CN108571293A - A kind of gravitation energy recycles formula well repairing device and its application method - Google Patents
A kind of gravitation energy recycles formula well repairing device and its application method Download PDFInfo
- Publication number
- CN108571293A CN108571293A CN201810519212.9A CN201810519212A CN108571293A CN 108571293 A CN108571293 A CN 108571293A CN 201810519212 A CN201810519212 A CN 201810519212A CN 108571293 A CN108571293 A CN 108571293A
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- Prior art keywords
- actuating unit
- accumulating mechanism
- hydraulic cylinder
- elevator
- rodless cavity
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 82
- 238000009434 installation Methods 0.000 claims abstract description 4
- 239000013589 supplement Substances 0.000 claims abstract description 3
- 239000003921 oil Substances 0.000 claims description 41
- 239000010720 hydraulic oil Substances 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 239000002828 fuel tank Substances 0.000 claims description 12
- 230000033001 locomotion Effects 0.000 claims description 4
- 229910019142 PO4 Inorganic materials 0.000 claims description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 3
- 239000010452 phosphate Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000012209 synthetic fiber Substances 0.000 claims description 3
- 229920002994 synthetic fiber Polymers 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims description 2
- 230000005484 gravity Effects 0.000 claims 1
- 238000005086 pumping Methods 0.000 claims 1
- 230000003068 static effect Effects 0.000 claims 1
- 239000003208 petroleum Substances 0.000 abstract description 4
- 206010037660 Pyrexia Diseases 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 4
- 239000003129 oil well Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 235000009566 rice Nutrition 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/02—Rod or cable suspensions
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/02—Rod or cable suspensions
- E21B19/06—Elevators, i.e. rod- or tube-gripping devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G3/00—Other motors, e.g. gravity or inertia motors
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention belongs to field of petroleum machinery, and in particular to a kind of gravitation energy recycles formula well repairing device and its application method.It includes lifting rope, elevator, hydraulic cylinder, movable pulley, accumulating mechanism, actuating unit, repairing mechanism that gravitation energy, which recycles formula well repairing device, lifting rope tail end installation elevator, the piston rod of hydraulic cylinder fixes on the ground, and cylinder body can drive movable pulley to move upwards, and can also be moved downward under movable pulley pressure；The rod chamber of hydraulic cylinder is connect with repairing mechanism by branch BB', and the rodless cavity of hydraulic cylinder is connect with accumulating mechanism, actuating unit by branch AA', there is three-position four-way valve between rodless cavity and accumulating mechanism, actuating unit；When downlink, actuating unit, hydraulic cylinder can be oil-filled to accumulating mechanism；When uplink, accumulating mechanism can supplement actuating unit energy.The present invention is reliable and stable, converts gravitional force to pressure energy, saves the energy, avoids the situation of traditional approach brake abrasion, fever failure.
Description
Technical field
The invention belongs to field of petroleum machinery, and in particular to a kind of gravitation energy recycles formula well repairing device and its user
Method.
Background technology
At present during oil field well workover with pressure, current oil well is easily more than two, three kms, using box cupling by 10
The one section of oil pipe or sucker rod of rice or so link together.In well workover, need by oil pipe or sucker rod using elevator a section
It takes out, after maintenance, then a section is sent into oil well.At present in industry, such as the Chinese invention of Publication No. CN102704868B
Disclosed by granted patent " split type remote control Operating Pressure workover rig ", using lifting of winch and it is sent into oil well, winch packet
Roller and arrestment mechanism are included, arrestment mechanism uses brake disc.
By summarizing well workover process, it is found that the process of down tube is played, be exactly a reciprocating machine movement, when playing pipe,
Workover rig overcomes gravitional force to do positive work；When down tube, the transmission clutch of workover rig detaches, and allows oil pipe or sucker rod in dead weight
The lower downlink of effect.Oil pipe, sucker rod, which rapidly fall, in order to prevent leads to safety accident, generally use brake disc so that declined
Cheng Pinghuan.And the gravitional force during decline can only be become frictional dissipation by brake disc, meanwhile, fever causes asking for failure
Topic puzzlement industry.Therefore the well workover process carried out to obtain petroleum-based energy, energy loss are surprising.How to realize it is energy saving and
Reliably mode well workover becomes petroleum industry urgent problem to be solved.
Invention content
For the above-mentioned deficiency present in the prior art, the technical problem to be solved in the present invention is to provide a kind of gravitation energies again
Using formula well repairing device, gravitional force when by oil pipe or sucker rod downlink is converted into the pressure energy of liquid, and passes through energy accumulating machine
Structure stores；In oil pipe or sucker rod uplink, the pressure energy that accumulating mechanism is stored releases again, increases workover rig
Power.
The present invention adopts the following technical scheme that：A kind of gravitation energy recycling formula well repairing device, including steel wire rope, elevator, liquid
Cylinder pressure, movable pulley, accumulating mechanism, actuating unit, repairing mechanism,
Steel wire rope dead line head is fixed on the chassis of well repairing device, and live line head passes through movable pulley to connect elevator, and elevator is placed
Above well head, and it can be moved up and down in well head central axes；
Movable pulley has multiple, and movable pulley is hinged by terminal pad and hydraulic cylinder；
Terminal pad is fixed on the cylinder body upper surface of hydraulic cylinder, and the piston rod of hydraulic cylinder is fixed on the bottom of well repairing device
On disk, cylinder body can drive movable pulley to move upwards, and can also be moved downward under movable pulley pressure；
The rod chamber of hydraulic cylinder is connect with repairing mechanism by branch BB', rodless cavity and accumulating mechanism, the power of hydraulic cylinder
Mechanism is connected by branch AA', there is control mechanism between rodless cavity and accumulating mechanism, actuating unit, when uplink rodless cavity with it is dynamic
Force mechanisms connect, and rodless cavity is connect with accumulating mechanism when downlink, accumulating mechanism and actuating unit diconnected.
Further, steel wire rope uses wire rope core for synthetic fibers, and there is the stainless steel of phosphate coat on surface.
Further, actuating unit includes oil pump, the first fuel tank, and accumulating mechanism includes shell, air bag, liquid when downlink is oil-filled
Pressure oil extruding gasbag, intracapsular pressure increase, and intracapsular pressure pushes hydraulic oil when uplink, are that the oil pump of actuating unit increases pressure
Power, in order to prevent emergency case cause oil-filled excessive, accumulating mechanism further includes overload fuel tank.
Further, hydraulic oil reflux causes to miss in order to prevent, actuating unit and accumulating mechanism pipeline intersection point X and power
Installation is from actuating unit best friend's point X there are one check valve, check valve flow direction between mechanism.
Further, three position four-way directional control valve can be selected in the control mechanism between rodless cavity and accumulating mechanism, actuating unit,
First station, rodless cavity are connected to accumulating mechanism, and actuating unit, rodless cavity are oil-filled to accumulating mechanism, and repairing mechanism is to rod chamber
Repairing includes；Second station, rodless cavity are cut off with accumulating mechanism, actuating unit, and actuating unit is oil-filled to accumulating mechanism；Third work
Position, actuating unit are connected to rodless cavity, and actuating unit, accumulating mechanism are oil-filled to rodless cavity, and hydraulic cylinder is hung by movable pulley drive
Card uplink, rod chamber is to the oil transportation of repairing mechanism.
Further, the oil pipe of elevator and well head is detachably connected.
Further, the sucker rod of elevator and well head is detachably connected.
Correspondingly, it is as follows to provide a kind of gravitation energy recycling formula well repairing device application method：
1, downlink mode：Elevator, which is hung downwards, send oil pipe or sucker rod to enter well head.
When three position four-way directional control valve is located at the first station, the cylinder body of AT connections, hydraulic cylinder is negative in oil pipe or sucker rod etc.
It is moved downward under load-carrying force effect, rodless cavity hydraulic oil is along the directions A'A, and to accumulating mechanism oiling, the air bag of accumulating mechanism is by crowded
Pressure, oil pipe, sucker rod gravitional force are converted into accumulating mechanism pressure energy；Actuating unit is also to accumulating mechanism oiling simultaneously, if pressure
Power is excessive, hydraulic oil flow into overload fuel tank, air bag simultaneously as decline buffering equipment, at this time rod chamber from repairing mechanism supplement
Hydraulic oil；
2, quasi- knot pattern：Elevator is in still-mode.
When three position four-way directional control valve is located at second station, A channel closing, hydraulic cylinder stop motion.Actuating unit utilizes sky
The remaining time to accumulating mechanism oiling, puts aside pressure energy；
3, uplink pattern：Elevator lifts oil pipe or sucker rod upwards.
When three position four-way directional control valve is located at 3rd station, PA connections, actuating unit and accumulating mechanism are noted to rodless cavity simultaneously
The hydraulic oil of oil, rod chamber backs into repairing mechanism, and elevator can fast lifting, the pressure energy stored by accumulating mechanism and power at this time
The pressure energy of mechanism is converted into gravitional force simultaneously.
Advantageous effect：
1, three position four-way directional control valve is in the first and second stations, that is, loads downlink and when stop motion, and system is to accumulation of energy
Mechanism oiling.When three position four-way directional control valve is in 3rd station, and uplink is wanted in load, accumulating mechanism and oil pump are supplied to system simultaneously
Oil, therefore the input power of oil pump is required to reduce；The input power of oil pump can be motor, can also be diesel engine.
2, during downlink, gravitional force is converted into pressure energy storage, and operation is gentle, can be by designing different energy accumulating machines
Structure gasbag pressure controls downstream rate；
3, three position four-way directional control valve is controlled by PLC, and pressure, the speed of service of load and the displacement of related oil circuit can be real
Existing process full-automation operation.
Description of the drawings
Fig. 1 is principle schematic diagram of the present invention.
In figure：1 well head, 2 elevators, 3 hydraulic cylinders, 301 pistons, 302 cylinder bodies, 303 piston rods, 4 steel wire ropes, 5 terminal pads, 6
Movable pulley, 7 dead line heads, 8 accumulating mechanisms, 801 overload fuel tanks, 9 actuating units, 901 first fuel tanks, 10 three-position four-way valves, 11 mend
Oil machine structure.
Specific implementation mode
The particular content of the present invention is described in detail in the following with reference to the drawings and specific embodiments.
This basic principle and improvement are：Normal practice is loading, and is to pass through during downlink such as oil pipe, sucker rod
Brake disc slows down, and load is made to remain a constant speed decline；During uplink, engine or motor supply is leaned on to rise energy completely
Amount.And during the present invention drops under a load, back pressure is formed by accumulating mechanism 8, converts gravitional force to the pressure of liquid
Energy；During loading uplink, the pressure energy of storage discharges again, and pump supplies energy to system together, can reduce to pump work
The requirement of rate, and reduce the energy loss of pump.
As shown in Figure 1：A kind of gravitation energy recycling formula well repairing device, including steel wire rope 4, elevator 2, hydraulic cylinder 3, movable pulley
6, accumulating mechanism 8, actuating unit 9, repairing mechanism 11,
4 dead line head 7 of steel wire rope is fixed on the chassis of well repairing device, and steel wire rope 4 passes through movable pulley 6,4 live line head of steel wire rope
Installation elevator 2, elevator 2 is positioned over 1 top of well head, and can be moved up and down in 1 central axes of well head；Well head 1 can be well, oil well,
Gas well.
Movable pulley 6 has 2, and movable pulley 6 is hinged by terminal pad 5 and hydraulic cylinder 3；
Terminal pad 5 is fixed on 302 upper surface of cylinder body of hydraulic cylinder 3, and the piston rod 303 of hydraulic cylinder 3 is fixed on well repairing device
Chassis on, cylinder body 302 can drive movable pulley 6 to move upwards, and can also be moved downward under 6 pressure of movable pulley；
The rod chamber of hydraulic cylinder 3 is connect with repairing mechanism 11 by branch BB', the rodless cavity and accumulating mechanism of hydraulic cylinder 3
8, actuating unit 9 is connected by branch AA', there is control mechanism between rodless cavity and accumulating mechanism 8, actuating unit 9, when uplink without
Rod cavity is connect with actuating unit 9, and rodless cavity is connect with accumulating mechanism 8 when downlink, accumulating mechanism 8 and 9 diconnected of actuating unit.
In practical applications, the actuating unit 9 includes oil pump, the first fuel tank 901, and accumulating mechanism 8 includes shell, gas
Capsule, overload fuel tank 801, hydraulic oil extruding gasbag when oil-filled, hydraulic oil flows into overload fuel tank 801 when hydraulic oil is excessive in shell.
In practical applications, the control mechanism between the rodless cavity and accumulating mechanism 8, actuating unit 9 is 3-position 4-way
Reversal valve 10, when being located at right position, actuating unit 9 is connected to rodless cavity；When positioned at middle position, rodless cavity and accumulating mechanism 8, engine
Structure 9 is cut off；When positioned at left position, rodless cavity is connected to accumulating mechanism 8.
In practical applications, the actuating unit 9 includes check valve 902, and check valve 902 is mounted on the oil of actuating unit 9
The exit of pump, flow to for along actuating unit 9 to accumulating mechanism 8, three position four-way directional control valve 10.
In practical applications, the elevator 2 and the oil pipe of well head 1 are detachably connected.
In practical applications, the elevator 2 and the sucker rod of well head 1 are detachably connected.
In practical applications, the steel wire rope 4 uses wire rope core for synthetic fibers, and there is the stainless steel of phosphate coat on surface.
Through experiment, the present apparatus saves 35% or more power consumption than traditional workover rig.
In conclusion the present invention is reliable and stable, converts gravitional force to pressure energy, save the energy, avoid tradition side
The situation of formula brake abrasion, fever failure.
The basic principles and main features and advantage of the present invention have been shown and described above.The technical staff of the industry should
Understand, the above embodiment only technical concepts and features to illustrate the invention, its object is to allow person skilled in the art
Scholar can understand present disclosure and be implemented, and it is not intended to limit the scope of the present invention, all according to the present invention
Equivalent change or modification made by Spirit Essence should all cover within the scope of the present invention.
Claims (7)
1. a kind of gravitation energy recycles formula well repairing device, it is characterised in that：Including steel wire rope (4), elevator (2), hydraulic cylinder (3),
Movable pulley (6), accumulating mechanism (8), actuating unit (9), repairing mechanism (11),
Steel wire rope (4) dead line head (7) is fixed in equipment chassis, and steel wire rope (4) passes through movable pulley (6), steel wire rope (4) other end
Installation elevator (2), elevator (2) is positioned over above well head (1), and can be moved up and down in well head (1) central axes；
Movable pulley (6) has multiple, and movable pulley (6) is hinged by terminal pad (5) and hydraulic cylinder (3)；
Terminal pad (5) is fixed on cylinder body (302) upper surface of hydraulic cylinder (3), and the piston rod (303) of hydraulic cylinder (3), which is fixed on, to be repaiied
On the chassis of well device, cylinder body (302) can drive movable pulley (6) to move upwards, and also can downwards be transported under movable pulley (6) pressure
It is dynamic；
The rod chamber of hydraulic cylinder (3) is connect with repairing mechanism (11) by branch BB', the rodless cavity and energy accumulating machine of hydraulic cylinder (3)
Structure (8), actuating unit (9) are connected by branch AA', and rodless cavity and accumulating mechanism (8), actuating unit have control machine between (9)
Structure, rodless cavity is connect with actuating unit (9) when uplink, and rodless cavity is connect with accumulating mechanism (8) when downlink, accumulating mechanism (8) with
Actuating unit (9) diconnected.
2. a kind of gravitation energy according to claim 1 recycles formula well repairing device, it is characterised in that：The actuating unit
(9) include oil pump, the first fuel tank (901), accumulating mechanism (8) includes shell, air bag, overload fuel tank (801), hydraulic oil when oil-filled
Extruding gasbag, hydraulic oil flows into overload fuel tank (801) when hydraulic oil is excessive in shell.
3. a kind of gravitation energy according to claim 1 or 2 recycles formula well repairing device, it is characterised in that：The rodless cavity
Control mechanism between accumulating mechanism (8), actuating unit (9) is three position four-way directional control valve (10), including the first station, no bar
Chamber and accumulating mechanism (8), actuating unit (9) cut-out (A and T-phase are logical)；Second station, actuating unit (9) connect with accumulating mechanism (8)
It is logical, rodless cavity cut-out；3rd station, actuating unit (9) are connected to (P is communicated with A) with rodless cavity.
4. a kind of gravitation energy according to claim 3 recycles formula well repairing device, it is characterised in that：The actuating unit
(9) include check valve (902), check valve (902) is mounted on the exit of actuating unit (9) oil pump, flows to as along actuating unit
(9) to accumulating mechanism (8), three position four-way directional control valve (10).
5. a kind of gravitation energy according to claim 4 recycles formula well repairing device, it is characterised in that：The elevator (2) with
The sucker rod or oil pipe of well head (1) are detachably connected.
6. a kind of gravitation energy according to claim 5 recycles formula well repairing device, it is characterised in that：The steel wire rope (4)
Use wire rope core for synthetic fibers, there is the stainless steel steel wire rope of phosphate coat on surface.
7. a kind of gravitation energy recycles the application method of formula well repairing device, which is characterized in that include the following steps：
1) downlink mode：Elevator (2), which is hung, send oil pipe or sucker rod tripping in well head (1).
When three position four-way directional control valve (10) is located at the first station, AT connections, the cylinder body (302) of hydraulic cylinder (3) is in oil pipe or pumping
It is moved downward under the load gravity such as beam hanger, rodless cavity hydraulic oil is along the directions A'A, to accumulating mechanism (8) oiling, accumulating mechanism
(8) air bag is squeezed, and oil pipe, sucker rod gravitional force are converted into accumulating mechanism (8) pressure energy；Actuating unit (9) simultaneously
To accumulating mechanism (8) oiling, if pressure is excessive, hydraulic oil flows into overload fuel tank (801), and air bag is set as the buffering declined simultaneously
Standby, rod chamber supplements hydraulic oil from repairing mechanism (11) at this time；
2) quasi- knot pattern, elevator (2) remain static.
When three position four-way directional control valve (10) is located at second station, A channel closing, hydraulic cylinder (3) stop motion.Actuating unit (9)
Using free time to accumulating mechanism (8) oiling, pressure energy is put aside；
3) uplink pattern, elevator (2) lift oil pipe or sucker rod upwards.
When three position four-way directional control valve (10) is located at 3rd station, PA connections, actuating unit (9) and accumulating mechanism (8) while to nothing
The hydraulic oil of rod cavity oiling, rod chamber backs into repairing mechanism (11), at this time elevator (2) can fast lifting, accumulating mechanism (8) stored up
The pressure energy of the pressure energy and actuating unit (9) deposited while being converted into gravitional force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810519212.9A CN108571293A (en) | 2018-05-28 | 2018-05-28 | A kind of gravitation energy recycles formula well repairing device and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810519212.9A CN108571293A (en) | 2018-05-28 | 2018-05-28 | A kind of gravitation energy recycles formula well repairing device and its application method |
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| Publication Number | Publication Date |
|---|---|
| CN108571293A true CN108571293A (en) | 2018-09-25 |
Family
ID=63573020
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810519212.9A Pending CN108571293A (en) | 2018-05-28 | 2018-05-28 | A kind of gravitation energy recycles formula well repairing device and its application method |
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| Country | Link |
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| CN (1) | CN108571293A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057088A (en) * | 1991-02-11 | 1991-12-18 | 胜利石油管理局钻井工艺研究院 | Hydraulic energy-storage petroleum workover rig |
| US5390747A (en) * | 1992-12-10 | 1995-02-21 | Drilling Technology Research Institute Of Shengli Oilfield | Well rig lift system and a hydraulic energy-storing well rig lift system |
| CN201963219U (en) * | 2011-01-20 | 2011-09-07 | 中国石油集团渤海石油装备制造有限公司 | Multi-hydraulic cylinder electric energy-accumulating workover rig with energy accumulator |
| CN202866685U (en) * | 2012-10-24 | 2013-04-10 | 东营鸿昇机械设备有限公司 | Under-pressure energy storage workover rig |
| CN202882795U (en) * | 2012-10-27 | 2013-04-17 | 盐城市大冈石油工具厂有限责任公司 | Full hydraulic energy-saving belt pressing operation combination device |
| CA2802876A1 (en) * | 2012-08-02 | 2014-02-02 | Shuang Zhou | Tower-style double cylinder hydraulic oil pumping unit |
| CN105239936A (en) * | 2015-11-09 | 2016-01-13 | 江苏省金峰石油机械制造有限公司 | Vehicle-mounted energy accumulating hydraulic workover rig |
| CN208330228U (en) * | 2018-05-28 | 2019-01-04 | 盐城市金巨石油机械制造有限公司 | A kind of gravitation energy recycling formula well repairing device |
-
2018
- 2018-05-28 CN CN201810519212.9A patent/CN108571293A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057088A (en) * | 1991-02-11 | 1991-12-18 | 胜利石油管理局钻井工艺研究院 | Hydraulic energy-storage petroleum workover rig |
| US5390747A (en) * | 1992-12-10 | 1995-02-21 | Drilling Technology Research Institute Of Shengli Oilfield | Well rig lift system and a hydraulic energy-storing well rig lift system |
| CN201963219U (en) * | 2011-01-20 | 2011-09-07 | 中国石油集团渤海石油装备制造有限公司 | Multi-hydraulic cylinder electric energy-accumulating workover rig with energy accumulator |
| CA2802876A1 (en) * | 2012-08-02 | 2014-02-02 | Shuang Zhou | Tower-style double cylinder hydraulic oil pumping unit |
| CN202866685U (en) * | 2012-10-24 | 2013-04-10 | 东营鸿昇机械设备有限公司 | Under-pressure energy storage workover rig |
| CN202882795U (en) * | 2012-10-27 | 2013-04-17 | 盐城市大冈石油工具厂有限责任公司 | Full hydraulic energy-saving belt pressing operation combination device |
| CN105239936A (en) * | 2015-11-09 | 2016-01-13 | 江苏省金峰石油机械制造有限公司 | Vehicle-mounted energy accumulating hydraulic workover rig |
| CN208330228U (en) * | 2018-05-28 | 2019-01-04 | 盐城市金巨石油机械制造有限公司 | A kind of gravitation energy recycling formula well repairing device |
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