CN202560526U - Double-acting layering oil well pump - Google Patents

Double-acting layering oil well pump Download PDF

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Publication number
CN202560526U
CN202560526U CN2012201770378U CN201220177037U CN202560526U CN 202560526 U CN202560526 U CN 202560526U CN 2012201770378 U CN2012201770378 U CN 2012201770378U CN 201220177037 U CN201220177037 U CN 201220177037U CN 202560526 U CN202560526 U CN 202560526U
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CN
China
Prior art keywords
pump
barrel
plunger
pumping
box cupling
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
CN2012201770378U
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Chinese (zh)
Inventor
赵海洋
王金东
陈桂娟
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Northeast Petroleum University
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Northeast Petroleum University
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Publication date
Application filed by Northeast Petroleum University filed Critical Northeast Petroleum University
Priority to CN2012201770378U priority Critical patent/CN202560526U/en
Application granted granted Critical
Publication of CN202560526U publication Critical patent/CN202560526U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A double-acting layering oil well pump mainly solves the problems of interlayer interference existing in commingling by a single pump and excessively complicated structure by double pumps in the prior art. The double-acting layering oil well pump is characterized in that a sucker rod, an upward pumping outer pump cylinder upper section, an upward pumping inner pump cylinder nipple, an upward pumping inner pump cylinder nipple coupling, an upward pumping inner pump cylinder, a sealing ring, an upward pumping outer pump cylinder coupling, an upward pumping outer pump cylinder middle section, a main oil draining valve, a plunger joint, an upward pumping plunger, a hollow sucker rod, an upward pumping inner pump cylinder lower nipple, an upward pumping inner pump cylinder lower nipple coupling, a seal pipe, an upward pumping outer pump cylinder lower section, an upward pumping annular oil draining valve, an upward pumping annular filling valve, a nipple, a coupling, a downward pumping cylinder, a downward pumping plunger, a downward pumping coupling, a downward pumping travelling valve, a downward pumping nipple, an outer coupling and a downward pumping standing valve are sequentially connected between an upper connector and a lower connector. The double-acting layering oil well pump can simultaneously pump two oil layers at different formation pressure and can achieve oil draining on up-down strokes, and production efficiency can be greatly improved when the double-acting layering oil well pump is applicable to commingling.

Description

A kind of double-action layering oil well pump
Technical field
The utility model relates to a kind of oil well pump, specifically, relates to a kind of double-action layering oil well pump.
Background technique
Nowadays be that the throughput of each layer is not quite similar in the oil field of heterogeneous body structure in multilayer, developing separately as if every cover series of strata does not have economic benefit, closes to adopt reserves abundance is increased, and has remarkable economic efficiency.Yet, if adopt single pump to close when adopting because differences such as each layer permeability and formation pressures, the common problem that exists interlayer interference, the part oil-bearing series can not get effectively employing, and has a strong impact on exploitation effect.If adopt the double pump branch to adopt with taking out technology, whole pump structure is complicated, and pump detection period is short, and seal section is long simultaneously, and the whole descending resistance of pump is big.
Summary of the invention
The technical problem of mentioning in order to solve in the background technique, the utility model provide a kind of double-action layering oil well pump.This pump simultaneously pumping two different strata pressures oil reservoir and all can realize oil extraction at up-down stroke, enhance productivity.
The technological scheme of the utility model is: this kind double-action layering oil well pump; Comprise upper connection and lower contact, be connected with sucker rod between said upper connection and the lower contact in turn, go up the outer pump barrel epimere of pump, go up pump barrel pipe nipple in the pump, go up pump barrel pipe nipple box cupling in the pump, go up pump barrel in the pump, seal ring, go up the outer pump barrel box cupling of pump, go up the outer pump barrel stage casing of pump, total draining valve, plunger connector, go up pump plunger, hollow rod, go up in the pump pipe nipple under the pump barrel, go up in the pump pipe nipple box cupling, sealed pipe under the pump barrel, go up the outer pump barrel hypomere of pump, go up pump annular row fuel tap, go up pump annular oiling valve, pipe nipple, box cupling, pump pump barrel, pump plunger, down pump box cupling, down pump traveling valve, pump pipe nipple, outer box cupling and following pump standing valve down down down.Wherein, Last pump plunger lays respectively in the interior pump barrel of pump and in the following pump pump barrel with following pump plunger, and total draining valve is positioned at the upper end of pump plunger, and following pump traveling valve is arranged on down the pump plunger lower end; Last pump plunger is connected through hollow rod with following pump plunger, constitutes plunger piston assembly; By pump barrel pipe nipple in the last pump, go up pump barrel pipe nipple box cupling in the pump, go up pump barrel in the pump, go up in the pump pipe nipple under the pump barrel, go up in the pump under the pump barrel pipe nipple box cupling and be connected successively with sealed pipe and constitute and go up the pump inner core; By the outer pump barrel epimere of last pump, go up the outer pump barrel box cupling of pump, go up the outer pump barrel stage casing of pump, go up the outer pump barrel hypomere of pump and be connected successively and constitute with last pump annular oiling valve and go up the pump urceolus, said go up pump inner core and last pump urceolus and be connected through upper connection after the last pump barrel assembly of formation; Constitute pump barrel assembly down by box cupling, following pump pump barrel, following pump box cupling, following pump pipe nipple, outer box cupling, following pump standing valve with after lower contact is connected successively; The said pump barrel assembly of going up is connected through pipe nipple with following pump barrel assembly.
The utlity model has following beneficial effect: this kind pump is the oil reservoir of pumping two different strata pressures simultaneously, has got rid of single pump and has closed and adopt the deficiencies such as interlayer interference of adopting with the double pump branch.Moreover this pump is in the upstroke process, and last pump is accomplished the discharge opeing process, and following pump is accomplished and drawn the liquid process, and in the down stroke process, last pump is accomplished the liquid process of drawing, and following pump is accomplished the discharge opeing process, realizes double-action, all realizes oil extraction at up-down stroke, enhances productivity.Put it briefly, the utility model can be got rid of interlayer interference, and the fluid of two oil reservoirs of pumping simultaneously has double-action, and up-down stroke is all realized oil extraction, improves to produce and imitates.Advantages such as and compare with the double pump branch mode of taking out, have simple in structurely, rate of fault is low, and pump detection period is long have promotional value.
Description of drawings:
Fig. 1 is the structure sectional view of the utility model.
1-upper connection among the figure, 2-sucker rod, the outer pump barrel epimere of the last pump of 3-, pump barrel pipe nipple box cupling in the pump barrel pipe nipple in the last pump of 4-, the last pump of 5-; Pump barrel in the last pump of 6-, 7-seal ring, the outer pump barrel box cupling of the last pump of 8-, the outer pump barrel stage casing of the last pump of 9-, the total draining valve of 10-; The 11-plunger connector, the last pump plunger of 12-, pipe nipple under the pump barrel in the 13-hollow rod, the last pump of 14-, pipe nipple box cupling under the pump barrel in the last pump of 15-; The 16-sealed pipe, the outer pump barrel hypomere of the last pump of 17-, the last pump annular row of 18-fuel tap, the last pump annular of 19-oiling valve, 20-pipe nipple; The 21-box cupling, pump pump barrel under the 22-, pump plunger under the 23-, pump box cupling under the 24-, pump traveling valve under the 25-; Pump pipe nipple under the 26-, the outer box cupling of 27-, pump standing valve under the 28-, 29-lower contact.
Embodiment:
Below in conjunction with accompanying drawing the utility model is described further:
By shown in Figure 1; This kind double-action layering oil well pump; Comprise upper connection 1 and lower contact 29, its unique distinction is: be connected with sucker rod 2 between said upper connection 1 and the lower contact 29 in turn, go up the outer pump barrel epimere 3 of pump, go up pump barrel pipe nipple 4 in the pump, go up pump barrel pipe nipple box cupling 5 in the pump, go up pump barrel 6 in the pump, seal ring 7, go up the outer pump barrel box cupling 8 of pump, go up the outer pump barrel stage casing 9 of pump, total draining valve 10, plunger connector 11, go up pump plunger 12, hollow rod 13, go up in the pump pipe nipple 14 under the pump barrel, go up in the pump pipe nipple box cupling 15, sealed pipe 16 under the pump barrel, go up the outer pump barrel hypomere 17 of pump, go up pump annular row fuel tap 18, go up pump annular oiling valve 19, pipe nipple 20, box cupling 21, pump pump barrel 22, down pump plunger 23, down pump box cupling 24, pump traveling valve 25, pump pipe nipple 26, outer box cupling 27 and following pump standing valve 28 down down down.
Wherein, Last pump plunger 12 lays respectively in the interior pump barrel 6 of pump and in the following pump pump barrel 22 with following pump plunger 23; Total draining valve 10 is positioned at the upper end of pump plunger 12; Following pump traveling valve 25 is arranged on down pump plunger 23 lower ends, and last pump plunger 12 is connected through hollow rod 13 with following pump plunger 23, constitutes plunger piston assembly.
By pump barrel pipe nipple 4 in the last pump, go up pump barrel pipe nipple box cupling 5 in the pump, go up pump barrel 6 in the pump, go up in the pump pipe nipple 14 under the pump barrel, go up in the pump under the pump barrel pipe nipple box cupling 15 and be connected successively with sealed pipe 16 and constitute and go up the pump inner core; By the outer pump barrel epimere 3 of last pump, go up the outer pump barrel box cupling 8 of pump, go up the outer pump barrel stage casing 9 of pump, go up the outer pump barrel hypomere 17 of pump and be connected successively and constitute with last pump annular oiling valve 19 and go up the pump urceolus, said go up pump inner core and last pump urceolus and be connected through upper connection 1 after the last pump barrel assembly of formation; Constitute pump barrel assembly down by box cupling 21, following pump pump barrel 22, following pump box cupling 24, following pump pipe nipple 26, outer box cupling 27, following pump standing valve 28 with after lower contact 29 is connected successively; The said pump barrel assembly of going up is connected through pipe nipple 20 with following pump barrel assembly.
The working procedure of the said oil well pump of the utility model is:
During upstroke, the working procedure of last pump does, because last pump annular oiling valve 19 cuts out; When following pump plunger 23 is up; Hollow rod 13, down pump pump barrel 22 and last pump outward pump barrel hypomere 17 formed annular space volumes reduce, cavity pressure increases, in cavity pressure is higher than oil pipe during head of liquid; Last pump annular row fuel tap 18 is opened; Fluid is successively through the inside and outside pump barrel annular chamber of last pump, the sieve aperture of going up pump barrel pipe nipple 14 in the pump, the sieve aperture on the hollow rod 13, and total liquid discharging valve 10 of flowing through again drains into ground, pump discharge opeing process in the completion with oil pipe.The working procedure of following pump: following pump traveling valve 25 cuts out under the head of liquid effect in oil pipe; Because following pump plunger 23 is up; The annular space volume of following pump pump barrel 22 and following pump plunger 23 increases, and cavity pressure reduces, when cavity pressure is lower than the oil reservoir strata pressure; Following pump standing valve 28 is opened, and accomplishing down, pump draws the liquid process.
During down stroke; The working procedure of last pump: in oil pipe under the head of liquid effect on pump annular row fuel tap 18 close, when following pump plunger 23 is descending, hollow rod 13, pump pump barrel 22 and the outer pump barrel hypomere 17 formed annular space volumes increases of last pump down; Cavity pressure reduces; When cavity pressure is lower than when going up the oil reservoir strata pressure, the annular oiling valve 19 of last pump is opened, and pump draws the liquid process in the completion.The working procedure of following pump does, because pump standing valve 28 cuts out down, following pump plunger 23 is descending; The annular space volume of following pump pump barrel 22 and following pump plunger 23 reduces; Cavity pressure increases, and during head of liquid, following pump traveling valve 25 is opened in cavity pressure is higher than oil pipe; Fluid drains into ground through hollow rod 13 and total liquid discharging valve 10 through oil pipe, accomplishes pump discharge opeing process down.
During actual the use, oil well pump need with the supporting use of packet.Oil well pump is connected packet top, utilizes the interlayer position of packet between two oil reservoirs to carry out packing.After the completion, pump can pass through packet center tube pumping lower floor fluid under the oil well pump, the upper strata fluid of pump pumping packet upper end on the oil well pump, thus realize that the non-interfering branch of two-layer fluid takes out with adopting.

Claims (1)

1. double-action layering oil well pump; Comprise upper connection (1) and lower contact (29), it is characterized in that: be connected with sucker rod (2) between said upper connection (1) and the lower contact (29) in turn, go up the outer pump barrel epimere (3) of pump, go up pump barrel pipe nipple (4) in the pump, go up pump barrel pipe nipple box cupling (5) in the pump, go up pump barrel (6) in the pump, seal ring (7), go up the outer pump barrel box cupling (8) of pump, go up the outer pump barrel stage casing (9) of pump, total draining valve (10), plunger connector (11), go up pump plunger (12), hollow rod (13), go up in the pump pipe nipple (14) under the pump barrel, go up in the pump pipe nipple box cupling (15), sealed pipe (16) under the pump barrel, go up the outer pump barrel hypomere (17) of pump, go up pump annular row fuel tap (18), go up pump annular oiling valve (19), pipe nipple (20), box cupling (21), pump pump barrel (22), pump plunger (23), down pump box cupling (24), down pump traveling valve (25), pump pipe nipple (26), outer box cupling (27) and following pump standing valve (28) down down down;
Wherein, Last pump plunger (12) and following pump plunger (23) lay respectively in the interior pump barrel (6) of pump and in the following pump pump barrel (22); Total draining valve (10) is positioned at the upper end of pump plunger (12); Following pump traveling valve (25) is arranged on down pump plunger (23) lower end, and last pump plunger (12) is connected through hollow rod (13) with following pump plunger (23), constitutes plunger piston assembly;
By pump barrel pipe nipple (4) in the last pump, go up pump barrel pipe nipple box cupling (5) in the pump, go up pump barrel (6) in the pump, go up in the pump pipe nipple (14) under the pump barrel, go up in the pump under the pump barrel pipe nipple box cupling (15) and be connected successively with sealed pipe (16) and constitute upward pump inner core; By the outer pump barrel epimere (3) of last pump, go up the outer pump barrel box cupling (8) of pump, go up the outer pump barrel stage casing (9) of pump, go up the outer pump barrel hypomere (17) of pump and be connected successively with last pump annular oiling valve (19) and constitute and go up the pump urceolus, said go up pump inner core and last pump urceolus and be connected through upper connection (1) after the last pump barrel assembly of formation;
Be connected pump barrel assembly under the formation of back successively by box cupling (21), following pump pump barrel (22), following pump box cupling (24), following pump pipe nipple (26), outer box cupling (27), following pump standing valve (28) and lower contact (29);
The said pump barrel assembly of going up is connected through pipe nipple (20) with following pump barrel assembly.
CN2012201770378U 2012-04-24 2012-04-24 Double-acting layering oil well pump Expired - Fee Related CN202560526U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012201770378U CN202560526U (en) 2012-04-24 2012-04-24 Double-acting layering oil well pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012201770378U CN202560526U (en) 2012-04-24 2012-04-24 Double-acting layering oil well pump

Publications (1)

Publication Number Publication Date
CN202560526U true CN202560526U (en) 2012-11-28

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103883503A (en) * 2014-04-15 2014-06-25 西安石油大学 Small-displacement rod type oil well pump with annular plunger
CN106089664A (en) * 2016-08-16 2016-11-09 长葛市福侨机电有限公司 Efficiently divide and adopt double acting sucker rod pump
CN109611321A (en) * 2018-11-09 2019-04-12 大港油田集团有限责任公司 A kind of bilayer gas-tight separate extracting pump
CN112196779A (en) * 2020-09-11 2021-01-08 刘梁婧 Double-acting oil well pump
CN113915111A (en) * 2021-12-09 2022-01-11 东营市汇诚石油工程技术有限责任公司 Variable-displacement oil well pump

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103883503A (en) * 2014-04-15 2014-06-25 西安石油大学 Small-displacement rod type oil well pump with annular plunger
CN103883503B (en) * 2014-04-15 2015-11-11 西安石油大学 A kind of annular plunger small displacement rod-type pumping unit
CN106089664A (en) * 2016-08-16 2016-11-09 长葛市福侨机电有限公司 Efficiently divide and adopt double acting sucker rod pump
CN106089664B (en) * 2016-08-16 2018-01-02 河南福侨石油装备有限公司 Efficiently divide and adopt double acting sucker rod pump
CN109611321A (en) * 2018-11-09 2019-04-12 大港油田集团有限责任公司 A kind of bilayer gas-tight separate extracting pump
CN112196779A (en) * 2020-09-11 2021-01-08 刘梁婧 Double-acting oil well pump
CN113915111A (en) * 2021-12-09 2022-01-11 东营市汇诚石油工程技术有限责任公司 Variable-displacement oil well pump

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Legal Events

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121128

Termination date: 20140424