CN104790919A - Automatic reversing hydraulic pumping unit long in stroke - Google Patents
Automatic reversing hydraulic pumping unit long in stroke Download PDFInfo
- Publication number
- CN104790919A CN104790919A CN201510235736.1A CN201510235736A CN104790919A CN 104790919 A CN104790919 A CN 104790919A CN 201510235736 A CN201510235736 A CN 201510235736A CN 104790919 A CN104790919 A CN 104790919A
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- Prior art keywords
- oil
- rod
- pumping unit
- cylinder body
- bearing post
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- 238000005086 pumping Methods 0.000 title claims abstract description 30
- 239000003921 oil Substances 0.000 claims abstract description 80
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 239000002828 fuel tank Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 229920002521 macromolecule Polymers 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000000295 fuel oil Substances 0.000 claims description 2
- 230000033001 locomotion Effects 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 239000010720 hydraulic oil Substances 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 241000191291 Abies alba Species 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Electromagnetic Pumps, Or The Like (AREA)
Abstract
An automatic reversing hydraulic pumping unit long in stroke comprises a cylinder, an automatic reversing mechanism, a flexible connecting rod, a base and a hydraulic station assembly. The automatic reversing mechanism is located inside the cylinder, and two pistons and a piston rod are further arranged inside the cylinder. The lower end of the piston rod is connected with the flexible connecting rod, and the lower end of the flexible connecting rod is connected with a sucker rod to drive the sucker rod to reciprocate vertically. The upper portion of the base is in threaded connection with the lower end of the cylinder, and the lower portion of the base is linked with a Christmas tree through a flange plate. The hydraulic station assembly comprises a motor, an oil pump, a high-pressure oil outlet pipe, a low-pressure oil return pipe, an oil tank and an oil filter and provides hydraulic oil of certain pressure for the hydraulic pumping unit. The automatic reversing mechanism comprises a supporting pillar fixed to the middle of the cylinder, and an electromagnetic directional valve is arranged inside the supporting pillar. Main movement components move linearly and simply in the vertical direction, the long stroke can be achieved, the number of transmission steps is decreased, the overall energy consumption of the pumping unit is substantially lowered, and the service life is long.
Description
Technical field
The present invention relates to a kind of long stroke automatic reverse hydraulic pumping unit, belong to oil tool and equipment technology field.
Background technology
Oil pumper is one of main mining machines of oil and natural gas, and oil pumper performance height is closely related with cost of oil production.Oil pumper belongs to the Surface power drive drive apparatus of rod pumping system, is to form " three chief components taking out system.Oil pumper of a great variety, is mainly divided into beam pumping unit and without the large class of beam pumping unit two.Wherein beam pumping unit can be divided into rear-mounted beam-pumping unit, back-crank pumping unit, double-horsehead pumping unit, swing-rod pumping unit, partially wheel type oil pumping unit etc.Chain transmission type oil pumper, steel rope gearing formula oil pumper, broadband drive type pumping unit etc. can be divided into without beam pumping unit.
The oil pumper generally adopted at present is mainly beam pumping unit.With regard to current oil field at home, in mechanical oil well, beam-pumping unit is still main type.Conventional beam-pumping unit, since birth, experienced by the test in various operating mode and oil field, various region, lasting.It is simple with structure, easy to manufacture, reliability is high, good endurance, easy to maintenance, adapt to the advantage such as field working conditions, in oil recovery machiner, occupy very important status.. but due to the architectural feature of conventional machine, determine its counterbalance effect poor, the clean torque ripple of crank is large, has that negative torque, loading rate are low, inefficiency and a shortcoming such as energy consumption is large, can not adapt to the needs of Deep-lifting Technology of Wells.Therefore, develop novel energy-saving oil pumper and there is very large realistic meaning.
Summary of the invention
The object of the invention is to, providing a kind of take hydraulic pressure as the long stroke pumping unit of power, and guarantee that transmission process is steadily reliable, reduce energy consumption, effectively improve oil pumper operating efficiency, structure is simple, easy to maintenance; To solve the problem that load fluctuation is large, energy consumption is high, space hold is large that existing oil pumper causes because adopting a large amount of mechanical transmission structure.
This long stroke automatic reverse hydraulic pumping unit, comprises cylinder body, automatic reversing mechanism, flexible jointing-rod, base and Hydraulic Station assembly, it is characterized in that: described automatic reversing mechanism is positioned at cylinder body, also has two pistons and piston rod in cylinder body; Piston-rod lower end is connected with flexible jointing-rod, and flexible jointing-rod lower end is connected with sucker rod, drives sucker rod to pump; Base top adopts with cylinder body lower end and is threaded, and base bottom is connected by flange with production tree; Hydraulic Station assembly comprises motor, oil pump, high pressure flowline, low-pressure oil return pipe, fuel tank and oil strainer, for hydraulic pumping unit provides the hydraulic oil of certain pressure.
Automatic reversing mechanism comprises bearing post fixing in the middle part of cylinder body, bearing post center is provided with piston rod, piston rod two ends are provided with piston, solenoid operated directional valve is built-in with in bearing post, solenoid operated directional valve has two holes on cylinder body, for oil-in and oil-out, high pressure flowline, the low-pressure oil return pipe of Hydraulic Station assembly are connected with the oil-in on cylinder body, oil-out respectively; Two oil ducts are also had to communicate with the oil pocket of bearing post both sides respectively in bearing post, communicating pipe is had to communicate with the oil pocket far-end of bearing post both sides respectively outside bearing post, two oil ducts are also connected with solenoid operated directional valve, at the oil pocket end of bearing post both sides, be provided with piston position inductor, piston position inductor and solenoid operated directional valve electrical connection, when piston movement is to oil pocket end, solenoid operated directional valve will exchange the oil duct of turnover oil, thus changes the direction of piston movement.
The center of flexible jointing-rod is wire rope, and periphery is enclosed with macromolecule material.
The present invention's beneficial effect is compared with prior art:
The present invention adopts hydraulic way to make reciprocating motion of the pistons, drive sucker rod, main moving component is all do simple rectilinear motion up and down, longer stroke can be realized, decrease transmission link, the impact that beam pumping unit is moved back and forth when commutating is cushioned, adopt solenoid operated directional valve to improve the reliability of oil pumper simultaneously, because hydraulic system is steadily stressed, the overall energy consumption of oil pumper declines to a great extent, noise reduces, application life is longer, guarantee well head No leakage, meet the environmental requirement of increasingly stringent, overall volume is far smaller than traditional beam pumping unit simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
Fig. 2 is automatic reversing mechanism schematic diagram
In the drawings: 1, cylinder body, 2, automatic reversing mechanism, 3, flexible jointing-rod, 4, base, 5, Hydraulic Station assembly, 6, piston, 7, piston rod, 8, sucker rod, 9, motor, 10, oil pump, 11, high pressure flowline, 12, low-pressure oil return pipe, 13, fuel tank, 14, bearing post, 15, solenoid operated directional valve, 16, oil-in, 17, oil-out, 18, oil duct, 19, oil pocket, 20, piston position inductor, 21, oil strainer, 22, communicating pipe.
Detailed description of the invention
As follows to the detailed description of the invention below in conjunction with accompanying drawing:
In FIG, this long stroke automatic reverse hydraulic pumping unit, comprises cylinder body 1, automatic reversing mechanism 2, flexible jointing-rod 3, base 4 and Hydraulic Station assembly 5, and described automatic reversing mechanism 2 is positioned at cylinder body 1, also has two pistons 6 and piston rod 7 in cylinder body 1; Piston rod 7 lower end is connected with flexible jointing-rod 3, and flexible jointing-rod 3 lower end is connected with sucker rod 8, drives sucker rod 8 to pump; Base 4 top adopts with cylinder body 1 lower end and is threaded, and base 4 bottom is connected by flange with production tree; Hydraulic Station assembly 5 comprises motor 9, oil pump 10, high pressure flowline 11, low-pressure oil return pipe 12, fuel tank 13 and oil strainer 21, for hydraulic pumping unit provides the hydraulic oil of certain pressure.
In fig. 2, automatic reversing mechanism 2 comprises bearing post 14 fixing in the middle part of cylinder body 1, bearing post 14 center is provided with piston rod 7, piston rod 7 two ends are provided with piston 6, solenoid operated directional valve 15 is built-in with in bearing post 14, solenoid operated directional valve 15 has two holes on cylinder body 1, is oil-in 16 and oil-out 17, and high pressure flowline 11, the low-pressure oil return pipe 12 of Hydraulic Station assembly 5 are connected with the oil-in 16 on cylinder body 1, oil-out 17 respectively; Two oil ducts 18 are also had to communicate with the oil pocket of bearing post 14 both sides respectively in bearing post 14, communicating pipe 22 is had to communicate with the oil pocket far-end of bearing post 14 both sides respectively outside bearing post 14, two oil ducts 18 are also connected with solenoid operated directional valve 15, at oil pocket 19 end of bearing post 14 both sides, piston position inductor 20 is installed, piston position inductor 20 and solenoid operated directional valve 15 are electrically connected, when piston 6 moves to oil pocket 19 end, solenoid operated directional valve 15 will exchange the oil duct of turnover oil, thus changes the direction of piston 6 motion.
The center of flexible jointing-rod 3 is wire rope, and periphery is enclosed with macromolecule material.
In work, when piston stroking upward, hydraulic oil is kept straight on from high pressure flowline 11 through oil-in 16, solenoid operated directional valve 15, is entered upper oil cavitie bottom through upper oil duct, the low pressure oil on upper oil cavitie top enters lower oil cavitie bottom through communicating pipe 22, and the oil on lower oil cavitie top is kept straight on through lower oil duct, solenoid operated directional valve 15, oil-out 17, low-pressure oil return pipe 12 get back to fuel tank 13; Piston stroking upward is to oil pocket top, piston position inductor 20 makes solenoid operated directional valve 15 action, hydraulic oil enters lower oil cavitie top from high pressure flowline 11 through oil-in 16, solenoid operated directional valve 15 diagonal, lower oil duct, the low pressure oil of lower oil cavitie bottom enters upper oil cavitie top through communicating pipe 22, and the oil of upper oil cavitie bottom gets back to fuel tank 13 through upper oil duct, solenoid operated directional valve 15 diagonal, oil-out 17, low-pressure oil return pipe 12; Descent of piston is to lower oil cavitie top, and piston position inductor 20 makes solenoid operated directional valve 15 action, and piston is up once again, so moves in circles.
The above is the detailed description of the invention of this invention, above-mentioned illustrating is not construed as limiting flesh and blood of the present invention, person of an ordinary skill in the technical field can make an amendment above-mentioned detailed description of the invention or be out of shape after having read this manual, and does not deviate from the spirit and scope of the invention.
Claims (3)
1. a long stroke automatic reverse hydraulic pumping unit, comprises cylinder body, automatic reversing mechanism, flexible jointing-rod, base and Hydraulic Station assembly, it is characterized in that: described automatic reversing mechanism is positioned at cylinder body, also has two pistons and piston rod in cylinder body; Piston-rod lower end is connected with flexible jointing-rod, and flexible jointing-rod lower end is connected with sucker rod, drives sucker rod to pump; Base top adopts with cylinder body lower end and is threaded, and base bottom is connected by flange with production tree; Hydraulic Station assembly comprises motor, oil pump, high pressure flowline, low-pressure oil return pipe, fuel tank and oil strainer.
2. a kind of long stroke automatic reverse hydraulic pumping unit according to claim 1, it is characterized in that: automatic reversing mechanism comprises bearing post fixing in the middle part of cylinder body, bearing post center is provided with piston rod, piston rod two ends are provided with piston, solenoid operated directional valve is built-in with in bearing post, solenoid operated directional valve has two holes on cylinder body, is oil-in and oil-out, and high pressure flowline, the low-pressure oil return pipe of Hydraulic Station assembly are connected with the oil-in on cylinder body, oil-out respectively; Two oil ducts are also had to communicate with the oil pocket of bearing post both sides respectively in bearing post, communicating pipe is had to communicate with the oil pocket far-end of bearing post both sides respectively outside bearing post, two oil ducts are also connected with solenoid operated directional valve, at the oil pocket end of bearing post both sides, piston position inductor is installed, piston position inductor and solenoid operated directional valve electrical connection.
3. a kind of long stroke automatic reverse hydraulic pumping unit according to claim 1, is characterized in that: the center of flexible jointing-rod is wire rope, and periphery is enclosed with macromolecule material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510235736.1A CN104790919A (en) | 2015-05-12 | 2015-05-12 | Automatic reversing hydraulic pumping unit long in stroke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510235736.1A CN104790919A (en) | 2015-05-12 | 2015-05-12 | Automatic reversing hydraulic pumping unit long in stroke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104790919A true CN104790919A (en) | 2015-07-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510235736.1A Pending CN104790919A (en) | 2015-05-12 | 2015-05-12 | Automatic reversing hydraulic pumping unit long in stroke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104790919A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111485857A (en) * | 2020-05-14 | 2020-08-04 | 李鹏 | Single-cylinder and double-cylinder wellhead type automatic reversing hydraulic pumping unit and hydraulic control method |
Citations (13)
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|---|---|---|---|---|
| US3777491A (en) * | 1972-07-24 | 1973-12-11 | E Bender | Pumping and servicing rig |
| CN2061218U (en) * | 1990-01-20 | 1990-08-29 | 郭振洲 | Long-stroke hydraulic type oil pumping machine |
| CN2370190Y (en) * | 1999-02-10 | 2000-03-22 | 王宏利 | Hydraulic walking beam free oil pump |
| CN201236674Y (en) * | 2008-08-13 | 2009-05-13 | 祝秀琴 | Hydraulic oil-pumping unit |
| US20090194291A1 (en) * | 2008-01-28 | 2009-08-06 | Petro Hydraulic Lift System, L.L.C. | Hydraulic oil well pumping apparatus |
| CN201377308Y (en) * | 2009-02-14 | 2010-01-06 | 谭福明 | Hydraulic oil pumping unit |
| CN201588602U (en) * | 2009-12-07 | 2010-09-22 | 烟台大学 | Energy-saving hydraulic oil pumping unit |
| CN202926293U (en) * | 2012-09-12 | 2013-05-08 | 鞍山红拖轧钢有限公司 | Fully-automatic hydraulic oil pumping machine |
| CN202970633U (en) * | 2011-12-13 | 2013-06-05 | 浙江师范大学 | Full-automatic hydraulic pumping unit |
| CN203702096U (en) * | 2013-11-04 | 2014-07-09 | 刘长年 | Novel beam-free type hydraulic pumping unit |
| CN104329056A (en) * | 2014-08-28 | 2015-02-04 | 王岳 | Hydraulic driving disk-shaped long-stroke pumping unit |
| CN204200185U (en) * | 2014-10-29 | 2015-03-11 | 胜利油田高原石油装备有限责任公司 | Adopt the hydraulic pumping unit of power-assisted oil cylinder |
| CN204738790U (en) * | 2015-05-12 | 2015-11-04 | 天津市仕杰达能源技术开发有限公司 | Long stroke self -commutation hydraulic pumping unit |
-
2015
- 2015-05-12 CN CN201510235736.1A patent/CN104790919A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3777491A (en) * | 1972-07-24 | 1973-12-11 | E Bender | Pumping and servicing rig |
| CN2061218U (en) * | 1990-01-20 | 1990-08-29 | 郭振洲 | Long-stroke hydraulic type oil pumping machine |
| CN2370190Y (en) * | 1999-02-10 | 2000-03-22 | 王宏利 | Hydraulic walking beam free oil pump |
| US20090194291A1 (en) * | 2008-01-28 | 2009-08-06 | Petro Hydraulic Lift System, L.L.C. | Hydraulic oil well pumping apparatus |
| CN201236674Y (en) * | 2008-08-13 | 2009-05-13 | 祝秀琴 | Hydraulic oil-pumping unit |
| CN201377308Y (en) * | 2009-02-14 | 2010-01-06 | 谭福明 | Hydraulic oil pumping unit |
| CN201588602U (en) * | 2009-12-07 | 2010-09-22 | 烟台大学 | Energy-saving hydraulic oil pumping unit |
| CN202970633U (en) * | 2011-12-13 | 2013-06-05 | 浙江师范大学 | Full-automatic hydraulic pumping unit |
| CN202926293U (en) * | 2012-09-12 | 2013-05-08 | 鞍山红拖轧钢有限公司 | Fully-automatic hydraulic oil pumping machine |
| CN203702096U (en) * | 2013-11-04 | 2014-07-09 | 刘长年 | Novel beam-free type hydraulic pumping unit |
| CN104329056A (en) * | 2014-08-28 | 2015-02-04 | 王岳 | Hydraulic driving disk-shaped long-stroke pumping unit |
| CN204200185U (en) * | 2014-10-29 | 2015-03-11 | 胜利油田高原石油装备有限责任公司 | Adopt the hydraulic pumping unit of power-assisted oil cylinder |
| CN204738790U (en) * | 2015-05-12 | 2015-11-04 | 天津市仕杰达能源技术开发有限公司 | Long stroke self -commutation hydraulic pumping unit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111485857A (en) * | 2020-05-14 | 2020-08-04 | 李鹏 | Single-cylinder and double-cylinder wellhead type automatic reversing hydraulic pumping unit and hydraulic control method |
| CN111485857B (en) * | 2020-05-14 | 2023-10-13 | 李鹏 | Single-double-cylinder wellhead type automatic reversing hydraulic pumping unit and hydraulic control method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150722 |
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| WD01 | Invention patent application deemed withdrawn after publication |