CN202545203U - Downhole hydraulic oil well pump - Google Patents

Downhole hydraulic oil well pump Download PDF

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Publication number
CN202545203U
CN202545203U CN201220171144XU CN201220171144U CN202545203U CN 202545203 U CN202545203 U CN 202545203U CN 201220171144X U CN201220171144X U CN 201220171144XU CN 201220171144 U CN201220171144 U CN 201220171144U CN 202545203 U CN202545203 U CN 202545203U
Authority
CN
China
Prior art keywords
oil well
cylinder
well pump
hydraulic
oil
Prior art date
Application number
CN201220171144XU
Other languages
Chinese (zh)
Inventor
朱昶昊
李玲
刘华法
徐宏兵
杨士超
文凤余
苏敬宝
杨晓文
范福平
陈洪维
彭松水
杨怀治
李增银
Original Assignee
山东金鹏石化设备有限公司
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 山东金鹏石化设备有限公司 filed Critical 山东金鹏石化设备有限公司
Priority to CN201220171144XU priority Critical patent/CN202545203U/en
Application granted granted Critical
Publication of CN202545203U publication Critical patent/CN202545203U/en

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Abstract

The utility model relates to a downhole hydraulic oil well pump and belongs to the field of mechanical equipment for oil extraction. The downhole hydraulic oil well pump comprises an oil well pump. The downhole hydraulic oil well pump is characterized in that the bottom of the oil well pump is provided with a hydraulic cylinder, wherein the hydraulic cylinder comprises a cylinder body, a piston rod and a piston; the piston is arranged in the cylinder body; the cylinder body is divided into two hydraulic cavities; one end of the piston rod penetrates through the cylinder body and is connected with the piston, and the other end of the piston rod is connected with an oil well pump plunger rod of the oil well pump; and the cylinder body is fixedly arranged on the shell of the oil well pump. Because the hydraulic cylinder is directly arranged at the bottom of the oil well pump, the mode that the original ground walking beam pumping unit drives a sucker rod to drive the oil well pump plunger rod to work is canceled, the phenomenon that a sucker rod and an oil pipe are worn in a well barrel is avoided, the downhole hydraulic oil well pump is simple in structure and stable in operation, and the occupied area is reduced; and because the hydraulic oil pump and a solenoid directional valve are directly arranged in the well barrel, the service life of the hydraulic oil pump and the service life of the solenoid directional valve are effectively prolonged.

Description

The underground hydraulic pressure oil well pump

Technical field

The utility model relates to a kind of underground hydraulic pressure oil well pump, belongs to the machinery field of recover petroleum.

Background technique

At present, the oil rig under the oil well mainly is made up of downhole pump and ground beam pumping unit, and the ground beam pumping unit connects with the oil pump plunger piston bar of downhole pump through sucker rod.During work, drive sucker rod through the ground beam pumping unit and drive the to-and-fro motion in oil well pump of oil pump plunger piston bar, the liquid of last km downhole oil layer output is given rise to ground.When this oil pumping mode is used in vertical pit shaft; Eccentric wear phenomenon between sucker rod and the oil pipe is also not too obvious, if in inclined shaft, use, the angle that tilts because of well wellbore is bigger; Serious eccentric wear phenomenon can take place with oil pipe in the sucker rod of last km to several kms in pit shaft; Make R a T produce heavy wear in the part, often repair and replacement, influence are recovered the oil and are produced.

The model utility content

According to above deficiency of the prior art, the technical problem that the utility model will solve is: a kind of underground hydraulic pressure oil well pump is provided, and it is simple in structure, has avoided the oil pipe wearing and tearing effectively.

The described underground hydraulic pressure oil well pump of the utility model comprises oil well pump, it is characterized in that: the oil well pump bottom is provided with oil hydraulic cylinder; Oil hydraulic cylinder comprises cylinder body, piston rod and piston; Piston is located in the cylinder body, and cylinder body is divided into two hydraulic pressure cavity, and piston rod one end passes cylinder body and connects with piston; The other end connects with the oil pump plunger piston bar of oil well pump, and cylinder body is fixed on the housing of oil well pump.

Wherein, Said cylinder base is provided with cylindrical shell; Barrel is equipped with hydraulic-pressure pump and solenoid directional control valve; The cylindrical shell bottom is provided with hydraulic oil container, and solenoid directional control valve is communicated with two hydraulic pressure cavity, hydraulic oil container and the hydraulic-pressure pump oil outlet of cylinder body respectively through pipeline, and the hydraulic-pressure pump filler opening is communicated with hydraulic oil container through pipeline.

During use, the oil outlet on the oil well pump is connected with pipeline road, connect power supply line to hydraulic-pressure pump; Connect control wiring to solenoid directional control valve; Then the utility model is placed in the oil well, the primer fluid oil-pressing pump is under the effect of respective line and solenoid directional control valve; Constitute a hydraulic oil periodic duty system between two hydraulic pressure cavity of cylinder body and the hydraulic oil container; It is reciprocating in cylinder body to make piston promote piston rod, and piston rod drives the oil pump plunger piston bar and in oil well pump, starts working, thereby reaches the purpose of oil pumping.

Compared with prior art, the utlity model has following beneficial effect:

The utility model is owing to directly be provided with oil hydraulic cylinder in the oil well pump bottom; Cancel original ground beam pumping unit and drive the mode that sucker rod drives the work of oil pump plunger piston bar; Avoided because the wear phenomenon that sucker rod takes place with oil pipe in pit shaft; It is simple in structure, operates steadily, and has reduced floor space; Owing to hydraulic-pressure pump and solenoid directional control valve are directly installed in the cylindrical shell, so prolonged the working life of hydraulic-pressure pump and solenoid directional control valve effectively.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Among the figure: 1, oil well pump 2, oil pump plunger piston bar 3, cylinder body 4, piston rod 5, piston 6, solenoid directional control valve 7, hydraulic-pressure pump 8, hydraulic oil container 9, cylindrical shell.

Embodiment

Below in conjunction with accompanying drawing the utility model is done and to be further described:

As shown in Figure 1, the underground hydraulic pressure oil well pump comprises oil well pump 1; Oil well pump 1 bottom is provided with oil hydraulic cylinder, and oil hydraulic cylinder comprises cylinder body 3, piston rod 4 and piston 5, and piston 5 is located in the cylinder body 3; Cylinder body 3 is divided into two hydraulic pressure cavity, and piston rod 4 one ends pass cylinder body 3 and connect with piston 5, and the other end connects with the oil pump plunger piston bar 2 of oil well pump 1; Cylinder body 3 is fixed on the housing of oil well pump 1; Cylinder body 3 bottoms are provided with cylindrical shell 9, and cylindrical shell 9 inside are equipped with hydraulic-pressure pump 7 and solenoid directional control valve 6, and cylindrical shell 9 bottoms are provided with hydraulic oil container 8; Solenoid directional control valve 6 is communicated with cylinder body 3 interior two hydraulic pressure cavity, hydraulic oil container 8 and hydraulic-pressure pump 7 oil outlets respectively through pipeline, and hydraulic-pressure pump 7 filler openings are communicated with hydraulic oil container 8 through pipeline.

During use, the oil outlet on the oil well pump 1 is connected with pipeline road, connect power supply line for hydraulic-pressure pump 7; Connect control wiring for solenoid directional control valve 6; Then the utility model is placed in the oil well, primer fluid oil-pressing pump 7 is under the effect of respective line and solenoid directional control valve 6; Constitute a hydraulic oil periodic duty system between two hydraulic pressure cavity of cylinder body 3 and the hydraulic oil container 8; It is reciprocating in cylinder body 3 to make piston 5 promote piston rod 4, and piston rod 4 drives oil pump plunger piston bar 2 and in oil well pump 1, starts working, thereby reaches the purpose of oil pumping.

Claims (2)

1. a underground hydraulic pressure oil well pump comprises oil well pump (1), it is characterized in that: oil well pump (1) bottom is provided with oil hydraulic cylinder; Oil hydraulic cylinder comprises cylinder body (3), piston rod (4) and piston (5); Piston (5) is located in the cylinder body (3), and cylinder body (3) is divided into two hydraulic pressure cavity, and piston rod (4) one ends pass cylinder body (3) and connect with piston (5); The other end connects with the oil pump plunger piston bar (2) of oil well pump (1), and cylinder body (3) is fixed on the housing of oil well pump (1).
2. underground hydraulic pressure oil well pump according to claim 1; It is characterized in that: said cylinder body (3) bottom is provided with cylindrical shell (9); Cylindrical shell (9) inside is equipped with hydraulic-pressure pump (7) and solenoid directional control valve (6); Cylindrical shell (9) bottom is provided with hydraulic oil container (8), and solenoid directional control valve (6) is communicated with interior two hydraulic pressure cavity, hydraulic oil container (8) and hydraulic-pressure pump (7) oil outlet of cylinder body (3) respectively through pipeline, and hydraulic-pressure pump (7) filler opening is communicated with hydraulic oil container (8) through pipeline.
CN201220171144XU 2012-04-20 2012-04-20 Downhole hydraulic oil well pump CN202545203U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201220171144XU CN202545203U (en) 2012-04-20 2012-04-20 Downhole hydraulic oil well pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201220171144XU CN202545203U (en) 2012-04-20 2012-04-20 Downhole hydraulic oil well pump

Publications (1)

Publication Number Publication Date
CN202545203U true CN202545203U (en) 2012-11-21

Family

ID=47165846

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201220171144XU CN202545203U (en) 2012-04-20 2012-04-20 Downhole hydraulic oil well pump

Country Status (1)

Country Link
CN (1) CN202545203U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103498786A (en) * 2013-10-21 2014-01-08 重庆科技学院 Oil production pump
CN104747139A (en) * 2015-03-31 2015-07-01 王翀 Hydraulic driven type oil extraction system
CN104806495A (en) * 2015-05-12 2015-07-29 天津市仕杰达能源技术开发有限公司 Plunger-type hydraulic electric submersible pump
CN105332901A (en) * 2014-08-10 2016-02-17 满灵子 Well electric hydraulic conversion high-lift plunger pump
CN105673465A (en) * 2016-02-18 2016-06-15 中国科学院力学研究所 Water-based double-hydraulic drive discharge and mining system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103498786A (en) * 2013-10-21 2014-01-08 重庆科技学院 Oil production pump
CN105332901A (en) * 2014-08-10 2016-02-17 满灵子 Well electric hydraulic conversion high-lift plunger pump
CN104747139A (en) * 2015-03-31 2015-07-01 王翀 Hydraulic driven type oil extraction system
CN104806495A (en) * 2015-05-12 2015-07-29 天津市仕杰达能源技术开发有限公司 Plunger-type hydraulic electric submersible pump
CN105673465A (en) * 2016-02-18 2016-06-15 中国科学院力学研究所 Water-based double-hydraulic drive discharge and mining system

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

Granted publication date: 20121121

Termination date: 20190420

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