CN102562542B - Sand-preventing scale-preventing oil well pump with long plunger piston - Google Patents
Sand-preventing scale-preventing oil well pump with long plunger piston Download PDFInfo
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- CN102562542B CN102562542B CN201010611709.7A CN201010611709A CN102562542B CN 102562542 B CN102562542 B CN 102562542B CN 201010611709 A CN201010611709 A CN 201010611709A CN 102562542 B CN102562542 B CN 102562542B
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Abstract
A kind of sand-preventing scale-preventing oil well pump with long plunger piston, short pump barrel and pump barrel lengthen cylinder and are connected, short pump barrel upper end is provided with centering ring and wiper ring, long-plunger is arranged on short pump barrel and pump barrel lengthens in cylinder, short pump barrel and pump barrel lengthen cylinder and are also provided with sand sediment pipe outward, and described pump barrel lengthens cylinder lower end and is provided with at least one one-way valve; Sand sediment pipe upper end is connected with tubing coupling by righting box cupling, extension nipple, and sand sediment pipe lower end is connected with duplex fitting; Described long-plunger two ends are provided with the first traveling valve and the second traveling valve.The present invention effectively can prevent junk, sand grains and fouling card buried column plug and blocking standing valve, realizes normally working in containing sand and fouling crude oil oil well, improves pump efficiency, extend pump detection period.
Description
Technical field
The present invention relates to a kind of oil well pump, particularly a kind of sand-preventing scale-preventing oil well pump with long plunger piston containing sand and fouling crude oil for oil field pumping.
Background technique
At present, oil field mainly adopts common tubing pump to carry out mechanical oil recovery, and in oil well production, unavoidably always there will be some foreign material: have the foreign material fallen into from well head during operation in oil pipe, there are dirty skin, scale that R a T wall comes off, have the silt particle etc. carried out in fluid; In the oil well having scale formation, after plunger or pump barrel fouling, produce the stuck situation of plunger.These situations can bring harm to oil well production, cause oil well pump to lose efficacy, and main manifestations is:
(1) when oil well fouling, plunger or pump barrel fouling, produce plunger stuck, cause oil well pump to lose efficacy.
(2) when pumping, foreign material enter in pump barrel, and plunger is stuck, cause oil well pump to lose efficacy.
(3) when pumping, foreign material pad, on ball valve sealing face, makes valve ball not set, and causes oil well pump to miss and loses efficacy.
(4) when stopping taking out, foreign material are deposited on oil well pump, are buried by plunger and block standing valve, and when making to take out again, plunger and standing valve akinesia, cause oil well pump to lose efficacy.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of sand-preventing scale-preventing oil well pump with long plunger piston, normally can work, improve pump efficiency, extend pump detection period in containing sand and fouling crude oil oil well.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of sand-preventing scale-preventing oil well pump with long plunger piston, short pump barrel and pump barrel lengthen cylinder and are connected, short pump barrel upper end is provided with centering ring and wiper ring, long-plunger is arranged on short pump barrel and pump barrel lengthens in cylinder, short pump barrel and pump barrel lengthen cylinder and are also provided with sand sediment pipe outward, and described pump barrel lengthens cylinder lower end and is provided with at least one one-way valve;
Sand sediment pipe upper end is connected with tubing coupling by righting box cupling, extension nipple, and sand sediment pipe lower end is connected with duplex fitting;
Described long-plunger two ends are provided with the first traveling valve and the second traveling valve.
Isolating ring is provided with in described wiper ring.
Described wiper ring sidewall is provided with many oblique grooves.
Described pump barrel lengthens cylinder lower end and is provided with the first standing valve and the second standing valve.
Form annular between described pump barrel lengthening cylinder and sand sediment pipe inwall and deposit junk passage.
A kind of sand-preventing scale-preventing oil well pump with long plunger piston provided by the invention, has following beneficial effect:
1) have employed long-plunger and coordinate short pump barrel structure shorter by comparison, when oil well pump work with when stopping taking out, long-plunger top first traveling valve one section does not enter short pump barrel all the time, make junk, sand grains can not enter short pump barrel or pile up at short pump barrel oral area, but by forming annular space between pump barrel lengthening cylinder cylindrical and sand sediment pipe endoporus, the sand setting deposited under duplex fitting sinks in dirty tail pipe.Therefore effectively can prevent junk, sand grains card buried column plug and blocking standing valve, and the phenomenon that valve ball causes leakage lived by junk pad, improves pump efficiency, extends pump detection period.
2) short pump barrel oral area devises wiper ring, isolating ring, when in fouling oil well, plunger produces fouling, by wiper ring, the dirt shovel on plunger can be wiped off, and the isolating ring adopting composite material to make can be isolated in outside short pump barrel by shoveling the dirt wiped off, can effectively prevent plunger stuck.
3) have employed two standing valves in pump bottom, when the dirt come off when upper end and sand grains make one of them standing valve poorly sealed, another standing valve still can normally work, thus reduces the possibility of leakage.
In sum, the present invention effectively can prevent junk, sand grains and fouling card buried column plug and blocking standing valve, realizes normally working in containing sand and fouling crude oil oil well, improves pump efficiency, extend pump detection period.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of wiper ring in the present invention.
Embodiment
As in Fig. 1, a kind of sand-preventing scale-preventing oil well pump with long plunger piston, short pump barrel 8 and pump barrel lengthen cylinder 9 and are connected, and short pump barrel 8 upper end is provided with centering ring 7 and wiper ring 5, are provided with many skewed slots at wiper ring 5 sidewall.Wiper ring 5 is for adopting the metal metal ring of high-hardness corrosion-resistant, and what many skewed slots of setting can strengthen wiper ring 5 scrapes dirt effect.
Long-plunger 14 is arranged on short pump barrel 8 and pump barrel lengthens in cylinder 9, and short pump barrel 8 and pump barrel lengthen outside cylinder 9 and be also provided with sand sediment pipe 4, and described pump barrel lengthens cylinder 9 lower end and is provided with at least one one-way valve; The scheme optimized lengthens cylinder 9 lower end at pump barrel to be provided with the first standing valve 10 and the second standing valve 11.
Sand sediment pipe 4 upper end is connected with tubing coupling 1 by righting box cupling 3, extension nipple 2, and sand sediment pipe 4 lower end is connected with duplex fitting 12;
Described long-plunger 14 two ends are provided with the first traveling valve 13 and the second traveling valve 15.
Isolating ring 6 is provided with in described wiper ring 5.Isolating ring 6 adopts composite material to make, such as bronze base teflon, graphite and/or abrasive rubber, and isolating ring 6 can prevent the sand grains in the dirt that scrapes and crude oil from entering pump barrel, reduces holddown probability.
Form annular between described pump barrel lengthening cylinder 9 and sand sediment pipe 4 inwall and deposit junk passage.Bottom can hang sand setting and sink dirty tail pipe, makes the sand grains in the dirt that comes off because of reasons such as vibrations in oil well pump upper bar, pipe part and crude oil sink dirty tail pipe by the bottom sand setting that annular deposition junk passage enters into pump, thus reduces the probability of holddown.
During use, long-plunger 14 upper end is connected with sucker rod, during up stroke, plunger assembly is up under the drive of sucker rod, first traveling valve 13 and the second traveling valve 15 are closed, and below plunger assembly, pump chamber volume increases, pressure drop, first standing valve 10 and the second standing valve 11 are opened under pressure, and liquid to enter below plunger assembly in pump chamber.
During down stroke, plunger assembly is descending, below plunger assembly, pump chamber volume reduces, pressure increase, first standing valve 10 and the second standing valve 11 are closed under the effect of self gravitation and chamber pressure, first traveling valve 13 and the second traveling valve 15 are opened under the effect of chamber pressure, and below plunger assembly, pump intracavity liquid to drain into above plunger assembly in oil pipe.
Claims (1)
1. a sand-preventing scale-preventing oil well pump with long plunger piston, it is characterized in that: short pump barrel (8) and pump barrel lengthen cylinder (9) and be connected, short pump barrel (8) upper end is provided with centering ring (7) and wiper ring (5), is provided with isolating ring (6) in described wiper ring (5);
Described wiper ring (5) sidewall is provided with many oblique grooves;
Long-plunger (14) is arranged on short pump barrel (8) and pump barrel lengthens in cylinder (9), short pump barrel (8) and pump barrel lengthen cylinder (9) and are also provided with sand sediment pipe (4) outward, form annular and deposit junk passage between described pump barrel lengthening cylinder (9) and sand sediment pipe (4) inwall;
Described pump barrel lengthens cylinder (9) lower end and is provided with at least one one-way valve;
Sand sediment pipe (4) upper end is connected with tubing coupling (1) by righting box cupling (3), extension nipple (2), and sand sediment pipe (4) lower end is connected with duplex fitting (12);
Described long-plunger (14) two ends are provided with the first traveling valve (13) and the second traveling valve (15);
Described pump barrel lengthens cylinder (9) lower end and is provided with the first standing valve (10) and the second standing valve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010611709.7A CN102562542B (en) | 2010-12-29 | 2010-12-29 | Sand-preventing scale-preventing oil well pump with long plunger piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010611709.7A CN102562542B (en) | 2010-12-29 | 2010-12-29 | Sand-preventing scale-preventing oil well pump with long plunger piston |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102562542A CN102562542A (en) | 2012-07-11 |
| CN102562542B true CN102562542B (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010611709.7A Active CN102562542B (en) | 2010-12-29 | 2010-12-29 | Sand-preventing scale-preventing oil well pump with long plunger piston |
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| CN104533765A (en) * | 2014-11-12 | 2015-04-22 | 胜利油田高原石油装备有限责任公司 | Double-fixation scale-blockage-preventing long-plunger sand-preventing oil well pump |
| CN106401538B (en) * | 2016-11-09 | 2019-07-30 | 山东祺龙海洋石油钢管股份有限公司 | A kind of mining device of electric submersible oil reciprocation pump on oil/gas well |
| CN106593354B (en) * | 2016-12-26 | 2019-05-07 | 中国石油天然气股份有限公司 | A kind of pre- fouling antiscale tube pump combination unit |
| CN107084123B (en) * | 2017-06-27 | 2018-11-13 | 河南福侨石油装备有限公司 | Fixed sand setting chamber Anti-sand oil pump |
| CN107605435A (en) * | 2017-10-20 | 2018-01-19 | 唐山远洋潜水电泵有限公司 | It is a kind of to carry the dynamic tubular-rod type anti-scaling oil-well pump for depositing dirty chamber |
| CN110617212B (en) * | 2019-11-12 | 2021-06-25 | 青岛新胜石油机械有限公司 | Plunger, anti-scaling tubular oil well pump and oil pumping system |
| CN114687707A (en) * | 2020-12-29 | 2022-07-01 | 中国石油化工股份有限公司 | Quick flowing back tubular column of machine pump anti-sticking |
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| US5095976A (en) * | 1988-11-08 | 1992-03-17 | Appleton Billy D | Tubing sand pump |
| US6371206B1 (en) * | 2000-04-20 | 2002-04-16 | Kudu Industries Inc | Prevention of sand plugging of oil well pumps |
| CN2610117Y (en) * | 2003-02-28 | 2004-04-07 | 大庆油田有限责任公司 | Antiscale oil-well pump |
| CN2634143Y (en) * | 2003-05-30 | 2004-08-18 | 国营第三八八厂 | Rod type sand-proof oil pump |
| CN2893227Y (en) * | 2006-04-02 | 2007-04-25 | 冯金财 | Descaling oil-well pump |
| CN101117956A (en) * | 2006-08-03 | 2008-02-06 | 朱桂华 | Anti-scaling, anti-corrosive and sand prevention ceramic oil-well pump and manufacturing method therefor |
| CN201059256Y (en) * | 2007-06-05 | 2008-05-14 | 山东宝世达石油装备制造有限公司 | Long plunger type sand-proof oil-well pump |
| CN201554633U (en) * | 2009-10-16 | 2010-08-18 | 中船重工中南装备有限责任公司 | Falling object protective oil pump capable of performing annulus logging |
| CN201916171U (en) * | 2010-12-29 | 2011-08-03 | 中船重工中南装备有限责任公司 | Sand-resistant and dirt-resistant long plunger piston oil pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2634144Y (en) * | 2003-05-30 | 2004-08-18 | 国营第三八八厂 | Novel combined plunger anti-clip oil pump |
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2010
- 2010-12-29 CN CN201010611709.7A patent/CN102562542B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5095976A (en) * | 1988-11-08 | 1992-03-17 | Appleton Billy D | Tubing sand pump |
| US6371206B1 (en) * | 2000-04-20 | 2002-04-16 | Kudu Industries Inc | Prevention of sand plugging of oil well pumps |
| CN2610117Y (en) * | 2003-02-28 | 2004-04-07 | 大庆油田有限责任公司 | Antiscale oil-well pump |
| CN2634143Y (en) * | 2003-05-30 | 2004-08-18 | 国营第三八八厂 | Rod type sand-proof oil pump |
| CN2893227Y (en) * | 2006-04-02 | 2007-04-25 | 冯金财 | Descaling oil-well pump |
| CN101117956A (en) * | 2006-08-03 | 2008-02-06 | 朱桂华 | Anti-scaling, anti-corrosive and sand prevention ceramic oil-well pump and manufacturing method therefor |
| CN201059256Y (en) * | 2007-06-05 | 2008-05-14 | 山东宝世达石油装备制造有限公司 | Long plunger type sand-proof oil-well pump |
| CN201554633U (en) * | 2009-10-16 | 2010-08-18 | 中船重工中南装备有限责任公司 | Falling object protective oil pump capable of performing annulus logging |
| CN201916171U (en) * | 2010-12-29 | 2011-08-03 | 中船重工中南装备有限责任公司 | Sand-resistant and dirt-resistant long plunger piston oil pump |
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| CN102562542A (en) | 2012-07-11 |
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