CN101949277A - Oil extraction method of weight adding under pump and oil well pump with weight adding under pump - Google Patents
Oil extraction method of weight adding under pump and oil well pump with weight adding under pump Download PDFInfo
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- CN101949277A CN101949277A CN2010102626793A CN201010262679A CN101949277A CN 101949277 A CN101949277 A CN 101949277A CN 2010102626793 A CN2010102626793 A CN 2010102626793A CN 201010262679 A CN201010262679 A CN 201010262679A CN 101949277 A CN101949277 A CN 101949277A
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Abstract
The invention discloses an oil extraction method of weight adding under a pump and an oil well pump with weight adding under the pump, used in pumping units and oil pumped wells in the petroleum industry. In the oil extraction method of weight adding under the pump, a weight adding bar is connected under an oil well pump plunger assembly to reduce the bend and the deformation of a pumping rod string. The oil well pump with weight adding under the pump comprises a pump cylinder assembly, the plunger assembly and an auxiliary mechanism under the pump. The plunger assembly is provided with a liquid outlet valve and a liquid inlet pump, an upper plunger and a lower plunger are connected with a connection bar through a plunger lower joint to connect the weight adding bar under the plunger assembly. The method uses the liquid inlet valve with an offset structure outside the pump while adding weight under the pump, thereby lightening the eccentric wear of pipes and bars and reducing the stroke loss. Due to the weight adding bar arranged under the pump, the pumping rod is kept in the straightening state all the time under the action of gravity, thereby lightening the mutual abrasion of the pipes and the bars. The weight adding under the pump can reduce the elastic bending and deformation of the pumping bar string, thereby reducing the stroke loss and enhancing the filling factor of the oil well pump.
Description
Technical field
The present invention relates to the oil recovery technique of petroleum industry, increase the weight of oil well pump under oil production method that increases the weight of under particularly a kind of pump and the pump thereof, be used for the pumping production well.
Background technology
At present the tubing pump of the rod pumping pump that uses in the pumping production well can be divided into two big classes, is called conventional oil well pump for the oil well pump that meets oil well pump type design and manufacturing, for the oil well pump with special purpose, is called Special subsurface pump as thick oil pump etc.This two classes pump advantage is had nothing in common with each other, and shortcoming but has roughly the same.Mainly show three aspects: the one, descending plunger resistance is bigger than normal, and the roofbolt distortion is increased the weight of, and side-abrasion of rod string increases the weight of; The 2nd, plunger is descending slower, and certain damping phenomena is arranged, and influences the coefficient of fullness of pump; The 3rd, loss of plunger stroke is bigger.At the problem of ubiquitous above three aspects of oil well pump, adopt the method that increases the weight of on oil pumping rod centering device and the pump at present usually.Owing to increase the weight of on the pump, oil pipe is serious on its weighted lever wearing and tearing pump, leakage phenomena occurs, poor effect.Along with the oil field enters middle and later periods exploitation, the increase of well water, well depth and exceptional well, more than the problem of three aspects more outstanding, be badly in need of solving.
Summary of the invention
The technical problem to be solved in the present invention is to improve the shortcoming and defect of prior art, provide under the oil production method that increases the weight of under a kind of pump and the pump thereof and increase the weight of oil well pump, alleviate that the existing descending resistance of oil well pump is big, side-abrasion of rod string on the pump, problem that loss of plunger stroke is big, improve the coefficient of fullness of oil well pump, improve pump efficiency.
The object of the present invention is achieved like this:
The oil production method that increases the weight of under a kind of pump is the below that weighted lever is connected oil pump plunger assembly, reduces the crooked and distortion of rod string.
Be used for increasing the weight of under the pump increasing the weight of oil well pump under the pump of oil production method, comprise auxiliary body under pump barrel assembly, assembly for plunger and the pump, assembly for plunger is provided with liquid valve and feed liquor valve, and upper plug is connected with connecting rod by the plunger lower contact with lower plunger, weighted lever is connected the below of assembly for plunger.The feed liquor valve comprises the pump feed liquor valve in feed liquor valve and the pump of setovering outward, and setover the outward feed pathway of feed liquor valve of its pump is biased in the outside of pump barrel and following pump barrel; The feed liquor valve is installed in the lower lumen of lower plunger in its pump.
Be used for increasing the weight of under the pump to increase the weight of oil well pump under the pump of oil production method and comprise auxiliary body under pump barrel assembly, assembly for plunger and the pump, assembly for plunger is provided with liquid valve and feed liquor valve, and weighted lever is connected the below of assembly for plunger, adopts the pump feed liquor valve of setovering outward.
Compared with prior art, when the present invention increases the weight of, adopt the feed liquor valve and the interior feed liquor valve of pump of the outer bias structure of pump under adopting pump, can bring following significant effect:
1, alleviate side-abrasion of rod string: owing under the pump weighted lever is installed, under action of gravity, sucker rod is in stretching state all the time, thereby alleviates the mutual wearing and tearing of pipe bar.
2, reduce loss of plunger stroke: promptly during the oil pumper upstroke, sucker rod is in stretching state; During down stroke, sucker rod produces elastic buckling and distortion under the effect of resistance, by increasing the weight of to reduce the elastic buckling and the distortion of rod string under the pump, promptly reduce loss of plunger stroke.
3, adopt the feed liquor valve of the outer bias structure of two-way feed liquor and pump, effectively improved the centrad of plunger and pump barrel, reduce eccentric wear; Increase oil inlet quantity, reduced the oil-feed resistance, significantly reduced the descending resistance of plunger simultaneously.Liquid outlet channel on the plunger strengthens, and resistance reduces, and has reduced the resistance of pump discharge, improves pump efficiency.The feed liquor and the fluid valve seat that adopt internal diameter to strengthen reduce the resistance that liquid flows; The upper and lower joint of plunger all adopts the design of streamline pyramid type, and resistance reduces during up-downgoing; The present invention has strengthened the liquid inlet and outlet passage of the upper and lower joint of plunger, has just increased lead channel and liquid outlet groove.By the minimizing liquid flowing resistance, thereby raising feed liquor amount and liquid outlet quantity reach raising pump efficiency purpose.
4, improve the coefficient of fullness of pump: increased the weight of to resist rod sag under the pump and caused reducing of plunger effective stroke, improved the feed liquor amount and the coefficient of fullness of pump.
5, prolonged the application life of oil well pump: increase the weight of to make plunger to be in midline position all the time under the pump, avoid the eccentric wear of plunger and pump barrel; The phenomenon of plunger percussion feed liquor valve can not appear in the structure design of the outer biasing of pump, avoids the damage of feed liquor valve assembly; Pump is setovered outward and limit spring has been installed in the feed liquor valve, has improved and prolonged the sealing performance of feed liquor valve.
Description of drawings
Fig. 1 is the structural representation that increases the weight of oil well pump embodiment 1 under the pump of the present invention.
Fig. 2 is the structural representation that increases the weight of oil well pump embodiment 2 under the pump of the present invention.
The specific embodiment
Describe in detail according to the concrete structure that increases the weight of oil well pump under oil production method that increases the weight of under a kind of pump provided by the present invention and the pump below in conjunction with drawings and Examples.
The oil production method that increases the weight of under a kind of pump is the below that weighted lever 18 is connected oil pump plunger assembly.
Embodiment 1
Be used for increasing the weight of under a kind of pump to increase the weight of oil well pump under the pump of oil production method and comprise auxiliary body under pump barrel assembly, assembly for plunger and the pump, assembly for plunger is provided with liquid valve and feed liquor valve, upper plug 10 is connected with connecting rod 12 by plunger lower contact 11 with lower plunger 16, weighted lever 18 is connected the below of assembly for plunger.Weighted lever 18 is connected with the lower plunger 16 of assembly for plunger by weighted lever joint 26.Auxiliary body under the pump is connected the below of pump barrel assembly, and auxiliary body comprises tail tube joint 19, tail pipe 20, screen casing 21 and the plug 22 that connects successively under the pump, is connected with the following pump barrel 17 of pump barrel assembly by tail tube joint 19.The feed liquor valve comprises the pump feed liquor valve in feed liquor valve and the pump of setovering outward, and setover the outward feed pathway of feed liquor valve of its pump is biased in the outside of pump barrel 9 and following pump barrel 17; The feed liquor valve comprises feed liquor valve 27 and valve seat 28 in its pump, is installed in the lower lumen of lower plunger 16.The pump feed liquor valve of setovering outward comprises biasing housing 14, valve ball 3, valve seat 2 and fixing swivel nut 1, and biasing housing 14 is provided with the admission chamber of biasing, constitutes feed pathway; Between the top of admission chamber and valve ball 3, limit spring 4 is housed, valve seat 2 and fixedly swivel nut 1 be fixed on the below of valve ball 3; The connection chamber of biasing housing 14 is connected with pump lower contact 15 with pump center tap 13 respectively.Plunger lower contact 11 and weighted lever joint 26 are equipped with inlet opening; Connecting rod 12 is the hollow tubular bar.Liquid valve comprises plunger top connection 6, fluid valve ball 7 and fluid valve seat 8, and plunger top connection 6 is provided with fluid hole and valve chamber, and the top cylindrical of its housing is a pyramidal structure; Plunger top connection 6 is connected with fluid valve seat 8, and fluid valve ball 7 is installed in the valve chamber of plunger top connection 6.
This pump is installed in position suitable below the well fluid level, and top is connected with rod string.The pump barrel assembly comprises pump top connection 5, last pump barrel 9, pump center tap 13, following pump barrel 17 and tail tube joint 19; Assembly for plunger comprises plunger top connection 6, fluid valve ball 7, fluid valve seat 8, upper plug 10, plunger lower contact 11, pump setover feed liquor valve, connecting rod 12 and lower plunger 16 outward.Pump top connection 5 tops connect tubing string, and the bottom connects pump barrel 9, pump center tap 13, pump lower contact 15, following pump barrel 17 and tail tube joint 19 successively, by tail tube joint 19 union tails 20, screen casing 21 and plug 22.In the pump by rod string columns in series successively joint 6, fluid valve seat 8, upper plug 10, plunger lower contact 11, connecting rod 12, lower plunger 16, weighted lever joint 26 and weighted lever 18 beyond the Great Wall.
When upper plug 10 was up, fluid valve ball 7 was closed liquid valve seat 8 under the effect of oil pipe fluid column.Liquid in the oil pipe of upper plug more than 10 is up arranged, simultaneously upper and lower plunger 10 and 16 with last pump barrel 9 and following pump barrel 17 between the increase of annular chamber volume, the formation low pressure chamber.The pump feed liquor valve of setovering outward in feed liquor valve and the pump is opened under the pump intake pressure effect, and annular chamber is full of liquid.When upper and lower plunger 10 and 16 when descending, the annular chamber volume reduces, and forms high pressure chest, and the pump feed liquor valve of setovering outward in feed liquor valve and the pump cuts out, and liquid valve is opened.Liquid in the high pressure chest in liquid valve enters oil pipe, upper and lower plunger 10 and 16 constantly upper and lower motions, liquid just is discharged to ground continuously.
Embodiment 2
Be used for increasing the weight of under a kind of pump to increase the weight of oil well pump under the pump of oil production method and comprise auxiliary body under pump barrel assembly, assembly for plunger and the pump, assembly for plunger is provided with liquid valve and feed liquor valve, weighted lever 18 is connected the below of assembly for plunger, auxiliary body under the pump is connected the below of pump barrel assembly.Weighted lever 18 is connected with the connecting rod 23 of assembly for plunger by weighted lever joint 26.Auxiliary body comprises tail pipe 20 and plug 22 under the pump, and tail pipe 20 is connected with pump lower contact 15.Liquid valve comprises plunger top connection 6, plunger upper seal support 24 and plunger bottom sealing socket 25, and the lower surface of plunger upper seal support 24 is provided with interior chamfering, and plunger top connection 6, upper plug 10 and plunger upper seal support 24 are connected successively; Plunger bottom sealing socket 25 is fixed on the bottom of connecting rod 23, and the top of its plunger bottom sealing socket 25 is that globoidal structure cooperates with the lower surface of plunger upper seal support 24, forms sealing.The feed liquor valve is the pump feed liquor valve of setovering outward, comprises biasing housing 14, valve ball 3, valve seat 2 and fixing swivel nut 1, and biasing housing 14 is provided with the admission chamber of biasing, constitutes feed pathway; Between the top of admission chamber and valve ball 3, limit spring 4 is housed, valve seat 2 and fixedly swivel nut 1 be fixed on the below of valve ball 3; The connection chamber of biasing housing 14 is connected with pump lower contact 15 with pump center tap 13 respectively.
When upper plug 10 was up, upper plug 10 made plunger upper seal support 24 combine, seal with plunger bottom sealing socket 25 under the effect of friction.Liquid in the oil pipe of upper plug more than 10 is up arranged, and upper plug 10 increases with last pump barrel 9 annular chamber volumes simultaneously, forms low pressure chamber.The pump feed liquor valve of setovering is outward opened under the pump intake pressure effect, and annular chamber is full of liquid.When upper plug 10 was descending, the annular chamber volume reduced, and formed high pressure chest, and the pump feed liquor valve of setovering outward cuts out, and liquid valve is opened.Liquid in the high pressure chest in liquid valve enters oil pipe, the constantly upper and lower motion of upper plug 10, liquid just is discharged to ground endlessly.
Claims (10)
1. the oil production method that increases the weight of under the pump is the below that weighted lever (18) is connected oil pump plunger assembly.
2. be used for increasing the weight of oil well pump under the pump of the oil production method that increases the weight of under claim 1 pump, comprise auxiliary body under pump barrel assembly, assembly for plunger and the pump, assembly for plunger is provided with liquid valve and feed liquor valve, upper plug (10) is connected with connecting rod (12) by plunger lower contact (11) with lower plunger (16), it is characterized in that weighted lever (18) is connected the below of assembly for plunger.
3. increase the weight of oil well pump under the pump according to claim 2, it is characterized in that described weighted lever (18) is connected with the lower plunger (16) of assembly for plunger by weighted lever joint (26).
4. increase the weight of oil well pump under the pump according to claim 2, it is characterized in that described feed liquor valve comprises the pump feed liquor valve in feed liquor valve and the pump of setovering outward, setover the outward feed pathway of feed liquor valve of its pump is biased in the outside of pump barrel (9) and following pump barrel (17); Feed liquor valve in its pump is installed in the lower lumen of lower plunger (16).
5. increase the weight of oil well pump under the pump according to claim 4, it is characterized in that the described pump feed liquor valve of setovering comprises biasing housing (14), valve ball (3), valve seat (2) and fixing swivel nut (1) outward, the housing (14) of setovering is provided with the admission chamber of biasing; Between the top of admission chamber and valve ball (3), limit spring (4) is housed, valve seat (2) and fixedly swivel nut (1) be fixed on the below of valve ball (3); The connection chamber of biasing housing (14) is connected with pump lower contact (15) with pump center tap (13) respectively.
6. according to increasing the weight of oil well pump under claim 2 or the 3 described pumps, it is characterized in that described plunger lower contact (11) and weighted lever joint (26) are equipped with inlet opening; Connecting rod (12) is the hollow tubular bar.
7. be used for increasing the weight of oil well pump under the pump of the oil production method that increases the weight of under claim 1 pump, comprise auxiliary body under pump barrel assembly, assembly for plunger and the pump, assembly for plunger is provided with liquid valve and feed liquor valve, it is characterized in that weighted lever (18) is connected the below of assembly for plunger.
8. increase the weight of oil well pump under the pump according to claim 7, it is characterized in that weighted lever (18) is connected with the connecting rod (23) of assembly for plunger by weighted lever joint (26).
9. increase the weight of oil well pump under the pump according to claim 7, it is characterized in that liquid valve comprises plunger top connection (6), plunger upper seal support (24) and plunger bottom sealing socket (25), the lower surface of plunger upper seal support (24) is provided with interior chamfering, and plunger top connection (6), upper plug (10) and plunger upper seal support (24) are connected successively; Plunger bottom sealing socket (25) is fixed on the bottom of connecting rod (23), and the top of its plunger bottom sealing socket (25) is that globoidal structure cooperates with the lower surface of plunger upper seal support (24).
10. increase the weight of oil well pump under the pump according to claim 7, it is characterized in that described feed liquor valve is the pump feed liquor valve of setovering outward, comprise biasing housing (14), valve ball (3), valve seat (2) and fixing swivel nut (1), the housing (14) of setovering is provided with the admission chamber of biasing; Between the top of admission chamber and valve ball (3), limit spring (4) is housed, valve seat (2) and fixedly swivel nut (1) be fixed on the below of valve ball (3); The connection chamber of biasing housing (14) is connected with pump lower contact (15) with pump center tap (13) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010262679 CN101949277B (en) | 2010-08-21 | 2010-08-21 | Oil extraction method of weight adding under pump and oil well pump with weight adding under pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010262679 CN101949277B (en) | 2010-08-21 | 2010-08-21 | Oil extraction method of weight adding under pump and oil well pump with weight adding under pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101949277A true CN101949277A (en) | 2011-01-19 |
| CN101949277B CN101949277B (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010262679 Expired - Fee Related CN101949277B (en) | 2010-08-21 | 2010-08-21 | Oil extraction method of weight adding under pump and oil well pump with weight adding under pump |
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| CN (1) | CN101949277B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541664A (en) * | 2013-09-27 | 2014-01-29 | 中国石油化工股份有限公司 | Hydraulic feedback type sucker rod weighting device |
| CN111364926A (en) * | 2018-12-25 | 2020-07-03 | 中国石油天然气股份有限公司 | Coal slime cleaning device |
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| JP2001234682A (en) * | 2000-02-23 | 2001-08-31 | Mitsubishi Materials Corp | Excavation method, and excavating tool |
| CN2591272Y (en) * | 2002-12-28 | 2003-12-10 | 谢文献 | Condensed oil pump with weighing rod under pump |
| CN2665404Y (en) * | 2003-12-17 | 2004-12-22 | 东营市江润石油科技发展有限公司 | Oil thickening pump with a below-mounted weight adding device |
| CN2849229Y (en) * | 2005-11-13 | 2006-12-20 | 中石化胜利油田有限公司采油工艺研究院 | Eccentrically arranged valve type oil pumping pump |
| CN201461340U (en) * | 2009-08-12 | 2010-05-12 | 冯新永 | Feedback type oil-well pump with weight at bottom of pump |
-
2010
- 2010-08-21 CN CN 201010262679 patent/CN101949277B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001234682A (en) * | 2000-02-23 | 2001-08-31 | Mitsubishi Materials Corp | Excavation method, and excavating tool |
| CN2591272Y (en) * | 2002-12-28 | 2003-12-10 | 谢文献 | Condensed oil pump with weighing rod under pump |
| CN2665404Y (en) * | 2003-12-17 | 2004-12-22 | 东营市江润石油科技发展有限公司 | Oil thickening pump with a below-mounted weight adding device |
| CN2849229Y (en) * | 2005-11-13 | 2006-12-20 | 中石化胜利油田有限公司采油工艺研究院 | Eccentrically arranged valve type oil pumping pump |
| CN201461340U (en) * | 2009-08-12 | 2010-05-12 | 冯新永 | Feedback type oil-well pump with weight at bottom of pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541664A (en) * | 2013-09-27 | 2014-01-29 | 中国石油化工股份有限公司 | Hydraulic feedback type sucker rod weighting device |
| CN103541664B (en) * | 2013-09-27 | 2015-09-30 | 中国石油化工股份有限公司 | Hydraulic feedback formula sucker rod weight increasing device |
| CN111364926A (en) * | 2018-12-25 | 2020-07-03 | 中国石油天然气股份有限公司 | Coal slime cleaning device |
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| Publication number | Publication date |
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| CN101949277B (en) | 2013-07-03 |
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Granted publication date: 20130703 Termination date: 20160821 |