CN101858333A - Double working cylinder oil pump capable of continuously pumping - Google Patents
Double working cylinder oil pump capable of continuously pumping Download PDFInfo
- Publication number
- CN101858333A CN101858333A CN 201010206227 CN201010206227A CN101858333A CN 101858333 A CN101858333 A CN 101858333A CN 201010206227 CN201010206227 CN 201010206227 CN 201010206227 A CN201010206227 A CN 201010206227A CN 101858333 A CN101858333 A CN 101858333A
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- pump
- plunger
- pull bar
- main pump
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- 238000005086 pumping Methods 0.000 title claims abstract description 19
- 239000010727 cylinder oil Substances 0.000 title 1
- 239000003129 oil well Substances 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 238000000605 extraction Methods 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
A continuous pumping double-working-barrel oil well pump is applied to the technical field of oil extraction in oil fields. A main pump body fixing valve is fixed at the lower end of the main pump body pump barrel; a main pump plunger is arranged in the main pump barrel, the upper end of the main pump plunger is connected with a hollow main pump plunger pull rod, and a main pump traveling valve is arranged in the main pump plunger. An upper pump body cylinder is symmetrically fixed on the upper part of the main pump body cylinder, an upper pump body plunger is arranged in the upper pump body cylinder, and the upper end of the upper pump body plunger is connected with an upper pump plunger pull rod. And a pull rod reversing gear is arranged between the two upper pump plunger pull rods and the main pump plunger pull rod respectively, and the moving directions of the main pump plunger pull rod and the upper pump plunger pull rod are opposite. The effect is as follows: the main pump plunger and the upper pump plunger work alternately, the oil extraction pump can continuously pump well liquid, and the oil well pump continuously discharges liquid into the oil pipe and the well mouth in the upper stroke and the lower stroke of the oil pumping rod, so that the working efficiency of the pump is improved.
Description
Technical field
The present invention relates to oil recovery technique field, oil field, particularly a kind of oil well down-hole rod pumping pump is a kind of two working barrel oil well pumps of continuous pumping.
Background technique
Oil well pump is a requisite oil tool in the oilfield exploitation, is the visual plant that down-hole liquid is lifted to ground, and petroleum industry is used the working condition that pump efficiency is estimated pump usually.Pump efficiency is high more, shows that the working condition of pump is good more, and is big more to the contribution of oil field system efficient, simultaneously also energy-conservation more.Therefore, improve the working efficiency of pump, to improving the system effectiveness in oil field, cutting down the consumption of energy has great importance.
At present, the oil well pump of oil field use is single working barrel.The working state of pump is in upstroke, sucks liquid, well head drain in the pump; In down stroke, pump is the discharge opeing body in oil pipe, and well head is drain not.Be intermittently pumping fluid of oil well pump, the idle work that pumping unit is done in the down stroke process is more, causes the waste of energy, finally causes oil field system efficient low, the cost of investment height.
Summary of the invention
The objective of the invention is: two working barrel oil well pumps that a kind of continuous pumping is provided, utilize the pull bar tumbler gear to make upper plug pull bar moving direction opposite with main plunger pull bar moving direction, reach main plunger pump and the alternation of upper plug pump, oil extraction pump is swabbing well liquid continuously, improves the oil extraction pump working efficiency.
The technical solution used in the present invention is: two working barrel oil well pumps of continuous pumping, mainly form by sucker rod, main pump plunger pull bar, last pump plunger pull bar, upper pump casing plunger, upper pump casing traveling valve, upper pump casing standing valve, pump monolithic case, main pump body plunger, main pump body pump barrel, main pump body standing valve, pull bar tumbler gear, upper pump casing pump barrel and main pump body traveling valve, it is characterized in that: there is the main pump body pump barrel lower end in the pump monolithic case, and the center hole internal fixation has the main pump body standing valve in the lower end of main pump body pump barrel; In the main pump body pump barrel and in the upper end of main pump body pump barrel, the main pump body plunger is arranged, the upper end of main pump body plunger is connected with hollow main pump plunger pull bar, hollow main pump plunger pull bar center hole lower end and main pump body plunger epicoele UNICOM, there is radial hole the upper end of hollow main pump plunger pull bar, and crude oil can flow out by the radial hole of main pump plunger pull bar; The main pump body traveling valve is arranged in the main pump body plunger.
In the pump monolithic case and in the top of main pump body pump barrel symmetry, two upper pump casing pump barrels are arranged; The pump monolithic case has center hole, and pump monolithic case center hole is parallel with two upper pump casing pump barrels.Be fixed with the upper pump casing standing valve in the lower end of upper pump casing pump barrel, in two upper pump casing pump barrels the upper pump casing plunger arranged respectively, the upper end of upper pump casing plunger is connected with the pump plunger pull bar, and the upper pump casing traveling valve is arranged in the upper pump casing plunger.On the wall of pump monolithic case and in the bottom of two upper pump casing standing valves, radially upper pump casing liquid entering hole is arranged respectively.
Main pump plunger pull bar passes pump monolithic case center hole, between pump plunger pull bar on two and main pump plunger pull bar the pull bar tumbler gear is arranged respectively, and the axle of pull bar tumbler gear is fixed on the pump monolithic case inwall.There is tooth bar both sides at main pump plunger pull bar, tooth bar and the engagement of pull bar tumbler gear; There is tooth bar pump plunger pull bar inboard on two, tooth bar and the engagement of pull bar tumbler gear.When main pump plunger pull bar moved upward, main pump plunger pull bar drove the rotation of pull bar tumbler gear, and two of pull bar tumbler gear drives are gone up the pump plunger pull bar and moved downward simultaneously.Upward pump plunger pull bar moving direction is opposite with two for main pump plunger pull bar.The main pump body plunger that main pump plunger pull bar is driven is opposite with the upper pump casing plunger motion direction that two last pump plunger pull bars are driven.
In order to make two to go up pump plunger pull bar maintenance straight reciprocating motion, the upper end of pump plunger pull bar has guide pad respectively on two, and the guide pad two ends are fixed on the pump monolithic case inwall.Two guide pads have righting hole respectively, go up the righting hole that pump plunger pull bar upper end is passed two guide pads respectively for two.
Be convenient and make that described pump monolithic case comprises pump case and following pump case, adopt between last pump case and the following pump case to be threaded.
The following pump process and the working procedure of two working barrel oil well pumps of continuous pumping: consult Fig. 1.
Following pump process: at first the upper end of a sucker rod 1 with hollow main pump plunger pull bar 2 is connected, connects an oil pipe again, promptly sucker rod 1 is lowered to oil pipe and oil well pump, and pump is transferred to designed depth; Secondly, sucker rod 1 is continued to transfer, cause main pump body plunger 8, will carry 10mm on the sucker rod 1 again to pump housing bottom position; At last, pumping unit horsehead is turned round to lower dead centre and be connected with sucker rod 1.
Working procedure: the moving direction of main pump body plunger 8 is consistent with the moving direction of ground sucker rod 1 and main pump plunger pull bar 2; And the moving direction of upper pump casing plunger 4 is just in time opposite with the moving direction of ground sucker rod 1 and main pump plunger pull bar 2.The working state of main pump body plunger 8 is just in time opposite with the working state of upper pump casing plunger 4.Realize the well head continuous draining, improve pump efficiency, cut down the consumption of energy.Sucker rod 1 is when doing the upstroke operation, and main pump body plunger 8 is also being done the upstroke operation, sucks liquid, well head drain in the main pump body pump barrel 9; And the working state of upper pump casing plunger 4 is opposite with the working state of main pump body plunger 8, and upper pump casing plunger 4 is done down stroke motion, upper pump casing pump barrel 13 discharge opeing in oil pipe in upper pump casing pump barrel 13.Sucker rod 1 is when doing the down stroke operation, and main pump body plunger 8 is also being done the down stroke motion, and main pump body pump barrel 9 is the discharge opeing body in oil pipe; And upper pump casing plunger 4 is done the upstroke motion in last pump barrel, sucks liquid, well head drain in the upper pump casing pump barrel 13.So just realized that sucker rod is in service at upper and lower stroke, the well head continuous draining.Innovative point of the present invention is main pump plunger pull bar 2 in the reciprocating while, and the pull bar tumbler gear 11 by main pump plunger pull bar 2 both sides drives two respectively and goes up pump plunger pull bars 3; When main pump body plunger 8 recovers the oil, have two upper pump casing plungers 4 also to recover the oil, and main pump body plunger 8 is opposite with two upper pump casing plunger 4 moving direction.Adopted the structure of existing plunger, pump barrel, standing valve and traveling valve in the present invention.
Beneficial effect of the present invention: two working barrel oil well pumps of the continuous pumping of the present invention, main pump body plunger and the alternation of upper pump casing plunger, oil extraction pump is swabbing well liquid continuously, in sucker rod upstroke and down stroke oil well pump continuously in oil pipe, the well head discharge opeing, improved the working efficiency of pump.
Description of drawings
Fig. 1 is two working barrel oil well pump structural profile schematic representation of the continuous pumping of the present invention.
Among the figure, 1. sucker rod, 2. main pump plunger pull bar, 3. go up the pump plunger pull bar, 4. upper pump casing plunger, 5. upper pump casing traveling valve, 6. upper pump casing standing valve, 7. pump monolithic case, 8. main pump body plunger, 9. main pump body pump barrel, 10. main pump body standing valve, 11. pull bar tumbler gears, 13. upper pump casing pump barrels, 14. the upper pump casing liquid entering hole, 15. main pump body traveling valves.
Embodiment
Embodiment 1: the two working barrel oil well pumps with a continuous pumping are example, and the present invention is described in further detail.
Consult Fig. 1.Two working barrel oil well pumps of the continuous pumping of the present invention mainly are made up of sucker rod 1, main pump plunger pull bar 2, last pump plunger pull bar 3, upper pump casing plunger 4, upper pump casing traveling valve 5, upper pump casing standing valve 6, pump monolithic case 7, main pump body plunger 8, main pump body pump barrel 9, main pump body standing valve 10, pull bar tumbler gear 11, upper pump casing pump barrel 13, upper pump casing liquid entering hole 14 and main pump body traveling valve 15.There is a main pump body pump barrel 9 lower end in pump monolithic case 7, at the lower end of main pump body pump barrel 9 center hole internal fixation a main pump body standing valve 10 is arranged; In main pump body pump barrel 9 and in the upper end of main pump body pump barrel 9, main pump body plunger 8 is arranged, the upper end of main pump body plunger 8 is connected with hollow main pump plunger pull bar 2, hollow main pump plunger pull bar 2 center hole lower ends and main pump body plunger 8 epicoele UNICOMs, there is radial hole the upper end of hollow main pump plunger pull bar 2, and main pump body traveling valve 15 is arranged in main pump body plunger 8.Two main pump body traveling valves 15 are arranged in the main pump body plunger 8.
In pump monolithic case 7 and in the top of main pump body pump barrel 9 symmetry, two upper pump casing pump barrels 13 are arranged.Pump monolithic case 7 has center hole, and pump monolithic case 7 center holes are parallel with two upper pump casing pump barrels.Be fixed with upper pump casing standing valve 6 in the lower end of upper pump casing pump barrel 13, in two upper pump casing pump barrels 13 upper pump casing plunger 4 arranged respectively, the upper end of upper pump casing plunger 4 is connected with solid last pump plunger pull bar 3, and upper pump casing traveling valve 5 is arranged in upper pump casing plunger 4.On the wall of pump monolithic case 7 and in the bottom of two upper pump casing standing valves 6, radially upper pump casing liquid entering hole 14 is arranged respectively.
Main pump plunger pull bar 2 passes pump monolithic case 7 center holes, between pump plunger pull bar 3 on two and main pump plunger pull bar 2 a pull bar tumbler gear 11 is arranged respectively, and the axle of pull bar tumbler gear 11 is fixed on pump monolithic case 7 inwalls.There is tooth bar both sides at main pump plunger pull bar 2, tooth bar and 11 engagements of pull bar tumbler gear; There is tooth bar pump plunger pull bar 3 inboards on two, tooth bar and 11 engagements of pull bar tumbler gear.The upper end of pump plunger pull bar 3 has respectively in the righting hole that is enclosed within guide pad on two, and the guide pad two ends are fixed on pump monolithic case 7 inwalls.
Pump monolithic case 7 comprises pump case and following pump case, adopts between last pump case and the following pump case to be threaded.
Claims (3)
1. two working barrel oil well pumps of a continuous pumping, mainly by sucker rod (1), main pump plunger pull bar (2), last pump plunger pull bar (3), upper pump casing plunger (4), upper pump casing traveling valve (5), upper pump casing standing valve (6), pump monolithic case (7), main pump body plunger (8), main pump body pump barrel (9), main pump body standing valve (10), pull bar tumbler gear (11), upper pump casing pump barrel (13) and main pump body traveling valve (15) are formed, it is characterized in that: there is main pump body pump barrel (9) lower end in pump monolithic case (7), and the center hole internal fixation has main pump body standing valve (10) in the lower end of main pump body pump barrel (9); In main pump body pump barrel (9) and in the upper end of main pump body pump barrel (9), main pump body plunger (8) is arranged, the upper end of main pump body plunger (8) is connected with hollow main pump plunger pull bar (2), hollow main pump plunger pull bar (2) center hole lower end and main pump body plunger (8) epicoele UNICOM, there is radial hole the upper end of hollow main pump plunger pull bar (2); Main pump body traveling valve (15) is arranged in main pump body plunger (8);
In pump monolithic case (7) and in the top symmetry of main pump body pump barrel (9), two upper pump casing pump barrels (13) are arranged; Pump monolithic case (7) has center hole, and pump monolithic case (7) center hole is parallel with two upper pump casing pump barrels; Be fixed with upper pump casing standing valve (6) in the lower end of upper pump casing pump barrel (13), upper pump casing plunger (4) is arranged respectively in two upper pump casing pump barrels (13), the upper end of upper pump casing plunger (4) is connected with pump plunger pull bar (3), and upper pump casing traveling valve (5) is arranged in upper pump casing plunger (4); Radially upper pump casing liquid entering hole (14) is arranged respectively on the wall of pump monolithic case (7) and in the bottom of two upper pump casing standing valves (6);
Main pump plunger pull bar (2) passes pump monolithic case (7) center hole, between pump plunger pull bar (3) on two and main pump plunger pull bar (2) pull bar tumbler gear (11) is arranged respectively, and the axle of pull bar tumbler gear (11) is fixed on pump monolithic case (7) inwall; There is tooth bar both sides at main pump plunger pull bar (2), tooth bar and pull bar tumbler gear (11) engagement; There is tooth bar pump plunger pull bar (3) inboard on two, tooth bar and pull bar tumbler gear (11) engagement.
2. two working barrel oil well pumps of continuous pumping as claimed in claim 1, it is characterized in that: the upper end of pump plunger pull bar (3) has guide pad respectively on two, the guide pad two ends are fixed on pump monolithic case (7) inwall, two guide pads have righting hole respectively, go up the righting hole that pump plunger pull bar (3) upper end is passed two guide pads respectively for two.
3. two working barrel oil well pumps of continuous pumping as claimed in claim 1 or 2 is characterized in that: described pump monolithic case (7) comprises pump case and following pump case, adopts between last pump case and the following pump case to be threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010206227A CN101858333B (en) | 2010-06-21 | 2010-06-21 | Double working cylinder oil pump capable of continuously pumping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010206227A CN101858333B (en) | 2010-06-21 | 2010-06-21 | Double working cylinder oil pump capable of continuously pumping |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101858333A true CN101858333A (en) | 2010-10-13 |
| CN101858333B CN101858333B (en) | 2012-10-17 |
Family
ID=42944434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010206227A Active CN101858333B (en) | 2010-06-21 | 2010-06-21 | Double working cylinder oil pump capable of continuously pumping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101858333B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657090A (en) * | 2018-06-28 | 2020-01-07 | 中国石油天然气股份有限公司 | Lifting device and method |
| CN114427529A (en) * | 2022-04-07 | 2022-05-03 | 天津市益彰石油科技发展有限公司 | Lifting device for reducing stroke resistance of sucker rod |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2269284A5 (en) * | 1973-12-20 | 1975-11-21 | Ceria | Reciprocating motion transmission - with frequency and amplitude control for oil well reciprocating pumps |
| CN2197478Y (en) * | 1994-02-08 | 1995-05-17 | 熊映明 | Continuous vertical two cylinder water-suction machine driven by foot stamping |
| EP1382845A2 (en) * | 2002-07-16 | 2004-01-21 | ULTRAFLEX S.p.A. | Oil pump for marine steering gear |
| US6729391B2 (en) * | 2001-12-14 | 2004-05-04 | Kudu Industries Inc. | Insertable progressing cavity pump |
| CN2667196Y (en) * | 2003-12-24 | 2004-12-29 | 马东 | Parallel oil-well pump |
| CN201705634U (en) * | 2010-06-21 | 2011-01-12 | 中国石油天然气股份有限公司 | Double working cylinder oil pump capable of continuously pumping |
-
2010
- 2010-06-21 CN CN201010206227A patent/CN101858333B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2269284A5 (en) * | 1973-12-20 | 1975-11-21 | Ceria | Reciprocating motion transmission - with frequency and amplitude control for oil well reciprocating pumps |
| CN2197478Y (en) * | 1994-02-08 | 1995-05-17 | 熊映明 | Continuous vertical two cylinder water-suction machine driven by foot stamping |
| US6729391B2 (en) * | 2001-12-14 | 2004-05-04 | Kudu Industries Inc. | Insertable progressing cavity pump |
| EP1382845A2 (en) * | 2002-07-16 | 2004-01-21 | ULTRAFLEX S.p.A. | Oil pump for marine steering gear |
| CN2667196Y (en) * | 2003-12-24 | 2004-12-29 | 马东 | Parallel oil-well pump |
| CN201705634U (en) * | 2010-06-21 | 2011-01-12 | 中国石油天然气股份有限公司 | Double working cylinder oil pump capable of continuously pumping |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657090A (en) * | 2018-06-28 | 2020-01-07 | 中国石油天然气股份有限公司 | Lifting device and method |
| CN114427529A (en) * | 2022-04-07 | 2022-05-03 | 天津市益彰石油科技发展有限公司 | Lifting device for reducing stroke resistance of sucker rod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101858333B (en) | 2012-10-17 |
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