CN102108847A - Dual well balance type hydraulic pumping unit and working method thereof - Google Patents
Dual well balance type hydraulic pumping unit and working method thereof Download PDFInfo
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- CN102108847A CN102108847A CN2011100085542A CN201110008554A CN102108847A CN 102108847 A CN102108847 A CN 102108847A CN 2011100085542 A CN2011100085542 A CN 2011100085542A CN 201110008554 A CN201110008554 A CN 201110008554A CN 102108847 A CN102108847 A CN 102108847A
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Abstract
The invention discloses a dual well balance type hydraulic pumping unit and a working method thereof. A hydraulic control reversing valve plug is arranged in a hydraulic control reversing valve outer tube; a reversing control pipeline is arranged in the hydraulic control reversing valve plug; two ends of the reversing control pipeline are connected with hydraulic cylinders on the left and right sides; the middle of the hydraulic control reversing valve outer tube is provided with two hydraulic pump mouths which are communicated with hydraulic pipelines on the left and right sides; the other ends of the hydraulic pipelines on the left and right sides are connected with the hydraulic cylinders on the left and right sides; large pistons are connected with long piston rods in the hydraulic cylinders on the left and right sides, and a check valve is arranged between each large piston and each long piston rod; the hydraulic cylinders are in threaded connection with well mouth flanges; the two hydraulic cylinders are connected through a balance pipeline; rod cavities of the two hydraulic cylinders are filled with oil; drain cavities are arranged at the lower ends of the rod cavities of the two hydraulic cylinders, and are connected with drain oil-return pipelines; a high pressure oil supply pump is connected between two valves of the balance pipeline; and a displacement sensor is arranged at the upper end of the hydraulic cylinder on the right side.
Description
One, technical field: the present invention relates to the production technology of oil field high density oil well, especially a kind of twin-well balanced hydraulic oil extractor and method of work.
Two, 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.
Three, summary of the invention: a kind of twin-well balanced hydraulic oil extractor and the method for work that the purpose of this invention is to provide the mutual balance of roofbolt weight dependence hydraulic line between two wells, it has overcome the shortcoming that other technology exists, the object of the present invention is achieved 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.
Four, description of drawings: Fig. 1 is a kind of structural representation of twin-well balanced hydraulic oil extractor, 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
Five, 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 big piston 5 and the long-term job stopper rod 8 one way valve 6 is installed.
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 5, method of work of the present invention: long-term job stopper rod lower end links to each other with sucker rod, close the valve on the left side balance pipeline 9, open the right side valve, start high pressure fluid infusion pump 11, hydraulic oil promotes to move on the right hand piston, when moving to top dead centre on the right hand piston, liquid controlled reversing valve core 1 moves to left, the hydraulic pressure pumping hole is communicated with right side hydraulic line 3, and hydraulic oil enters in the right side hydraulic cylinder 4, and left side hydraulic line 3 is communicated with the tank drainback mouth, open the valve on the left side balance pipeline 9, open hydraulic pump, hydraulic oil enters in the right side hydraulic cylinder 4, and right hand piston moves down, move on the left hand piston simultaneously, when moving to top dead centre on the left hand piston, liquid controlled reversing valve core 1 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 10 and gets back to fuel tank through unloading, and this part liquid that leaks out is regularly by in high pressure fluid infusion pump 11 injected systems; Two groups of hydraulic oil pumps in above-mentioned by turns, the duty of high pressure fluid infusion pump is all by computer control.
Claims (5)
1. twin-well balanced hydraulic oil extractor, 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. a kind of twin-well balanced hydraulic oil extractor according to claim 1 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. a kind of twin-well balanced hydraulic oil extractor according to claim 1, 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. a kind of twin-well balanced hydraulic oil extractor according to claim 1 is characterized in that: connecting high pressure fluid infusion pump (11) in the middle of two valves of balance pipeline (9).
5. the method for work of the described a kind of twin-well balanced hydraulic oil extractor of claim 1, it is characterized in that: long-term job stopper rod lower end links to each other with sucker rod, close the valve on the left side balance pipeline (9), open the right side valve, start high pressure fluid infusion pump (11), hydraulic oil promotes to move on the right hand piston, when moving to top dead centre on the right hand piston, liquid controlled reversing valve core (1) moves to left, and the hydraulic pressure pumping hole is communicated with right side hydraulic line (3), hydraulic oil enters in the right side hydraulic cylinder (4), left side hydraulic line (3) is communicated with the tank drainback mouth, opens the valve on the left side balance pipeline (9), opens hydraulic pump, hydraulic oil enters in the right side hydraulic cylinder (4), right hand piston moves down, and moves on the left hand piston simultaneously, when moving to top dead centre on the left hand piston, liquid controlled reversing valve core (1) 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, the power that produces on the fluid pressure effect left piston in the pipeline equals the weight of 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 (10) and gets back to fuel tank through unloading, and this part liquid that leaks out is regularly by in high pressure fluid infusion pump (11) injected system; Two groups of hydraulic oil pumps in above-mentioned by turns, the duty of high pressure fluid infusion pump is all by computer control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100085542A CN102108847A (en) | 2011-01-17 | 2011-01-17 | Dual well balance type hydraulic pumping unit and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100085542A CN102108847A (en) | 2011-01-17 | 2011-01-17 | Dual well balance type hydraulic pumping unit and working method thereof |
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| CN102108847A true CN102108847A (en) | 2011-06-29 |
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| CN2011100085542A Pending CN102108847A (en) | 2011-01-17 | 2011-01-17 | Dual well balance type hydraulic pumping unit and working method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337867A (en) * | 2011-09-15 | 2012-02-01 | 刘学柱 | Hydraulic oil pumping system |
| CN103195397A (en) * | 2013-04-23 | 2013-07-10 | 刘铁军 | Mechanical jack type hydraulic double-well oil pumping machine |
| CN104329060A (en) * | 2014-10-29 | 2015-02-04 | 胜利油田高原石油装备有限责任公司 | Two-well oil extraction hydraulic pumping unit adopting power-assisting oil cylinders and two-well oil extraction method |
| CN105257259A (en) * | 2015-11-14 | 2016-01-20 | 沈阳思达机械设备有限公司 | Mono-hydraulic system twin-well pumping unit |
| CN105909217A (en) * | 2016-06-22 | 2016-08-31 | 杜殿起 | Fully automatic hydraulic oil pumping unit with double cylinders connected in parallel |
| CN111706301A (en) * | 2020-07-13 | 2020-09-25 | 李文斌 | Two-well one-machine automatic reversing hydraulic pumping unit and control system thereof |
| CN113417899A (en) * | 2021-07-22 | 2021-09-21 | 齐齐哈尔和平重工集团有限公司 | Energy-saving hydraulic system applied to hydraulic pumping unit |
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| CN2356162Y (en) * | 1998-11-17 | 1999-12-29 | 刘美堂 | Weighing super low consumption double well oil pumping machine |
| CA2331931A1 (en) * | 2001-01-23 | 2002-07-23 | Wilson Ancizar Betancourt Pareja | The hydraulic pumping unit |
| CN200946492Y (en) * | 2006-06-13 | 2007-09-12 | 刘富春 | Double well hydraulic oil pump unit |
| CN201013573Y (en) * | 2007-01-22 | 2008-01-30 | 崔钢都 | Permanent magnetism synchronous non-gear-wheel driving screw pump type oil production machine |
| CN101307685A (en) * | 2008-07-09 | 2008-11-19 | 丁长良 | Long stroke hydraulic pumping unit |
| CN201588602U (en) * | 2009-12-07 | 2010-09-22 | 烟台大学 | Energy-saving hydraulic oil pumping unit |
| CN201661282U (en) * | 2010-04-28 | 2010-12-01 | 陈万仁 | Hydraulic energy-saving multi-well oil pumping unit |
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2011
- 2011-01-17 CN CN2011100085542A patent/CN102108847A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2356162Y (en) * | 1998-11-17 | 1999-12-29 | 刘美堂 | Weighing super low consumption double well oil pumping machine |
| CA2331931A1 (en) * | 2001-01-23 | 2002-07-23 | Wilson Ancizar Betancourt Pareja | The hydraulic pumping unit |
| CN200946492Y (en) * | 2006-06-13 | 2007-09-12 | 刘富春 | Double well hydraulic oil pump unit |
| CN201013573Y (en) * | 2007-01-22 | 2008-01-30 | 崔钢都 | Permanent magnetism synchronous non-gear-wheel driving screw pump type oil production machine |
| CN101307685A (en) * | 2008-07-09 | 2008-11-19 | 丁长良 | Long stroke hydraulic pumping unit |
| CN201588602U (en) * | 2009-12-07 | 2010-09-22 | 烟台大学 | Energy-saving hydraulic oil pumping unit |
| CN201661282U (en) * | 2010-04-28 | 2010-12-01 | 陈万仁 | Hydraulic energy-saving multi-well oil pumping unit |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337867A (en) * | 2011-09-15 | 2012-02-01 | 刘学柱 | Hydraulic oil pumping system |
| CN102337867B (en) * | 2011-09-15 | 2014-12-10 | 刘学柱 | Hydraulic oil pumping system |
| CN103195397A (en) * | 2013-04-23 | 2013-07-10 | 刘铁军 | Mechanical jack type hydraulic double-well oil pumping machine |
| CN103195397B (en) * | 2013-04-23 | 2016-01-20 | 刘铁军 | Mechanical jack type hydraulic pressure twin-well oil-pumping machine |
| CN104329060A (en) * | 2014-10-29 | 2015-02-04 | 胜利油田高原石油装备有限责任公司 | Two-well oil extraction hydraulic pumping unit adopting power-assisting oil cylinders and two-well oil extraction method |
| CN105257259A (en) * | 2015-11-14 | 2016-01-20 | 沈阳思达机械设备有限公司 | Mono-hydraulic system twin-well pumping unit |
| CN105909217A (en) * | 2016-06-22 | 2016-08-31 | 杜殿起 | Fully automatic hydraulic oil pumping unit with double cylinders connected in parallel |
| CN111706301A (en) * | 2020-07-13 | 2020-09-25 | 李文斌 | Two-well one-machine automatic reversing hydraulic pumping unit and control system thereof |
| CN113417899A (en) * | 2021-07-22 | 2021-09-21 | 齐齐哈尔和平重工集团有限公司 | Energy-saving hydraulic system applied to hydraulic pumping unit |
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Application publication date: 20110629 |