WO2020104088A1 - Système de turbine à gaz et procédé pour composants consommateurs de courant continu - Google Patents
Système de turbine à gaz et procédé pour composants consommateurs de courant continuInfo
- Publication number
- WO2020104088A1 WO2020104088A1 PCT/EP2019/076202 EP2019076202W WO2020104088A1 WO 2020104088 A1 WO2020104088 A1 WO 2020104088A1 EP 2019076202 W EP2019076202 W EP 2019076202W WO 2020104088 A1 WO2020104088 A1 WO 2020104088A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas turbine
- turbine engine
- engine system
- output
- mobile gas
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 16
- 238000003860 storage Methods 0.000 claims description 9
- 241000555745 Sciuridae Species 0.000 claims description 7
- 239000007858 starting material Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- RLQJEEJISHYWON-UHFFFAOYSA-N flonicamid Chemical compound FC(F)(F)C1=CC=NC=C1C(=O)NCC#N RLQJEEJISHYWON-UHFFFAOYSA-N 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/2607—Surface equipment specially adapted for fracturing operations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/32—Arrangement, mounting, or driving, of auxiliaries
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/36—Power transmission arrangements between the different shafts of the gas turbine plant, or between the gas-turbine plant and the power user
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/70—Application in combination with
- F05D2220/76—Application in combination with an electrical generator
- F05D2220/766—Application in combination with an electrical generator via a direct connection, i.e. a gearless transmission
Definitions
- the present disclosure relates to a mobile gas turbine engine system and method and particularly, but not exclusively, relates to a mobile gas turbine engine system and method in which a gas turbine engine is directly coupled to a high speed electrical generator with a power electronic AC to DC converter.
- a mobile gas turbine engine system comprising:
- a gas turbine engine having a turbine and an output shaft directly connected to the turbine;
- a high speed electrical generator having a shaft that is directly coupled to or coterminous with the output shaft of the gas turbine engine, the high speed electrical generator being configured to generate an Alternating Current (AC) output;
- AC Alternating Current
- a power electronic rectifier configured to convert the AC output from the high speed electrical generator to a Direct Current (DC) output; and a DC supply rail configured to receive the DC output from the power electronic rectifier, wherein the DC supply rail has at least one terminal connected thereto, at least one DC consuming unit being connectable to the at least one terminal.
- DC Direct Current
- a power output of the gas turbine engine may be above 3,000 kW.
- the generator shaft may rotate at a speed greater than 7,000 rpm.
- the generator shaft may rotate at rotational speeds in excess of 10,000 rpm and even in excess of 14,000 rpm.
- the shaft of the high speed electrical generator may be connected to the output shaft of the gas turbine engine without a gearbox therebetween.
- the gas turbine engine may further comprise a compressor.
- the output shaft may or may not be connected to the compressor. Accordingly, the output shaft may extend through the gas turbine engine or the output shaft may only connect to a power turbine of the gas turbine engine.
- the gas turbine engine may comprise a further turbine provided upstream of the turbine. The further turbine may be connected to the compressor or a further compressor downstream of the compressor.
- the high speed electrical generator may comprise a squirrel cage rotor.
- the high speed electrical generator may comprise a motor having the squirrel cage rotor.
- the components of the mobile gas turbine engine system may be provided on a common structural platform.
- the DC supply rail may also be provided on the common structural platform, although the DC supply rail may extend beyond the platform.
- the components of the mobile gas turbine engine system may be provided in a container, such as a shipping container or any other similar container. Accordingly, the mobile gas turbine engine system may be transportable on a lorry, truck or trailer thereof.
- the mobile gas turbine engine system may further comprise a storage battery connected to the DC supply rail.
- the storage battery may store electrical power generated by the gas turbine engine and may provide additional power when required, e.g. for a peak load or when the gas turbine engine is temporarily unavailable.
- the high speed electrical generator may be configured to start the gas turbine engine upon the provision of power to the DC supply rail.
- the high speed electrical generator may be the only starter for starting the gas turbine engine.
- the mobile gas turbine engine system may further comprise the at least one DC consuming unit.
- the DC consuming unit may comprise a hydraulic fracturing pump system.
- the hydraulic fracturing pump system may comprise at least one motor and at least one pump.
- the at least one motor may drive the at least one pump.
- the hydraulic fracturing pump system may comprise a DC to AC converter that converts DC power from the DC supply rail to AC for the at least one motor.
- the DC consuming unit may comprise a data centre.
- the data centre may comprise a DC to AC or DC to DC converter to provide either AC or DC power required by the data centre.
- the mobile gas turbine engine system may provide back-up power for the data centre.
- the DC consuming unit may comprise a DC to AC converter for a power grid connection.
- the mobile gas turbine engine system may provide additional power for a grid network.
- the mobile gas turbine engine system mentioned above may be used in hydraulic fracturing.
- a method comprising: operating a gas turbine engine having a turbine and an output shaft directly connected to the turbine;
- the DC supply rail has at least one terminal connected thereto, at least one DC consuming unit being connectable to the at least one terminal.
- the output shaft may rotate at a speed greater than 7,000 rpm (e.g. above 10,000 rpm or above 14,000 rpm).
- a power output of the gas turbine engine may be above 3,000 kW.
- the method may further comprise connecting at least one DC consuming unit to the at least one terminal.
- the method may further comprise providing power from the DC supply rail to a motor connected to a hydraulic fracturing pump, a data centre, a DC to AC converter for a power grid connection, or any other DC consuming unit.
- Figure 1 is a schematic diagram depicting a mobile gas turbine engine system according to an example of the present disclosure.
- Figure 2 is a flow chart depicting a method for a mobile gas turbine engine system according to an example of the present disclosure.
- the present disclosure relates to a mobile gas turbine engine system 10 comprising a gas turbine engine 20, a high speed electrical generator 30, a power electronic converter (e.g. rectifier) 40 and a DC supply rail 50.
- a power electronic converter e.g. rectifier
- the gas turbine engine 20 has a turbine 21 and an output shaft 22 directly connected to the turbine 21.
- the gas turbine engine 20 further comprises a compressor 23.
- the output shaft 22 may or may not be connected to the compressor 23. Accordingly, the output shaft 22 may extend through the gas turbine engine 20 or the output shaft 22 may only connect to a power turbine of the gas turbine engine.
- the gas turbine engine may comprise a further turbine provided upstream of the turbine 21.
- the further turbine may be connected to the compressor 23 or a further compressor downstream of the compressor 23.
- a power output of the gas turbine engine (e.g. the motive power at the output shaft 22) may be above 3,000 kW.
- the high speed electrical generator 30 has a shaft 31 that is directly coupled to or coterminous with the output shaft 22 of the gas turbine engine 20.
- the shaft 31 of the high speed electrical generator may be connected to (or coterminous with) the output shaft 22 of the gas turbine engine without a gearbox therebetween.
- the shaft 31 and output shaft 22 rotate at the same speed.
- the generator shaft 31 may rotate at a speed greater than 7,000 rpm (and“high speed” may refer to such speeds).
- the generator shaft 31 may rotate at rotational speeds in excess of 10,000 rpm and even in excess of 14,000 rpm. Such high speeds are desirable for efficient operation of the gas turbine engine 20.
- the high speed electrical generator 30 is configured to generate an Alternating Current (AC).
- the AC output may be at a frequency above 50 or 60 Hz and may in fact be significantly higher than these typical power distribution frequencies, e.g. due to the high rotational speed of the shaft 31.
- the high speed electrical generator 30 may comprise a squirrel cage rotor rotatably provided within a stator.
- the high speed electrical generator 30 may in fact be a motor, but may operate as a generator when rotation of the rotor is driven.
- the squirrel cage rotor may comprise a cylinder (e.g. of steel laminations) with substantially longitudinally extending conductors (e.g. aluminium or copper) embedded in or beneath its surface.
- Other types of generators are also contemplated (e.g. generators with permanent magnet).
- the inventors of the present invention have realised that a squirrel cage motor is well suited to use as a high speed generator thanks to its rotor construction.
- the use of a squirrel cage rotor has an efficiency penalty, the overall efficiency of the system 10 is increased because a gearbox between the gas turbine engine 20 and generator 30 can be omitted.
- the power electronic rectifier 40 is configured to convert the AC output from the high speed electrical generator 30 to a Direct Current (DC) output.
- the DC supply rail 50 receives the DC output from the power electronic rectifier 40.
- the components of the mobile gas turbine engine system 10 (such as the gas turbine engine 20, high speed generator 30 and power electronic converter 40) may be provided on a common structural platform, such as a flatbed.
- the DC supply rail 50 and terminals 52 may also be provided on the common structural platform, although the DC supply rail may extend beyond the platform.
- the components of the mobile gas turbine engine system 10 may be provided in a container, such as a shipping container or any other similar container or housing. Accordingly, the mobile gas turbine engine system 10 may be transportable on a lorry, truck or trailer thereof.
- the high speed electrical generator 30 may be configured to start the gas turbine engine 20 upon the provision of power to the DC supply rail 50.
- the high speed electrical generator 30 may be the only starter for starting the gas turbine engine 20 or may be in addition to a conventional start system. Accordingly, the high-speed generator 30 and associated power electronics may be used to provide the starting power for the gas turbine engine 20, potentially eliminating the conventional start system. This provides an added benefit or much increased starter power capability allowing very fast start-up for standby generation applications.
- the system 10 may further comprise a storage battery 60 connected to the DC supply rail 50.
- the storage battery 60 may store electrical power generated by the gas turbine engine 20 and generator 30.
- the storage battery 60 may provide additional power when required, e.g. for a peak load or when the gas turbine engine 20 is temporarily unavailable.
- the storage battery 60 may provide power to a grid or driven loads on a no break basis in the event of a grid failure. When the generator 30 is running a further no break transition to generator derived power may be facilitated.
- the storage battery 60 may also at least partially provide the power to start the gas turbine engine 20.
- the DC supply rail 50 has at least one terminal 52 for connecting one or more DC consuming units 70.
- the generator 30 may be used in conjunction with power electronics to drive a DC connected distributed load.
- one or more of the DC consuming units 70 may comprise a hydraulic fracturing pump system 71 for use in hydraulic fracturing (“fracking”) during oil and gas production.
- the hydraulic fracturing pump system 71 may comprise at least one motor 71a to drive at least one pump 71b.
- the hydraulic fracturing pump system 71 may comprise a DC to AC converter 71c that converts DC power from the DC supply rail 50 to AC for the at least one motor 71a.
- the DC consuming unit 70 may comprise a data centre 72.
- the data centre may comprise a DC to AC or DC to DC converter 72a to provide either AC or DC power required by the data centre 72.
- the mobile gas turbine engine system 10 may provide back-up power for the data centre 72.
- the mobile gas turbine engine system 10 may also be the prime supplier of power for the data centre 72.
- the DC consuming unit 70 may comprise a DC to AC converter 73a for a power grid connection 73.
- the mobile gas turbine engine system may provide additional power for a grid network.
- the mobile gas turbine engine system 10 may thus provide back-up power for the grid network and may operate in conjunction with the storage battery 60 to provide strategic support for the grid network.
- DC consuming units 70 Although several examples of DC consuming units 70 have been described above, it will be appreciated that other DC consuming devices are also contemplated. Also, one or more of the different types of DC consuming units 70 may be used with the same DC rail 50. In each case it may be desirable to distribute the power as direct current (DC) and utilise power electronics to connect the driven load.
- DC direct current
- the present disclosure relates to a method 100 comprising a first block 101 in which the gas turbine engine 20 is operated.
- a second block 102 the high speed electrical generator 30 is driven.
- the high speed electrical generator 30 generates an AC output.
- the AC output from the high speed electrical generator 30 is converted to a DC output with the power electronic rectifier 40.
- the DC supply rail 50 is supplied with the DC output from the power electronic rectifier 40.
- 105 may not necessarily be carried out sequentially and may be carried out concurrently.
- the method 100 may further comprise connecting at least one DC consuming unit 70 to the at least one terminal 52.
- the method 100 may further comprise providing power from the DC supply rail 50 to the motor 71a (e.g. via the DC to AC converter 71c) connected to the hydraulic fracturing pump 71b; a data centre 72 (e.g. via the converter 72a); a DC to AC converter 73 for a power grid connection; and/or any other DC consuming unit.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
L'invention concerne un système de moteur à turbine à gaz mobile comprenant : un moteur à turbine à gaz comportant une turbine et un arbre de sortie directement relié à la turbine, une sortie de puissance du moteur à turbine à gaz étant supérieure à 3 000 kW; un générateur électrique à grande vitesse comportant un arbre qui est directement couplé ou contigu à l'arbre de sortie du moteur à turbine à gaz, le générateur électrique à grande vitesse étant configuré pour générer une sortie en courant alternatif à l'aide de l'arbre tournant à une vitesse supérieure à 7000 rpm; un redresseur électronique de puissance configuré pour convertir la sortie CA du générateur électrique à grande vitesse en une sortie CC; et un rail d'alimentation CC configuré pour recevoir la sortie CC du redresseur électronique de puissance, le rail d'alimentation CC ayant au moins une borne connectée à ce dernier, au moins une unité de consommation CC pouvant être connectée à ladite borne.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1819099.1A GB2579207A (en) | 2018-11-23 | 2018-11-23 | A gas turbine system and method for direct current consuming components |
GB1819099.1 | 2018-11-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020104088A1 true WO2020104088A1 (fr) | 2020-05-28 |
Family
ID=65024423
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2019/076202 WO2020104088A1 (fr) | 2018-11-23 | 2019-09-27 | Système de turbine à gaz et procédé pour composants consommateurs de courant continu |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB2579207A (fr) |
WO (1) | WO2020104088A1 (fr) |
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US10954770B1 (en) | 2020-06-09 | 2021-03-23 | Bj Energy Solutions, Llc | Systems and methods for exchanging fracturing components of a hydraulic fracturing unit |
US10961912B1 (en) | 2019-09-13 | 2021-03-30 | Bj Energy Solutions, Llc | Direct drive unit removal system and associated methods |
US10961908B1 (en) | 2020-06-05 | 2021-03-30 | Bj Energy Solutions, Llc | Systems and methods to enhance intake air flow to a gas turbine engine of a hydraulic fracturing unit |
US10961914B1 (en) | 2019-09-13 | 2021-03-30 | BJ Energy Solutions, LLC Houston | Turbine engine exhaust duct system and methods for noise dampening and attenuation |
US10968837B1 (en) | 2020-05-14 | 2021-04-06 | Bj Energy Solutions, Llc | Systems and methods utilizing turbine compressor discharge for hydrostatic manifold purge |
US10989180B2 (en) | 2019-09-13 | 2021-04-27 | Bj Energy Solutions, Llc | Power sources and transmission networks for auxiliary equipment onboard hydraulic fracturing units and associated methods |
US11002189B2 (en) | 2019-09-13 | 2021-05-11 | Bj Energy Solutions, Llc | Mobile gas turbine inlet air conditioning system and associated methods |
US11015536B2 (en) | 2019-09-13 | 2021-05-25 | Bj Energy Solutions, Llc | Methods and systems for supplying fuel to gas turbine engines |
US11015594B2 (en) | 2019-09-13 | 2021-05-25 | Bj Energy Solutions, Llc | Systems and method for use of single mass flywheel alongside torsional vibration damper assembly for single acting reciprocating pump |
US11022526B1 (en) | 2020-06-09 | 2021-06-01 | Bj Energy Solutions, Llc | Systems and methods for monitoring a condition of a fracturing component section of a hydraulic fracturing unit |
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US11193360B1 (en) | 2020-07-17 | 2021-12-07 | Bj Energy Solutions, Llc | Methods, systems, and devices to enhance fracturing fluid delivery to subsurface formations during high-pressure fracturing operations |
US11208953B1 (en) | 2020-06-05 | 2021-12-28 | Bj Energy Solutions, Llc | Systems and methods to enhance intake air flow to a gas turbine engine of a hydraulic fracturing unit |
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US11415125B2 (en) | 2020-06-23 | 2022-08-16 | Bj Energy Solutions, Llc | Systems for utilization of a hydraulic fracturing unit profile to operate hydraulic fracturing units |
US11428165B2 (en) | 2020-05-15 | 2022-08-30 | Bj Energy Solutions, Llc | Onboard heater of auxiliary systems using exhaust gases and associated methods |
US11473413B2 (en) | 2020-06-23 | 2022-10-18 | Bj Energy Solutions, Llc | Systems and methods to autonomously operate hydraulic fracturing units |
US11560845B2 (en) | 2019-05-15 | 2023-01-24 | Bj Energy Solutions, Llc | Mobile gas turbine inlet air conditioning system and associated methods |
US11608725B2 (en) | 2019-09-13 | 2023-03-21 | Bj Energy Solutions, Llc | Methods and systems for operating a fleet of pumps |
US11624326B2 (en) | 2017-05-21 | 2023-04-11 | Bj Energy Solutions, Llc | Methods and systems for supplying fuel to gas turbine engines |
US11635074B2 (en) | 2020-05-12 | 2023-04-25 | Bj Energy Solutions, Llc | Cover for fluid systems and related methods |
US11639654B2 (en) | 2021-05-24 | 2023-05-02 | Bj Energy Solutions, Llc | Hydraulic fracturing pumps to enhance flow of fracturing fluid into wellheads and related methods |
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US11817703B2 (en) | 2021-02-09 | 2023-11-14 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Electrical system for mobile power generation device and mobile power generation device |
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2018
- 2018-11-23 GB GB1819099.1A patent/GB2579207A/en not_active Withdrawn
-
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