CN203670171U - Annular-valve type anti-cavitation oil well pump - Google Patents

Annular-valve type anti-cavitation oil well pump Download PDF

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Publication number
CN203670171U
CN203670171U CN201420046213.3U CN201420046213U CN203670171U CN 203670171 U CN203670171 U CN 203670171U CN 201420046213 U CN201420046213 U CN 201420046213U CN 203670171 U CN203670171 U CN 203670171U
Authority
CN
China
Prior art keywords
valve
annular
pump
oil well
plunger
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 - Fee Related
Application number
CN201420046213.3U
Other languages
Chinese (zh)
Inventor
孙淑云
杨琴文
宋其华
刘信伟
马新玉
李月
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sinopec Shengli Oilfield Co Gudao Oil Extraction Plant
Original Assignee
Sinopec Shengli Oilfield Co Gudao Oil Extraction Plant
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sinopec Shengli Oilfield Co Gudao Oil Extraction Plant filed Critical Sinopec Shengli Oilfield Co Gudao Oil Extraction Plant
Priority to CN201420046213.3U priority Critical patent/CN203670171U/en
Application granted granted Critical
Publication of CN203670171U publication Critical patent/CN203670171U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

An annular-valve type anti-cavitation oil well pump comprises a fixed valve (1), a travelling valve (2), a plunger (3), a pump cylinder (4), an annular valve (6), a valve seat (7) and a pull rod (8). The annular-valve type anti-cavitation oil well pump is characterized in that the pump cylinder (4) of the annular-valve type anti-cavitation oil well pump is cylindrical and is provided with the fixed valve (1) at the bottom, the plunger (3) is mounted in the pump cylinder (4), the travelling valve (2) is arranged at the bottom of the plunger (3), the pull rod (8) is in threaded connection with the upper portion of the plunger (3), and the annular valve (6) arranged on the pull rod (8) is matched with the valve seat (7) on the upper portion of the plunger (3) to realize opening and closing. The annular-valve type anti-cavitation oil well pump is applicable to oil well production with low casing pressure and gas-oil ratio as well as high casing pressure and gas-oil ratio, cavitation of the oil well pump is effectively prevented, pump inspection cycle is prolonged, oil well yield is increased, oil well operation cost is reduced, and labor intensity of workers is lowered.

Description

Ring valve formula airlock-resistant oil pump
Technical field
the utility model relates to oilfield exploitation down-hole pumping unit, specifically a kind of ring valve formula airlock-resistant oil pump.
Background technique
in oil field machinery oil is produced, conventionally down-hole adopts conventional oil well pump oil pumping, can be satisfied with cover and force down, the oil well production that oil-gas ratio is low, and high for casing pressure, the oil well that oil-gas ratio is high can not normally be produced, easily make oil well pump cavitate, when serious, take out not fuel-displacedly, not only affect oil well output, and increase oil well operation expense, increase the labor intensity of operating worker.
Summary of the invention
the purpose of this utility model is exactly in view of the foregoing defects the prior art has, and a kind of ring valve formula airlock-resistant oil pump is provided.
technical solutions of the utility model comprise: standing valve, traveling valve, plunger, pump barrel, annular valve, valve seat, pull bar.Described ring valve formula airlock-resistant oil pump pump barrel is cylindrical shape, and bottom is provided with standing valve, and plunger is contained in pump barrel, the bottom of plunger is provided with traveling valve, and plunger upper part is connected with pull rod screw, and pull bar is provided with annular valve, annular valve coordinates with the valve seat of plunger upper part, realizes and opening and closing.
annular valve in above-mentioned ring valve formula airlock-resistant oil pump is the superimposed body of cylinder and circular cone, and bottom is circular cone structure.
valve seat center in above-mentioned ring valve formula airlock-resistant oil pump is provided with " loudspeaker " mouthful.
above-mentioned ring valve formula airlock-resistant oil pump annular valve in the time of down stroke cuts out in time under the drive of pull bar, and bears head of liquid, and minimizing liquid enters the resistance of pump barrel, space between annular valve and piston increases, pressure reduces rapidly, and lower travelling valve is opened rapidly, upper pump chamber oil-feed.When upstroke, annular valve is opened in time under the drive of pull bar, and lower travelling valve is closed rapidly, upper pump chamber oil extraction, and standing valve is opened, and crude oil enters lower pump chamber, prevents that gas from entering pump chamber pump is produced to cavitation effect.
the beneficial effects of the utility model are: it is low not to be only applicable to casing pressure, the oil well production that oil-gas ratio is low, and it is high to be applicable to casing pressure, the oil well production that oil-gas ratio is high, effectively prevent that oil well pump from cavitating, extend pump detection period, increase oil well output, reduce oil well operation cost, alleviate the labor intensity of operating worker.
Brief description of the drawings
fig. 1-the utility model master looks complete section structural representation.
in figure, 1. standing valve, 2. traveling valve, 3. plunger, 4. pump barrel, 5. epicoele, 6. annular valve, 7. valve seat, 8. pull bar.
Embodiment
by reference to the accompanying drawings, the utility model will be further described:
ring valve formula airlock-resistant oil pump is made up of standing valve 1, traveling valve 2, plunger 3, pump barrel 4, annular valve 6, valve seat 7, pull bar 8.Cylindrical shape pump barrel 4 bottoms of described ring valve formula airlock-resistant oil pump are provided with standing valve 1, the plunger 3 that bottom is provided with traveling valve 2 is contained in pump barrel 4, and plunger 3 tops are connected with pull bar 8, and pull bar 8 is provided with annular valve 6, annular valve 6 coordinates with the valve seat 7 on plunger 3 tops, realizes and opening and closing.When oil well operation, first, pump barrel 4 is connected with oil pipe, down to oil reservoir middle part; Secondly, pull bar 8 is connected with rod string, plunger 3, annular valve 6, valve seat 7 times are in pump barrel; The 3rd, sucker rod top connects polished rod, and is connected with rope hanger, gets final product opening well and making production.

Claims (3)

1. a ring valve formula airlock-resistant oil pump, comprising: standing valve (1), traveling valve (2), plunger (3), pump barrel (4), annular valve (6), valve seat (7), pull bar (8); It is characterized in that: described ring valve formula airlock-resistant oil pump pump barrel (4) is cylindrical shape, bottom is provided with standing valve (1), plunger (3) is contained in pump barrel (4), the bottom of plunger (3) is provided with traveling valve (2), plunger (3) top is threaded with pull bar (8), pull bar (8) is provided with annular valve (6), and annular valve (6) coordinates with the valve seat (7) on plunger (3) top, realizes and opening and closing.
2. ring valve formula airlock-resistant oil pump according to claim 1, is characterized in that: described annular valve (6) is the superimposed body of cylinder and circular cone, and bottom is circular cone structure.
3. ring valve formula airlock-resistant oil pump according to claim 1, is characterized in that: described valve seat (7) center is provided with " loudspeaker " mouthful.
CN201420046213.3U 2014-01-24 2014-01-24 Annular-valve type anti-cavitation oil well pump Expired - Fee Related CN203670171U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420046213.3U CN203670171U (en) 2014-01-24 2014-01-24 Annular-valve type anti-cavitation oil well pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420046213.3U CN203670171U (en) 2014-01-24 2014-01-24 Annular-valve type anti-cavitation oil well pump

Publications (1)

Publication Number Publication Date
CN203670171U true CN203670171U (en) 2014-06-25

Family

ID=50966475

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420046213.3U Expired - Fee Related CN203670171U (en) 2014-01-24 2014-01-24 Annular-valve type anti-cavitation oil well pump

Country Status (1)

Country Link
CN (1) CN203670171U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105570102A (en) * 2015-12-29 2016-05-11 中国石油天然气股份有限公司 Underground oil and gas mixed pumping pump for oil well
CN106545487A (en) * 2015-09-16 2017-03-29 中国石油化工股份有限公司 A kind of hollow oil well pump of ring valve overhead type
CN112594174A (en) * 2020-11-26 2021-04-02 中国石油天然气股份有限公司 Oil-well pump for oil pumping machine to exploit petroleum and natural gas

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106545487A (en) * 2015-09-16 2017-03-29 中国石油化工股份有限公司 A kind of hollow oil well pump of ring valve overhead type
CN105570102A (en) * 2015-12-29 2016-05-11 中国石油天然气股份有限公司 Underground oil and gas mixed pumping pump for oil well
CN112594174A (en) * 2020-11-26 2021-04-02 中国石油天然气股份有限公司 Oil-well pump for oil pumping machine to exploit petroleum and natural gas

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140625

Termination date: 20150124