CN111411919B - Forced take-off and landing type automatic reversing hydraulic pumping unit and pumping system - Google Patents
Forced take-off and landing type automatic reversing hydraulic pumping unit and pumping system Download PDFInfo
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- CN111411919B CN111411919B CN202010198941.6A CN202010198941A CN111411919B CN 111411919 B CN111411919 B CN 111411919B CN 202010198941 A CN202010198941 A CN 202010198941A CN 111411919 B CN111411919 B CN 111411919B
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- 238000005086 pumping Methods 0.000 title claims abstract description 53
- 239000003921 oil Substances 0.000 claims description 40
- 229910000831 Steel Inorganic materials 0.000 claims description 37
- 239000010959 steel Substances 0.000 claims description 37
- 239000010720 hydraulic oil Substances 0.000 claims description 9
- 230000001174 ascending effect Effects 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 4
- 239000003208 petroleum Substances 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract 1
- 238000005265 energy consumption Methods 0.000 description 5
- 239000003129 oil well Substances 0.000 description 5
- 230000008021 deposition Effects 0.000 description 4
- 238000011010 flushing procedure Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000013585 weight reducing agent 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
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/126—Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
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- 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)
- Elevator Control (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The application belongs to the technical field of petroleum exploitation equipment, and discloses a forced take-off and landing type automatic reversing hydraulic pumping unit and a pumping system, wherein a base is arranged, and an automatic hydraulic control system and a shelf main body are fixedly arranged on the base; the upper end of the base is provided with a shelf main body and an upper platform, the upper platform is sequentially fixed with an upper fixed pulley, a lower fixed pulley block, a weight box pulley and an upper pulley block, the front end of the base is fixed with the lower fixed pulley, and the rear end of the base is fixed with the upper fixed pulley block. The pumping unit has the characteristics of small volume, small weight and convenient maintenance, the stroke length and the stroke speed are convenient to adjust, and the problems that the pumping rod cannot be lowered by the self weight to make a down stroke when the pumping unit encounters serious wax formation and cold recovery of thick oil in the production operation process of an oil field at present are solved, so that a complete power stroke cannot be made, or the pumping unit is lowered too slowly to influence the yield and waste of electric energy.
Description
Technical Field
The application belongs to the technical field of petroleum exploitation equipment, and particularly relates to a forced take-off and landing type automatic reversing hydraulic pumping unit and a pumping system.
Background
At present, all the pumping units in the market have various problems of high energy consumption, large volume, heavy weight, large maintenance engineering amount and the like. Particularly, the existing advanced hydraulic pumping unit has a great weakness that the viscosity of the thick oil is too high in the cold oil extraction process of the thick oil; or the oil well with serious wax formation directly causes the wax blocking of the oil rod, the oil rod is subjected to high viscosity of thick oil or the wax blocking during the down stroke after the up stroke is finished, and the oil rod cannot be lowered and blocked due to the buoyancy generated by the oil rod; because the existing various pumping units including the hydraulic pumping unit have the downstroke which is reduced by the self weight of the pumping rod, the problem that the downstroke is slow or even not reduced due to the self weight reduction of the pumping rod cannot be solved, and finally, the complete power stroke cannot be realized or completed quickly, so that the complete power time is directly prolonged, and even the production cannot be operated normally. The well with serious wax deposition can solve the problems by well flushing or well repairing, the well flushing and well repairing operation consumes time, has huge economic expense, pollutes the environment and delays the output of the oil field. In addition, the motor power is high for 24 hours in the operation of the existing pumping unit, the electric energy consumption is high, and the service life of the continuous operation motor of the equipment is short.
Through the above analysis, the problems and defects existing in the prior art are as follows:
(1) The existing pumping unit has the problems of high energy consumption, large volume, large weight and large maintenance engineering amount.
(2) The oil well of thick oil cold recovery and wax deposition can not solve the problems that the self weight of the sucker rod is reduced and the sucker rod is slow or even not reduced, and finally, the complete power stroke can not be realized or can not be completed, and the yield is affected.
(3) The well with serious wax deposition can solve the problems by well flushing or well repairing, the well flushing and well repairing operation consumes time, has large economic expense, pollutes the environment and delays the output of the oil field
(4) The existing pumping unit has the disadvantages of high motor power, high working electric energy consumption for 24 hours, continuous working of equipment and short service life of the motor.
The difficulty of solving the problems and the defects is as follows: the prior various pumping units cannot apply force to the downstroke, and cannot realize strong downstroke manufacture. When the oil well with serious thickened oil cold recovery and wax precipitation is produced, the force applied to the downstroke is not reduced only by the weight of the sucker rod, and the conditions that the thickened oil viscosity is extremely high and the wax precipitation seriously generates buoyancy to the sucker rod, so that the sucker rod is slowly reduced or even not reduced are met, so that the oil field yield is low.
The meaning of solving the problems and the defects is as follows: the force is applied to the downstroke, the problems can be solved by forcibly making the downstroke, the yield can be greatly improved by still fast and normally working when the thickened oil is cold-produced and wax deposition is serious, and the well repairing frequency is reduced.
Disclosure of Invention
In order to solve the problems in the prior art, the application provides a forced lifting type automatic reversing hydraulic pumping unit.
The application is realized in such a way that the forced lifting type automatic reversing hydraulic pumping unit is provided with a base, and an automatic hydraulic control system and a shelf main body are fixedly arranged on the base;
the upper end of the base is provided with a shelf main body and an upper platform, the upper platform is sequentially fixed with an upper fixed pulley, a lower fixed pulley block, a weight box pulley and an upper pulley block, the front end of the base is fixed with the lower fixed pulley, and the rear end of the base is fixed with the upper fixed pulley block; a vertical hydraulic cylinder is fixed in a frame main body in the center of the base, and an uplink pulley block and a downlink pulley block are arranged at the top of the vertical hydraulic cylinder; the base is also provided with an automatic control hydraulic system, and the hydraulic control device is connected with the vertical hydraulic cylinder.
Further, the hydraulic control device is provided with a sucker rod clamping head in a matching way, the sucker rod clamping head is provided with an uplink steel wire belt, and the uplink steel wire belt bypasses an uplink fixed pulley block around the front and the rear of the upper platform and is fixed on the weight box; the bottom of the weight box is wound around an upward fixed pulley on the base and an upward and downward movable pulley block on the hydraulic cylinder by a steel wire belt and is fixed on the tensioner.
Further, a down fixed pulley is arranged at the left lower part of the base, and an up fixed pulley is arranged at the right lower part of the base.
Further, the front end of the upper platform is fixed with a descending guide fixed pulley, and a hydraulic control system is arranged on the hydraulic oil cylinder.
Further, one end of the uplink steel wire belt is fixed on the weight box by a fixed pulley block which bypasses the front and the rear of the upper platform through a pumping rod clamping head, and the other end of the uplink steel wire belt is fixed on the tensioner by the weight box by bypassing an uplink fixed pulley on the base and an up-and-down movable pulley block on the hydraulic cylinder.
Further, a rail and a pulley are mounted on the base.
Further, the hydraulic control device is also connected with a hydraulic accumulator, and the hydraulic accumulator is arranged at the outlet of the hydraulic pump.
Further, the descending steel wire belt is fixed on the tensioner by the descending fixed pulley at the front end of the base, the descending fixed pulley of the upper platform and the ascending and descending pulley block on the hydraulic cylinder from the pumping rod clamping head.
Another object of the present application is to provide a hydraulic pumping system in which the forced take-off and landing type automatic reversing hydraulic pumping unit is installed.
By combining all the technical schemes, the application has the following positive effects and advantages:
(1) Compared with the existing hydraulic pumping unit, the application has the characteristics of small volume, small weight and convenient maintenance, and the stroke length and the stroke speed are convenient to adjust, in particular to solve the technical problem that the existing pumping unit cannot realize strong manufacture of the downstroke when suffering from serious wax formation and cold recovery of thick oil in the production operation process of an oil field.
(2) The power of the motor is less than twice of that of the traditional pumping unit, the utilization of the energy accumulator directly reduces the working time of the motor, and the service life of the motor is prolonged.
(3) The forced lifting method solves the problems that the sucker rod is slowly lowered or can not be lowered in the working process of various existing pumping units when the sucker rod is in a down stroke, and particularly in the exploitation process of an oil well with heavy oil cold exploitation and severe wax formation, the working stroke is accelerated, and the yield is greatly improved.
(4) On the oil well with serious wax formation, the additional losses of environmental pollution, yield reduction, maintenance cost increase and the like caused by the well cleaning and well repairing operations required by the wax clip are avoided.
(5) The production efficiency and the yield of the oil field are improved, and four times of electric energy and unnecessary maintenance cost are saved. The energy accumulator can replace the motor to supply oil to the system for ten minutes when the motor works for ten minutes, at the moment, the motor does not consume electricity, and the motor works again after stopping for ten minutes.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a forced lifting type automatic reversing hydraulic pumping unit provided by an embodiment of the application.
Fig. 2 is a schematic diagram of a front structure of a forced lifting type automatic reversing hydraulic pumping unit according to an embodiment of the present application.
Fig. 3 is a top view structural diagram of a forced lifting type automatic reversing hydraulic pumping unit provided by an embodiment of the application.
In the figure: 1. a sucker rod chuck; 2. a first upward fixed pulley; 3. a counterweight fixed pulley; 4. an uplink pulley block; 5. a second upward fixed pulley; 6. a first downward fixed pulley; 7. a second downstream fixed pulley; 8. an upper and lower movable pulley block; 9. a hydraulic cylinder; 10. a weight box; 11. a first upstream steel wire belt; 12. a descending steel wire belt; 13 a base; 14. a top platform; 15. a counterweight steel wire belt tensioner; 16. a downlink steel wire belt tensioner; 17. an upstream steel wire belt tensioner; 18. a second upstream steel wire belt; 19. a counterweight steel wire belt; 20. an automatic hydraulic control device; 21. a track.
Detailed Description
The present application will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
Aiming at the problems existing in the prior art, the application provides a forced lifting type automatic reversing hydraulic pumping unit, and the application is described in detail below with reference to fig. 1 to 3.
The forced lifting type automatic reversing hydraulic pumping unit comprises an automatic hydraulic control system, a hydraulic lifting oil cylinder, a fixed pulley, an upper and lower movable pulley block 8, a first uplink steel wire belt 11, a second uplink steel wire belt 18, a downlink steel wire belt 12 and a weight box 10. The forced take-off and landing are realized by mutual matching, and the power stroke is completed more quickly and effectively. Saving energy consumption, increasing yield and protecting environment.
A forced take-off and landing type automatic reversing hydraulic pumping unit comprises: the automatic hydraulic control system is fixed on the machine base 13, the frame main body sequentially fixes the first ascending fixed pulley 2, the second descending fixed pulley 7, the weight box pulley 3, the ascending pulley block 4, the first descending fixed pulley 6 is fixed on the front end of the base 13, and the second ascending fixed pulley 5 is fixed on the rear end of the base 13. A vertical hydraulic oil cylinder 9 is fixed in the central frame main body of the base 13, and an up-down pulley block 8 is arranged at the top of the vertical hydraulic oil cylinder 9; an automatic control hydraulic system is also arranged on the base 13, and an automatic hydraulic control device 20 is connected with the vertical hydraulic cylinder 9. The rail 21 and the pulley are arranged on the base 13, so that the pumping unit can be directly moved backwards during well repair operation, and the operation space required by well repair operation is solved. The automatic hydraulic control device 20 can realize the adjustment of the acting speed, and the length of the acting stroke can be controlled by adjusting the height of the control valve. The hydraulic accumulator is also arranged in the system and used as an auxiliary energy source, and the accumulator is arranged at the outlet of the hydraulic pump, so that noise and vibration generated by the hydraulic system can be effectively attenuated, and the stability of the system is improved. The accumulator can be filled with oil during normal operation of the oil pump, and high-pressure oil stored in the accumulator can be released to supply oil to the system after the oil pump stops. The automatic control system controls the start and stop of the motor and the start and stop of the energy accumulator to work alternately, so that the working time of the motor is shortened.
The first upward steel wire belt 11 is installed on the pumping rod clamping head 1 to bypass the upper platform 14, the first upward fixed pulley 2 and the upward pulley block 4 to be fixed on the weight box 10, the second upward fixed pulley 5 and the upward and downward movable pulley block 8 on the hydraulic cylinder 9 are wound by the steel wire belt 18 again from the bottom of the weight box 10 to be finally fixed on the upward steel wire belt tensioner 17. The upstroke is achieved by raising the hydraulic cylinder via hydraulic control means 20 to drive the second upstroke 18 to up-stroke the sucker rod. Meanwhile, the counterweight steel wire belt 19 of the weight box 10 is fixedly connected with the weight box 10 through the upper and lower movable pulley blocks 8, the top counterweight pulley block 3 and the upper movable pulley block 4 on the counterweight steel wire belt tensioner 15, and the weight of the sucker rod is balanced with the weight box 10 by the weight box 10 due to the transmission of the counterweight steel wire belt 19 of the weight box 10 while the hydraulic cylinder ascends.
The pumping rod clamping head 1 is provided with a descending steel wire belt 12, an upper and lower movable pulley block 8 arranged on the first descending fixed pulley 6, the second descending fixed pulley 7 and the hydraulic cylinder 9 is finally fixed on a descending steel wire belt tensioner 16 of the upper platform 14, and the hydraulic cylinder is descended by the hydraulic control device 20 to drive the descending steel wire belt 12 to force the pumping rod to descend, so that forced downstroke is realized. Meanwhile, the weight steel wire belt 19 of the weight box 10 enables the weight box 10 to ascend more effectively due to the descending of the up-and-down movable pulley block 8, so that the load brought by the weight box 10 is reduced during the downstroke, and the sucker rod is convenient for the downstroke.
The working principle of the hydraulic system is as follows: the motor drives the oil pump to suck hydraulic oil from the oil tank through the filter and convey the hydraulic oil to the accumulator, the flow rate is regulated through the flow regulating valve to realize the speed of stroke, the hydraulic control device 20 is connected through the check valve and the connecting pipeline, the reversing valve arranged on the hydraulic control device 20 enters the oil cylinder 9 to enable the oil cylinder to ascend to reach the upper stroke of the sucker rod, when the upper stroke is highest, the reversing valve arranged on the hydraulic control device 20 is touched to enable the oil cylinder 9 to move downwards when the oil cylinder is opened, and when the reversing valve is touched again, the upper stroke is repeated again. The automatic control system starts and stops the motor and the energy accumulator to alternately work. The hydraulic circuit is provided with a radiator, the radiator can radiate heat to hydraulic oil in summer, the reversing valve can be closed in winter to directly flow back to the oil tank, and the length of the stroke can be changed by adjusting the height of the hydraulic system 20.
Another object of the present application is to provide a hydraulic pumping system in which the forced take-off and landing type automatic reversing hydraulic pumping unit is installed.
The foregoing is merely illustrative of specific embodiments of the present application, and the scope of the application is not limited thereto, but any modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present application will be apparent to those skilled in the art within the scope of the present application.
Claims (5)
1. The forced lifting type automatic reversing hydraulic pumping unit is characterized in that a base is arranged on the forced lifting type automatic reversing hydraulic pumping unit, and an automatic hydraulic control system and a frame main body are fixedly arranged on the base;
the upper end of the base is provided with a shelf main body and an upper platform, the upper platform is sequentially fixed with an upper and lower movable pulley block, a counterweight fixed pulley and an upper pulley block, the front end of the base is fixed with a lower fixed pulley block, and the rear end of the base is fixed with an upper fixed pulley block; a vertical hydraulic cylinder is fixed in a frame main body in the center of the base, and an uplink pulley block and a downlink pulley block are arranged at the top of the vertical hydraulic cylinder; the base is also provided with an automatic control hydraulic system, and the hydraulic control device is connected with the vertical hydraulic cylinder;
the device is matched with a hydraulic system, a first uplink steel wire belt is arranged on a clamping head of a sucker rod, bypasses an upper platform, a first uplink fixed pulley and an uplink pulley block to be fixed on a weight box, and a second uplink steel wire belt is used for winding a second uplink fixed pulley from the bottom of the weight box and then the upper and lower movable pulley blocks on a hydraulic cylinder are finally fixed on an uplink steel wire belt tensioner; lifting the hydraulic cylinder through the hydraulic control device to drive the second ascending steel wire belt to ascend the sucker rod, so that an upstroke is realized; meanwhile, a counterweight steel wire belt of the counterweight box is fixedly connected to the counterweight box through an up-and-down movable pulley block, a top counterweight fixed pulley and an up-and-down pulley block by a counterweight steel wire belt tensioner, and the counterweight steel wire belt of the counterweight box drives to descend when the hydraulic cylinder ascends so as to balance the weight of the sucker rod and the counterweight box;
the downward steel wire belt is installed by the pumping rod clamping head, the upward and downward movable pulley blocks installed on the first downward fixed pulley, the second downward fixed pulley and the hydraulic cylinder are finally fixed on the downward steel wire belt tensioner of the upper platform, and the hydraulic cylinder is lowered by the hydraulic control device to drive the downward steel wire belt to make the pumping rod forcedly move downward, so that the forced downward stroke is realized; meanwhile, the counterweight steel wire belt of the counterweight box can make the counterweight box ascend more effectively due to the descending of the up-and-down movable pulley block, so that the load brought by the counterweight box is reduced when the counterweight box is in downstroke, and the sucker rod is convenient for the downstroke;
the working principle of the hydraulic system is as follows: the motor drives the oil pump to suck hydraulic oil from the oil tank through the filter and convey the hydraulic oil to the accumulator, the flow rate is regulated through the flow regulating valve to realize the speed of stroke, the hydraulic control device is connected to the oil cylinder through the check valve and the connecting pipeline, the reversing valve arranged on the hydraulic control device enters the oil cylinder to enable the oil cylinder to ascend to reach the upper stroke of the sucker rod, when the upper stroke is highest, the reversing valve arranged on the hydraulic control device is touched to enable the oil cylinder to move downwards when the oil cylinder is opened, and when the reversing valve is touched again, the upper stroke is repeated again; the automatic control system alternately works the motor and the energy accumulator when the motor and the energy accumulator are started and stopped, the radiator is arranged on the hydraulic circuit, the hydraulic oil can be radiated through the radiator in summer, the reversing valve can be closed in winter to directly flow back to the oil tank, and the length of the stroke can be changed by adjusting the height of the hydraulic system.
2. The forced take-off and landing type automatic reversing hydraulic pumping unit of claim 1, wherein the front end of the upper platform is fixed with a second descending fixed pulley, and a hydraulic control system is arranged on the hydraulic cylinder.
3. The forced take-off and landing type automatic reversing hydraulic pumping unit according to claim 1, wherein a rail and a pulley are mounted on the base.
4. The forced take-off and landing type automatic reversing hydraulic pumping unit according to claim 1, wherein the hydraulic control device is further connected with a hydraulic accumulator, and the hydraulic accumulator is installed at an outlet of the hydraulic pump.
5. A hydraulic pumping system provided with the forced take-off and landing type automatic reversing hydraulic pumping unit as claimed in any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010198941.6A CN111411919B (en) | 2020-03-17 | 2020-03-17 | Forced take-off and landing type automatic reversing hydraulic pumping unit and pumping system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010198941.6A CN111411919B (en) | 2020-03-17 | 2020-03-17 | Forced take-off and landing type automatic reversing hydraulic pumping unit and pumping system |
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| Publication Number | Publication Date |
|---|---|
| CN111411919A CN111411919A (en) | 2020-07-14 |
| CN111411919B true CN111411919B (en) | 2023-09-22 |
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| CN202010198941.6A Active CN111411919B (en) | 2020-03-17 | 2020-03-17 | Forced take-off and landing type automatic reversing hydraulic pumping unit and pumping system |
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| CN111411919A (en) | 2020-07-14 |
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