CN203584384U - Underground cyclone desander with block sand plates - Google Patents
Underground cyclone desander with block sand plates Download PDFInfo
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- CN203584384U CN203584384U CN201320823031.8U CN201320823031U CN203584384U CN 203584384 U CN203584384 U CN 203584384U CN 201320823031 U CN201320823031 U CN 201320823031U CN 203584384 U CN203584384 U CN 203584384U
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- sand
- pump
- block sand
- barrel
- pipe
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Abstract
The utility model discloses an underground cyclone desander with block sand plates. The underground cyclone desander with the block sand plates substantially solves the problems that well fluid with sands are easy to block up or damage an oil pump before entering a pump, and is characterized in that a block sand barrel, a variable diameter short circuit, a cyclone separation barrel and a bottom end plug are orderly connected below a pump barrel connector, wherein the cyclone separation barrel is a hollow straight pipe, a plurality of liquid inlet holes are arranged on the middle segment of the cyclone separation barrel, a hole-shaped liquid outlet is arranged on the bottom segment of the cyclone separation barrel, a diversion cone is fixedly arranged on the bottom end plug, the top of the diversion cone is arranged above the liquid inlet holes, a block sand pipe which is formed by connecting a straight pipe and a spinal canal is fixed in the block sand barrel, a plurality of block sand plates are arranged in the straight pipe, a lower inlet of the block sand pipe is arranged in a central through hole of the variable diameter short circuit after being sealed and connected a lower inlet is communicated with the cyclone separation barrel, and an upper outlet of the block sand pipe is arranged in a diversion cavity of the pump barrel connector. The underground cyclone desander with the block sand plates is excellent in sand prevention effect, can separate solid and liquid, and guarantees the oil pump to be used in long time.
Description
Technical field
The utility model relates to a kind of downhole tool being applied in petroleum gas engineering field.
Background technology
Oil field enters after middle high water-cut stage, and long-term waterflooding extraction causes formation cementation variation, and the application of the pressure break of back-up sand simultaneously, polymer displacement of reservoir oil and ternary composite driving wet goods new technology strengthens Produced Liquid prop-carrying capacity.Although production fluid amount continues to increase, also cause formation sand production amount to rise simultaneously.In oil extraction pump lifting process, due to erosion and the wearing and tearing of sand grains, pump efficiency reduces, and pump detection period shortens, and even often causes the accidents such as sand card and sand plug.In addition, in crude oil transmission process, often occur that pipeline amasss sand plug plug, oil transfer pump pump case is worn out, and valve damages, and the series of problems such as instrument malfunction, seriously affect the normal production of crude oil.For these problems, at present the conventional anti-sand method in oil field is to adopt the sand filtering pipe columns such as slotted liner, wire-wrapped screen are installed below oil extraction pump are stoped reservoir sand to enter pit shaft.Although this method is simple, construction cost is low, and period of validity is short, can only guard against larger sand grains, and easily stops up.
Summary of the invention
In order to solve the technical problem of mentioning in background technology, the utility model provides a kind of downhole rotational-flow desander with sand block sheet, this kind of downhole rotational-flow desander is simple in structure, be easy to be arranged on oil extraction pump lower end, can utilize the eddy flow principle of liquid to carry out liquid-solid separation to the production fluid of oil well, sand controlling result is good, has guaranteed the long-time use of oil extraction pump.
The technical solution of the utility model is: this kind is with the downhole rotational-flow desander of sand block sheet, comprise a pump barrel connector being connected with the Pump Suction Nozzle of oil extraction pump, its unique distinction is: below pump barrel connector, be connected with sand block cylinder, reducing short circuit, rotational flow separation cylinder and bottom plug in turn; Wherein, the straight tube that rotational flow separation cylinder is hollow, has some inlet openings in the stage casing of cylinder, at the end of cylinder, section has poroid liquid outlet, the aperture of liquid outlet is 2 times of aperture of inlet opening, is fixed with a deflection cone on the plug of bottom, and the vertex of a cone of deflection cone is positioned on inlet opening; In described sand block cylinder, be fixed with a sand retention pipe forming after being connected with Taper Pipe by straight tube, in straight tube, have the sand block sheet of some inclinations; The center through hole that is positioned at reducing short circuit after the lower end inlet seal of sand retention pipe connects, under Taper Pipe, end entrance is connected with rotational flow separation cylinder, and the upper end outlet of sand retention pipe is positioned at the diversion cavity of pump barrel connector.
The utlity model has following beneficial effect: this kind of downhole rotational-flow desander is provided with rotational flow separation cylinder and sand block cylinder, under the pump suction of oil extraction pump, oil well liquid-producing is sucked and produced eddy flow under the guide functions of deflection cone by feed tube, because solid-liquid two-phase exists density contrast, lighter oil-water mixture is through inward eddy, by sand retention pipe, enter oil recovery pump intake, heavier sand facies move to wall place, rotational flow separation cylinder bottom with outer eddy flow, through liquid outlet, flow out.If, enter in the liquid phase of sand retention pipe and contain a small amount of gravel, rotation and on sand grains under the effect of sand block sheet, can change linear flow into by spiral flow, turn back collide sand block sheet in the flow process making progress after.This kind of downhole rotational-flow desander is simple in structure, is easy to be arranged on oil extraction pump lower end, can utilize the eddy flow principle of liquid to carry out liquid-solid separation to the production fluid of oil well, and sand controlling result is good, has guaranteed the long-time use of oil extraction pump.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model.
1-pump barrel connector in figure, 2-Taper Pipe, 3-straight tube, 4-sand block sheet, 5-reducing short circuit, 6-deflection cone, 7-inlet opening, 8-liquid outlet, 9-bottom plug, 10-rotational flow separation cylinder.
The specific embodiment:
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, this kind is with the downhole rotational-flow desander of sand block sheet, comprise a pump barrel connector 1 being connected with the Pump Suction Nozzle of oil extraction pump, its unique distinction is: below pump barrel connector 1, be connected with sand block cylinder, reducing short circuit 5, rotational flow separation cylinder 10 and bottom plug 9 in turn.
Wherein, the straight tube that rotational flow separation cylinder 10 is hollow, has some inlet openings 7 in the stage casing of cylinder, at the end of cylinder, section has poroid liquid outlet 8, the aperture of liquid outlet 8 is 2 times of aperture of inlet opening 7, is fixed with a deflection cone 6 on bottom plug 9, and the vertex of a cone of deflection cone 6 is positioned on inlet opening 7; In described sand block cylinder, be fixed with a sand retention pipe 3 forming after being connected with Taper Pipe 2 by straight tube 3.In addition, the sand block sheet 4 that has some inclinations in straight tube 3; The center through hole that is positioned at reducing short circuit 5 after the lower end inlet seal of sand retention pipe 3 connects, described lower end entrance is connected with rotational flow separation cylinder 10, and the upper end outlet of Taper Pipe 2 is positioned at the diversion cavity of pump barrel connector 1.
During use, this kind of downhole rotational-flow desander is arranged on to the Pump Suction Nozzle lower end of oil extraction pump.Start after oil extraction pump, under pump suction, oil well liquid-producing is sucked by feed tube, under the guide functions of deflection cone, produce eddy flow, because solid-liquid two-phase exists density contrast, lighter oil-water mixture, through inward eddy, enters oil recovery pump intake by sand retention pipe, heavier sand facies move to wall place, rotational flow separation cylinder bottom with outer eddy flow, through liquid outlet, flow out.If, enter in the liquid phase of sand retention pipe and contain a small amount of gravel, rotation and on sand grains under the effect of sand block sheet, can change linear flow into by spiral flow, turn back collide sand block sheet in the flow process making progress after.
Claims (1)
1. the downhole rotational-flow desander with sand block sheet, comprise a pump barrel connector (1) being connected with the Pump Suction Nozzle of oil extraction pump, it is characterized in that: in pump barrel connector (1) below, be connected with sand block cylinder, reducing short circuit (5), rotational flow separation cylinder (10) and bottom plug (9) in turn; Wherein, the straight tube that rotational flow separation cylinder (10) is hollow, in the stage casing of cylinder, have some inlet openings (7), in the end of cylinder section, have poroid liquid outlet (8), the aperture of liquid outlet (8) is 2 times of aperture of inlet opening (7), on bottom plug (9), be fixed with a deflection cone (6), the vertex of a cone of deflection cone (6) is positioned on inlet opening (7); In described sand block cylinder, be fixed with a sand retention pipe (3) forming after being connected with Taper Pipe (2) by straight tube (3), in straight tube (3), have the sand block sheet (4) of some inclinations; The center through hole that is positioned at reducing short circuit (5) after the lower end inlet seal of sand retention pipe (3) connects, described lower end entrance is connected with rotational flow separation cylinder (10), and the upper end outlet of Taper Pipe (2) is positioned at the diversion cavity of pump barrel connector (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320823031.8U CN203584384U (en) | 2013-12-13 | 2013-12-13 | Underground cyclone desander with block sand plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320823031.8U CN203584384U (en) | 2013-12-13 | 2013-12-13 | Underground cyclone desander with block sand plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203584384U true CN203584384U (en) | 2014-05-07 |
Family
ID=50582320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320823031.8U Expired - Fee Related CN203584384U (en) | 2013-12-13 | 2013-12-13 | Underground cyclone desander with block sand plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203584384U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105130134A (en) * | 2015-09-29 | 2015-12-09 | 泗县峻林机械有限公司 | Water filtration sand remover |
| CN109025919A (en) * | 2018-10-26 | 2018-12-18 | 中国石油化工股份有限公司 | The recovery method of the dynamic layer recovery ratio of raising oil reservoir time and secondary dynamic layer flow string |
| CN110173253A (en) * | 2019-04-30 | 2019-08-27 | 大庆油田有限责任公司 | Down-hole multilevel liquid stream self-rotation high-precision oily-water seperating equipment |
-
2013
- 2013-12-13 CN CN201320823031.8U patent/CN203584384U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105130134A (en) * | 2015-09-29 | 2015-12-09 | 泗县峻林机械有限公司 | Water filtration sand remover |
| CN105130134B (en) * | 2015-09-29 | 2017-06-16 | 泗县峻林机械有限公司 | Water filtration desander |
| CN109025919A (en) * | 2018-10-26 | 2018-12-18 | 中国石油化工股份有限公司 | The recovery method of the dynamic layer recovery ratio of raising oil reservoir time and secondary dynamic layer flow string |
| CN109025919B (en) * | 2018-10-26 | 2023-12-19 | 中国石油化工股份有限公司 | Exploitation method for improving oil reservoir secondary dynamic layer recovery ratio and secondary dynamic layer oil production pipe column |
| CN110173253A (en) * | 2019-04-30 | 2019-08-27 | 大庆油田有限责任公司 | Down-hole multilevel liquid stream self-rotation high-precision oily-water seperating equipment |
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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: 20140507 Termination date: 20151213 |
|
| EXPY | Termination of patent right or utility model |