CN101250990A - Oil well horizontal sand-pumping device as well as sand-pumping method thereof - Google Patents
Oil well horizontal sand-pumping device as well as sand-pumping method thereof Download PDFInfo
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- CN101250990A CN101250990A CNA2008101039111A CN200810103911A CN101250990A CN 101250990 A CN101250990 A CN 101250990A CN A2008101039111 A CNA2008101039111 A CN A2008101039111A CN 200810103911 A CN200810103911 A CN 200810103911A CN 101250990 A CN101250990 A CN 101250990A
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Abstract
The invention relates to the petroleum machinery technical field, in particular to a horizontal bailing device for an oil well and a bailing method using the same. The invention provides the horizontal bailing device for the oil well and the bailing method using the same to solve a problem of sealing property for a check valve in the prior bailing process and a problem of frictions between a pump body of a bailing pump and a bushing and between the pump body of the bailing pump and a coupling, wherein, a piston rod, a drainage hole, an upper valve, a piston barrel, a hard piston, a soft piston, a desilting pipe and a tool for cutting and pushing sands are arranged in sequence from a turning position of the bailing pump to the other end of a horizontal segment inside the pump body; a sand blocking short circuit is arranged between the piston barrel and the desilting pipe, and a centralizer is arranged on the pump body of the horizontal segment; the tail end of the horizontal segment of the bailing pump is provided with a bottom valve and a sand shovel, wherein, both the upper valve and the bottom valve are check valves, and a valve core and a valve seat are jointed through a spring. The horizontal bailing device for the oil well has the advantages of excellent sealing property; small friction between the bailing pump and the bushing and between the bailing pump and the coupling; long service life; effective prevention of massive sand particles from entering inside the piston barrel; strong sand pumping property of the piston; and high work efficiency.
Description
Technical field
The present invention relates to the petroleum machinery technical field, be specifically related to the horizontal sand-bailing equipment of a kind of oil well and drag for the sand method.
Background technology
In the Oilfield developing process, because loose sand formation cementation intensity is low or the influence of pressing crack construction, sand grains can flow into pit shaft along with formation fluid, causes pit shaft obstruction, down-hole string, instrument and ground installation wearing and tearing aggravation, and causes the oil well reduce or stop production.Generally speaking, adopt water circulation to carry method, the long-pending sand of pit shaft is broken up and take ground to by swiftly flowing liquid.Because the requirement of compatibility, density and the viscosity on sand cleaning fluid and stratum, this sand washing mode very easily cause formation contaminant and ground environment to pollute; For the bigger oil well of formation leakage amount, the hydraulic sand washing mode has certain degree of difficulty, can not finish the sand washing operation sometimes, and the job execution cycle is long, and down-hole accident easily takes place, and the work operations amount is bigger, the cost height.Conventional sand washing process is difficult for going out sand grains, and oil reservoir is polluted; And mechanical sand bucket is according to the operating principle of oil well pump, its power is working rig, the oil pipe on sand bucket top is as the line shaft of plunger, the bottom sand sediment pipe is as storage sand pocket, according to the height of sand post, the length of decision storage sand oil pipe, handling oil pipe up and down, directly sand is extracted in the storage sand oil pipe, finishes and drag for the sand operation.When strata pressure is low, oil reservoir is missed when serious, and this technology has bigger advantage.The restriction on the design feature but machinery drags for sand technology, the present range of application of this technology only is confined to Vertical Well, can't directly use horizontal well.
Summary of the invention
In order to solve the existing sealing problem that drags for ball-and-seat in the sand technology, the friction problem between the pump housing of sand bucket and sleeve pipe and the box cupling the invention provides the horizontal sand-bailing equipment of a kind of oil well and drags for the sand method, improved the efficient of dragging for sand, saved cost, and desanding is thorough, not polluted reservoir.
In order to achieve the above object, the technical solution used in the present invention is: the horizontal sand-bailing equipment of a kind of oil well,, in the other end pump housing of horizontal segment, be provided with piston rod, outage successively, go up valve, piston cylinder, hard piston, soft piston, sand sediment pipe, broken sand push away the sand instrument from the turning of sand bucket; Be provided with the sand block short circuit between described piston cylinder and the sand sediment pipe, on the horizontal segment pump housing, be provided with centralizer; The end of described sand bucket horizontal segment is provided with bottom valve and sand shovel, and last valve and bottom valve are ball-and-seat, connects with spring between spool and the valve seat.
Above-mentioned centralizer is rubber centralizer or rolling wheel centralizer.
The sand method of dragging for of the horizontal sand-bailing equipment of a kind of oil well, its step is as follows:
(1) before each operation, all needs the ball-and-seat of horizontal segment is carried out the pressure adjustment, can only unidirectionally pass through sand bucket to guarantee the horizontal segment fluid;
(2) be lowered in the process at pipe string, the broken sand of sand bucket front end pushes away the sand instrument and clears up remaining on the casing wall residual sand, and pushes it to and inhale the sand mouth, bottom valve contact sand face, and the weight of horizontal segment is supported by centralizer;
(3) when carrying power oil pipe on the tractor hoist, drive piston rod, soft piston and hard piston and rise, at this moment go up valve and close, following valve is opened, and carries sand and enter sand sediment pipe, and sand in the sand sediment pipe and well liquid are up because sand proportion is bigger, constantly sink, well liquid rises;
(4) when tractor hoist is transferred power oil pipe, drive piston rod, soft piston and hard piston and descend, at this moment to go up valve and open, following valve cuts out, and sand can not be got back in the sleeve pipe, and the top well liquid that does not contain sand, valve and outage are got back to the oil jacket annular space again on the process;
(5) put operation through putting on repeatedly, can realize sand is dragged for into sand sediment pipe, take pit shaft out of by power oil pipe.
Compared with prior art, beneficial effect of the present invention is:
Good airproof performance of the present invention, the friction between sand bucket and sleeve pipe and the box cupling is few, and long service life effectively guarantees can not enter a large amount of sand grains in the piston cylinder, and the sand ability of taking out of piston is strong, high efficiency.
Description of drawings
Fig. 1 is the utility model overall structure schematic diagram.
Reference numeral:
1 one outages, the 2-piston cylinder, the 3-piston rod, the last valve of 4-, the hard piston of 5-, the soft piston of 6-, the 7-sand sediment pipe, 8-sand block short circuit, the broken sand of 9-pushes away the sand instrument, 10-centralizer, 11-bottom valve, 12-sand shovel, 13-spring, 14-power oil pipe.
The specific embodiment
Below in conjunction with accompanying drawing, structure of the present invention is done detailed description.
Referring to Fig. 1, the invention provides the horizontal sand-bailing equipment of a kind of oil well, from the turning of sand bucket in the other end pump housing of horizontal segment, be provided with piston rod 3, outage 1 successively, go up valve 4, piston cylinder 2, hard piston 5, soft piston 6, sand sediment pipe 7, broken sand push away sand instrument 9, broken sand pushes away sand instrument 9 and the sand grains on the internal surface of sleeve pipe can be scraped off, and simultaneously transfers in the process residual sand shifted onto at the pipe string and inhales the sand mouth; Be provided with sand block short circuit 8 between described piston cylinder 2 and the sand sediment pipe 7, the well liquid that comes in the pumping is filtered, can guarantee can not enter a large amount of sand grains in the piston cylinder 2; On the horizontal segment pump housing, be provided with centralizer 10, centralizer 10 can reduce sand bucket last put put in and friction between sleeve pipe and the box cupling, increase the service life, described centralizer 10 is rubber centralizer or rolling wheel centralizer; The end of described sand bucket horizontal segment is provided with bottom valve 11 and sand shovel 12, and last valve 4 and bottom valve 11 are ball-and-seat, connects with spring 13 between spool and the valve seat.
The present invention drag for the sand method to drag for the sand step as follows:
(1) before each operation, all needs the ball-and-seat of horizontal segment is carried out the pressure adjustment, can only unidirectionally pass through sand bucket to guarantee the horizontal segment fluid;
(2) be lowered in the process at pipe string, the broken sand of sand bucket front end pushes away the sand instrument and clears up remaining on the casing wall residual sand, and pushes it to and inhale the sand mouth, bottom valve contact sand face, and the weight of horizontal segment is supported by centralizer;
(3) when carrying power oil pipe on the tractor hoist, drive piston rod, soft piston and hard piston and rise, at this moment go up valve and close, following valve is opened, and carries sand and enter sand sediment pipe, and sand in the sand sediment pipe and well liquid are up because sand proportion is bigger, constantly sink, well liquid rises;
(4) when tractor hoist is transferred power oil pipe, drive piston rod, soft piston and hard piston and descend, at this moment to go up valve and open, following valve cuts out, and sand can not be got back in the sleeve pipe, and the top well liquid that does not contain sand, valve and outage are got back to the oil jacket annular space again on the process;
(5) put operation through putting on repeatedly, can realize sand is dragged for into sand sediment pipe, take pit shaft out of by power oil pipe.
Claims (3)
1, the horizontal sand-bailing equipment of a kind of oil well, it is characterized in that: the horizontal sand-bailing equipment of a kind of oil well,, in the other end pump housing of horizontal segment, be provided with piston rod, outage successively, go up valve, piston cylinder, hard piston, soft piston, sand sediment pipe, broken sand push away the sand instrument from the turning of sand bucket; Be provided with the sand block short circuit between described piston cylinder and the sand sediment pipe, on the horizontal segment pump housing, be provided with centralizer; The end of described sand bucket horizontal segment is provided with bottom valve and sand shovel, and last valve and bottom valve are ball-and-seat, connects with spring between spool and the valve seat.
2, the horizontal sand-bailing equipment of a kind of oil well according to claim 1, it is characterized in that: described centralizer is rubber centralizer or rolling wheel centralizer.
3, the sand method of dragging for of the horizontal sand-bailing equipment of a kind of oil well according to claim 1, it is characterized in that: its step is as follows:
(1) before each operation, all needs the ball-and-seat of horizontal segment is carried out the pressure adjustment, can only unidirectionally pass through sand bucket to guarantee the horizontal segment fluid;
(2) be lowered in the process at pipe string, the broken sand of sand bucket front end pushes away the sand instrument and clears up remaining on the casing wall residual sand, and pushes it to and inhale the sand mouth, bottom valve contact sand face, and the weight of horizontal segment is supported by centralizer;
(3) when carrying power oil pipe on the tractor hoist, drive piston rod, soft piston and hard piston and rise, at this moment go up valve and close, following valve is opened, and carries sand and enter sand sediment pipe, and sand in the sand sediment pipe and well liquid are up because sand proportion is bigger, constantly sink, well liquid rises;
(4) when tractor hoist is transferred power oil pipe, drive piston rod, soft piston and hard piston and descend, at this moment to go up valve and open, following valve cuts out, and sand can not be got back in the sleeve pipe, and the top well liquid that does not contain sand, valve and outage are got back to the oil jacket annular space again on the process;
(5) put operation through putting on repeatedly, can realize sand is dragged for into sand sediment pipe, take pit shaft out of by power oil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101039111A CN101250990B (en) | 2008-04-11 | 2008-04-11 | Oil well horizontal sand-pumping device as well as sand-pumping method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101039111A CN101250990B (en) | 2008-04-11 | 2008-04-11 | Oil well horizontal sand-pumping device as well as sand-pumping method thereof |
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| Publication Number | Publication Date |
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| CN101250990A true CN101250990A (en) | 2008-08-27 |
| CN101250990B CN101250990B (en) | 2011-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008101039111A Active CN101250990B (en) | 2008-04-11 | 2008-04-11 | Oil well horizontal sand-pumping device as well as sand-pumping method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337847A (en) * | 2011-08-31 | 2012-02-01 | 中国石油化工股份有限公司 | Automatically starting type sand fishing pump |
| CN103498641A (en) * | 2013-09-24 | 2014-01-08 | 北京恩瑞达科技有限公司 | Sand removing device and method of oil well negative-pressure machine |
| CN106939778A (en) * | 2017-04-27 | 2017-07-11 | 河南理工大学 | A kind of under-voltage reservoir-level well composite bridge plug quick drill miller skill and implementation |
| CN107869322A (en) * | 2016-09-26 | 2018-04-03 | 中国石油化工股份有限公司 | Drag for sand instrument in underground |
| CN110797805A (en) * | 2019-11-02 | 2020-02-14 | 陈丹依 | Auxiliary device is laid in municipal works cable pit |
| CN112112594A (en) * | 2020-09-22 | 2020-12-22 | 朱鸿磊 | Petroleum instrument fishing device |
| CN113669030A (en) * | 2021-08-16 | 2021-11-19 | 朱梦钦 | Be applied to iron fillings adsorption equipment of production logging in-process |
| CN115180389A (en) * | 2022-08-15 | 2022-10-14 | 华蓥市正大汽配有限公司 | Extracting device of vapour lamp shade die-casting production usefulness |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6257850B1 (en) * | 1997-03-21 | 2001-07-10 | Kenneth S. Conn | Piston and seals for a reciprocating pump |
| CN2479202Y (en) * | 2001-04-29 | 2002-02-27 | 中国石油天然气股份有限公司 | Super-long stroke downhole bailer |
| CN201027513Y (en) * | 2007-05-08 | 2008-02-27 | 新疆石油管理局采油工艺研究院 | Spraying bailing bucket |
| CN201180520Y (en) * | 2008-04-11 | 2009-01-14 | 安东石油技术（集团）有限公司 | Apparatus used for oil well sand pumping |
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2008
- 2008-04-11 CN CN2008101039111A patent/CN101250990B/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337847A (en) * | 2011-08-31 | 2012-02-01 | 中国石油化工股份有限公司 | Automatically starting type sand fishing pump |
| CN103498641A (en) * | 2013-09-24 | 2014-01-08 | 北京恩瑞达科技有限公司 | Sand removing device and method of oil well negative-pressure machine |
| CN107869322A (en) * | 2016-09-26 | 2018-04-03 | 中国石油化工股份有限公司 | Drag for sand instrument in underground |
| CN106939778A (en) * | 2017-04-27 | 2017-07-11 | 河南理工大学 | A kind of under-voltage reservoir-level well composite bridge plug quick drill miller skill and implementation |
| CN106939778B (en) * | 2017-04-27 | 2021-09-07 | 河南理工大学 | Rapid drilling and milling process for composite bridge plug of horizontal well of under-pressure reservoir and implementation method |
| CN110797805A (en) * | 2019-11-02 | 2020-02-14 | 陈丹依 | Auxiliary device is laid in municipal works cable pit |
| CN112112594A (en) * | 2020-09-22 | 2020-12-22 | 朱鸿磊 | Petroleum instrument fishing device |
| CN112112594B (en) * | 2020-09-22 | 2024-01-30 | 杨晓峰 | Petroleum instrument salvaging device |
| CN113669030A (en) * | 2021-08-16 | 2021-11-19 | 朱梦钦 | Be applied to iron fillings adsorption equipment of production logging in-process |
| CN115180389A (en) * | 2022-08-15 | 2022-10-14 | 华蓥市正大汽配有限公司 | Extracting device of vapour lamp shade die-casting production usefulness |
| CN115180389B (en) * | 2022-08-15 | 2023-10-27 | 华蓥市正大汽配有限公司 | Material taking device for die casting production of automobile lamp shade |
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| Publication number | Publication date |
|---|---|
| CN101250990B (en) | 2011-02-09 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Tongsheng Weier Engineering Technology Co.,Ltd. Assignor: Anton Oilfield Services (Group) Ltd. Contract record no.: 2011990000586 Denomination of invention: Oil well horizontal sand-pumping device as well as sand-pumping method thereof Granted publication date: 20110209 License type: Exclusive License Open date: 20080827 Record date: 20110711 |
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| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Weihong Inventor after: Han Min Inventor before: Chen Weihong |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: CHEN WEIHONG TO: CHEN WEIHONG HAN MIN |
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| TR01 | Transfer of patent right |
Effective date of registration: 20221109 Address after: 100102 No.8, pingcui West Road, Chaoyang District, Beijing Patentee after: ANTON OILFIELD SERVICES (GROUP) Ltd. Patentee after: XINJIANG ANTON OIL TECHNOLOGY SERVICES Co.,Ltd. Address before: 100102, No. 8 Tsui Xi Road, East Lake, Beijing, Chaoyang District Patentee before: ANTON OILFIELD SERVICES (GROUP) Ltd. |
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| TR01 | Transfer of patent right |