CN111119757A - Energy storage workover rig - Google Patents
Energy storage workover rig Download PDFInfo
- Publication number
- CN111119757A CN111119757A CN202010064883.8A CN202010064883A CN111119757A CN 111119757 A CN111119757 A CN 111119757A CN 202010064883 A CN202010064883 A CN 202010064883A CN 111119757 A CN111119757 A CN 111119757A
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- CN
- China
- Prior art keywords
- energy storage
- workover rig
- cabinet
- storage workover
- battery module
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
Abstract
The invention discloses an energy storage workover rig which comprises a battery module, wherein the battery module is used for supplying power for workover operation and chassis walking of the energy storage workover rig. Has the advantages that: the problem of insufficient power supply of a well site is solved by supplying power through the battery with the high-power charging and discharging function, the requirement of high-power operation during operation is met, and the operation efficiency is improved. The potential energy transferred in the workover operation and the kinetic energy in the walking are converted into the electric energy stored in the battery module through the charging and discharging of the battery module, the electric energy provides required power for the workover operation of the workover rig and the walking of the chassis, the pure electric of the workover rig is realized, and the key technical problem that the bench operation is single electric or the walking is single electric in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of workover rigs, in particular to an energy storage workover rig.
Background
The workover rig is specialized mechanical equipment for maintaining an oil field underground pipe column or a well body, and is mainly used for lifting and lowering oil pipes, sucker rods and oil well pumps and the like. At present, a diesel engine is a main power source of a workover rig and provides power for the walking and operation of the workover rig. However, a large amount of harmful gas is generated by the combustion of diesel oil, so that the environment pollution is caused, and the diesel oil does not accord with the national energy-saving and emission-reducing policy nor the requirement of environmental protection. Diesel engines convert only 30% of the thermal energy produced by diesel combustion into mechanical energy, resulting in a diesel workover rig that is less efficient. The diesel engine has high failure rate and low power utilization rate, and the diesel engine is in an idle running state about 66% of the time in the well repairing operation.
In the well repairing process, the pipe lifting and lowering is typically intermittent cycle operation, the high-power output of an engine is realized when the pipe column is lifted, and the engine is in low-load or no-load operation during auxiliary operations such as tripping, elevator picking and the like. In order to meet the requirements of maximum hook load and hook speed, a traditional workover rig needs to be provided with a high-power engine, so that high power waste is caused. The maximum power requirement is mainly embodied in the lifting working condition of the oil pipe, in a complete lifting process, the lifting time only occupies 1/4-1/3 of the whole working period, the load is small in the rest time, the gravity of a big hook needs to be overcome when the oil pipe descends, and the system has negative power.
The workover rig has short operation period and frequent relocation, and if power is obtained by a high-voltage power grid, the workover rig needs to be approved by power departments and is limited by factors such as long high-voltage power grid operation approval time and power connection danger, and the flexibility of the electrically driven workover rig is limited. If the low-voltage end of the pumping unit transformer is used for power taking, the power of the pumping unit transformer is smaller than that of a winch motor, and the power requirements of hook load, hook speed and the like required by the operation of a large workover rig cannot be met. The capacity of a transformer adopted by most oil wells is generally 50-80 kVA.
Based on the above problems, a new workover rig is needed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides an energy storage workover rig, which converts potential energy lowered in workover operation and kinetic energy in walking into electric energy stored in a battery module through the charging and the discharging of the battery module, wherein the electric energy provides required power for workover rig workover operation and chassis walking, so that the pure electric power of the workover rig is realized, and the key technical problem of single electric power for bench operation or single electric power for walking in the prior art is overcome.
The aim of the invention is achieved by the following technical measures: the energy storage workover rig comprises a battery module, and the workover operation and chassis walking of the energy storage workover rig are powered by the battery module.
Further, the energy storage workover rig can charge the battery module by using potential energy released in workover operation and charge the battery module by using kinetic energy generated in walking of the energy storage workover rig.
Further, the energy storage workover rig includes the derrick, the chassis, fills discharge electric receptacle cabinet, on-vehicle cabinet that charges, the switch board, electronic air compressor machine, motor drive system, the racking platform, the winch, the platform is controlled to the driller, transmission system, electronic steering pump, main driving motor, electronic main oil pump, electronic air conditioning system, the derrick, fill discharge electric receptacle cabinet, on-vehicle cabinet that charges, the switch board, electronic air compressor machine, motor drive system, the racking platform, the winch, the platform is controlled to the driller, transmission system, electronic steering pump, main driving motor, electronic main oil pump and electronic air conditioning system are integrated on the chassis.
Further, the center of the main driving motor coincides with the center of a frame girder of the chassis.
Further, the charging and discharging socket cabinet is arranged on one side behind the chassis cab.
Further, the battery module is arranged at one end of a crossbeam of the chassis frame, which is close to the cab.
Further, the vehicle-mounted charging cabinet is adjacent to the battery module, and the control cabinet is adjacent to the battery module.
Further, the motor driving system is arranged on the side face of a crossbeam of the chassis frame.
Further, the derrick is a sleeved derrick.
Further, the driller control platform is arranged at the tail part of the chassis and arranged on the Y-shaped supporting leg of the sleeved derrick.
Further, the height of the sleeved derrick is more than 22 meters.
Further, the drawworks is 350 horsepower or more.
Further, the energy storage workover rig is a double-vertical-root drilling tool, and the double-vertical-root drilling tool is arranged on the racking platform.
Furthermore, the life power cabinet is integrated on the chassis, one end of the life power cabinet is connected with the battery module, and the other end of the life power cabinet is connected with the charging and discharging socket cabinet.
Further, the energy storage workover rig includes the resistance cabinet that discharges, the resistance cabinet that discharges is established in the side of chassis frame girder, the resistance cabinet that discharges is used for protecting the overcharge of battery module.
Furthermore, the energy storage workover rig comprises a mechanical interlocking device, and the main driving motor realizes switching and interlocking of workover operation and driving working conditions of the energy storage workover rig through switching of the mechanical interlocking device on a transmission system.
Furthermore, the energy storage workover rig comprises an electric interlocking device, the operation of the chassis cab and the operation of the driller control platform are respectively and independently provided with control programs, and the control cabinet controls the switching and interlocking of the operation of the chassis cab and the operation of the driller control platform through the electric interlocking device.
Further, the electrical interlock is a proximity switch.
Further, the switch board is equipped with remote monitoring, can carry out remote transmission, storage to whole energy storage workover rig operating parameter.
Further, the battery module voltage range: 400V-800V, the charging and discharging power is not lower than 315KW, the electric quantity is not lower than 140KWh, the application environment temperature is minus 20 ℃ to plus 45 ℃, the discharging current is not lower than 400A, the charging and discharging mode is supported, and the charging power is not lower than 50 KW.
Compared with the prior art, the invention has the beneficial effects that: the utility model provides an energy storage workover rig, fills through the limit of battery module and puts, potential energy that transfer in the workover operation and kinetic energy in the walking turn into the electric energy that stores in the battery module, and the electric energy provides required power for workover rig workover operation and chassis walking, has realized the electricelectric of workover rig, has overcome among the prior art bench operation single electronic, or has walked single electronic key technical problem. The whole model selection of the battery module is pure electric driving protection navigation in two modes of workover operation and walking working condition. The arrangement mode of each functional component on the crossbeam of the chassis frame is rationalized and the structure is compact. The height of the sleeved derrick and the horsepower of the winch realize the hook loading of the energy storage workover rig at a large tonnage. The double-stand-up drilling tool and the sleeved derrick realize double-stand-up operation of the energy storage workover rig, and the working efficiency of the pure electric energy storage workover rig is improved. The additional arrangement of the domestic power utilization cabinet solves a plurality of domestic power utilization problems of well sites. The discharge resistor cabinet protects the battery module from damage due to overcharge. Mechanical interlocking and electrical interlocking enable multiple operation modes to be flexibly switched, and operation convenience of the energy storage workover rig is achieved.
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a schematic diagram of an energy storage workover rig.
Fig. 2 is a schematic view of the other side of the energy storage workover rig.
The system comprises a sleeved derrick 1, a chassis 2, a charging and discharging socket cabinet 3, a battery module 4, a vehicle-mounted charging cabinet 5, a control cabinet 6, an electric air compressor 7, a motor driving system 8, a domestic electricity utilization cabinet 9, a racking platform 10, a winch 11, a driller control platform 12, a discharging resistance cabinet 13, a transmission system 14, an electric steering pump 15, a main driving motor 16, an electric main oil pump 17 and an electric air conditioning system 18.
Detailed Description
As shown in fig. 1 to 2, an energy storage workover rig comprises a battery module 4, and the battery module 4 is used for supplying power for workover operation and chassis walking of the energy storage workover rig. The energy storage workover rig can charge the battery module 4 by using potential energy lowered in workover operation and charge the battery module 4 by using kinetic energy in the walking process of the energy storage workover rig. The battery module voltage range: 400V-800V, the charging and discharging power is not lower than 315KW, the electric quantity is not lower than 140KWh, the application environment temperature is minus 20 ℃ to plus 45 ℃, the discharging current is not lower than 400A, the charging and discharging mode is supported, and the charging power is not lower than 50 KW. The potential energy transferred in the workover operation and the kinetic energy in the walking are converted into the electric energy stored in the battery module through the charging and discharging of the battery module, the electric energy provides required power for the workover operation of the workover rig and the walking of the chassis, the pure electric of the workover rig is realized, and the key technical problem that the bench operation is single electric or the walking is single electric in the prior art is solved. The low temperature resistance of the battery module 4 can well meet the application of the energy storage workover rig in a low-temperature environment. With the current, the mining environment is more and more severe, and the low-temperature environment actually belongs to one of common conditions, so that the adaptation of the electric energy storage workover rig to the low-temperature environment is also an important link. The selection of the output power can meet the power consumption requirements of well repair operation and walking working conditions. The large capacity can ensure that the charge is sufficient to match the power usage. The whole model selection of the battery module 4 is pure electric driving protection navigation in two modes of well repairing operation and walking working condition.
The energy storage workover rig comprises a derrick, a chassis 2, a charging and discharging socket cabinet 3, a vehicle-mounted charging cabinet 5, a control cabinet 6, an electric air compressor 7, a motor driving system 8, a racking platform 10, a winch 11, a driller control platform 12, a transmission system 14, an electric steering pump 15, a main driving motor 16, an electric main oil pump 17 and an electric air conditioning system 18, wherein the derrick, the charging and discharging socket cabinet 3, the vehicle-mounted charging cabinet 5, the control cabinet 6, the electric air compressor 7, the motor driving system 8, the racking platform 10, the winch 11, the driller control platform 12, the transmission system 14, the electric steering pump 15, the main driving motor 16, the electric main oil pump 17 and the electric air conditioning system 18 are integrated on the chassis 2. The chassis 2 is a 10 × 8 pure electric chassis vehicle. Kinetic energy recovery: the rotation of the wheels of the chassis 2 drives the main drive motor 16 through the transmission system 14, and the electric energy is stored in the battery module 4 under the control of the motor drive system 8. Potential energy recycling is the prior art and is not described herein. The recovery of potential energy avoids the energy of the workover rig tubular column from being dissipated to the air in the form of heat, improves the energy utilization rate, and meets the national requirements of energy conservation and emission reduction. The control cabinet 6 is provided with remote monitoring, can carry out remote transmission, storage to whole energy storage workover rig operating parameter, realizes remote monitoring and remote debugging to energy storage workover rig.
The sleeved derrick 1 mainly bears the load of a workover travelling crane system; the chassis 2 is mainly used for fixedly mounting all parts of the whole machine and controlling the driving working condition in a cab; the charging and discharging socket cabinet 3 is provided with a high-voltage direct charging socket, is externally connected with a three-phase alternating current charging socket and a domestic electricity output socket; the battery module 4 is used for providing electric energy for driving and workover operations of the energy storage workover rig and storing energy during reverse power generation; the vehicle-mounted charging cabinet 5 is used for carrying out direct current rectification and voltage boosting after the 380V alternating current network is externally connected, charging the vehicle-mounted battery module 4, and simultaneously carrying out automatic power balance of an external power supply and the discharging output of the battery module 4 during the well repairing operation of the external network; the control cabinet 6 is used for fixedly mounting a programmable controller, various communication control modules, an electrical connector and a 24V direct-current power supply module, and meanwhile, the cabinet body is provided with a rainproof and dustproof sealing strip for protecting key electrical components; the electric air compressor 7 is used for providing compressed air for the energy storage workover rig, and the programmable controller automatically controls the electric air compressor to start and stop by detecting the pressure of the air path system and the pressure of the lubricating system of the electric air compressor; the motor driving system 8 inverts the high-voltage direct current into alternating current frequency conversion through an inversion unit and respectively drives the main driving motor 16 and the auxiliary motor to work; the domestic electric cabinet 9 outputs 380V 50Hz alternating current through the inverter power module and the filtering and isolating transformer to meet the requirement of power supply of well site office electricity; the winch 11 is driven by the transmission system 14 to wind the steel wire rope, so that the hoisting or lowering of the travelling crane system is realized; the driller control platform 12 is mainly used for monitoring parameters of workover operation and operating various components and parts in the workover operation; the transmission system 14 is mainly used for realizing the bidirectional transmission of power under the driving working condition and the workover working condition and realizing the power interlocking of the chassis 2 during driving and workover operation through a mechanical interlocking device; the electric steering pump 15 provides hydraulic steering power for the chassis 2 under the driving working condition, so that the chassis 2 is flexible and portable to operate; the main driving motor 16 is used for driving the chassis 2 and carrying out well repairing operation power, and realizes reverse power generation according to the programmable controller and the motor driving system 8; the electric main oil pump 17 provides hydraulic kinetic energy for workover operation, realizes lifting and stretching of the sleeved derrick 1, and provides hydraulic energy for a wellhead hydraulic tool; and the electric air conditioning system 18 is used for providing refrigeration or heating for a driving cab, defrosting and demisting a windshield through an air duct in the driving cab and providing a comfortable driving environment for the driving cab.
The center of the main driving motor 16 is superposed with the center of a frame girder of the chassis 2. The running stability of the chassis 2 is ensured.
The charging and discharging socket cabinet 3 is arranged on one side behind the cab of the chassis 2. The battery module 4 is arranged at one end of a frame girder of the chassis 2 close to a cab.
The vehicle-mounted charging cabinet 5 is arranged adjacent to the battery module 4, so that good charging of the battery module 4 can be guaranteed. The control cabinet 6 is arranged adjacent to the battery module 4. The motor driving system 8 is arranged on the side surface of a frame girder of the chassis 2. The arrangement mode of each functional component on the frame girder of the chassis 2 is rationalized and the structure is compact.
The derrick is a sleeved derrick 1.
The driller control platform 12 is arranged at the tail part of the chassis 2, and the driller control platform 12 is arranged on the Y-shaped supporting leg of the sleeved derrick 1.
The height of the sleeved derrick 1 is more than 22 meters.
The horsepower of the winch 11 is more than 350 horsepower, the horsepower of the winch 11 ensures the hook load of the energy storage workover rig at a large tonnage, and the hook load can reach 90 tons.
The energy storage workover rig is a double-vertical-root drilling tool which is arranged on the racking platform 10. The double-stand-drill and the sleeved derrick 1 realize double-stand operation of the energy storage workover rig, and the working efficiency of the pure electric energy storage workover rig is improved.
The base plate 2 is integrated with a domestic electricity cabinet 9, one end of the domestic electricity cabinet 9 is connected with the battery module 4, and the other end of the domestic electricity cabinet 9 is connected with the charging and discharging socket cabinet 3. The battery module 4 outputs electricity to the domestic electricity utilization cabinet 9, an electrical interface is provided for domestic electricity utilization through the socket in the charge-discharge socket cabinet, and the design of the mode greatly solves a plurality of domestic electricity utilization problems in an operation field.
The energy storage workover rig includes discharge resistance cabinet 13, discharge resistance cabinet 13 establishes in the side of chassis 2 frame girders, discharge resistance cabinet 13 is used for protecting overcharging of battery module 4, has ensured the normal continuous operation of energy storage workover rig to a certain extent. And the discharging resistor cabinet 13 consumes the electric energy generated by the traveling crane system reversely when the battery module 4 is fully charged, so that the impact on external grid electricity is avoided.
The energy storage workover rig comprises a mechanical interlocking device, and the main driving motor 16 realizes switching and interlocking of workover operation and driving working conditions of the energy storage workover rig through switching of the mechanical interlocking device on the transmission system 14.
The energy storage workover rig comprises an electric interlocking device, operation programs are respectively and independently set for operation of a chassis 2 cab and operation of a driller control platform 12, and the operation of the chassis 2 cab and the operation switching and interlocking of the driller control platform 12 are controlled by a control cabinet 6 through the electric interlocking device.
The electrical interlock is a proximity switch. The proximity switch is arranged on the transmission system 14, and after the mechanical interlocking, the proximity switch generates an electric signal which is transmitted to the control cabinet 6, and the control cabinet 6 controls two sets of control programs to switch the interlocking.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (20)
1. An energy storage workover rig, its characterized in that: the energy storage workover rig comprises a battery module, and the workover operation and chassis walking of the energy storage workover rig are powered by the battery module.
2. The energy storage workover rig according to claim 1, wherein: the energy storage workover rig can charge the battery module by using potential energy transferred in workover operation and charge the battery module by using kinetic energy in the walking of the energy storage workover rig.
3. The energy storage workover rig according to claim 1, wherein: the energy storage workover rig comprises a derrick, a chassis, a charging and discharging socket cabinet, a vehicle-mounted charging cabinet, a control cabinet, an electric air compressor, a motor driving system, a two-layer platform, a winch, a driller control console, a transmission system, an electric steering pump, a main driving motor, an electric main oil pump and an electric air conditioning system, wherein the derrick, the charging and discharging socket cabinet, the vehicle-mounted charging cabinet, the control cabinet, the electric air compressor, the motor driving system, the two-layer platform, the winch, the driller control console, the transmission system, the electric steering pump, the main driving motor, the electric main oil pump and the electric air conditioning system are integrated on the chassis.
4. The energy storage workover rig according to claim 3, wherein: the center of the main driving motor is superposed with the center of a crossbeam of the chassis frame.
5. The energy storage workover rig according to claim 3, wherein: the charging and discharging socket cabinet is arranged on one side behind the chassis cab.
6. The energy storage workover rig according to claim 3, wherein: the battery module is arranged at one end of a crossbeam of the chassis frame, which is close to the cab.
7. The energy storage workover rig according to claim 6, wherein: the vehicle-mounted charging cabinet is adjacent to the battery module, and the control cabinet is adjacent to the battery module.
8. The energy storage workover rig according to claim 3, wherein: the motor driving system is arranged on the side surface of a crossbeam of the chassis frame.
9. The energy storage workover rig according to claim 3, wherein: the derrick is a sleeved derrick.
10. The energy storage workover rig according to claim 9, wherein: the driller control platform is arranged at the tail part of the chassis and arranged on the Y-shaped supporting leg of the sleeved derrick.
11. The energy storage workover rig according to claim 9, wherein: the height of the sleeved derrick is more than 22 meters.
12. An energy storage workover rig according to claim 3 or 11, wherein: the winch is above 350 horsepower.
13. The energy storage workover rig according to claim 3, wherein: the energy storage workover rig is a double-vertical-root drilling tool which is arranged on the racking platform.
14. The energy storage workover rig according to claim 3, wherein: the life power consumption cabinet that has integrateed on the chassis, life power consumption cabinet one end battery module links to each other, and the life power consumption cabinet other end links to each other with filling and discharging socket cabinet.
15. The energy storage workover rig according to claim 3, wherein: the energy storage workover rig comprises a discharge resistor cabinet, wherein the discharge resistor cabinet is arranged on the side face of a crossbeam of the chassis frame, and the discharge resistor cabinet is used for protecting the overcharge of the battery module.
16. The energy storage workover rig according to claim 3, wherein: the energy storage workover rig comprises a mechanical interlocking device, and the main driving motor realizes switching and interlocking of workover rig workover operation and driving working conditions of the energy storage workover rig through switching of the mechanical interlocking device on a transmission system.
17. The energy storage workover rig according to claim 16, wherein: the energy storage workover rig comprises an electric interlocking device, the operation of the chassis cab and the operation of the driller control platform are respectively and independently provided with control programs, and the control cabinet controls the switching and interlocking of the operation of the chassis cab and the operation of the driller control platform through the electric interlocking device.
18. The energy storage workover rig according to claim 17, wherein: the electrical interlock is a proximity switch.
19. The energy storage workover rig according to claim 3, wherein: the switch board is equipped with remote monitoring, can carry out remote transmission, storage to whole energy storage workover rig operating parameter.
20. An energy storage workover rig according to claim 1 or 2 or 6 or 7 or 14 or 15, wherein: the battery module voltage range: 400V-800V, the charging and discharging power is not lower than 315KW, the electric quantity is not lower than 140KWh, the application environment temperature is minus 20 ℃ to plus 45 ℃, the discharging current is not lower than 400A, the charging and discharging mode is supported, and the charging power is not lower than 50 KW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010064883.8A CN111119757A (en) | 2020-01-20 | 2020-01-20 | Energy storage workover rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010064883.8A CN111119757A (en) | 2020-01-20 | 2020-01-20 | Energy storage workover rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111119757A true CN111119757A (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010064883.8A Pending CN111119757A (en) | 2020-01-20 | 2020-01-20 | Energy storage workover rig |
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| Country | Link |
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| CN (1) | CN111119757A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113006690A (en) * | 2021-04-19 | 2021-06-22 | 高邮浩翔石油机械有限公司 | Hydraulic energy storage vehicle-mounted drilling and repairing machine with emergency and power compensation functions |
| CN113006691A (en) * | 2021-04-19 | 2021-06-22 | 高邮浩翔石油机械有限公司 | Emergency and power compensation system and method for hydraulic energy storage vehicle-mounted drilling and repairing machine |
-
2020
- 2020-01-20 CN CN202010064883.8A patent/CN111119757A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113006690A (en) * | 2021-04-19 | 2021-06-22 | 高邮浩翔石油机械有限公司 | Hydraulic energy storage vehicle-mounted drilling and repairing machine with emergency and power compensation functions |
| CN113006691A (en) * | 2021-04-19 | 2021-06-22 | 高邮浩翔石油机械有限公司 | Emergency and power compensation system and method for hydraulic energy storage vehicle-mounted drilling and repairing machine |
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