CN202073755U - Deep well oil pump suitable for highly-deviated well - Google Patents

Deep well oil pump suitable for highly-deviated well Download PDF

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Publication number
CN202073755U
CN202073755U CN2011201464950U CN201120146495U CN202073755U CN 202073755 U CN202073755 U CN 202073755U CN 2011201464950 U CN2011201464950 U CN 2011201464950U CN 201120146495 U CN201120146495 U CN 201120146495U CN 202073755 U CN202073755 U CN 202073755U
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CN
China
Prior art keywords
valve
fixed
effluent
oil pipe
well
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.)
Expired - Lifetime
Application number
CN2011201464950U
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Chinese (zh)
Inventor
赵晓伟
吕亿明
黄伟
王百
牛彩云
李大建
朱洪征
韩二涛
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Petrochina Co Ltd
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Petrochina Co Ltd
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Publication date
Application filed by Petrochina Co Ltd filed Critical Petrochina Co Ltd
Priority to CN2011201464950U priority Critical patent/CN202073755U/en
Application granted granted Critical
Publication of CN202073755U publication Critical patent/CN202073755U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The deep well oil pump is suitable for a highly-inclined well and is applied to oil extraction of the highly-inclined well. A side flow valve seat is fixed on the upper part of the fixed valve assembly and in the oil pipe; the lateral flow valve seat is annular and provided with a central hole, and 2-6 axial through holes are uniformly distributed around the central hole of the lateral flow valve seat; a lateral flow valve ball is arranged at the upper part of the axial through hole of each lateral flow valve seat, a flow measuring valve spring is arranged on each lateral flow valve ball, and a flow measuring valve cover is fixed on the flow measuring valve spring and the inner wall of the oil pipe; the axial through hole of the flow valve seat corresponds to the axial through hole of the flow measuring valve cover; a pump cylinder is fixed in the lateral flow valve seat central hole and the lateral flow valve cover central hole, and the central line of the pump cylinder and the central line of the oil pipe are the same straight line; a plunger is disposed within the barrel. The effect is as follows: the opening and closing of the fixed valve ball and the side flow valve ball are not influenced by well deviation, and the fixed valve ball and the side flow valve ball can still normally work in a highly deviated well; the plunger is solid, has high bearing capacity and is suitable for deep pumping of an oil well.

Description

The deep-well oil pump that is fit to high angle hole
Technical field
The utility model relates to oil recovery technique field, oil field, and the oil well pump that particularly a kind of oil well uses is a kind of oil well pump that is applicable to the dark extraction oil well of big gradient.
Background technique
The oil well pump oil recovery kit that is absolutely necessary also is the visual plant that down-hole liquid is lifted to ground in the oilfield exploitation.The oil well pump of oil field use at present is whole tube pump and bush pump, and the working state of pump is in upstroke, and traveling valve cuts out, standing valve is opened, and sucks liquid, well head drain in the pump; In down stroke, traveling valve is opened, and standing valve cuts out, and pump is the discharge opeing body in oil pipe.When oil well well bore oblique angle surpasses 35 °, and oil well pump is when down stroke, and standing valve can't effectively cut out, and causes the pump leakage, and pump efficiency reduces, and causes not fluid of oil well when serious, and pumping unit idle running causes energy dissipation.
The model utility content
The purpose of this utility model is: a kind of deep-well oil pump of suitable high angle hole is provided, is applicable to big gradient well recovery, when surpassing 35 ° at oil well well bore oblique angle, can effectively close standing valve, improve the working efficiency of oil well pump.
The technical solution adopted in the utility model is: the deep-well oil pump that is fit to high angle hole, mainly form by plunger, pump barrel, oil pipe, flow measurement valve bonnet, flow measurement valve spring, effluent valve ball, effluent valve seat and standing valve assembly, in the lower end of oil pipe the standing valve assembly is arranged, the standing valve assembly comprises standing valve cover, standing valve spring, fixed valve ball and fixed valve base.Annular fixed valve base screw thread is fixed in the oil pipe, on the top of fixed valve base a fixed valve ball is arranged, a standing valve spring is arranged at the top of fixed valve ball, at the top of standing valve spring circular standing valve cover is arranged, axial hole is arranged on the standing valve cover, and standing valve cover is fixed on the tube inner wall; It is characterized in that: in oil pipe and on the top of standing valve cover, be fixed with the effluent valve seat; The effluent valve seat is that ring has center hole, is evenly distributed with 2~6 axial holes around the effluent valve base center hole; On the axial hole top of each effluent valve seat an effluent valve ball is arranged, a flow measurement valve spring is arranged on each effluent valve ball, on the flow measurement valve spring and on tube inner wall, be fixed with the flow measurement valve bonnet; The flow measurement valve bonnet is that ring has center hole, is evenly distributed with 2~6 axial holes around the effluent valve base center hole, and the axial hole of stream valve seat is corresponding with the axial hole of flow measurement valve bonnet; At effluent valve base center hole and flow measurement valve bonnet center hole internal fixation a pump barrel is arranged, pump barrel is a same straight line at center line and oil pipe center line; A plunger is arranged in pump barrel.The upper end of plunger can connect sucker rod, and sucker rod can drive plunger to-and-fro motion in pump barrel.Fixed valve ball and effluent valve ball all adopt the spring on-off structure, are not subjected to Well Deflection Influence.Do not have flow channels in the plunger, oil stream enters oil pipe from the annular space between oil pipe and the pump barrel, is fit to the deep-well deflecting well oil withdrawal.
Summary is fit to the working principle of the deep-well oil pump of high angle hole.Oil pipe is fixed on the pump barrel outside, and forms flow channels between the pump barrel, and this flow channels is communicated with by the side direction valve with the interior flow channels of pump barrel.In upstroke, plunger is up, and when the side direction valve ball was closed, UNICOM promptly was cut off.During upstroke, the side direction valve ball is closed, and fixed valve ball is opened, and the pump barrel internal pressure is lower than pump intake pressure, and oil flows to into pump barrel inside.During down stroke, plunger is descending, and fixed valve ball is closed, and the side direction valve ball is opened, and oil stream enters oil pipe by the annular space flow channels.So repeatedly, finish pumping discharge opeing process.
The beneficial effects of the utility model: the utility model is fit to the deep-well oil pump of high angle hole, and fixed valve ball and effluent valve ball all adopt the spring on-off structure, still can normally close when hole angle surpasses 35 °, is not subjected to Well Deflection Influence.Do not have flow channels in the plunger, oil stream enters oil pipe from the annular space between oil pipe and the pump barrel, is fit to the deep-well deflecting well oil withdrawal.
Description of drawings
Fig. 1 is the deep-well oil pump structural profile schematic representation that the utility model is fit to high angle hole.
Among the figure, 1-plunger, 2-pump barrel, 3-oil pipe, 4-flow measurement valve bonnet, 5-flow measurement valve spring, 6-effluent valve ball, 7-effluent valve seat, 8-standing valve cover, 9-standing valve spring, 10-fixed valve ball, 11-fixed valve base.
Embodiment
Embodiment 1: the deep-well oil pump with a suitable high angle hole is an example, and the utility model is described in further detail.
Consult Fig. 1.The utility model is fit to the deep-well oil pump of high angle hole, mainly is made up of plunger 1, pump barrel 2, oil pipe 3, standing valve cover 4, flow measurement valve spring 5, effluent valve ball 6, effluent valve seat 7 and standing valve assembly.In the lower end of oil pipe 3 a standing valve assembly is arranged, the standing valve assembly comprises standing valve cover 8, standing valve spring 9, fixed valve ball 10 and fixed valve base 11.Annular fixed valve base 11 is fixed in the oil pipe 3 with thread connecting mode, and a fixed valve ball 10 is arranged on the top of fixed valve base 11, and a standing valve spring 9 is arranged at the top of fixed valve ball 10, and standing valve spring 9 is the compression type spring.At the top of standing valve spring 9 circular standing valve cover 8 is arranged, 6 axial holes are arranged on the standing valve cover 8, standing valve cover 8 is fixed on oil pipe 3 inwalls.
In oil pipe 3 and on the top of standing valve cover 8, be fixed with 1 effluent valve seat 7; Effluent valve seat 7 is evenly distributed with 6 axial holes for ring has center hole around effluent valve seat 7 center holes.On the axial hole top of each effluent valve seat 7 an effluent valve ball 6 is arranged, a flow measurement valve spring 5 is arranged on each effluent valve ball 6, flow measurement valve spring 5 is the compression type spring.Be fixed with 1 standing valve cover 4 on the flow measurement valve spring 5 and on oil pipe 3 inwalls.Standing valve cover 4 is evenly distributed with 6 axial holes for ring has center hole around effluent valve seat 7 center holes, the axial hole of stream valve seat 7 is corresponding with the axial hole of standing valve cover 4.At effluent valve seat 7 center holes and standing valve cover 4 center hole internal fixation a pump barrel 2 is arranged, the lower end screw thread of pump barrel 2 is fixed in the center hole of effluent valve seat 7.Pump barrel 2 is a same straight line at center line and oil pipe 3 center lines.A cylinder bodily form plunger 1 is arranged in pump barrel 2.Plunger 1 external diameter is identical with pump barrel 2 internal diameters.

Claims (1)

1. the deep-well oil pump of a suitable high angle hole, mainly form by plunger (1), pump barrel (2), oil pipe (3), flow measurement valve bonnet (4), flow measurement valve spring (5), effluent valve ball (6), effluent valve seat (7) and standing valve assembly, there is the standing valve assembly lower end at oil pipe (3), and the standing valve assembly comprises standing valve cover (8), standing valve spring (9), fixed valve ball (10) and fixed valve base (11); Annular fixed valve base (11) screw thread is fixed in the oil pipe (3), on the top of fixed valve base (11) fixed valve ball (10) is arranged, a standing valve spring (9) is arranged at the top of fixed valve ball (10), at the top of standing valve spring (9) circular standing valve cover (8) is arranged, standing valve cover has axial hole on (8), and standing valve cover (8) is fixed on oil pipe (3) inwall; It is characterized in that: in oil pipe (3) and on the top of standing valve cover (8), be fixed with effluent valve seat (7); Effluent valve seat (7) is evenly distributed with 2~6 axial holes for ring has center hole around effluent valve seat (7) center hole; On the axial hole top of each effluent valve seat (7) an effluent valve ball (6) is arranged, on each effluent valve ball (6), a flow measurement valve spring (5) is arranged, go up and on oil pipe (3) inwall, be fixed with flow measurement valve bonnet (4) at flow measurement valve spring (5); Flow measurement valve bonnet (4) is evenly distributed with 2~6 axial holes for ring has center hole around effluent valve seat (7) center hole, the axial hole of stream valve seat (7) is corresponding with the axial hole of flow measurement valve bonnet (4); At effluent valve seat (7) center hole and flow measurement valve bonnet (4) center hole internal fixation a pump barrel (2) is arranged, pump barrel (2) is a same straight line at center line and oil pipe (3) center line; A plunger (1) is arranged in pump barrel (2).
CN2011201464950U 2011-05-10 2011-05-10 Deep well oil pump suitable for highly-deviated well Expired - Lifetime CN202073755U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201464950U CN202073755U (en) 2011-05-10 2011-05-10 Deep well oil pump suitable for highly-deviated well

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201464950U CN202073755U (en) 2011-05-10 2011-05-10 Deep well oil pump suitable for highly-deviated well

Publications (1)

Publication Number Publication Date
CN202073755U true CN202073755U (en) 2011-12-14

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Application Number Title Priority Date Filing Date
CN2011201464950U Expired - Lifetime CN202073755U (en) 2011-05-10 2011-05-10 Deep well oil pump suitable for highly-deviated well

Country Status (1)

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CN (1) CN202073755U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103807151A (en) * 2012-11-06 2014-05-21 中国石油化工股份有限公司 Continuous lifting pump for pumping unit and lifting method thereof
CN111852844A (en) * 2019-04-30 2020-10-30 中国石油天然气股份有限公司 Flexible metal oil well pump device in horizontal well and resetting device of fixed valve ball

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103807151A (en) * 2012-11-06 2014-05-21 中国石油化工股份有限公司 Continuous lifting pump for pumping unit and lifting method thereof
CN111852844A (en) * 2019-04-30 2020-10-30 中国石油天然气股份有限公司 Flexible metal oil well pump device in horizontal well and resetting device of fixed valve ball

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CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20111214