string main body bottom shutoff has plug 5.
Hydraulic control packer is connected by liquid controling pipe line, is pressurizeed and is set underground hydraulic-control packer by liquid controling pipe line, realizes down-hole interlayer packing; When water filling, injected water, by the injection well downhole flow regulator up and down of water injection string, is realized laminated distributor under well water filling.
Tubing string is anticreep: when seperated layer water injection, under water injection pressure effect, tubing string pressurized is descending, now by hydraulic control packer and oil pipe column, the most beneath in sleeve pipe forms a closed chamber, in chamber, leave liquid, due to the Incoercibility of liquid, stop separate layer water injection string descending; In the time that temperature raises, tubing string expanded by heating, cause that separate layer water injection string retraction is up, now due to hydraulic control packing element and internal surface of sleeve pipe contact area large, and setting pressure can directly control by ground, sets pressure large, make packing element and internal surface of sleeve pipe frictional force very big, be enough to the up power of tubing string that compensation temperature effect causes, it is motionless that tubing string keeps.
Seperated layer water injection and high flow rate washover: pressurize and set underground hydraulic-control packer by liquid controling pipe line, realize down-hole interlayer packing, can pass through upper and lower injection well downhole flow regulator, realize laminated distributor under well water filling.By liquid controling pipe line pressure release, underground hydraulic-control packer the automatic recovery, can realize large discharge capacity anti-flushing well technique.
The foregoing is only preferred embodiment of the present utility model, non-in order to limit the scope of the claims of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to the scope of the claims of the present utility model.
Claims (1)
1. hydraulically-controlled type balance separate layer water injection string, comprise tubing string main body, injection well downhole flow regulator, packer, in described tubing string main body, be provided with injection well downhole flow regulator, in described tubing string main body, also cover has packer, it is characterized in that, described injection well downhole flow regulator upper and lower respectively arranges an above-mentioned packer, described packer is hydraulically-controlled type packer, described hydraulically-controlled type packer is connected with liquid controling pipe line, described injection well downhole flow regulator is provided with injection well downhole flow regulator, lower injection well downhole flow regulator, in the tubing string main body of described upper injection well downhole flow regulator top, cover has upper hydraulic control packer, in the tubing string main body of lower injection well downhole flow regulator below, cover has lower hydraulic control packer, in tubing string main body between described upper injection well downhole flow regulator and lower injection well downhole flow regulator, cover has layering hydraulic control packer, described tubing string lower body part is also connected with laterally opened flushing valve, described tubing string main body bottom shutoff has plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320799252.6U CN203867534U (en) | 2013-12-09 | 2013-12-09 | Hydraulic control type balanced and layered water injection pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320799252.6U CN203867534U (en) | 2013-12-09 | 2013-12-09 | Hydraulic control type balanced and layered water injection pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203867534U true CN203867534U (en) | 2014-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320799252.6U Expired - Fee Related CN203867534U (en) | 2013-12-09 | 2013-12-09 | Hydraulic control type balanced and layered water injection pipe column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203867534U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507861A (en) * | 2016-01-06 | 2016-04-20 | 李永立 | Tubular column for separated layer water injection |
| CN106194132A (en) * | 2015-04-30 | 2016-12-07 | 中国石油天然气股份有限公司 | Segmented water injection device of water injection well |
| CN106812507A (en) * | 2015-11-30 | 2017-06-09 | 中国石油化工股份有限公司 | A kind of well pressure control hierarchy packing water injection string |
| CN111173483A (en) * | 2018-11-09 | 2020-05-19 | 中国石油化工股份有限公司 | Time-sharing water injection pipe column and time-sharing water injection method |
| CN112709557A (en) * | 2019-10-24 | 2021-04-27 | 中国石油化工股份有限公司 | Safe and long-acting water injection string for offshore oil field and construction method |
-
2013
- 2013-12-09 CN CN201320799252.6U patent/CN203867534U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194132A (en) * | 2015-04-30 | 2016-12-07 | 中国石油天然气股份有限公司 | Segmented water injection device of water injection well |
| CN106812507A (en) * | 2015-11-30 | 2017-06-09 | 中国石油化工股份有限公司 | A kind of well pressure control hierarchy packing water injection string |
| CN106812507B (en) * | 2015-11-30 | 2018-12-28 | 中国石油化工股份有限公司 | A kind of well pressure control hierarchy packing water injection string |
| CN105507861A (en) * | 2016-01-06 | 2016-04-20 | 李永立 | Tubular column for separated layer water injection |
| CN111173483A (en) * | 2018-11-09 | 2020-05-19 | 中国石油化工股份有限公司 | Time-sharing water injection pipe column and time-sharing water injection method |
| CN111173483B (en) * | 2018-11-09 | 2022-03-29 | 中国石油化工股份有限公司 | Time-sharing water injection pipe column and time-sharing water injection method |
| CN112709557A (en) * | 2019-10-24 | 2021-04-27 | 中国石油化工股份有限公司 | Safe and long-acting water injection string for offshore oil field and construction method |
| CN112709557B (en) * | 2019-10-24 | 2022-12-06 | 中国石油化工股份有限公司 | Safe and long-acting water injection string for offshore oil field and construction 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: 20141008 Termination date: 20151209 |
|
| EXPY | Termination of patent right or utility model |