CN2561915Y - Sand washover device as sucking operation - Google Patents
Sand washover device as sucking operation Download PDFInfo
- Publication number
- CN2561915Y CN2561915Y CN 02240606 CN02240606U CN2561915Y CN 2561915 Y CN2561915 Y CN 2561915Y CN 02240606 CN02240606 CN 02240606 CN 02240606 U CN02240606 U CN 02240606U CN 2561915 Y CN2561915 Y CN 2561915Y
- Authority
- CN
- China
- Prior art keywords
- oil
- leather cup
- sand
- oil pump
- hollow rod
- 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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- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
A non-stop sand pumping and washing device is provided, which comprises an oil tube, an oil pump, as well as a hollow rod. The device is characterized in that, the oil tube center is arranged with the hollow rod, the hollow rod upper end is closely connected with a hollow rod connector and a leather cup core shaft, and a plurality of small leather cups are arranged between the leather cup core shaft and the oil tube; the upper end of the leather cup core shaft is connected with the oil pump lower connector through a changeover connector and a tubing pup joint, the oil pump lower connector outer wall is arranged with a large leather cup, a sealing connector is arranged between the hollow rod lower end and the oil tube, which is internally placed with a hollow plunger, a sealing ring and a packing set, and the abut is screwed with a blank plug. The device has the advantages of: simple structure, safe construction, high sand washing efficiency, so as to save the working cost and conduct the sand pumping operation without stop. The device is suitable for downhole sand pumping device in the development of oil field.
Description
(1) technical field
The utility model belongs to sand flushing device under the oil well, particularly a kind of sand flushing device of not stop pumping oil.
(2) background technology
In oil field development, can bury oil reservoir when the oil-producing formation sand production rate is big, influence oil well output, therefore sand setting need be discharged.Existing sand washing method normally proposes former well casing, and other is sand clean out pipe down, squeezes into sand washing liquid from wellbore casing, makes sand washing liquid carry the down-hole sand setting and returns out well head along sand clean out pipe.Need connect sand clean out pipe during operation, need termination of pumping, cause the activity duration to prolong.
(3) summary of the invention
The purpose of this utility model is, designs and produces a kind of not stop pumping sand flushing device, under the continual situation of oil pumping operation, can carry out the sand washing operation, increases work efficiency.
Not stop pumping sand flushing device of the present utility model comprises that oil pipe, oil pump, hollow stem, oil pipe center are provided with hollow stem, and the hollow stem upper end is sealedly connected with hollow stem joint and leather cup mandrel, is provided with a plurality of little leather cups between leather cup mandrel and the oil pipe; Leather cup mandrel upper end is connected with the oil pump lower contact by change snapping head, tubing nipple, and oil pump lower contact outer wall is provided with big leather cup, is provided with seal nipple between hollow stem lower end and the oil pipe, built-in hollow plunger, sealing ring and packing, and the termination is screwed with plug.
Using method of the present utility model is, squeezes into sand washing liquid (water) from the oil jacket annular space, and sand washing liquid backs down the big leather cup of oil pump lower contact outer wall, enter oil pipe from circular hole, enter the hollow stem lower end then, hollow stem stretches out under the effect of hydraulic pressure gradually, sand setting is dashed, outside well casing is discharged well.
The utility model has the advantages that: simple in structure, construction safety, sand washing efficient height is saved operating cost, can carry out the sand washing operation by not stop pumping oil.Be applicable to the down-hole sand flushing device in the oil field development.
(4) description of drawings
Fig. 1 is the organigram of not stop pumping sand flushing device of the present utility model
(5) specific embodiment
Below in conjunction with drawings and Examples, the utility model will be further described:
As seen from Figure 1, not stop pumping sand flushing device of the present utility model, comprise that oil pipe, oil pump, hollow stem, oil pipe 1 center are provided with hollow stem 2, the hollow stem upper end is sealedly connected with hollow stem joint 3 and leather cup mandrel 4, is provided with a plurality of cuticle bowls 5 between leather cup mandrel and the oil pipe; Leather cup mandrel upper end is connected with oil pump lower contact 8 by change snapping head 6, tubing nipple 7, oil pump lower contact outer wall is provided with big leather cup 9, be provided with seal nipple 10 between hollow stem lower end and the oil pipe, built-in hollow plunger 11, sealing ring 12 and packing 13, the termination is screwed with plug 14.Among the figure, the 15th, oil pump, the 16th, oil pump top connection, the 17th, high-pressure rubber pipe.
Claims (1)
1, a kind of not stop pumping sand flushing device comprises that oil pipe, oil pump, hollow stem, oil pipe center are provided with hollow stem, it is characterized in that, the hollow stem upper end is sealedly connected with hollow stem joint and leather cup mandrel, is provided with a plurality of little leather cups between leather cup mandrel and the oil pipe; Leather cup mandrel upper end is connected with the oil pump lower contact by change snapping head, tubing nipple, and oil pump lower contact outer wall is provided with big leather cup, is provided with seal nipple between hollow stem lower end and the oil pipe, built-in hollow plunger, sealing ring and packing, and the termination is screwed with plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02240606 CN2561915Y (en) | 2002-06-21 | 2002-06-21 | Sand washover device as sucking operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02240606 CN2561915Y (en) | 2002-06-21 | 2002-06-21 | Sand washover device as sucking operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2561915Y true CN2561915Y (en) | 2003-07-23 |
Family
ID=33713677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02240606 Expired - Fee Related CN2561915Y (en) | 2002-06-21 | 2002-06-21 | Sand washover device as sucking operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2561915Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536142A (en) * | 2012-02-07 | 2012-07-04 | 中国石油天然气股份有限公司 | Method for pumping and washing coal bed gas drainage well without stopping |
| CN103343671A (en) * | 2013-07-17 | 2013-10-09 | 濮阳市东昊机械电子有限公司 | Small washpipe continuous sand washing tubular column |
-
2002
- 2002-06-21 CN CN 02240606 patent/CN2561915Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536142A (en) * | 2012-02-07 | 2012-07-04 | 中国石油天然气股份有限公司 | Method for pumping and washing coal bed gas drainage well without stopping |
| CN102536142B (en) * | 2012-02-07 | 2014-04-02 | 中国石油天然气股份有限公司 | Method for pumping and washing coal bed gas drainage well without stopping |
| CN103343671A (en) * | 2013-07-17 | 2013-10-09 | 濮阳市东昊机械电子有限公司 | Small washpipe continuous sand washing tubular column |
| CN103343671B (en) * | 2013-07-17 | 2016-12-28 | 濮阳市东昊机械电子有限公司 | Little washing pipe continuous flushing sand tubular column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |