CN202468243U - Rotary-plunger scale-prevention oil-well pump - Google Patents

Rotary-plunger scale-prevention oil-well pump Download PDF

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Publication number
CN202468243U
CN202468243U CN2012200769104U CN201220076910U CN202468243U CN 202468243 U CN202468243 U CN 202468243U CN 2012200769104 U CN2012200769104 U CN 2012200769104U CN 201220076910 U CN201220076910 U CN 201220076910U CN 202468243 U CN202468243 U CN 202468243U
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CN
China
Prior art keywords
plunger
rotor
rotator
pump cylinder
pump
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.)
Active
Application number
CN2012200769104U
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Chinese (zh)
Inventor
吴法祥
李洪坤
张桂林
范新伟
孙喆
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.)
SHANDONG SHOUGUANG KUNLONG PETROLEUM MACHINERY CO Ltd
Original Assignee
SHANDONG SHOUGUANG KUNLONG PETROLEUM MACHINERY CO Ltd
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Application filed by SHANDONG SHOUGUANG KUNLONG PETROLEUM MACHINERY CO Ltd filed Critical SHANDONG SHOUGUANG KUNLONG PETROLEUM MACHINERY CO Ltd
Priority to CN2012200769104U priority Critical patent/CN202468243U/en
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Publication of CN202468243U publication Critical patent/CN202468243U/en
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Abstract

The utility model discloses a rotary-plunger scale-prevention oil-well pump. A pump cylinder, a scale-prevention connecting pipe and a standing valve are connected in sequence from top to bottom; a rotary joint, an upper rotator, a plunger, an upper traveling valve, a middle rotator, a lower plunger, a lower travelling valve and a lower rotator are connected in sequence from top to bottom; the plunger and the pump cylinder are sealed in the manner of matching; the lower plunger is located in the pump cylinder and the scale-prevention connecting pipe; the lower plunger and the pump cylinder are sealed in the manner of matching; the exterior of the upper rotator is communicated with the interior of the plunger; the interior of the plunger is communicated with the exterior of the middle rotator; the exterior of the middle rotator is communicated with the interior of the lower plunger; and the interior of the lower plunger is communicated with the exterior of the lower rotator. The whole section of the plunger and the whole section of the pump cylinder do a relative motion all along, and thus, the surface of the plunger and the surface of the pump cylinder cannot be scaled. As the plunger is provided with the rotators from top to bottom, the rotators rotate under the impact of liquid flow when the plunger moves down, and thus, the part of the plunger, which is contacted with the pump cylinder, can be changed, the eccentric wear between the pump cylinder and the plunger can be eliminated, and production can be performed in scaled wells and deviated wells. The rotary-plunger scale-prevention oil-well pump is long in service life, is capable of prolonging the production cycle of the oil well and is obvious in economic benefit.

Description

The rotary plunger anti-scaling oil-well pump
Technical field
The utility model is the equipment that oil field pumping well is used, and is a kind of oil well pump, particularly a kind of rotary plunger anti-scaling oil-well pump.
Background technique
Because the moisture height of pumping well that has; Salinity is high; The oil well fouling is serious, and common oil well pump pump barrel two ends in process of production all has part not contact and fouling with plunger, and existing long-plunger short pump barrel oil well pump also is that the plunger two ends all have part not contact and fouling with pump barrel in process of production; Cause and to bump pump, holddown, have a strong impact on oil well production.It is inclined shafts that a lot of oil wells are arranged at present, and only some contact between pump barrel and the plunger, and the area of participating in wearing and tearing is few, is easy to generate eccentric wear, makes the working life of oil well pump short, oil well production cycle weak point, deficiency in economic performance.
Summary of the invention
The purpose of the utility model is a kind of rotary plunger anti-scaling oil-well pump of design, makes oil well pump non-scaling in process of production, and eccentric wear in the working life of prolongation oil well pump, does not increase the oil well production cycle.
The purpose of the utility model is achieved in that and comprises pump barrel, swivel joint, last rotor, plunger, upper travelling valve, middle rotor, lower plunger, antiscale connecting tube, lower travelling valve, following rotor, standing valve; Pump barrel, antiscale connecting tube, standing valve connect from top to bottom successively; Swivel joint, upward rotor, plunger, upper travelling valve, middle rotor, lower plunger, lower travelling valve, rotor connection successively from top to bottom down; Plunger and pump barrel fitted seal, lower plunger are in pump barrel and the antiscale connecting tube, lower plunger and pump barrel fitted seal; Outside and the inner UNICOM of plunger of last rotor; The outside UNICOM of the inner and middle rotor of plunger, the outside and inner UNICOM of lower plunger of middle rotor, the outside UNICOM of the inner and following rotor of lower plunger.
The beneficial effect of the utility model is: the antiscale connecting tube is arranged under the pump barrel, and full section of plunger and the full section of pump barrel have relative movement all the time, plunger, pump barrel surface non flouling behaviour; Plunger has been installed rotor up and down, and liquid flow impact makes it produce rotation when descending, can change the contact position of plunger and pump barrel; Can eliminate the eccentric wear between pump barrel and plunger, therefore, the utility model can be produced in fouling well, inclined shaft; Long service life can prolong the oil well production cycle, has remarkable economic efficiency.
Description of drawings
Fig. 1 is the utility model example structure figure.
Embodiment
Below in conjunction with Fig. 1 the embodiment of the utility model is described.
Can know by figure; The embodiment of the utility model comprises pump barrel 1, swivel joint 2, last rotor 3, plunger 4, upper travelling valve 5, middle rotor 6, lower plunger 7, antiscale connecting tube 8, lower travelling valve 9, following rotor 10, standing valve 11; Pump barrel 1, antiscale connecting tube 8, standing valve 11 connect from top to bottom successively, swivel joint 2, upward rotor 3, plunger 4, upper travelling valve 5, middle rotor 6, lower plunger 7, lower travelling valve 9, rotor 10 connection successively from top to bottom down, plunger 4 and pump barrel 1 fitted seal; Lower plunger 7 is in pump barrel 1 and the antiscale connecting tube 8; Lower plunger 7 and pump barrel 1 fitted seal, last rotor 3 outside with plunger 4 inner UNICOMs, the inner and middle rotor of plunger 46 outside UNICOMs; In rotor 6 outside with lower plunger 7 inner UNICOMs, the inner and following rotor of lower plunger 7 10 outside UNICOMs.
Swivel joint 2 tops are connected with sucker rod, and pump barrel 1 top connects oil pipe.During upstroke, swivel joint 2, go up rotor 3, plunger 4, upper travelling valve 5, middle rotor 6, lower plunger 7, lower travelling valve 9, rotor 10 is up with sucker rod down, upper travelling valve 5, lower travelling valve 9 are closed, standing valve 11 is opened, fluid gets in the pump barrel 1.During down stroke; Standing valve 11 cuts out; Upper travelling valve 5, lower travelling valve 9 are opened; Through lower travelling valve 9, lower plunger 7 flow to outside the rotor 6, therefrom rotor 6 outflows to upper travelling valve 5, plunger 4, last rotor 3 fluid again, outside last rotor 3, flow to ground through sucker rod and oil pipe annular space again from following rotor 10.During down stroke, fluid need pass in and out three rotors, thereby each parts under the swivel joint 2 are together rotated, and reaches the purpose that prevents eccentric wear.

Claims (1)

1. rotary plunger anti-scaling oil-well pump; Comprise pump barrel (1), swivel joint (2), last rotor (3), plunger (4), upper travelling valve (5), middle rotor (6), lower plunger (7), antiscale connecting tube (8), lower travelling valve (9), following rotor (10), standing valve (11); It is characterized in that: pump barrel (1), antiscale connecting tube (8), standing valve (11) connect from top to bottom successively; Swivel joint (2), upward rotor (3), plunger (4), upper travelling valve (5), middle rotor (6), lower plunger (7), lower travelling valve (9), rotor (10) connection successively from top to bottom down; Plunger (4) and pump barrel (1) fitted seal, lower plunger (7) is in pump barrel (1) and the antiscale connecting tube (8), lower plunger (7) and pump barrel (1) fitted seal; Outside and the inner UNICOM of plunger (4) of last rotor (3); Inner and the outside UNICOM of middle rotor (6) of plunger (4), the outside and inner UNICOM of lower plunger (7) of middle rotor (6), lower plunger (7) inside and the outside UNICOM of following rotor (10).
CN2012200769104U 2012-02-22 2012-02-22 Rotary-plunger scale-prevention oil-well pump Active CN202468243U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012200769104U CN202468243U (en) 2012-02-22 2012-02-22 Rotary-plunger scale-prevention oil-well pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012200769104U CN202468243U (en) 2012-02-22 2012-02-22 Rotary-plunger scale-prevention oil-well pump

Publications (1)

Publication Number Publication Date
CN202468243U true CN202468243U (en) 2012-10-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012200769104U Active CN202468243U (en) 2012-02-22 2012-02-22 Rotary-plunger scale-prevention oil-well pump

Country Status (1)

Country Link
CN (1) CN202468243U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103452834A (en) * 2013-09-18 2013-12-18 中国石油化工股份有限公司 Mechanical forced-twisting plunger rotator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103452834A (en) * 2013-09-18 2013-12-18 中国石油化工股份有限公司 Mechanical forced-twisting plunger rotator
CN103452834B (en) * 2013-09-18 2015-09-16 中国石油化工股份有限公司 Formula plunger rotor turned round by force by a kind of machinery

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