CN202597036U - Separate-extraction separate-discharge oil well pump - Google Patents

Separate-extraction separate-discharge oil well pump Download PDF

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Publication number
CN202597036U
CN202597036U CN 201220198352 CN201220198352U CN202597036U CN 202597036 U CN202597036 U CN 202597036U CN 201220198352 CN201220198352 CN 201220198352 CN 201220198352 U CN201220198352 U CN 201220198352U CN 202597036 U CN202597036 U CN 202597036U
Authority
CN
China
Prior art keywords
barrel
pump
oil
separate
valve
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
CN 201220198352
Other languages
Chinese (zh)
Inventor
赵晓伟
吕亿明
牛彩云
王百
李大建
朱洪征
韩二涛
樊旭勇
李楼楼
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.)
China Petroleum and Natural Gas Co Ltd
Original Assignee
China Petroleum and Natural Gas Co Ltd
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 China Petroleum and Natural Gas Co Ltd filed Critical China Petroleum and Natural Gas Co Ltd
Priority to CN 201220198352 priority Critical patent/CN202597036U/en
Application granted granted Critical
Publication of CN202597036U publication Critical patent/CN202597036U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a separate-extraction separate-discharge oil well pump which is designed for a multilayer extraction oil producing well with serious interlayer interference and seriously incompatible interlayer fluid in the casing pipe well completion way. The top end of an upper plunger barrel with a traveling valve ball inside is connected with a hollow oil pumping rod, and the lower end is in contact with a lower plunger barrel. The upper plunger barrel and the lower plunger barrel are arranged in a pump barrel, a plunger barrel spacing pin is arranged in the pump barrel, openings of the barrel wall of the pump barrel are respectively communicated with a side wall circulation channel with a side suction valve inside and a bypass water channel with a bypass valve inside, a fixed valve and a channel are arranged at the bottom of the pump barrel. When the separate-extraction separate-delivery oil well pump makes upper and lower stroke, by controlling the opening and the closing of the side suction valve and the fixed valve, layered oil flows enter an empty cavity inside the pump body from respective channels and are respectively discharged into an oil tube and the hollow oil pumping rod through the bypass water channel and a piston barrel, the oil layers are relatively independent and do not interfere with each other, the upper plunger barrel and the lower plunger barrel are mutually separated, oil flow channels are relatively independent, the phenomena of interlayer interference and incompatible fluid can be effectively eliminated, the liquid inlet ratio between upper and lower layers can be changed by adjusting the stroke.

Description

Divide to adopt and tell oil well pump
Technical field
The utility model relates to a kind of branch to be adopted and tells oil well pump, belongs to the oil development technical field.
Background technique
At present; In the rod pumping system at home, for avoiding interlayer interference, mainly research and development is multiple oil production by layer instrument; Like eccentrically arranged valve formula separate extracting pump, gas-tight formula separate extracting pump, independent liquid in-out separate extracting pump and sliding valve style separate extracting pump etc., and formed a series of minute excavating technology tubing string.These branches are adopted instrument and are combined by Equant oil pump neither basically, connect with pull bar between upper and lower plunger, and upper and lower plunger stroke is consistent, can't control upper and lower layer feed liquor ratio through regulating stroke.
Summary of the invention
The purpose of the utility model is to provide a kind of branch to adopt and tells oil well pump, and it is applicable to interlayer serious interference and the serious incompatible multiple-zone production oil recovery well of inter-layer fluid under the cased hole completion mode.
The concrete technological scheme of the utility model is following:
In establish the valve ball that moves about upper plug tube top connect hollow rod, lower end and lower plunger socket joint touch.Upper plug tube and lower plunger tube are located in the pump barrel; The pump barrel middle part is provided with the plunger tube position limit pin; The sidewall flow channels of establishing the side draught valve in pump barrel barrel intermediate openings is communicated with is established the bypass water channel of bypass valve in the open communication of pump barrel barrel upper and lower part, pump barrel is established standing valve and passage in the bottom.
When the utility model branch is adopted and told oil well pump and do upper and lower stroke, rely on the switch control of side draught valve and standing valve, layering oil stream is from passage turnover pump housing inner cavity separately; And enter oil pipe and hollow rod respectively through bypass water channel and piston cylinder, and relatively independent between oil reservoir, do not disturb mutually; Upper and lower plunger tube is disconnected from each other; Oil flow channel is separate, can effectively eliminate interlayer interference and the fluid phenomenon that is incompatible, and can change the feed liquor ratio of upper and lower layers through regulating stroke.
Description of drawings
Accompanying drawing is told the oil well pump structural representation for dividing to adopt.
Embodiment
Embodiment to the utility model further specifies with reference to accompanying drawing:
Embodiment:
In establish the valve ball 5 that moves about upper plug tube 2 tops connect hollow rod 1, the lower end contacts with lower plunger tube 8.Upper plug tube 2 is located in the pump barrel 3 with lower plunger tube 8; Pump barrel 3 middle parts are provided with plunger tube position limit pin 12; The sidewall flow channels 6 that pump barrel 3 barrel intermediate openings are established side draught valve 7 in being communicated with; Establish the bypass water channel 4 of bypass valve 9 in the pump barrel 3 barrel upper and lower part open communication, establish standing valve 10 and passage 11 in pump barrel 3 bottoms.
The working principle of the utility model is following:
In upstroke, upper plug tube 2 is up with lower plunger tube 8, and side draught valve 7 cuts out, and standing valve 10 is opened, and pump barrel 3 internal pressures are lower than pump intake pressure, and lower floor's fluid gets into from standing valve 10, gets into cavity between lower plunger tube 8 and the pump barrel 3 through passage 11.Behind upper plug tube 2 and the lower plunger tube 8 up certain distances; Lower plunger tube 8 touches with position limit pin 12; Stop uply, upper plug tube 2 separates with lower plunger tube 8 and continues uply, and top fluid gets into cavity between pump barrels 3 and 8 of lower plungers, the upper plug 2 through side draught valve 7.
During down stroke, upper plug tube 2 is descending, and side draught valve 7 cuts out, and top fluid gets into hollow rod 1 through the traveling valve in the upper plug 25.Upper plug tube 2 behind the migration certain distances, contact with lower plunger tube 8 downwards, and promotes lower plunger tube 8 and move down, and standing valve 10 cuts out, and lower floor's fluid is through bypass valve 9 and bypass water channel 4 entering oil pipes.So repeatedly, accomplish pumping discharge opeing process.

Claims (1)

1. a branch is adopted and is told oil well pump, it is characterized in that:
In establish the valve ball that moves about (5) upper plug tube (2) top connect hollow rod (1), the lower end contacts with lower plunger tube (8); Upper plug tube (2) and lower plunger tube (8) are located in the pump barrel (3); Pump barrel (3) middle part is provided with plunger tube position limit pin (12); The sidewall flow channels (6) that pump barrel (3) barrel intermediate openings is established side draught valve (7) in being communicated with; Establish the bypass water channel (4) of bypass valve (9) in the open communication of pump barrel (3) barrel upper and lower part, pump barrel (3) is established standing valve (10) and passage (11) in the bottom.
CN 201220198352 2012-05-04 2012-05-04 Separate-extraction separate-discharge oil well pump Expired - Fee Related CN202597036U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220198352 CN202597036U (en) 2012-05-04 2012-05-04 Separate-extraction separate-discharge oil well pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220198352 CN202597036U (en) 2012-05-04 2012-05-04 Separate-extraction separate-discharge oil well pump

Publications (1)

Publication Number Publication Date
CN202597036U true CN202597036U (en) 2012-12-12

Family

ID=47314583

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220198352 Expired - Fee Related CN202597036U (en) 2012-05-04 2012-05-04 Separate-extraction separate-discharge oil well pump

Country Status (1)

Country Link
CN (1) CN202597036U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103015958A (en) * 2012-07-23 2013-04-03 常州大学 Underground spiral gas-liquid separation and reinjection device as well as reinjection method
CN103850668A (en) * 2014-01-23 2014-06-11 成都北方石油勘探开发技术有限公司 Oil extraction device capable of collecting and outputting in layers
CN111042982A (en) * 2018-10-12 2020-04-21 中国石油化工股份有限公司 Piston type reciprocating device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103015958A (en) * 2012-07-23 2013-04-03 常州大学 Underground spiral gas-liquid separation and reinjection device as well as reinjection method
CN103015958B (en) * 2012-07-23 2015-08-05 常州大学 Underground Spiral gas-liquid separation re-injection device and re-injection method
CN103850668A (en) * 2014-01-23 2014-06-11 成都北方石油勘探开发技术有限公司 Oil extraction device capable of collecting and outputting in layers
CN111042982A (en) * 2018-10-12 2020-04-21 中国石油化工股份有限公司 Piston type reciprocating device
CN111042982B (en) * 2018-10-12 2021-09-14 中国石油化工股份有限公司 Piston type reciprocating device

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Legal Events

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

Granted publication date: 20121212

Termination date: 20210504

CF01 Termination of patent right due to non-payment of annual fee