CN202250658U - Special hydraulic-driving pressure testing pump for oil wells - Google Patents
Special hydraulic-driving pressure testing pump for oil wells Download PDFInfo
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- CN202250658U CN202250658U CN2011203075745U CN201120307574U CN202250658U CN 202250658 U CN202250658 U CN 202250658U CN 2011203075745 U CN2011203075745 U CN 2011203075745U CN 201120307574 U CN201120307574 U CN 201120307574U CN 202250658 U CN202250658 U CN 202250658U
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- plunger
- pump
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- hydraulic
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Abstract
The utility model relates to a special hydraulic-driving pressure testing pump for oil wells, belonging to the field of the class of pumps. The special hydraulic-driving pressure testing pump for oil wells comprises a pump body, hydraulic motors, a crank shaft, plunger sleeves, plungers, a water inlet joint and a water outlet joint, wherein the plungers slide in the plunger sleeves, the water inlet joint is provided with a suction valve, and the water outlet joint is provided with a discharge valve. The left end and the right end of the pump body are symmetrically provided with a pair of hydraulic motors, and pairs of plunger sleeves and plungers sliding in the plunger sleeves are arranged in the pump body. The middle of each pair of plungers is provided with a piston and a moving body, and the plungers are fixedly connected with the moving body. The piston installed on the crank shaft is sheathed in the moving body, the piston is driven by the crank shaft to move up and down along the moving body and drive the moving body and the plunger to integrally move horizontally left and right, and the reciprocating motion of the plunger in the plunger sleeve is realized. The special hydraulic-driving pressure testing pump for oil wells has simple structure, small volume, light weight, flexibility and convenience for carrying and high pressure, the weight is only about 150kg, and the maximum working pressure is 25MPa. The special hydraulic-driving pressure testing pump for oil wells is suitable for water injection and pressure testing on various occasions of oilfield underground.
Description
Technical field
The utility model relates to a kind of pump, specifically a kind of special-purpose hydraulic test pump of hydraulic driving oil well that is used for the oil-field flooding pressure testing.
Background technique
We know that the oil field is in exploration and exploitation, and a lot of occasions need the water filling pressure testing.As oil pipe pour water, pressure testing; Oil field well separate layer fracturing, separate layer acid treatment, water filling when bridging plug is beaten in the formation testing by layer construction, pressure testing; Well-flushing, well workover, water filling when making packet, pressure testing; Completion, play water filling when giving up, pressure testing; Or the like.At present, what generally use on the oil field is special-purpose pump truck such as cementing truck, accomplishes the operations in above-mentioned occasion and the well workover process.The cementing truck structure is huge, and cost is high, very flexible, and transportation, user cost are also big, and some occasion is suitable for, can not uses.And use common plunger pump to be mostly to pass through linkage mechanism at present by bent axle at oil field operation, and be converted into the plunger to-and-fro motion in the plunger bushing to rotatablely moving of bent axle, suck liquid through suction valve, through the expulsion valve drain.It is mainly used in oil field operation, and is also inapplicable for the water filling pressure testing of above-mentioned multiple occasion.
Summary of the invention
Summary of the invention
The utility model technical problem to be solved is the deficiency that overcomes above-mentioned existing technology, provides a kind of simple in structure, and volume is little, in light weight; Discharge capacity is big; Pressure is high, and carrying flexibly, conveniently is applicable to the special-purpose hydraulic test pump of hydraulic driving oil well of multiple occasion water filling pressure testing in the oilfield downhole operation
The technological scheme that the utility model solves the problems of the technologies described above employing is: the special-purpose hydraulic test pump of a kind of hydraulic driving oil well; The water output connector that it comprises the pump housing, oil hydraulic motor, bent axle, plunger bushing and slides on the water supply connector that has suction valve of the interior plunger of plunger bushing, attachment post plug sleeve and have expulsion valve; It is characterized in that: the pump housing is rack-mount, and the right ends of the pump housing is symmetrically installed with a pair of oil hydraulic motor, is provided with paired plunger bushing in the pump housing and slides on the plunger in the plunger bushing; Be provided with a piston and a moving body in the middle of every pair of plunger; Plunger is fixedly connected with moving body, is set with piston in the moving body, and piston is installed on the bent axle.
The utility model also can be realized through following measure: be provided with the plunger bushing of two pairs of different sizes and the plunger that matches in the pump housing and have the water supply connector of suction valve and have the water output connector of expulsion valve.Be provided with the pilot seal circle in the plunger bushing, and fastening through nut.Support is provided with a water inlet manifold and connects each water supply connector, and outfall sewer connects each water output connector.Water inlet manifold is a bushing type, and the intake pipe that the connection small dimension has the water supply connector of suction valve is located in the water inlet manifold.Be connected with pressure gauge, pressure relief valve and manual modulation valve on the outfall sewer.Water inlet manifold is provided with control switch.
The beneficial effect of the utility model is; Owing to adopt oil hydraulic motor to drive the plunger to-and-fro motion in plunger bushing respectively of different size; The liquid that forms two kinds of different size pressure sucks and the liquid discharge; Can reasonably distribute the high and low pressure water source, the needs of satisfy the quick water filling of oil pipe, suppressing fast.Against existing technologies, the utility model is simple in structure, and volume is little, in light weight, only has about 150Kg; Carrying is flexible, convenient, and discharge capacity is big, and maximum per hour discharge capacity reaches 28 sides; Pressure is high, and Maximum operating pressure 25Mpa is applicable to the multiple occasion water filling pressure testing of down-hole, oil field.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the structural representation of the utility model.
Fig. 2 be among Fig. 1 A-A to cut-away view.
1. supports among the figure, the 2. pump housing, 3. oil hydraulic motor, 4. bent axle, 5. piston, 6. moving body; 7. plunger, 8. plunger bushing, 9. nut, 10. pilot seal circle, 11. suction valves, 12. water supply connectors; 13. expulsion valve, 14. water output connectors, 15. water inlet manifolds, 16. intake pipes, 17; Switch, 18. outfall sewers, 19. manual modulation valves, 20. pressure gauges, 21. pressure relief valves.
Embodiment
From Fig. 1, Fig. 2, can find out; The special-purpose hydraulic test pump of a kind of hydraulic driving oil well, the water output connector 14 that it comprises the pump housing 2, oil hydraulic motor 3, bent axle 4, plunger bushing 8 and slides on the water supply connector that has suction valve 11 12 of plunger 7 in the plunger bushing 8, attachment post plug sleeve 8 and have expulsion valve 13.Two oil hydraulic motors 3 rotate through bent axle laced belt dynamic crankshaft 4, and oil hydraulic motor 3 can be done power source with the hydraulic-pressure pump of well repairing machine and tractor hoist.Plunger 7 to-and-fro motion in plunger bushing 8, fluid gets in the plunger bushing 8 through suction valve 11 suction backs, and plunger 7 to-and-fro motion compressing and converting are high pressure water, get into outfall sewer 18 through expulsion valve 13.Suction valve 11 is one-way valves with expulsion valve 13, guarantees the unidirectional blocking of pipeline.
From figure l, Fig. 2, it can also be seen that the utility model pump housing 2 is installed on the support 1, the right ends of the pump housing 2 is symmetrically installed with a pair of oil hydraulic motor 3; Be provided with paired plunger bushing 8 in the pump housing 2 and slide on the plunger 7 in the plunger bushing; Be provided with a piston 5 and a moving body 6 in the middle of every pair of plunger 7, plunger 7 is fixedly connected with moving body 6, is set with piston 5 in the moving body 6; Piston 5 is installed on the bent axle 4; Move up and down along moving body 6 by bent axle 4 drives, and drive moving body 6, plunger 7 integral level move left and right, realize plunger 7 to-and-fro motion in plunger bushing 8.
From Fig. 2, it can also be seen that, be provided with pilot seal circle 10 in the utility model plunger bushing 8, and fastening through nut 9.Pilot seal circle 10 is combined seal rings, and stable performance is wear-resisting.Plunger 7 slides reliable operation along pilot seal circle 10.
The utility model support 1 is provided with a water inlet manifold 15 and connects each water supply connector 12, and water inlet manifold 15 is a bushing type, and the intake pipe 16 that the connection small dimension has the water supply connector of high pressure suction valve is located in the water inlet manifold 15.Water inlet manifold 15 is provided with the low pressure suction valve water inlet in the big specification water supply connector of control switch 17 controls.During water filling, open control switch 17, all intake pipes 16 of water inlet manifold 15 absorb water simultaneously, carry out quick water filling; After quick water filling is accomplished, closing control switch 17, the intake pipe that connects the small dimension water supply connector absorbs water all the time, forms automatic draining, exhaust in the big specification plunger bushing, and big specification plunger is the motion of idling lotus in plunger bushing, guarantees its safe operation.
Also be provided with an outfall sewer 18 on the utility model support l and connect each water output connector 14.Be connected with pressure gauge 20, pressure relief valve 21 and manual modulation valve 19 on the outfall sewer 18.Pressure gauge 20 is used for the complete monitoring water filling and suppresses pressure: pressure relief valve 21 is set the safety pressure values, surpasses safety pressure, just draining automatically, exhaust; Manual modulation valve 19 has three functions, wherein can limit safety pressure, Maximum operating pressure, experimental pressure.
The utility model adopts oil hydraulic motor to drive plunger to-and-fro motion in plunger bushing of different size.Oil hydraulic motor can be done power source with the hydraulic-pressure pump of well repairing machine and tractor hoist.The utility model can be installed on well repairing machine and the tractor hoist, and well workover not electricity consumption of scene guarantees availablely at any time, guarantees job scheduling.The liquid of the plunger of two kinds of different sizes to-and-fro motion in plunger bushing formation different size pressure sucks and liquid is discharged, and can reasonably distribute the high and low pressure water source, the needs of satisfy the quick water filling of oil pipe, suppressing fast.The utility model is simple in structure, and volume is little, in light weight, only has about 150Kg, and carrying is flexible, convenient, and discharge capacity is big, and maximum per hour discharge capacity reaches 28 sides, and pressure is high, and Maximum operating pressure 25Mpa is applicable to the multiple occasion water filling pressure testing of down-hole, oil field.
Claims (7)
1. the special-purpose hydraulic test pump of a hydraulic driving oil well; The water output connector that it comprises the pump housing, oil hydraulic motor, bent axle, plunger bushing and slides on the water supply connector that has suction valve of the interior plunger of plunger bushing, attachment post plug sleeve and have expulsion valve; It is characterized in that: the pump housing is rack-mount, and the right ends of the pump housing is symmetrically installed with a pair of oil hydraulic motor, is provided with paired plunger bushing in the pump housing and slides on the plunger in the plunger bushing; Be provided with a piston and a moving body in the middle of every pair of plunger; Plunger is fixedly connected with moving body, is set with piston in the moving body, and piston is installed on the bent axle.
2. according to the special-purpose hydraulic test pump of the described hydraulic driving oil well of claim l, it is characterized in that being provided with the plunger bushing of two pairs of different sizes and the plunger that matches in the said pump housing and have the water supply connector of suction valve and have the water output connector of expulsion valve.
3. according to the special-purpose hydraulic test pump of the described hydraulic driving oil well of claim l, it is characterized in that being provided with in the said plunger bushing pilot seal circle, and fastening through nut.
4. according to the special-purpose hydraulic test pump of the described hydraulic driving oil well of claim l, it is characterized in that said support is provided with a water inlet manifold and connects each water supply connector, outfall sewer connects each water output connector.
5. the special-purpose hydraulic test pump of hydraulic driving oil well according to claim 4 is characterized in that said water inlet manifold is a bushing type, and the intake pipe that the connection small dimension has the water supply connector of suction valve is located in the water inlet manifold.
6. the special-purpose hydraulic test pump of hydraulic driving oil well according to claim 4 is characterized in that being connected with on the said outfall sewer pressure gauge, pressure relief valve and manual modulation valve.
7. the special-purpose hydraulic test pump of hydraulic driving oil well according to claim 4 is characterized in that said water inlet manifold is provided with control switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203075745U CN202250658U (en) | 2011-08-23 | 2011-08-23 | Special hydraulic-driving pressure testing pump for oil wells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203075745U CN202250658U (en) | 2011-08-23 | 2011-08-23 | Special hydraulic-driving pressure testing pump for oil wells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202250658U true CN202250658U (en) | 2012-05-30 |
Family
ID=46111910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203075745U Expired - Fee Related CN202250658U (en) | 2011-08-23 | 2011-08-23 | Special hydraulic-driving pressure testing pump for oil wells |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202250658U (en) |
-
2011
- 2011-08-23 CN CN2011203075745U patent/CN202250658U/en not_active Expired - Fee Related
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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: 20120530 Termination date: 20130823 |