CN205422592U - Sand device is taken out in follow -up - Google Patents
Sand device is taken out in follow -up Download PDFInfo
- Publication number
- CN205422592U CN205422592U CN201620181038.8U CN201620181038U CN205422592U CN 205422592 U CN205422592 U CN 205422592U CN 201620181038 U CN201620181038 U CN 201620181038U CN 205422592 U CN205422592 U CN 205422592U
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- CN
- China
- Prior art keywords
- washing pipe
- sand
- outer tube
- oil
- pipe
- 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.)
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- 239000004576 sand Substances 0.000 title claims abstract description 53
- 238000005406 washing Methods 0.000 claims abstract description 38
- 238000005086 pumping Methods 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 abstract description 16
- 239000003129 oil well Substances 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 125000006850 spacer group Chemical group 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a sand device is taken out in follow -up, including outer tube, spacer sleeve, sealing washer and washing pipe, the sealing washer is equipped with on the upper portion of washing pipe, installs in the hole of outer tube, and the spacer sleeve is connected to the outer tube lower extreme. Sand device is taken out in follow -up be connected with the tail pipe under the oil -well pump. In the beam -pumping unit up stroke, well liquid enters into in the oil -well pump through the washing pipe hole. At the in -process of normal exploitation, the upper and lower piston end on washing pipe upper portion all bears the interior liquid column hydraulic of pit shaft. Sand increases when the stratum, and when the washing pipe hole was stopped up to the sand face, the pumping action of oil -well pump made the upper portion pressure decrease of washing pipe. Liquid column in the pit shaft forms the pressure differential in the upper and lower terminal surface department of washing pipe piston, with washing pipe jack -up, leaves the sand face, and liquid and stratum sand are in by the suction oil -well pump. So reciprocal, stratum sand is located the washing pipe lower part all the time, has guaranteed not the normal production that sand buried oil reservoir and oil well.
Description
Technical field
This utility model relates to the down-hole sand pumping device that oil field uses, a kind of automatic sand pumping device being connected under oil well pump.
Background technology
Sand well is during exploitation, it will usually having a certain amount of sand grains to sink in pit shaft, along with the prolongation of recovery time, the sand post in pit shaft is gradually increased, and when sand face shelters from oil reservoir, stratum fluid supply capacity can be caused to reduce, until not going out liquid and cannot exploiting.To this end, sand control measure is usually taken, stop that reservoir sand enters in pit shaft or takes sand washing operation to be gone out by the reservoir sand in pit shaft.Both measures all easily polluted reservoir, cost is higher.
Utility model content
The purpose of this utility model is to provide a kind of servo-actuated sand pumping device, when washing pipe inlet is blocked in sand face, in pit shaft under the effect of head of liquid, washing pipe is lifted off sand face, and sand grains is pumped down to ground, it is achieved sand does not buries the normal production of oil reservoir and oil well.
In order to reach above-mentioned purpose, this utility model have employed following technical scheme, a kind of servo-actuated sand pumping device, including outer tube, interstage sleeve, sealing ring and washing pipe, described washing pipe is hollow pipe, and outside is upper coarse and lower fine step structure, upper end car has groove, equipped with sealing ring.Described outer tube is the threaded hollow pipe of two ends car.Described outer tube sleeve, outside equipped with the washing pipe of sealing ring, connects interstage sleeve, makes washing pipe can not depart from outer tube in the lower end of outer tube.
Compared to prior art, this utility model has the advantages that
This device connects and under oil well pump.Sand output well is during exploitation, when the sand post in pit shaft is gradually increased, when blocking inlet opening, in pit shaft under the effect of fluid column, the pressure born due to washing pipe upper piston upper surface is less than the head of liquid of piston lower surface, and washing pipe is lifted off sand face, and well liquid carries sand grains and is pumped down to ground.
During exploitation, entering in oil well pump containing sand drain liquid by servo-actuated sand-catching apparatus, part sand grains can sink in pit shaft, and along with sand post constantly increases, the inlet of servo-actuated sand pumping device washing pipe is gradually blocked in sand face.Owing to acting on the head of liquid in the pit shaft of washing pipe upper piston lower surface more than the head of liquid in the washing pipe acting on piston upper surface, washing pipe is lifted off sand face, and under the swabbing action of oil well pump, well liquid carries sand grains and is lifted to ground.And so forth, constantly sand grains is drained into ground, it is ensured that sand does not buries the normal production of oil reservoir and oil well.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of servo-actuated sand pumping device of the present utility model.
In figure: 1. outer tube, 2. sealing ring, 3. interstage sleeve, 4. washing pipe.
Detailed description of the invention
Relevant detailed description of the present utility model and technology contents, coordinate accompanying drawing to be described as follows, but accompanying drawing only provides reference and purposes of discussion, is not used for being any limitation as this utility model.
According to Fig. 1, a kind of servo-actuated sand pumping device, including outer tube 1, sealing ring 2, interstage sleeve 3 and washing pipe 4.Washing pipe 4 is outside is upper coarse and lower fine step structure, and upper end car has groove, equipped with sealing ring 2, forms the piston of washing pipe.Washing pipe 4 is inserted in outer tube 1 endoporus, and connects interstage sleeve 3 in the lower end of outer tube 1, makes washing pipe 4 can not depart from outer tube 1.
Servo-actuated sand pumping device is connected on the tail pipe under oil well pump, and in oil pumper up stroke, well liquid is entered in oil well pump by tail pipe under washing pipe 4, outer tube 1 and pump.Along with increasing of formation sand production, sand post constantly increases, and the inlet of servo-actuated sand pumping device washing pipe 4 is gradually blocked in sand face.Owing to acting on the head of liquid in the pit shaft of washing pipe 4 upper piston lower surface more than the head of liquid in the washing pipe acting on piston upper surface, washing pipe is lifted off sand face, and under the swabbing action of oil well pump, well liquid carries sand grains and is lifted to ground.And so forth, constantly sand grains is drained into ground, it is ensured that sand does not buries the normal production of oil reservoir and oil well.
The foregoing is only preferred embodiment of the present utility model, be not used to limit the scope of the claims of the present utility model, other use the equivalence change of patent spirit of the present utility model, all should all belong to the scope of the claims of the present utility model.
Claims (3)
1. a servo-actuated sand pumping device, including outer tube, interstage sleeve, sealing ring and washing pipe, outer tube sleeve is outside equipped with the washing pipe of sealing ring, and the lower end of outer tube connects interstage sleeve, and washing pipe can move up and down within the outer tube.
The servo-actuated sand pumping device of one the most according to claim 1, it is characterised in that: described washing pipe is hollow pipe, and outside is upper coarse and lower fine step structure, and upper end car has groove, equipped with sealing ring, for sealing with outer pipe orifice.
The servo-actuated sand pumping device of one the most according to claim 1, it is characterised in that: described outer tube is the threaded hollow pipe of two ends car, and lower end connects interstage sleeve, makes washing pipe can not depart from outer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620181038.8U CN205422592U (en) | 2016-03-10 | 2016-03-10 | Sand device is taken out in follow -up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620181038.8U CN205422592U (en) | 2016-03-10 | 2016-03-10 | Sand device is taken out in follow -up |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205422592U true CN205422592U (en) | 2016-08-03 |
Family
ID=56534291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620181038.8U Active CN205422592U (en) | 2016-03-10 | 2016-03-10 | Sand device is taken out in follow -up |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205422592U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569589A (en) * | 2016-03-10 | 2016-05-11 | 东营市海天石油科技有限责任公司 | Follow-up sand-pump device |
-
2016
- 2016-03-10 CN CN201620181038.8U patent/CN205422592U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569589A (en) * | 2016-03-10 | 2016-05-11 | 东营市海天石油科技有限责任公司 | Follow-up sand-pump device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jiang Shuting Inventor after: Kang Jie Inventor after: Zhang Yuzhe Inventor after: Jiang Hailiang Inventor after: Liu Qingmin Inventor before: Jiang Shuting Inventor before: Yang Feng Inventor before: Kang Jie Inventor before: Zhang Yuzhe Inventor before: Guan Peng Inventor before: Jiang Hailiang Inventor before: Zhang Jianbin Inventor before: Liu Qingmin |
|
| CB03 | Change of inventor or designer information |