CN103244395A - Tertiary-recovery oil well pump - Google Patents
Tertiary-recovery oil well pump Download PDFInfo
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- CN103244395A CN103244395A CN2012100276154A CN201210027615A CN103244395A CN 103244395 A CN103244395 A CN 103244395A CN 2012100276154 A CN2012100276154 A CN 2012100276154A CN 201210027615 A CN201210027615 A CN 201210027615A CN 103244395 A CN103244395 A CN 103244395A
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- plunger
- pump
- pump barrel
- box cupling
- oil well
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Abstract
The invention relates to a tertiary-recovery oil well pump to overcome defects that normal operations of oil well pumps are affected by sand blocking and the like caused by large oil inlet resistance, proneness to eccentric wear and sedimentation of sand in oil of prior immersive oil well pumps. The tertiary-recovery oil well pump comprises a pump cylinder assembly and a plunger assembly. An upper plunger (7) and an oil outlet valve (10) of the plunger assembly are arranged above a rotary device (21), and a lower plunger (19) and an oil inlet valve (17) are disposed below the rotary device (21); the diameter of the upper plunger (7) is smaller than that of the lower plunger (19); a coupling (6) is fixed at the upper end of a pump cylinder (8) of the pump cylinder assembly (11), and an upper pump cylinder (5) is fixed in an inner hole of the coupling (6); and the upper plunger (7) of the plunger assembly (12) is matched with the upper pump cylinder (5), and the lower plunger (19) is matched with the pump cylinder (8). The tertiary-recovery oil well pump has the advantages of being reasonable and simple in structure, convenient to manufacture and capable of retarding eccentric wear, reducing energy consumption of a motor and improving the pump efficiency.
Description
Technical field
The present invention relates to a kind of oil recovery and produce special-purpose oil well pump, especially relate to a kind of tertiary oil recovery oil well pump.
Background technique
When oil field development enters later stage and polymer and ternary composite driving oil tech the applying of oil field, great changes have taken place well fluidity matter, and underground working becomes more complicated: well liquid thickness causes the descending difficult eccentric wear serious problems of sucker rod; The well corrosion is strong, formation sand production seriously causes pump barrel, plunger abrasion, seriously corroded, problems such as pump valve component wear, valve bonnet fracture, puncture.These problems have shortened the service life of oil well pump greatly, and pump detection period shortens, and increase the work operations amount, and rate when reducing the production of oil well has had a strong impact on crude oil production, economic benefit.
Disclosed Chinese utility model patent on April 20th, 2005 " deep-well immersion oil well pump " (publication number CN2693947); constituted by pump barrel assembly and plunger piston assembly; fuel inlet fitting is equipped with at the pump barrel middle part of pump barrel assembly; fuel inlet fitting has a plurality of filler openings; fuel inlet fitting is separated into pump barrel and following pump barrel with pump barrel; outside last pump barrel, install casing additional; the plunger of plunger piston assembly is selected long-plunger for use; this oil well pump oil inlet passage area is big; be easy to thickened oil recovery; fuel inlet fitting is linked up pump barrel and oil jacket annular space down, but gas-tight, and plunger exposes outside pump barrel; can prevent sand card phenomenon; connect oil pipe under the pump and make the sand setting tail pipe, casing and extension nipple can be protected; following pump barrel is of value to heavy duty service.But the sand in big, the easy eccentric wear of this oil well pump oil-feed resistance, the fluid easily deposition causes the sand card, influences the proper functioning of oil well pump.
Summary of the invention
For big, the easy eccentric wear of oil-feed resistance that overcomes existing immersion oil well pump existence, the easy deposition of sand in the fluid cause the sand card, influence the deficiencies such as proper functioning of oil well pump, the invention provides a kind of tertiary oil recovery oil well pump.
The technical solution adopted for the present invention to solve the technical problems is: the tertiary oil recovery oil well pump comprises pump barrel assembly, plunger piston assembly, and the pump barrel upper end of pump barrel assembly is installed with box cupling, and plunger piston assembly comprises upper plug, outlet valve, lower plunger, oiling valve; Plunger piston assembly is positioned at the pump barrel assembly and pumps.The upper plug of plunger piston assembly, outlet valve are positioned at the top of whirligig, and lower plunger, oiling valve are positioned at the below of whirligig; The diameter of upper plug is less than the diameter of lower plunger.The pump barrel upper end of pump barrel assembly is installed with box cupling, and the box cupling endoporus is installed with pump barrel; The upper plug of plunger piston assembly cooperates with last pump barrel, and lower plunger cooperates with pump barrel.Whirligig comprises trombone slide box cupling and pipe close; Fixedly connected with delivery connection in the upper end of trombone slide box cupling, trombone slide box cupling endoporus is up big and down small shoulder hole; The cylindrical of pipe close is up big and down small multidiameter shaft.Pipe close upper tip portion is arranged in trombone slide box cupling top endoporus, and the lower end of pipe close is passed trombone slide box cupling endoporus and fixedlyed connected with box cupling.Radially clearance hole is arranged on the upper plug.Outlet valve is installed in upper end or the lower end of upper plug; Oiling valve is installed in upper end or the lower end of lower plunger.
The invention has the beneficial effects as follows, rational in infrastructure, simple, to be convenient to make, whirligig can effectively slow down eccentric wear, improves the working life of oil well pump; Radially clearance hole can be discharged the sand in the fluid, prevents the sand card; The present invention can realize cutting down the consumption of energy, improving the purpose of pump efficiency.
Description of drawings
Fig. 1 is tertiary oil recovery oil well pump example structure schematic representation of the present invention.
Among the figure: 1. plunger upper end valve bonnet, 2. joint, 3. tubing coupling, 4. tubing nipple, 5. go up pump barrel, 6. box cupling, 7. upper plug, 8. pump barrel, 9. plunger connector, 10. outlet valve, 11. pump barrel assemblies, 12. plunger piston assembly, 13. delivery connection, 14. trombone slide box cuplings, 15. pipe closes, 16. box cuplings, 17. oiling valve, 18. joints, 19. lower plungers, 20. plunger lower end valve bonnet, 21. whirligigs, 22. clearance holes radially.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.But what those skilled in the art should know is to the invention is not restricted to listed embodiment, as long as spirit according to the invention all should be included in protection scope of the present invention.
Tertiary oil recovery oil well pump of the present invention, comprise pump barrel assembly 11, plunger piston assembly 12, pump barrel 8 upper ends of pump barrel assembly 11 are installed with box cupling 6, and plunger piston assembly 12 comprises upper plug 7, outlet valve 10, lower plunger 19, oiling valve 17, and plunger piston assembly 12 is positioned at pump barrel assembly 11 and pumps.
Whirligig 21 is positioned at the middle part of plunger piston assembly 12.Upper plug 7, outlet valve 10 are positioned at the top of whirligig 21, and outlet valve 10 is installed in upper end or the lower end of upper plug 7; Lower plunger 19, oiling valve 17 are positioned at the below of whirligig 21, and oiling valve 17 is installed in upper end or the lower end of lower plunger 19; The diameter of upper plug 7 is less than the diameter of lower plunger 19.Radially clearance hole 22 is arranged on the upper plug 7.
The pump barrel of pump barrel assembly 11 is installed with box cupling in two ends about in the of 8, and box cupling 6 endoporus of pump barrel 8 upper ends are installed with pump barrel 5; The upper plug 7 of plunger piston assembly 12 cooperates with last pump barrel 5, and lower plunger 19 cooperates with pump barrel 8.
The present invention adopts the little pump in top, the big pump structure in bottom, and cancellation has the standing valve in the oil extraction pump now, has increased the descending power of sucker rod, and the bending deflection of sucker rod in the time of can reducing down stroke reduces neutral point, reaches and slows down the eccentric wear purpose.Simultaneously reduced by buoyancy during down stroke and fluid column weight acts on double influence on the small plunger, polished rod load is increased, the corresponding minimizing of energy consumption of electrical machinery reaches and improves pump efficiency, energy-saving and cost-reducing purpose.Upper plug 7 is provided with several radially clearance holes 22, and the sand that carries in the fluid is difficult for being deposited on and causes the sand card in pump barrel and the plunger under the fluid power percussion.
Whirligig 21 comprises trombone slide box cupling 14 and pipe close 15.The upper end of trombone slide box cupling 14 is installed with delivery connection 13; Trombone slide box cupling 14 endoporus are up big and down small shoulder hole; The cylindrical of pipe close 15 is up big and down small multidiameter shaft.The lower end of pipe close 15 is passed trombone slide box cupling 14 endoporus and is fixedlyed connected with box cupling 16; Pipe close 15 upper tip portions are arranged in trombone slide box cupling 14 top endoporus, radially there be not fixed constraint, realize the flexible connection between upper plug 7 and the lower plunger 19, plunger is rotated automatically with respect to pump barrel in the pumping process, can effectively eliminate the eccentric wear between plunger and the pump barrel.
Accompanying drawing 1 is tertiary oil recovery oil well pump one example structure schematic representation of the present invention, and the invention will be further described by reference to the accompanying drawings.
The tubing nipple 4 of pump barrel assembly 11, box cupling 6, pump barrel 8 from top to bottom are fixedly connected sequentially, and the endoporus of box cupling 6 is installed with pump barrel 5, and the upper/lower terminal of pump barrel assembly 11 is fixedlyed connected with oil pipe by tubing coupling 3 respectively.
The plunger upper end valve bonnet 1 of plunger piston assembly 12, joint 2, upper plug 7, plunger connector 9, outlet valve 10, delivery connection 13, whirligig 21, oiling valve 17, joint 18, lower plunger 19, plunger lower end valve bonnet 20 from top to bottom are fixedly connected sequentially.Outlet valve 10 can also be installed in the top of upper plug 7, and oiling valve 17 can also be installed in the below of lower plunger 19.Several radially clearance holes 22 are arranged on the upper plug 7, and radially clearance hole 22 can be level, also can be acclivitous, more helps sediment outflow when radially clearance hole 22 is inclined upwardly.
Upper plug 7 cooperates with last pump barrel 5, lower plunger 19 cooperates with pump barrel 8, plunger piston assembly 12 is done under the drive of sucker rod and is pumped, the fluid of down-hole enters in the plunger piston assembly 12 by the radially inlet opening on the plunger lower end valve bonnet 20 of plunger piston assembly 12 lower ends, behind oiling valve 17, outlet valve 10, discharged by the raidal drainage hole of plunger upper end valve bonnet 1.
It should be noted that above-described embodiment is example and unrestricted the present invention, those skilled in the art can design a lot of alternate embodiments and not break away from the claim scope of this patent.
Claims (4)
1. tertiary oil recovery oil well pump, comprise pump barrel assembly, plunger piston assembly, the pump barrel upper end of pump barrel assembly is installed with box cupling, and plunger piston assembly comprises upper plug, outlet valve, lower plunger, oiling valve, plunger piston assembly is positioned at the pump barrel assembly and pumps, and it is characterized in that:
The upper plug (7) of described plunger piston assembly (12), outlet valve (10) are positioned at the top of whirligig (21), and described lower plunger (19), oiling valve (17) are positioned at the below of whirligig (21); The diameter of upper plug (7) is less than the diameter of lower plunger (19);
Pump barrel (8) upper end of described pump barrel assembly (11) is installed with box cupling (6), and box cupling (6) endoporus is installed with pump barrel (5); The upper plug (7) of plunger piston assembly (12) cooperates with last pump barrel (5), and lower plunger (19) cooperates with pump barrel (8).
2. according to the described tertiary oil recovery oil well pump of claim 1, it is characterized in that: whirligig (21) comprises trombone slide box cupling (14) and pipe close (15); Fixedly connected with delivery connection (12) in the upper end of trombone slide box cupling (14), trombone slide box cupling (14) endoporus is up big and down small shoulder hole; The cylindrical of pipe close (15) is up big and down small multidiameter shaft; Pipe close (15) upper tip portion is arranged in trombone slide box cupling (14) top endoporus, and the lower end of pipe close (15) is passed trombone slide box cupling (14) endoporus and fixedlyed connected with box cupling (16).
3. according to the described tertiary oil recovery oil well pump of claim 2, it is characterized in that: radially clearance hole (22) is arranged on the described upper plug (7).
4. according to the described tertiary oil recovery oil well pump of claim 3, it is characterized in that: described outlet valve (10) is installed in upper end or the lower end of upper plug (7); Described oiling valve (17) is installed in upper end or the lower end of lower plunger (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100276154A CN103244395A (en) | 2012-02-09 | 2012-02-09 | Tertiary-recovery oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100276154A CN103244395A (en) | 2012-02-09 | 2012-02-09 | Tertiary-recovery oil well pump |
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| CN103244395A true CN103244395A (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2012100276154A Pending CN103244395A (en) | 2012-02-09 | 2012-02-09 | Tertiary-recovery oil well pump |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2405035Y (en) * | 1999-09-17 | 2000-11-08 | 辽河石油勘探局高升采油厂 | Blocking-proof and high-temp. resistance type rod like pump |
| CN2547903Y (en) * | 2002-03-29 | 2003-04-30 | 国营三八八厂 | Long-stroke feed back oil-well pump |
| RU2210003C1 (en) * | 2002-04-02 | 2003-08-10 | Открытое Акционерное Общество "Алнас" | Submersible electric-hydraulic drive plant |
| CN200943578Y (en) * | 2006-08-31 | 2007-09-05 | 鲁广立 | Multiple segment plunger self-rotating oil-well pump |
| WO2008085081A1 (en) * | 2007-01-10 | 2008-07-17 | Ponomarev Anatoly Konstantinov | Well electric pumping unit |
| CN101581299A (en) * | 2008-05-18 | 2009-11-18 | 邢立升 | Plunger piston with large flow passage |
| CN201391441Y (en) * | 2009-03-18 | 2010-01-27 | 天津市大港区龙新石油机械制造有限公司 | Novel inclined shaft oil well pump |
| CN201425017Y (en) * | 2009-05-27 | 2010-03-17 | 雷茂久 | Energy-saving plunger pump |
| CN201461346U (en) * | 2009-07-23 | 2010-05-12 | 文艺源 | Two-way plunger piston oil-extraction electric pump |
| CN202500751U (en) * | 2012-02-09 | 2012-10-24 | 中国石油集团渤海石油装备制造有限公司 | Tertiary oil recovery oil well pump |
-
2012
- 2012-02-09 CN CN2012100276154A patent/CN103244395A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2405035Y (en) * | 1999-09-17 | 2000-11-08 | 辽河石油勘探局高升采油厂 | Blocking-proof and high-temp. resistance type rod like pump |
| CN2547903Y (en) * | 2002-03-29 | 2003-04-30 | 国营三八八厂 | Long-stroke feed back oil-well pump |
| RU2210003C1 (en) * | 2002-04-02 | 2003-08-10 | Открытое Акционерное Общество "Алнас" | Submersible electric-hydraulic drive plant |
| CN200943578Y (en) * | 2006-08-31 | 2007-09-05 | 鲁广立 | Multiple segment plunger self-rotating oil-well pump |
| WO2008085081A1 (en) * | 2007-01-10 | 2008-07-17 | Ponomarev Anatoly Konstantinov | Well electric pumping unit |
| CN101581299A (en) * | 2008-05-18 | 2009-11-18 | 邢立升 | Plunger piston with large flow passage |
| CN201391441Y (en) * | 2009-03-18 | 2010-01-27 | 天津市大港区龙新石油机械制造有限公司 | Novel inclined shaft oil well pump |
| CN201425017Y (en) * | 2009-05-27 | 2010-03-17 | 雷茂久 | Energy-saving plunger pump |
| CN201461346U (en) * | 2009-07-23 | 2010-05-12 | 文艺源 | Two-way plunger piston oil-extraction electric pump |
| CN202500751U (en) * | 2012-02-09 | 2012-10-24 | 中国石油集团渤海石油装备制造有限公司 | Tertiary oil recovery oil well pump |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130814 |