CN203050644U - Double-balance hydraulic oil pumping device - Google Patents
Double-balance hydraulic oil pumping device Download PDFInfo
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- CN203050644U CN203050644U CN 201320026881 CN201320026881U CN203050644U CN 203050644 U CN203050644 U CN 203050644U CN 201320026881 CN201320026881 CN 201320026881 CN 201320026881 U CN201320026881 U CN 201320026881U CN 203050644 U CN203050644 U CN 203050644U
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- hydraulic cylinder
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Abstract
The utility model provides a double-balance hydraulic oil pumping device and relates to the production technical field of oil fields and oil wells. A hydraulic control reversing valve core is arranged in a hydraulic control reversing valve outer pipe, a reversing control pipeline is arranged in the hydraulic control reversing valve core, and two ends of the reversing control pipeline are respectively connected with a left hydraulic cylinder and a right hydraulic cylinder. Two hydraulic pump openings are arranged in the middle of the hydraulic control reversing valve outer pipe and respectively communicated with a left hydraulic pipeline and a right hydraulic pipeline, and the other end of the left hydraulic pipeline and the other end of the right hydraulic pipeline are respectively connected with the left hydraulic cylinder and the right hydraulic cylinder. The hydraulic cylinders are in threaded connection with wellhead flanges, the two hydraulic cylinders are connected through balance pipelines, rod end chambers of the two hydraulic cylinders are filled with oil, drainage cavities are arranged at the lower ends of the rod end chambers of the two hydraulic cylinders, and the drainage cavities are connected with drainage oil return pipelines. A high-pressure fluid infusion pump is connected between two valves in the balance pipelines. A displacement sensor is arranged at the upper end of the right hydraulic cylinder.
Description
Technical field: the utility model relates to the production technology of oilfield, especially two balanced hydraulic oil rigs.
Background technology: most of oil well adopts oil pumper exploitation a bite oil well in the oilfield exploitation, and for the high density well site, so not only hold facility is many, and the well site area also requires bigger, and energy consumption and equipment cost are also very high simultaneously.
The twin-well balanced oil extractor is also arranged at present on probation, it mainly adopts the twin-well mechanical connection, because the distance between the well head is indefinite, so the Installation and Debugging difficulty is very big; Stroke is less simultaneously, can't satisfy the need of work of big stroke low jig frequency.
Summary of the invention: the purpose of this utility model provides two balanced hydraulic oil rigs of the mutual balance of roofbolt weight dependence hydraulic line between two wells, it has overcome the shortcoming that other technology exists, the purpose of this utility model is to realize like this, it is by hydraulic control reversing valve core, the pilot operated directional control valve outer tube, hydraulic line, hydraulic cylinder, big piston, one way valve, displacement transducer, the long-term job stopper rod, the balance pipeline, unload and drain back to oil pipeline, high pressure fluid infusion pump, well head adpting flange and commutation control pipeline are formed by connecting, the liquid controlled reversing valve core is installed in the pilot operated directional control valve outer tube, commutation control pipeline is arranged in the liquid controlled reversing valve core, and the two ends of commutation control pipeline are connected with the hydraulic cylinder of the left and right sides respectively; Two hydraulic pressure pumping holes are being set in the centre of pilot operated directional control valve outer tube, and two hydraulic pressure pumping holes are communicated with the hydraulic line of the left and right sides respectively, and the other end of the hydraulic line of the left and right sides is connected with the hydraulic cylinder of the left and right sides respectively; Big piston is connected with the long-term job stopper rod in the hydraulic cylinder of the left and right sides, between big piston and the long-term job stopper rod one way valve is installed; Hydraulic cylinder is threaded with wellhead flange, connects with the balance pipeline between two hydraulic cylinders, and the rod chamber of two hydraulic cylinders is full of fluid, and Lou chamber is unloaded in the rod chamber lower end of two hydraulic cylinders, unloads Lou the chamber and drains back to oil pipeline and be connected with unloading; In the middle of two valves of balance pipeline, connecting high pressure fluid infusion pump; Displacement transducer is installed in the upper end of right side hydraulic cylinder.
Method of work: long-term job stopper rod lower end links to each other with sucker rod, close the valve on the balance pipeline of left side, open the right side valve, start high pressure fluid infusion pump, hydraulic oil promotes to move on the right hand piston, when moving to top dead centre on the right hand piston, the liquid controlled reversing valve core moves to left, the hydraulic pressure pumping hole is communicated with the right side hydraulic line, and hydraulic oil enters in the hydraulic cylinder of right side, and the left side hydraulic line is communicated with the tank drainback mouth, open the valve on the balance pipeline of left side, open hydraulic pump, hydraulic oil enters in the hydraulic cylinder of right side, and right hand piston moves down, move on the left hand piston simultaneously, when moving to top dead centre on the left hand piston, the liquid controlled reversing valve core moves to right, and left hand piston moves down.Twin-well is finished a stroke; Because the fluid in the balance pipeline is in air-tight state, fluid pressure in the pipeline acts on the weight that the power that produces on the piston equals roofbolt in the well, so, be in high pressure conditions in the pipe always, inevitably there is seepage in this hydraulic oil, this part oil that leaks out drains back to oil pipeline and gets back to fuel tank through unloading, and this part liquid that leaks out is regularly gone in the system by high pressure fluid infusion infusion; Two groups of hydraulic oil pumps in above-mentioned by turns, the duty of high pressure fluid infusion pump is all by computer control.
Meaning of the present invention is: the one, and hold facility is few, and expense is low; The 2nd, energy consumption is low; The 3rd, Installation and Debugging are convenient; The 4th, the well site usable floor area is smaller, saves the soil; The 5th, because stroke is bigger, can satisfy the need of work of big stroke low jig frequency.
Description of drawings: Fig. 1 is the structural representation of two balanced hydraulic oil rigs, among the figure 1, hydraulic control reversing valve core 2, pilot operated directional control valve outer tube 3, hydraulic line 4, hydraulic cylinder 5, big piston 6, one way valve 7, displacement transducer 8, long-term job stopper rod 9, balance pipeline 10, unload and drain back to oil pipeline 11, high pressure fluid infusion pump 12, well head adpting flange 13, commutation control pipeline
The specific embodiment: embodiment 1, liquid controlled reversing valve core 1 is installed in pilot operated directional control valve outer tube 2, commutation control pipeline 13 being arranged in liquid controlled reversing valve core 1, the two ends of commutation control pipeline 13 are connected with the hydraulic cylinder 4 of the left and right sides respectively; Two hydraulic pressure pumping holes are being set in the centre of pilot operated directional control valve outer tube 2, and two hydraulic pressure pumping holes are communicated with the hydraulic line 3 of the left and right sides respectively, and the other end of the hydraulic line 3 of the left and right sides is connected with the hydraulic cylinder 4 of the left and right sides respectively.
Embodiment 2, big piston 5 is connected with long-term job stopper rod 8 in the hydraulic cylinder 4 of the left and right sides, between piston 5 and the long-term job stopper rod 8 one way valve 6 is installed greatly.
Embodiment 3, hydraulic cylinder 4 are threaded with wellhead flange 12, connect with balance pipeline 9 between two hydraulic cylinders 4, the rod chamber of two hydraulic cylinders 4 is full of fluid, and Lou chamber is unloaded in the rod chamber lower end of two hydraulic cylinders 4, unloads Lou the chamber and drains back to oil pipeline 10 and be connected with unloading; Displacement transducer 7 is installed in the upper end of right side hydraulic cylinder 4.
Embodiment 4, in the middle of two valves of balance pipeline 9, connecting high pressure fluid infusion pump 11.
Claims (4)
1. two balanced hydraulic oil rigs, it is by hydraulic control reversing valve core (1), pilot operated directional control valve outer tube (2), hydraulic line (3), hydraulic cylinder (4), big piston (5), one way valve (6), displacement transducer (7), long-term job stopper rod (8), balance pipeline (9), unload and drain back to oil pipeline (10), high pressure fluid infusion pump (11), well head adpting flange (12) and commutation control pipeline (13) are formed by connecting, it is characterized in that: liquid controlled reversing valve core (1) is installed in pilot operated directional control valve outer tube (2), commutation control pipeline (13) is arranged in liquid controlled reversing valve core (1), and the two ends of commutation control pipeline (13) are connected with the hydraulic cylinder (4) of the left and right sides respectively; In the centre of pilot operated directional control valve outer tube (2) two hydraulic pressure pumping holes are being set, two hydraulic pressure pumping holes are communicated with the hydraulic line (3) of the left and right sides respectively, and the other end of the hydraulic line of the left and right sides (3) is connected with the hydraulic cylinder (4) of the left and right sides respectively.
2. according to claim 1 pair of balanced hydraulic oil rig, it is characterized in that: big piston (5) is connected with long-term job stopper rod (8) in the hydraulic cylinder (4) of the left and right sides, between big piston (5) and the long-term job stopper rod (8) one way valve (6) is installed.
3. according to claim 1 pair of balanced hydraulic oil rig, it is characterized in that: hydraulic cylinder (4) is threaded with wellhead flange (12), connect with balance pipeline (9) between two hydraulic cylinders (4), the rod chamber of two hydraulic cylinders (4) is full of fluid, Lou chamber is unloaded in the rod chamber lower end of two hydraulic cylinders (4), unloads Lou the chamber and drains back to oil pipeline (10) and be connected with unloading; Displacement transducer (7) is installed in the upper end of right side hydraulic cylinder (4).
4. according to claim 1 pair of balanced hydraulic oil rig is characterized in that: connecting high pressure fluid infusion pump (11) in the middle of two valves of balance pipeline (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320026881 CN203050644U (en) | 2013-01-18 | 2013-01-18 | Double-balance hydraulic oil pumping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320026881 CN203050644U (en) | 2013-01-18 | 2013-01-18 | Double-balance hydraulic oil pumping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203050644U true CN203050644U (en) | 2013-07-10 |
Family
ID=48733609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320026881 Expired - Fee Related CN203050644U (en) | 2013-01-18 | 2013-01-18 | Double-balance hydraulic oil pumping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203050644U (en) |
-
2013
- 2013-01-18 CN CN 201320026881 patent/CN203050644U/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: 20130710 Termination date: 20140118 |