CN205117251U - Pit shaft sand washing and pump sand control integration tubular column - Google Patents
Pit shaft sand washing and pump sand control integration tubular column Download PDFInfo
- Publication number
- CN205117251U CN205117251U CN201520834460.4U CN201520834460U CN205117251U CN 205117251 U CN205117251 U CN 205117251U CN 201520834460 U CN201520834460 U CN 201520834460U CN 205117251 U CN205117251 U CN 205117251U
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- China
- Prior art keywords
- sand
- flushing
- pump
- sand washing
- well
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- Expired - Fee Related
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Abstract
The utility model discloses a pit shaft sand washing and pump sand control integration tubular column, including cable packer, well -flushing valve, closed type pump, whirl sand removing device and the sand washing tubular column excessively that possesses well -flushing sand washing function, the well -flushing valve sets up in closed type pump, and cross cable packer, closed type pump, whirl sand removing device and the sand washing tubular column that possess well -flushing sand washing function link into an integrated entity through oil pipe. The utility model discloses a pit shaft sand washing and pump sand control integration tubular column can realize the sand control in process of production, can realize simultaneously the function of positive and negative circulation sand washing under the prerequisite of motionless tubular column, this technology have the fail safe nature of construction height, strong operability, process simply, characteristics such as construction convenience.
Description
Technical field
The utility model relates to a kind of oil field development well-flushing sand control technique, particularly relates to a kind of pit shaft sand washing and the sand prevention integrated tubing string of pump.
Background technology
Offshore oilfield part well is along with the prolongation of water flooding course, and oil-field aqueous increases, and due to the increase of fluid producing intensity, formation pressure declines, and sandstone bearing load increases, and the cementing destruction between particle causes sand production, and such well is shaked out and affects production capacity.Shake out and mainly damage downhole tool, the damage mode in electric submersible pump mainly contains sand plug, sand card and wearing and tearing, causes aneroid output or motor overload to burn, harsh conditions unit fracture fall well.For sand output well, at present conventional way is by dynamic tubing string, under enter sand-flushing pipe column and carry out sand washing operation.This sand washing method cost is high, and workload is large.
Utility model content
In order to solve problems of the prior art, the utility model provides a kind of pit shaft sand washing and the sand prevention integrated tubing string of pump, overcomes sand washing method cost in prior art high, the problem that workload is large.
The technical solution of the utility model is: a kind of pit shaft sand washing and the sand prevention integrated tubing string of pump, comprise the cable-passing packer, flushing valve, enclosed pump, cyclone desanding device and the sand-flushing pipe column that possess well-flushing sand washing function, described flushing valve is arranged in enclosed pump, possesses the cable-passing packer of well-flushing sand washing function, enclosed pump, cyclone desanding device and sand-flushing pipe column and is linked into an integrated entity by oil pipe.
The described cable-passing packer possessing well-flushing sand washing function is provided with well-flushing sand washing passage.
Described enclosed pump is combined into one by the guard shield of flushing valve, electric submersible pump and outside.
A kind of pit shaft sand washing of the present utility model and the sand prevention integrated tubing string of pump, described cable-passing packer possesses well-flushing sand washing passage; Described electric submersible pump connects flushing valve, closes electric submersible pump during sand-flushing and produce passage.Described enclosed pump prevents liquid from directly entering into electric submersible pump.Described cyclone desanding device realizes down-hole sand liquid and is separated.Described sand-flushing pipe column realizes sand cleaning fluid and enters into bottom tubing string, realizes thorough sand washing.By enclosed pump and cyclone desanding device, when ensureing normally to produce, oarse-grained sand does not enter pump, prevents sand to the wearing and tearing of electric submersible pump, plays the object of sand control.The object of fixed tubular column sand washing is realized by possessing the cable-passing packer of well-flushing sand washing function, flushing valve and sand-flushing pipe column.
The beneficial effects of the utility model are:
1. realize sand control under pump in manufacturing process, ensure normal demand of producing;
2. in fixed tubular column situation, complete sand-flushing operation;
3. save dynamic tubing string operating cost, minimizing workload, operation is simple, easy construction.
Accompanying drawing explanation
The pit shaft sand washing of Fig. 1 the utility model and the sand prevention integrated tubular column structure schematic diagram of pump;
In figure: the cable-passing packer 1, possessing well-flushing sand washing function; 2, flushing valve; 3, enclosed pump, 4, cyclone desanding device; 5, sand-flushing pipe column; 6, sleeve pipe; 7, oil pipe (first flushing fluid enters oil pipe); 8, safety valve; 9, vent valve; 10, oil pipe (oil pipe on enclosed pump top); 11, electric submersible pump; 12, sand-proof pipe; 13, screen casing.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the sand washing of the utility model pit shaft and the sand prevention integrated tubing string of pump, comprise the cable-passing packer 1, flushing valve 2, enclosed pump 3, cyclone desanding device 4 and the sand-flushing pipe column 5 that possess well-flushing sand washing function, flushing valve 2 is arranged in enclosed pump 3, possesses the cable-passing packer 1 of well-flushing sand washing function, enclosed pump 3, cyclone desanding device 4 and sand-flushing pipe column 5 and is linked into an integrated entity by oil pipe.
The realization of sand control: production fluid enters from screen casing 13, from the annular space in the middle of sand-proof pipe 12 and sand-flushing pipe column 5 upwards, enter cyclone desanding device 4, liquid carries out the separation of sand liquid through cyclone desanding device 4, liquid after separation enters enclosed pump 3, then enters electric submersible pump 11, by flushing valve 2, enter the oil pipe 10 on enclosed pump 3 top, finally enter into ground.
The realization of sand washing: first flushing fluid enters oil pipe 7, by flushing valve 2, now flushing valve 2 closes electric submersible pump 11 passage, flushing fluid enters in enclosed pump 3, then enters into cyclone desanding device 4, enters in sand-flushing pipe column 5 downwards, finally bottom sand-flushing pipe column 5, return out the annular space entered between sand control pipe 12 and sand-flushing pipe column 5, upwards enter into the annular space between sleeve pipe 6 and flow string again, then pass through the well-flushing passage of cable-passing packer 1, finally return out ground.
Although be described the utility model by reference to the accompanying drawings above; but the utility model is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; do not departing under the ambit that the utility model aim and claim protect, can also make a lot of form, these all belong within protection domain of the present utility model.
Claims (3)
1. a pit shaft sand washing and the sand prevention integrated tubing string of pump, it is characterized in that, comprise the cable-passing packer, flushing valve, enclosed pump, cyclone desanding device and the sand-flushing pipe column that possess well-flushing sand washing function, described flushing valve is arranged in enclosed pump, possesses the cable-passing packer of well-flushing sand washing function, enclosed pump, cyclone desanding device and sand-flushing pipe column and is linked into an integrated entity by oil pipe.
2. pit shaft sand washing and the sand prevention integrated tubing string of pump according to claim 1, is characterized in that, described in possess well-flushing sand washing function cable-passing packer be provided with well-flushing sand washing passage.
3. pit shaft sand washing and the sand prevention integrated tubing string of pump according to claim 1, is characterized in that, described enclosed pump is combined into one by the guard shield of flushing valve, electric submersible pump and outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520834460.4U CN205117251U (en) | 2015-10-26 | 2015-10-26 | Pit shaft sand washing and pump sand control integration tubular column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520834460.4U CN205117251U (en) | 2015-10-26 | 2015-10-26 | Pit shaft sand washing and pump sand control integration tubular column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205117251U true CN205117251U (en) | 2016-03-30 |
Family
ID=55572870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520834460.4U Expired - Fee Related CN205117251U (en) | 2015-10-26 | 2015-10-26 | Pit shaft sand washing and pump sand control integration tubular column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205117251U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420070A (en) * | 2017-07-21 | 2017-12-01 | 中国海洋石油总公司 | A kind of closed flow string of Oil/gas Well list submersible electric pump |
| CN110234836A (en) * | 2017-02-01 | 2019-09-13 | 沙特阿拉伯石油公司 | Band cover electric submersible pump |
| CN112031683A (en) * | 2020-08-19 | 2020-12-04 | 中国海洋石油集团有限公司 | Sand washing and sand carrying lifting production integrated process pipe column and method thereof |
-
2015
- 2015-10-26 CN CN201520834460.4U patent/CN205117251U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110234836A (en) * | 2017-02-01 | 2019-09-13 | 沙特阿拉伯石油公司 | Band cover electric submersible pump |
| CN110234836B (en) * | 2017-02-01 | 2021-06-29 | 沙特阿拉伯石油公司 | Electric submersible pump with cover |
| CN107420070A (en) * | 2017-07-21 | 2017-12-01 | 中国海洋石油总公司 | A kind of closed flow string of Oil/gas Well list submersible electric pump |
| CN112031683A (en) * | 2020-08-19 | 2020-12-04 | 中国海洋石油集团有限公司 | Sand washing and sand carrying lifting production integrated process pipe column and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170112 Address after: 100027 Beijing city Dongcheng District Dongzhimen Street No. 6 Patentee after: CNOOC Energy Technology Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee before: China National Offshore Oil Corporation Patentee before: CNOOC Energy Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20181026 |