CN2782986Y - Hydraulic oil pump - Google Patents
Hydraulic oil pump Download PDFInfo
- Publication number
- CN2782986Y CN2782986Y CN 200520019627 CN200520019627U CN2782986Y CN 2782986 Y CN2782986 Y CN 2782986Y CN 200520019627 CN200520019627 CN 200520019627 CN 200520019627 U CN200520019627 U CN 200520019627U CN 2782986 Y CN2782986 Y CN 2782986Y
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- CN
- China
- Prior art keywords
- valve
- pump barrel
- piston
- pump
- liquid
- 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.)
- Expired - Fee Related
Links
- 239000010720 hydraulic oil Substances 0.000 title abstract description 4
- 239000007788 liquid Substances 0.000 claims abstract description 49
- 238000007599 discharging Methods 0.000 claims abstract description 21
- 239000012530 fluid Substances 0.000 abstract description 24
- 239000003129 oil well Substances 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 17
- 238000012423 maintenance Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
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- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
The utility model relates to a hydraulic oil pump in oil wells, which is composed of an upper pump barrel, a lower pump barrel, a piston, a lifting valve, liquid discharging valves and a liquid inlet valve, wherein the lower end of the lower pump barrel is provided with the liquid inlet valve. The utility model is characterized in that a valve seat is arranged between the upper pump barrel and the lower pump barrel. The inner diameters of the pump barrels are from 20mm to 90mm, and the length of the upper pump barrel and the lower pump barrel is from 200mm to 8000mm. The piston is arranged in the upper pump barrel. A plunger is connected to the lower part of the piston. The wall of the lower pump barrel is provided with a liquid discharging valve. The wall of the upper pump barrel is provided with the lifting valve and a liquid discharging valve. The utility model has the advantages that a ground reversing mechanism is adopted to change the flow direction of power fluid to push the piston to move to and fro. The utility model overcomes the defect a pump needs to be lifted to cause stop production when the reversing valve of a hydraulic piston pump is maintained. In addition, the utility model adopts one liquid passage which is shared by power liquid and output liquid, reduces one pipeline and reduces the construction difficulty of the installation of pipelines under wells.
Description
Technical field
The utility model relates to technical field of petroleum extraction, is a kind of hydraulic well pump that is installed in the oil well.Be that a kind of highly pressurised liquid that adopts the ground hydraulic power station to produce is a power, ground commutation, the reciprocating hydraulic well pump of control piston.
Background technique
The advantage of existing hydraulic well pump is: pump is hung dark, the lift height, and discharge capacity is big, and is applied widely, can overcome the pump rod of rod pump and the shortcoming of tube inner wall friction.The power fluid of existing hydraulic well pump is to be transported to oil well pump by oil pipe, and weary power fluid returns ground by the pipeline of special setting, and output liquid gives rise to ground by the annular space between sleeve pipe and the oil pipe.Like this, in oil well, need three fluid passages, respectively transmitting power liquid, weary power fluid and output liquid.In addition, the changement of existing hydraulic well pump is arranged on the hydraulic well pump.Changement long term wear or break down must trip out maintenance from the dark down-holes of thousands of rice with hydraulic well pump, and influence is produced.As The field more widely the double-action hydraulic piston pump be exactly wherein a kind of.It is made up of cylinder barrel, traveling valve, feed liquor valve, upper piston, last fluid cylinder, lower piston, following fluid cylinder and control guiding valve etc.The last chamber of last fluid cylinder and the following chamber of following fluid cylinder suck, discharge well output liquid as pump barrel, and liquid sucting valve and liquid discharging valve are housed on pump barrel, and the piston in the upper and lower fluid cylinder connects with piston rod, and control flume is arranged on the piston rod, the control sliding valve movement.Between last fluid cylinder, following fluid cylinder and traveling valve, the standing valve seal ring is arranged.This double-action hydraulic piston pump and the supporting use of downhole packer, its deficiency is: the piston commutation is to be finished by the commutation groove of piston rod, and wearing and tearing or malfunctioning take place the commutation groove of piston rod, must pump be tripped out maintenance from thousands of meters depths, cause stopping production.In addition, in oil well, need three fluid passages transmitting power liquid, weary power fluid and output liquid respectively, must increase a pipeline.Space in the oil well is limited, increases pipeline and can cause down-hole accident; Increase pipeline and also increased the installation difficulty.
The model utility content
The purpose of this utility model is: a kind of novel hydraulic oil well pump is provided, overcomes the shortcoming that original oil well pump piston commutation action is finished in the down-hole.In the commutation of ground control oil well pump piston, simplify the hydraulic oil pumping pump structure, reduce the hydraulic well pump fabricating cost; In addition, make hydraulic well pump can adapt to two fluid passages, promptly under the situation that two fluid passages are arranged, just can finish transmitting power liquid, weary power fluid and output liquid.Reduce by a down-hole pipeline, also can finish oil extraction operation.
The purpose of this utility model is finished by following scheme: hydraulic well pump is made up of up and down pump barrel, piston, lifting valve, liquid discharging valve, feed liquor valve, and there is the screw thread that is connected with oil pipe on last pump barrel top.There is the feed liquor valve following pump barrel lower end, and general feed liquor valve adopts ball valve.Feature of the present utility model is: go up between pump barrel and the following pump barrel and be fixed with valve seat, valve seat is divided into two chambers with pump barrel inside.The internal diameter of pump barrel is between the 20-90 millimeter, and the length of last pump barrel is between the 200-8000 millimeter, and the length of following pump barrel is between the 200-8000 millimeter.In the last pump barrel piston is arranged, piston diameter is between the 20-90 millimeter.The piston bottom is connected with plunger, and plunger diameter is between the 20-90 millimeter, and plungers length is between the 200-8000 millimeter.On the pump barrel wall liquid discharging valve being arranged down, lifting valve and liquid discharging valve are arranged on the last pump barrel wall, what lifting valve and liquid discharging valve adopted is one-way valve.One-way valve comprises individual event ball valve or unidirectional guiding valve.
The utility model is connected the oil pipe bottom, is installed in the underground bushing, utilize packet that the utility model is fixed in the sleeve pipe.Floor mounted hydraulic power station and hydraulic pressure changement, the highly pressurised liquid that utilizes the ground hydraulic power station to produce promotes piston up-down, just can finish the oil recovery task.
The beneficial effects of the utility model are: the utility model does not have changement, takes the ground changement to change the power fluid flow direction, promotes reciprocating motion of the pistons, so the utility model is simple in structure, the whole efficiency height has energy-saving effect; Changement breaks down when needing repairing, and just can finish the maintenance of changement on ground.When having overcome the maintenance of double-action hydraulic piston pump, must play the shortcoming that pump causes stopping production.Another advantage is that the utility model adopts weary power fluid and the shared fluid passage of output liquid, reduces by a pipeline.Reduce the probability that pipeline causes the accident in the down-hole; And reduced the difficulty of construction of mounting shaft underground pipelines.
Description of drawings
Accompanying drawing 1 is the hydraulic well pump structural representation.Cooperate scheme of installation in the down-hole with sleeve pipe, packet, and expression power fluid promotion piston moves downward.
Accompanying drawing 2 is hydraulic well pump structural representations, and the expression power fluid promotes piston and moves upward.
The indicated direction of solid arrow is the direction that power fluid and weary power fluid flow among the figure; The indicated direction of dotted arrow is the direction that output liquid flows.Packet (14), sleeve pipe (15) oil pipe (16) do not belong to the utility model protection domain.
Among the figure: 1. go up pump barrel, 2. piston, 3. piston ring, 4. lifting valve, 5. valve ball, 6. valve seat, 7. plunger 8. descends pump barrel, 9. liquid discharging valve, 10. valve ball, 11. feed liquor valves, 12. valve balls, 13. oil reservoirs, 14. packets, 15. sleeve pipes, 16. oil pipes.
Embodiment
Embodiment: see accompanying drawing 1 and accompanying drawing 2.Upper and lower pump barrel (1) (8) internal diameter of hydraulic well pump is 60 millimeters.The length of last pump barrel (1) is 600 millimeters.There is Internal Pipe Thread on last pump barrel (1) top, can be connected with oil pipe (15).There is external pipe thread last pump barrel (1) lower end, and connects a valve seat (6).Valve seat (6) lower thread connects pump barrel (8) down, and following pump barrel (8) lower thread connects a feed liquor valve (10).What feed liquor valve (10) adopted is non-return valve.Valve seat (6) is divided into two pump chambers up and down with pump barrel inside.The length of following pump barrel is 600 millimeters.There is a center hole that cooperates with plunger (7) at valve seat (6) center.Piston (2) is arranged in the last pump barrel (1), 2 road piston rings (3) are arranged between piston (2) and the last pump barrel (1).Piston (2) diameter is 60 millimeters.Piston (2) bottom is connected with plunger (7), and plunger (7) diameter is 42 millimeters, and plunger (7) length is 600 millimeters.Being fixed with liquid discharging valve (9) on pump barrel (8) wall down, on last pump barrel (1) wall, be fixed with lifting valve (4) and liquid discharging valve (9).What lifting valve (4) and liquid discharging valve (9) adopted is non-return valve.The quantity of lifting valve (4) is 2, and the quantity of liquid discharging valve (9) is each 2 up and down.
The utility model working procedure comprises two strokes.Stroke 1 (seeing accompanying drawing 1).High voltage power liquid enters pump barrel by oil pipe (16), promotes piston (2) and moves down.Valve ball (10) on last pump barrel (1) wall is opened, and piston (2) lower liquid flows into annular space between sleeve pipe (15) and the oil pipe (16) by liquid discharging valve (9); Valve ball (10) on following pump barrel (8) wall is opened, and the liquid in the following pump barrel (8) flows into annular space between sleeve pipe (15) and the oil pipe (16) by liquid discharging valve (9), and on lift ground.At this moment, the valve ball (8) of lifting valve (7) is closed, and the valve ball (12) of feed liquor valve (11) is also closed.Stroke 2 (seeing accompanying drawing 2).When ground commutation controlling mechanism commutation, high voltage power liquid is by the annular space between sleeve pipe (15) and the oil pipe (16), and enters piston (2) bottom of pump barrel (1) by lifting valve (4), and promotion piston (2) moves up.At this moment, the valve ball (10) of the liquid discharging valve of upper and lower pump barrel (9) is closed, and the valve ball (12) of feed liquor valve (11) is opened automatically.Output liquid in the oil reservoir (13) flows into pump barrel (8) down by feed liquor valve (11).Because high voltage power liquid alternately enters hydraulic well pump, for hydraulic well pump provides reciprocating power, promote piston (2) to-and-fro motion, the output liquid in the oil reservoir (13) is given rise to ground.The effect of packet (14) is that hydraulic well pump is fixed in the sleeve pipe (15), in addition, sleeve pipe (15) inner high voltage liquid and oil reservoir (13) output liquid is isolated.
Claims (5)
1, a kind of hydraulic well pump, by pump barrel (1) (8), piston (2), lifting valve (4), liquid discharging valve (9), feed liquor valve (12) is formed, there is the screw thread that is connected with oil pipe (16) on last pump barrel (1) top, there is feed liquor valve (12) following pump barrel (8) lower end, feed liquor valve (12) adopts ball valve, it is characterized in that: go up between pump barrel (1) and the following pump barrel (8) and be fixed with valve seat (6), valve seat (6) is divided into two chambers with pump barrel inside, the internal diameter of pump barrel (1) (8) is between the 20-90 millimeter, the length of last pump barrel (1) is between the 200-8000 millimeter, the length of following pump barrel (8) is between the 200-8000 millimeter, piston (2) is arranged in the last pump barrel (1), piston (2) diameter is between the 20-90 millimeter, piston (2) bottom is connected with plunger (7), and plunger (7) diameter is between the 20-90 millimeter, and plunger (7) length is between the 200-8000 millimeter, being fixed with liquid valve (9) on pump barrel (8) wall down, on last pump barrel (1) wall, be fixed with lifting valve (4) and liquid discharging valve (9).
2, hydraulic well pump as claimed in claim 1 is characterized in that: what described lifting valve (4) and liquid discharging valve (9) adopted is non-return valve.
3, hydraulic well pump as claimed in claim 1 is characterized in that: what described lifting valve (4) and liquid discharging valve (9) adopted is unidirectional guiding valve.
4, as claim 1 or 2 or 3 described hydraulic well pumps, it is characterized in that: upward the lifting valve (4) on pump barrel (1) wall or the quantity of liquid discharging valve (9) are 2.
5, as claim 1 or 2 or 3 described hydraulic well pumps, it is characterized in that: between piston (2) and the last pump barrel (1) piston ring (3) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520019627 CN2782986Y (en) | 2005-05-09 | 2005-05-09 | Hydraulic oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520019627 CN2782986Y (en) | 2005-05-09 | 2005-05-09 | Hydraulic oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2782986Y true CN2782986Y (en) | 2006-05-24 |
Family
ID=36767972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520019627 Expired - Fee Related CN2782986Y (en) | 2005-05-09 | 2005-05-09 | Hydraulic oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2782986Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782060B (en) * | 2009-01-19 | 2012-08-22 | 莫比森(北京)石油天然气技术开发有限公司 | Hydraulic oil pump |
| CN103423135A (en) * | 2012-05-14 | 2013-12-04 | 崔迺林 | Hydraulic drive oil pump |
-
2005
- 2005-05-09 CN CN 200520019627 patent/CN2782986Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782060B (en) * | 2009-01-19 | 2012-08-22 | 莫比森(北京)石油天然气技术开发有限公司 | Hydraulic oil pump |
| CN103423135A (en) * | 2012-05-14 | 2013-12-04 | 崔迺林 | Hydraulic drive oil pump |
| CN103423135B (en) * | 2012-05-14 | 2016-02-17 | 崔迺林 | Hydraulic drive oil pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI ZHONGMAN PETROLEUM AND NATURAL GAS GROUP Free format text: FORMER OWNER: HAN XINGHUA Effective date: 20071228 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20071228 Address after: No. 707 Zhang Yang Road, 35, Shanghai. Zip code: 200120 Patentee after: Shanghai Zhongman Petroleum and Natural Gas Group Co., Ltd. Address before: Renqiu Institute of oil production technology, Hebei 062552, China Patentee before: Han Xinghua |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060524 Termination date: 20100509 |