CN201326535Y - Double-plunger suspended anti-airlock oil pump - Google Patents
Double-plunger suspended anti-airlock oil pump Download PDFInfo
- Publication number
- CN201326535Y CN201326535Y CNU2008202244301U CN200820224430U CN201326535Y CN 201326535 Y CN201326535 Y CN 201326535Y CN U2008202244301 U CNU2008202244301 U CN U2008202244301U CN 200820224430 U CN200820224430 U CN 200820224430U CN 201326535 Y CN201326535 Y CN 201326535Y
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- Prior art keywords
- plunger
- pump barrel
- connecting rod
- pump
- joint
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- Expired - Fee Related
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Abstract
The utility model discloses a double-plunger suspended anti-airlock oil pump, which consists of a pump barrel reinforcing sleeve, a pump barrel, a standing valve assembly, a plunger assembly and a plunger connecting rod. A cylindrical double-plunger structure is positioned between the upper part and the lower part inside the pump barrel; the upper parts of the two plunders are respectively provided with a pump barrel joint; the centers of the pump barrel joints are provided with plunger connecting rod holes; a plurality of communicating holes are arranged on the periphery of the upper part of each pump barrel joint; the pump barrel joints are connected with the pump barrel by threads; the lower end of the pump barrel is provided with a cylinder valve core; the lower internal edge of the valve core is provided with a conical surface and connected with the pump barrel; the plunger connecting rod comprises an upper plunger connecting rod and a lower plunger connecting rod which are connected by a connecting rod joint; the lower end of the lower plunger connecting rod is provided with the tapered sealing seat of the lower plunger; the plunger connecting rod passes through the plunger connecting rod holes on the upper plunger and the lower plunger and connects the upper plunger and the lower plunger in series by the plunger connecting rod joint so as to realize sliding fit; the pump barrel reinforcing sleeve is arranged on the periphery of the pump barrel.
Description
One, technical field
The utility model relates to the oil well pump that a kind of oil field machinery oil is used, and specifically a kind of double-plunger suspension type is prevented the gas lock oil well pump.
Two, background technique
Current, because common oil well pump is in the process of heavy crude producing, high-gas-contained well, too high, the gas lock of viscosity of thickened oil, effect is undesirable, and ball seat is closed hysteresis, causes pump efficiency not high, influences oil well output.Common oil well pump recovers the oil in inclined shaft, and ball seat tilts, and ball seat is not closed completely, and causes pump efficiency not high, influences oil well output.In oil pumping process, because tail pipe is long or have packet to do the time spent under the pump, pump barrel is subjected to bigger pulling force, and pump barrel generation necking deformation under the effect of this power has increased the descending resistance of plunger, when serious holddown can take place.
Three, summary of the invention
The purpose of this utility model provides the anti-gas lock oil well pump of a kind of double-plunger suspension type, solves above-mentioned oil well pump and is used in the problem that exists in the oil pumping process.
The technical solution of the utility model realizes in the following manner:
The utility model is made up of pump barrel strengthening sleeve, pump barrel, standing valve assembly, plunger piston assembly and plunger connecting rod, have cylindrical shape double-plunger structure on it is characterized in that in pump barrel, be provided with a pump barrel joint separately in two plunger upper part, be provided with the plunger connecting rod hole at pump barrel joint center, be provided with several intercommunicating pores on the pump barrel joint upper periphery separately, be threaded between pump barrel joint and the pump barrel, be provided with a cylindrical spool in pump barrel lower end separately, in under spool along on be provided with the conical surface, with pump barrel be connected; Plunger connecting rod is made up of upper plug connecting rod and lower plunger connecting rod, and plunger connecting rod is connected by linkage connector up and down, and lower plunger connecting rod lower end is provided with the conical sealing seat of lower plunger; The plunger connecting rod hole that plunger connecting rod passes lower plunger will be gone up lower plunger by the plunger connecting rod joint and will be chained together, between be slidingly matched; Be provided with the pump barrel strengthening sleeve in the periphery of pump barrel.
The pump barrel strengthening sleeve is made as tubular shape, and the upper end portion is provided with upper connection, is threaded with pump barrel strengthening sleeve and pump barrel upper end, and the underpart is provided with lower contact, is connected with the standing valve joint screw thread with the pump barrel strengthening sleeve.
The upper and lower end separately of plunger connecting rod is provided with male thread up and down.
The plunger connecting head is made as cylindrical, the center is provided with a connecting head, box thread is established on connecting head top, be connected with the lower plunger connecting rod, the bottom is provided with male thread, is connected with the plunger connecting rod joint screw thread, and plunger connecting rod joint bottom is provided with box thread, be threaded with the lower plunger connecting rod, plunger connecting rod upper end of joint periphery is established conical sealing seat.
The ball seat sealing surface of standing valve assembly is made as positive taper or tilted conical, and sealing surface is provided with ball sealer, is covered with seal closure on the ball sealer, and seal closure is inlayed with pump barrel.
The utility model compared with prior art has the following advantages:
1. this pump plunger adopts two mechanical type valve body structures, valve body positive closing under the effect of mechanical force in the production process.Has excellent sealing performance.
2. the suspension type oil well pump is exactly to take a stressed bridge on the conventional pumps between the box cupling, and pump barrel only depends on upper end and pump barrel strengthening sleeve joint to fix, and the lower end is unfixing, so just can avoid the stress deformation of pump barrel.
3. be applicable to deep mining, need have the oil well that downhole tool carries out the oil well of technological measure and the tail pipe that extends.
4. in separate zone production, when packet is made envelope, deblocking, setting force and deblocking masterpiece are used on the pump barrel strengthening sleeve, eliminate packer setting power suffered on the original pump barrel and deblocking power, can avoid harmful effect that oil well pump is caused, improve the perpendicularity of plunger, avoid generations such as plunger eccentric wear, pump barrel distortion.
5. stronger survivability is arranged.Pump is in the rountrip process, and with the internal surface of sleeve pipe collision, in the transportation circular flow, pitch force acts on the pump barrel strengthening sleeve, and pump barrel is unaffected.
6. the advantage that has pump efficiency height, long service life has strong bending resistance, resistance to compression and shock resistance again.
Four, description of drawings
Accompanying drawing is a structural representation of the present utility model
1. standing valve assemblies among the figure, 2. sealing seat, 3. pump barrel strengthening sleeve, 4. pump barrel, 5. plunger piston assembly, 6. plunger connecting rod, 7. plunger connecting rod joint.
Five, embodiment
For further disclosing the technical solution of the utility model, elaborate by embodiment below in conjunction with Figure of description:
The purpose of this utility model provides the anti-gas lock oil well pump of a kind of double-plunger suspension type, solves above-mentioned oil well pump and is used in the problem that exists in the oil pumping process.
The utility model is made up of pump barrel strengthening sleeve, pump barrel, standing valve assembly, plunger piston assembly and plunger connecting rod, have cylindrical shape double-plunger structure on it is characterized in that in pump barrel, be provided with a pump barrel joint separately in two plunger upper part, be provided with the plunger connecting rod hole at pump barrel joint center, be provided with several intercommunicating pores on the pump barrel joint upper periphery separately, be threaded between pump barrel joint and the pump barrel, be provided with a cylindrical spool in pump barrel lower end separately, in under spool along on be provided with the conical surface, with pump barrel be connected; Plunger connecting rod is made up of upper plug connecting rod and lower plunger connecting rod, and plunger connecting rod is connected by linkage connector up and down, and lower plunger connecting rod lower end is provided with the conical sealing seat of lower plunger; The plunger connecting rod hole that plunger connecting rod passes lower plunger will be gone up lower plunger by the plunger connecting rod joint and will be chained together, between be slidingly matched; Be provided with the pump barrel strengthening sleeve in the periphery of pump barrel.
When using the utility model, at first tail pipe, packet are arrived the oil well designed depth down, the lower end of the pump barrel strengthening sleeve 3 that will connect with pump barrel 4 is connected one with the standing valve joint subsequently, standing valve assembly 1 is connected one with tail pipe, the upper end is connected one with pump barrel, and the pump barrel upper end connects with tubing string.Pump barrel is suspended in the pump barrel strengthening sleeve, is free state, and the impulse force or the support force of bottom tail pipe pulling force, packet all act directly on the pump barrel strengthening sleeve, and pump barrel is not stressed, and have protected pump barrel indeformable.In the oil pumping process of oil well pump, can there be the valve ball that the moves about phenomenon of not opening in air inlet in the pump barrel, can not produce the gas lock phenomenon yet, because of plunger connecting rod is opened sealing seat 2 under the effect of mechanical force by force, gas can enter oil pipe in plunger piston assembly, guaranteed the working properly of oil well pump, the working life and the Applicable scope of oil well pump have been improved, improved pump efficiency, prolonged pump detection period, rate when having improved field produces.
Claims (5)
1, the anti-gas lock oil well pump of a kind of double-plunger suspension type, form by pump barrel strengthening sleeve, pump barrel, standing valve assembly, plunger piston assembly and plunger connecting rod, have cylindrical shape double-plunger structure on it is characterized in that in pump barrel, be provided with a pump barrel joint separately in two plunger upper part, be provided with the plunger connecting rod hole at pump barrel joint center, be provided with several intercommunicating pores on the pump barrel joint upper periphery separately, be threaded between pump barrel joint and the pump barrel, be provided with a cylindrical spool in pump barrel lower end separately, in under spool along on be provided with the conical surface, with pump barrel be connected; Plunger connecting rod is made up of upper plug connecting rod and lower plunger connecting rod, and plunger connecting rod is connected by linkage connector up and down, and lower plunger connecting rod lower end is provided with the conical sealing seat of lower plunger; The plunger connecting rod hole that plunger connecting rod passes lower plunger will be gone up lower plunger by the plunger connecting rod joint and will be chained together, between be slidingly matched; Be provided with the pump barrel strengthening sleeve in the periphery of pump barrel.
2, the anti-gas lock oil well pump of double-plunger suspension type according to claim 1, it is characterized in that: the pump barrel strengthening sleeve is made as tubular shape, and the upper end portion is provided with upper connection, is threaded with pump barrel strengthening sleeve and pump barrel upper end, the underpart is provided with lower contact, is connected with the standing valve joint screw thread with the pump barrel strengthening sleeve.
3, the anti-gas lock oil well pump of double-plunger suspension type according to claim 1, it is characterized in that: the upper and lower end separately of plunger connecting rod is provided with male thread up and down.
4, the anti-gas lock oil well pump of double-plunger suspension type according to claim 1, it is characterized in that: the plunger connecting head is made as cylindrical, the center is provided with a connecting head, box thread is established on connecting head top, is connected with the lower plunger connecting rod, and the bottom is provided with male thread, be connected with the plunger connecting rod joint screw thread, plunger connecting rod joint bottom is provided with box thread, is threaded with the lower plunger connecting rod, and plunger connecting rod upper end of joint periphery is established conical sealing seat.
5, the anti-gas lock oil well pump of double-plunger suspension type according to claim 1, it is characterized in that: the ball seat sealing surface of standing valve assembly is made as positive taper or tilted conical, and sealing surface is provided with ball sealer, is covered with seal closure on the ball sealer, and seal closure is inlayed with pump barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202244301U CN201326535Y (en) | 2008-11-27 | 2008-11-27 | Double-plunger suspended anti-airlock oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202244301U CN201326535Y (en) | 2008-11-27 | 2008-11-27 | Double-plunger suspended anti-airlock oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201326535Y true CN201326535Y (en) | 2009-10-14 |
Family
ID=41178508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202244301U Expired - Fee Related CN201326535Y (en) | 2008-11-27 | 2008-11-27 | Double-plunger suspended anti-airlock oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201326535Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452821A (en) * | 2013-09-04 | 2013-12-18 | 易鲁川 | Blowout prevention oil-well pump |
| CN110905468A (en) * | 2019-11-12 | 2020-03-24 | 盘锦兴隆石化机械有限公司 | Heat-insulation underground multistage compensator for oil field steam injection well |
-
2008
- 2008-11-27 CN CNU2008202244301U patent/CN201326535Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452821A (en) * | 2013-09-04 | 2013-12-18 | 易鲁川 | Blowout prevention oil-well pump |
| CN103452821B (en) * | 2013-09-04 | 2015-11-25 | 易鲁川 | Anti-jetting oil pump |
| CN110905468A (en) * | 2019-11-12 | 2020-03-24 | 盘锦兴隆石化机械有限公司 | Heat-insulation underground multistage compensator for oil field steam injection well |
| CN110905468B (en) * | 2019-11-12 | 2021-11-09 | 盘锦兴隆石化机械有限公司 | Heat-insulation underground multistage compensator for oil field steam injection well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20091014 Termination date: 20101127 |