CN105811518A - Lithium titanate battery energy storage and power supply system for workover rig and control method of lithium titanate battery energy storage and power supply system for workover rig - Google Patents
Lithium titanate battery energy storage and power supply system for workover rig and control method of lithium titanate battery energy storage and power supply system for workover rig Download PDFInfo
- Publication number
- CN105811518A CN105811518A CN201610291934.4A CN201610291934A CN105811518A CN 105811518 A CN105811518 A CN 105811518A CN 201610291934 A CN201610291934 A CN 201610291934A CN 105811518 A CN105811518 A CN 105811518A
- Authority
- CN
- China
- Prior art keywords
- lithium titanate
- titanate battery
- workover rig
- power supply
- supply system
- Prior art date
- 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.)
- Granted
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 67
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 67
- 238000004146 energy storage Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000005553 drilling Methods 0.000 claims description 20
- 230000005611 electricity Effects 0.000 claims description 13
- 238000007667 floating Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000007599 discharging Methods 0.000 abstract description 2
- 230000002457 bidirectional effect Effects 0.000 abstract 3
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- H02J7/022—
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a lithium titanate battery energy storage and power supply system for a workover rig and a control method of the lithium titanate battery energy storage and power supply system for the workover rig. The power supply system comprises an AC/DC rectifier, an inverter unit, a DC/AC bidirectional direct current converter and a lithium titanate battery. The alternating current side of the AC/DC rectifier is connected with a power grid. The direct current side of the AC/DC rectifier is connected with the direct current side of the inverter unit and one direct current side of the DC/AC bidirectional direct current converter through a direct current bus. The alternating current side of the inverter unit is connected with a motor. The other direct current side of the DC/AC bidirectional direct current converter is connected with the lithium titanate battery. The control method comprises steps of controlling the charging and discharging states of the lithium titanate battery according to drill pipe pull-out work, hovering work and drill pipe run-in work of the workover rig. According to the system and the method, the high power motor can work in full load or even overload under a low volume transformer, the voltage of the power grid is stabilized, the interferences brought to the power grid due to frequency starting are reduced, the energy consumption of the device can be reduced, and the system and the method are convenient to migrate, popularize and apply to engineering devices such as hoisting devices.
Description
Technical field
The present invention relates to oil equipment field, be specifically related to a kind of lithium titanate battery energy storage for power supply system for workover rig and control method thereof.
Background technology
Workover rig is a kind of oil-water well workover treatment equipment that oil field is widely used, as shown in Figure 1.At present, traditional workover rig power of China adopts Diesel engine, there is the three-hypers problems such as workover treatment high energy consumption, high noisy, high pollution.For solving these problems, the net electricity workover rig of domestic research and development in recent years illustrates stronger superiority with low energy consumption, low noise, low stain.But net electricity workover rig power taking is subject to the restriction of well site of oil field condition of power supply.
Existing well site, oil field condition of power supply is to design for oil pumper need for electricity, and pumping-unit motor volume electrical power is usually no more than 60KW.And workover rig workover treatment needs the power match of more than 100KW, the requirement of normal hoisting tubing string weight and speed could be met, reach hoisting power and the level of traditional work machine.The electrical machinery of active force of existing net electricity working rig has the existing condition of power supply around well site to be designed as about 50KW, and operating speed, lower than traditional work speed, affects operation timeliness；Also there is power of motor to be designed as more than 100KW, but need erection high-tension transformer.Therefore, it is necessary to adopt battery energy storage technology on net electricity working rig product, utilize the power supply capacity of well site of oil field about 50KW, meet the motor demand of more than 100KW.
Adopt the workover rig of existing driving device, be primarily present following shortcoming:
(1) existing diesel oil workover rig energy conversion efficiency is low, and oil consumption is costly high, and noise and exhaust emission are big；
(2) electric workover rig is limited by well site transformer capacity, and be equipped with power of motor is less, the Shortcomings of operation timeliness:
(3) emerging with high costs based on the net electricity workover rig that super capacitor is energy storage device, energy density is low, and terminal voltage skewness, reliability is poor.
Summary of the invention
In view of this, it is an object of the invention to provide one to be capable of high power motor and even work overloadingly at full capacity under low capacity transformator, stablize line voltage, reduce the effect of the interference that electrical network is caused by frequent starting, can reducing equipment energy consumption, convenient transplanting promotes the use of the lithium titanate battery energy storage for power supply system for workover rig and control method thereof used on the engineering equipments such as other lifting.
The present invention provides a kind of lithium titanate battery energy storage for power supply system for workover rig, including AC/DC commutator, inversion unit, DC/DC two-way DC converter and lithium titanate battery, the AC of described AC/DC commutator is connected with electrical network, the DC side of described AC/DC commutator is connected with a DC side of the DC side of inversion unit, DC/DC two-way DC converter respectively by dc bus, the AC of described inversion unit is connected with motor, and another DC side of described DC/DC two-way DC converter is connected with lithium titanate battery.
Preferably, the DC side of described inversion unit is also associated with resistance consumption branch road.
Preferably, described resistance consumption branch road includes the brake unit and the braking resistor that are connected in series, and the DC side of described inversion unit passes sequentially through brake unit, braking resistor ground connection.
Preferably, described DC/DC two-way DC converter is Buck/Boost topological structure.
The present invention also provides for the control method of a kind of lithium titanate battery energy storage for power supply system being previously used for workover rig, and step includes:
1) before well workover plays drilling rod operation, it is in net electricity charge mode, is lithium titanate battery charging by AC/DC commutator, DC/DC two-way DC converter；
2) rising after drilling rod operation starts in well workover and be in collaborative discharge mode, be that motor is powered by AC/DC commutator, inversion unit, lithium titanate battery is allowed to discharge through DC/DC two-way DC converter, inversion unit is that motor is powered simultaneously；
3) rise after drilling rod operation completes in well workover and be in floating charge pattern, it is that motor is powered by AC/DC commutator, inversion unit, detection grid power and workover rig auxiliary equipment consume power simultaneously, when grid power is more than predetermined threshold value or workover rig auxiliary equipment consumes power less than predetermined threshold value, then it is lithium titanate battery floating charge by AC/DC commutator, DC/DC two-way DC converter；
4) repair downhole tool operation start, motor output negative power time, then motor is exported negative power by DC/DC two-way DC converter be lithium titanate battery charge.
Preferably, described step 4) also include the step of detection lithium titanate battery charged state, if lithium titanate battery fills with electricity, then motor is exported negative power and carries out, by resistance consumption branch road, consumption of discharging.
The present invention has an advantage that for the lithium titanate battery energy storage for power supply system of workover rig
1, the present invention includes AC/DC commutator, inversion unit, DC/DC two-way DC converter and lithium titanate battery, the AC of AC/DC commutator is connected with electrical network, the DC side of AC/DC commutator by dc bus respectively with the DC side of inversion unit, one DC side of DC/DC two-way DC converter is connected, the AC of inversion unit is connected with motor, another DC side of DC/DC two-way DC converter is connected with lithium titanate battery, it is capable of high power motor even to work overloadingly at full capacity under low capacity transformator, stablize line voltage, reduce the effect of the interference that electrical network is caused by frequent starting, equipment energy consumption can be reduced, facilitate transplanting to promote the use of the engineering equipments such as other lifting use.
2, the present invention adopts lithium titanate battery to play energy supplement energy device during drilling rod operation as well workover, energy storage device cost is greatly reduced, increase the reserve power of single, improve reliability, and lithium titanate battery all has comprehensive advantage in cryogenic property, service life, safety, energy density, it is highly suitable as the electrical source of power of electricity-electricity mixed power workover rig.
3, the present invention includes AC/DC commutator, inversion unit, DC/DC two-way DC converter and lithium titanate battery, adopts modularized design, facilitates transplanting to promote the use of and uses on the engineering equipments such as other lifting.
For the control method of the lithium titanate battery energy storage for power supply system of workover rig, the present invention has an advantage that the present invention (removes drilling rod for the control method of the lithium titanate battery energy storage for power supply system of workover rig according to workover rig job state, hovering) automatically control the discharge and recharge of lithium titanate battery with workover rig load variations, this control mode, can when well site transformer capacity be less, power input multiplication when the power back-off functional realiey oil pipe utilizing lithium titanate battery promotes, meet the requirement of operation timeliness, make full use of well site power grid energy simultaneously, electric energy continues equilibrium input；When operation is transferred in well workover, lithium titanate battery is operated in charged state, it is possible to absorbs and transfers regenerative electric energy during operation, reaches energy-conservation purpose to greatest extent, thus reaching balanced well site electric energy, reducing voltage pulsation, improves the final goal of power factor.
Accompanying drawing explanation
The accompanying drawing constituting the part of the present invention is used for providing a further understanding of the present invention, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the driving line chart of embodiment of the present invention lithium titanate battery energy storage for power supply system.
Fig. 2 is the parameter comparison diagram of lithium titanate battery and other batteries in the embodiment of the present invention.
Fig. 3 is electric workover rig working power curve.
Fig. 4 is the energy flow diagram of preproduction phase in the embodiment of the present invention.
Fig. 5 is the energy flow diagram playing the drilling rod stage in the embodiment of the present invention.
Fig. 6 is the energy flow diagram of suspension stages in the embodiment of the present invention.
Fig. 7 is the energy flow diagram in lower drilling rod stage in the embodiment of the present invention.
Description of reference numerals: 1, AC/DC commutator；2, inversion unit；3, DC/DC two-way DC converter；4, lithium titanate battery；5, motor；6, resistance consumption branch road；61, brake unit；62, braking resistor.
Detailed description of the invention
It should be noted that when not conflicting, the embodiment in the present invention and the feature in embodiment can be mutually combined.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As shown in Figure 1, the lithium titanate battery energy storage for power supply system for workover rig of the present embodiment includes AC/DC commutator 1, inversion unit 2, DC/DC two-way DC converter 3 and lithium titanate battery 4, the AC of AC/DC commutator 1 is connected with electrical network, the DC side of AC/DC commutator 1 is connected with a DC side of the DC side of inversion unit 2, DC/DC two-way DC converter 3 respectively by dc bus, the AC of inversion unit 2 is connected with motor 5, and another DC side of DC/DC two-way DC converter 3 is connected with lithium titanate battery 4.
The present embodiment adopt lithium titanate battery 4 play energy supplement energy device during drilling rod operation as well workover, energy storage device cost is greatly reduced, increase the reserve power of single, improve reliability, referring to Fig. 2, lithium titanate battery all has comprehensive advantage in cryogenic property, service life, safety, energy density, is highly suitable as the electrical source of power of electricity-electricity mixed power workover rig.
In the present embodiment, the DC side of inversion unit 2 is also associated with resistance consumption branch road 6.
In the present embodiment, resistance consumption branch road 6 includes the brake unit 61 and the braking resistor 62 that are connected in series, and the DC side of inversion unit 2 passes sequentially through brake unit 61, braking resistor 62 ground connection.
In the present embodiment, DC/DC two-way DC converter 3 is Buck/Boost topological structure.
Referring to Fig. 3, the duty cycle of the workover treatment each time of workover rig is about 60s, includes successively: preproduction phase, drilling rod stage, suspension stages, lower drilling rod stage.For above-mentioned duty cycle, the present embodiment is for the control method of the lithium titanate battery energy storage for power supply system of workover rig, and step includes:
1) before well workover plays drilling rod operation, (preproduction phase) is in net electricity charge mode, is charged for lithium titanate battery 4 by AC/DC commutator 1, DC/DC two-way DC converter 3, referring to Fig. 4；In the present embodiment, net electrical power 45kw, preproduction phase charging 15min, lithium titanate battery 4 electric power storage 10kwh；
2) rising after drilling rod operation starts in well workover and be in collaborative discharge mode, powered for motor 5 by AC/DC commutator 1, inversion unit 2, lithium titanate battery 4 is allowed to discharge through DC/DC two-way DC converter 3, inversion unit 2 is powered for motor 5, referring to Fig. 5 simultaneously；In the present embodiment, net electrical power 45kw, the discharge power 45kw of lithium titanate battery 4, plays the general power >=90kw of drilling rod operation；
3) play (suspension stages) after drilling rod operation completes in well workover and be in floating charge pattern, powered for motor 5 by AC/DC commutator 1, inversion unit 2, detection grid power and workover rig auxiliary equipment consume power simultaneously, when grid power is more than predetermined threshold value or workover rig auxiliary equipment consumes power less than predetermined threshold value, then pass through AC/DC commutator 1, DC/DC two-way DC converter 3 is lithium titanate battery 4 floating charge, referring to Fig. 6；In the present embodiment, when net electrical power >=45kw or auxiliary equipment consume power≤45kw, the individually power supply of net electricity, lithium titanate battery 4 enters floating charge pattern according to loading condition.
4) repair downhole tool operation start, motor 5 export negative power time, then motor 5 is exported negative power and is charged for lithium titanate battery 4 by DC/DC two-way DC converter 3, referring to Fig. 7.
In the present embodiment, the power 90kw of motor 5, during lower drilling rod operation, motor 5 exports for negative power, i.e. effective generated output 45kw.When lower drilling rod operation continuously, lithium titanate battery 4 is fully charged, in order to ensure the effective consumption to motor 5 negative power, the present embodiment step 4) also include detection lithium titanate battery 4 charged state step, if lithium titanate battery 4 fills with electricity, then motor 5 is exported negative power and carries out electric discharge consumption by resistance consumption branch road 6.In sum, the present embodiment (removes drilling rod according to workover rig job state, hovering) automatically control the discharge and recharge of lithium titanate battery with workover rig load variations, thus to the compensation power of main frame between 45～50kw, achieve high power motor even to work overloadingly at full capacity under low capacity transformator, stablize line voltage, reduce the effect of the interference that electrical network is caused by converter frequent starting, and this control mode, can when well site transformer capacity be less, power input multiplication when the power back-off functional realiey oil pipe utilizing lithium titanate battery promotes, meet the requirement of operation timeliness, make full use of well site power grid energy simultaneously, electric energy continues equilibrium input；When operation is transferred in well workover, lithium titanate battery is operated in charged state, it is possible to absorbs and transfers regenerative electric energy during operation, reaches energy-conservation purpose to greatest extent, thus reaching balanced well site electric energy, reducing voltage pulsation, improves the final goal of power factor.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (6)
1. the lithium titanate battery energy storage for power supply system for workover rig, it is characterized in that: include AC/DC commutator (1), inversion unit (2), DC/DC two-way DC converter (3) and lithium titanate battery (4), the AC of described AC/DC commutator (1) is connected with electrical network, the DC side of described AC/DC commutator (1) by dc bus respectively with the DC side of inversion unit (2), one DC side of DC/DC two-way DC converter (3) is connected, the AC of described inversion unit (2) is connected with motor (5), another DC side of described DC/DC two-way DC converter (3) is connected with lithium titanate battery (4).
2. the lithium titanate battery energy storage for power supply system for workover rig according to claim 1, it is characterised in that: the DC side of described inversion unit (2) is also associated with resistance consumption branch road (6).
3. the lithium titanate battery energy storage for power supply system for workover rig according to claim 2, it is characterized in that: described resistance consumption branch road (6) includes the brake unit (61) and the braking resistor (62) that are connected in series, and the DC side of described inversion unit (2) passes sequentially through brake unit (61), braking resistor (62) ground connection.
4. the lithium titanate battery energy storage for power supply system for workover rig according to claim 3, it is characterised in that: described DC/DC two-way DC converter (3) is Buck/Boost topological structure.
5. a Claims 1 to 4 is used for described in any one the control method of the lithium titanate battery energy storage for power supply system of workover rig, it is characterised in that step includes:
1) before well workover plays drilling rod operation, it is in net electricity charge mode, is charged for lithium titanate battery (4) by AC/DC commutator (1), DC/DC two-way DC converter (3)；
2) rise after drilling rod operation starts in well workover and be in collaborative discharge mode, being powered for motor (5) by AC/DC commutator (1), inversion unit (2), lithium titanate battery (4) is allowed to discharge through DC/DC two-way DC converter (3) simultaneously, inversion unit (2) is powered for motor (5)；
3) rise after drilling rod operation completes in well workover and be in floating charge pattern, powered for motor (5) by AC/DC commutator (1), inversion unit (2), detection grid power and workover rig auxiliary equipment consume power simultaneously, when grid power is more than predetermined threshold value or workover rig auxiliary equipment consumes power less than predetermined threshold value, then it is lithium titanate battery (4) floating charge by AC/DC commutator (1), DC/DC two-way DC converter (3)；
4) repair downhole tool operation start, motor (5) output negative power time, then by motor (5) export negative power by DC/DC two-way DC converter (3) be lithium titanate battery (4) charging.
6. the control method of the lithium titanate battery energy storage for power supply system for workover rig according to claim 5, it is characterized in that, described step 4) also include detection lithium titanate battery (4) charged state step, if lithium titanate battery (4) fills with electricity, then motor (5) is exported negative power and carries out electric discharge consumption by resistance consumption branch road (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610291934.4A CN105811518B (en) | 2016-05-05 | 2016-05-05 | Lithium titanate battery energy storage for power supply system and its control method for workover rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610291934.4A CN105811518B (en) | 2016-05-05 | 2016-05-05 | Lithium titanate battery energy storage for power supply system and its control method for workover rig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105811518A true CN105811518A (en) | 2016-07-27 |
| CN105811518B CN105811518B (en) | 2019-03-05 |
Family
ID=56456201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610291934.4A Active CN105811518B (en) | 2016-05-05 | 2016-05-05 | Lithium titanate battery energy storage for power supply system and its control method for workover rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105811518B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786486A (en) * | 2016-12-22 | 2017-05-31 | 北京群菱能源科技有限公司 | A kind of mixed power supply system and its method for oil pumper |
| CN106972610A (en) * | 2017-04-12 | 2017-07-21 | 中国石油集团渤海石油装备制造有限公司 | Net electric power workover rig energy storage control system and its control method |
| CN107065521A (en) * | 2016-12-23 | 2017-08-18 | 上海致远绿色能源股份有限公司 | A kind of self-adaptation control method for the rectifier for accessing oil machine |
| CN107979169A (en) * | 2017-12-22 | 2018-05-01 | 珠海银隆电器有限公司 | Lithium titanate battery energy storage for power supply system and its control method for communication base station |
| US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751943A (en) * | 2012-04-24 | 2012-10-24 | 中国石油大学(北京) | Electronic control system of electric workover rig |
| CN103326452A (en) * | 2013-06-04 | 2013-09-25 | 中国石油化工股份有限公司 | Super-capacitor energy storage driving device of workover rig |
| CN103414253A (en) * | 2013-08-07 | 2013-11-27 | 天水电气传动研究所有限责任公司 | Recycling plant of petroleum electric drilling machine regenerative brake energy |
| CN205039552U (en) * | 2015-09-02 | 2016-02-17 | 国网上海市电力公司 | Energy storage system |
-
2016
- 2016-05-05 CN CN201610291934.4A patent/CN105811518B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751943A (en) * | 2012-04-24 | 2012-10-24 | 中国石油大学(北京) | Electronic control system of electric workover rig |
| CN103326452A (en) * | 2013-06-04 | 2013-09-25 | 中国石油化工股份有限公司 | Super-capacitor energy storage driving device of workover rig |
| CN103414253A (en) * | 2013-08-07 | 2013-11-27 | 天水电气传动研究所有限责任公司 | Recycling plant of petroleum electric drilling machine regenerative brake energy |
| CN205039552U (en) * | 2015-09-02 | 2016-02-17 | 国网上海市电力公司 | Energy storage system |
Non-Patent Citations (1)
| Title |
|---|
| 黄仁飞: "《钛酸锂电池在兆瓦级储能系统中的应用分析》", 《储能科学与技术》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786486A (en) * | 2016-12-22 | 2017-05-31 | 北京群菱能源科技有限公司 | A kind of mixed power supply system and its method for oil pumper |
| CN107065521A (en) * | 2016-12-23 | 2017-08-18 | 上海致远绿色能源股份有限公司 | A kind of self-adaptation control method for the rectifier for accessing oil machine |
| CN107065521B (en) * | 2016-12-23 | 2020-05-26 | 上海致远绿色能源股份有限公司 | Self-adaptive control method of rectifier connected into oil engine |
| CN106972610A (en) * | 2017-04-12 | 2017-07-21 | 中国石油集团渤海石油装备制造有限公司 | Net electric power workover rig energy storage control system and its control method |
| CN106972610B (en) * | 2017-04-12 | 2023-07-21 | 中国石油天然气集团有限公司 | Energy storage control system and control method for net electric power workover rig |
| CN107979169A (en) * | 2017-12-22 | 2018-05-01 | 珠海银隆电器有限公司 | Lithium titanate battery energy storage for power supply system and its control method for communication base station |
| US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105811518B (en) | 2019-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105811518A (en) | Lithium titanate battery energy storage and power supply system for workover rig and control method of lithium titanate battery energy storage and power supply system for workover rig | |
| CN204156591U (en) | Elevator emergency energy saver | |
| CN106276445A (en) | A kind of elevator drives control, energy saving integrated system and method | |
| CN107128196A (en) | mining electric locomotive wireless power supply system | |
| CN201504219U (en) | Energy-storage pumping unit power saving device with super capacitor | |
| CN204905907U (en) | Insert electric formula electric automobile and on -vehicle charging source system thereof | |
| CN205544468U (en) | Storage battery car power supply system based on mix generating line | |
| CN103779939B (en) | A kind of supply vehicle and electric power system | |
| CN107947212A (en) | A kind of energy-storage system and recovery method formed based on ultracapacitor and storage battery | |
| CN205489747U (en) | Take brill / workover rig energy storage electrical system of direct current microgrid and potential energy recovery | |
| CN103326452B (en) | Workover rig super capacitor energy driving means | |
| CN209212226U (en) | A kind of sidetracked hole drilling machine electric control gear of super capacitor energy-storage | |
| CN203377683U (en) | Recycling apparatus of oil-electric-drilling-machine regenerative braking energy | |
| CN207453897U (en) | Super capacitor power battery mixes storage well electricity workover rig electric control gear | |
| CN111119757A (en) | Energy storage workover rig | |
| CN104882889A (en) | Composite circuit integrating rectification, active power filtering and energy feedback braking functions | |
| CN204144996U (en) | A kind of multiple control lift energy feedback net arrangement with super capacitor | |
| CN203289378U (en) | Electric workover rig control system based on supercapacitor power compensation | |
| CN205472296U (en) | Harbor hoisting machinery energy-saving system using diesel generator set as power source | |
| CN203166599U (en) | Topological structure for main circuit of charging station of electric automobile | |
| CN203707864U (en) | Novel hybrid-energy 48V direct-current frequency-conversion power generation system | |
| CN203456928U (en) | Super-capacitor energy storage driving device for workover rig | |
| CN207150225U (en) | A kind of elevator energy recovery system based on high voltage platform | |
| CN102303798B (en) | Energy-saving method of energy-saving elevator | |
| CN204720986U (en) | The compound circuit of a kind of integrated rectification, active power filtering and energy back braking function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181205 Address after: 410100 Room 101, Unit 1, East of East Third Line and South of Liangtang Road, Changsha Economic and Technological Development Zone, Hunan Province Applicant after: Sany Group Co Ltd Hunan branch Address before: 410100 31 industrial city, Changsha economic and Technological Development Zone, Hunan Applicant before: HUNAN SANY PETROLEUM TECHNOLOGY CO., LTD. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201222 Address after: 412005 Room 201, Dingshan Road office building, Shifeng District, Zhuzhou City, Hunan Province Patentee after: HUNAN SANY PETROLEUM TECHNOLOGY Co.,Ltd. Address before: 410100 Room 101, Unit 1, East of East Third Line and South of Liangtang Road, Changsha Economic and Technological Development Zone, Hunan Province Patentee before: SANY GROUP Co.,Ltd. HUNAN BRANCH |
|
| TR01 | Transfer of patent right |