WO2021081798A1 - Semi-remorque de fracturation à entraînement électrique à pompe unique et moteur unique - Google Patents

Semi-remorque de fracturation à entraînement électrique à pompe unique et moteur unique Download PDF

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Publication number
WO2021081798A1
WO2021081798A1 PCT/CN2019/114304 CN2019114304W WO2021081798A1 WO 2021081798 A1 WO2021081798 A1 WO 2021081798A1 CN 2019114304 W CN2019114304 W CN 2019114304W WO 2021081798 A1 WO2021081798 A1 WO 2021081798A1
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WO
WIPO (PCT)
Prior art keywords
unit
plunger pump
semi
electric drive
pump
Prior art date
Application number
PCT/CN2019/114304
Other languages
English (en)
Chinese (zh)
Inventor
崔树桢
张日奎
常胜
Original Assignee
烟台杰瑞石油装备技术有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 烟台杰瑞石油装备技术有限公司 filed Critical 烟台杰瑞石油装备技术有限公司
Priority to PCT/CN2019/114304 priority Critical patent/WO2021081798A1/fr
Priority to CA3159593A priority patent/CA3159593A1/fr
Publication of WO2021081798A1 publication Critical patent/WO2021081798A1/fr
Priority to US17/733,922 priority patent/US11746636B2/en
Priority to US17/884,358 priority patent/US11680474B2/en
Priority to US18/311,042 priority patent/US20230279762A1/en
Priority to US18/360,678 priority patent/US20240035363A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • 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

Definitions

  • the invention relates to the technical field of electric drive fracturing equipment, in particular to a single-unit single-pump electric drive fracturing semi-trailer.
  • the first is that the diesel engine is connected to the gearbox to drive the fracturing plunger pump via the drive shaft.
  • the power source is a diesel engine
  • the transmission is a gearbox and a drive shaft
  • the actuator is a plunger pump.
  • the diesel engine drives the gearbox to drive the plunger pump via the drive shaft, which is large in size, heavy in weight, limited in transportation and low in power density.
  • the second is that the motor is connected to the drive shaft or the coupling to drive the plunger pump.
  • the power source is an electric motor
  • the transmission device is a transmission shaft or coupling
  • the actuator is a plunger pump, which is an electric drive fracturing.
  • Electric drive fracturing is relatively widely used in some places with relatively complete power facilities.
  • Existing electric drive fracturing equipment is usually equipped with special power supply equipment to provide driving power.
  • Power supply equipment and electric drive fracturing The equipment is usually one-to-one, or a high-power power supply equipment drags several electric fracturing equipment (hereinafter referred to as one-to-many), but whether it is one-to-one or one-to-many, in actual use at the well site, It takes too much time to arrange the electric drive fracturing equipment and power supply equipment (that is, the electric drive fracturing equipment and the power supply equipment need to be used together); it is also necessary to connect each electric drive fracturing equipment to the power supply equipment to make The electric drive fracturing equipment enters the working state; the above processes are relatively time-consuming and labor-intensive, and there are many connection cables between the equipment, which is relatively cumbersome.
  • the purpose of the present invention overcomes the shortcomings of the prior art and provides a single-unit single-pump electric drive fracturing semi-trailer, which optimizes the integration of the traditional power supply semi-trailer and the fracturing semi-trailer, and realizes that a semi-trailer has both power supply and fracturing This function does not require power supply semi-trailer and fracturing semi-trailer to be used as a complete set.
  • the power end shell of the five-cylinder plunger pump adopts an integral welded structure, which makes the structure of the power end assembly stronger, better support stability, and can reduce the vibration of the whole pump.
  • the distance between the cylinders of the five-cylinder plunger pump is 13-14in, which provides protection for the high-power output of the five-cylinder plunger pump.
  • the high-power five-cylinder plunger pump can effectively solve the narrow area and required fracturing of the shale gas fracturing well site.
  • the problem of more equipment can reduce the use of equipment and facilitate the layout of the well site.
  • the multi-point support design for the crankcase, crosshead box and hydraulic end assembly can improve the support strength of the five-cylinder plunger pump, reduce vibration, better ensure high-load operation, and run more smoothly.
  • a single-unit single-pump electric drive fracturing semi-trailer including a semi-trailer body, a plunger pump, a radiator, a power supply unit and a motor, the power supply unit, the motor, and the radiator It is integrated with the plunger pump on the semi-trailer body, the motor is one, the radiator is one, and the plunger pump is one.
  • the power supply unit provides power to the motor, the motor is connected to the plunger pump, and the radiator is the plunger pump.
  • Lubricating oil provides cooling.
  • the power supply unit includes a transformer unit and a variable frequency unit, the variable frequency unit is connected to the transformer unit, the transformer unit is provided at one end of the semi-trailer body close to the motor, and the variable frequency unit is provided at the end of the semi-trailer body.
  • the variable frequency unit is connected to the transformer unit, the transformer unit is provided at one end of the semi-trailer body close to the motor, and the variable frequency unit is provided at the end of the semi-trailer body.
  • the transformer unit has a cabin structure, and a high-voltage switch and a transformer are arranged in the cabin, and the high-voltage switch is connected to the transformer.
  • the frequency conversion unit is a cabin structure, and a frequency converter is arranged in the frequency conversion unit cabin, the input end of the frequency converter is connected to the voltage transformation unit, and the output end of the frequency converter is connected to the motor.
  • the plunger pump is a five-cylinder plunger pump.
  • the five-cylinder plunger pump includes a power end assembly, a hydraulic end assembly, and a reduction box assembly. One end of the power end assembly is connected to the hydraulic end assembly. The end assembly is connected. The other end of the power end assembly is connected to the reduction box assembly.
  • the power end assembly includes a crankcase, a crosshead case and a spacer, the crankcase, the crosshead case and The spacers are connected in sequence.
  • the stroke of the five-cylinder plunger pump is 10" or more.
  • the power of the five-cylinder plunger pump is above 5000 hp.
  • the power of the five-cylinder plunger pump is 7000 hp.
  • the cylinder spacing of the five-cylinder plunger pump is 13-14 inches.
  • crankcase body and the crosshead box body are integrally welded to form a power end shell, and the power end shell is connected to the spacer frame.
  • the power end shell includes a vertical plate, a bearing seat, a front end plate, and a rear cover plate.
  • the bottom plate, the support plate and the upper cover plate, the number of the vertical plates is 6, the number of the bearing seats is 6, one vertical plate is connected to a bearing seat, and the 6 vertical plates are arranged in parallel to form a power end cavity,
  • a bottom plate is installed at the bottom of the power end cavity, an upper cover plate is installed on the top of the power end cavity, a front end plate is installed at the front end of the power end cavity, and a front end plate is installed at the rear end of the power end cavity
  • the back cover is provided with a supporting plate between two adjacent vertical plates arranged in parallel.
  • crankshaft support body is provided at the bottom of the crankcase body, and the crankshaft support body is used to support the crankshaft case body.
  • a crosshead support body is provided at the bottom of the crosshead box body, and the crosshead support body is used to support the crosshead box body.
  • the bottom of the spacer is provided with a hydraulic support body, and the hydraulic support body is used to support the hydraulic end assembly.
  • the present invention has the beneficial effect of optimizing the integration of traditional power supply semi-trailer and fracturing semi-trailer, realizing that one semi-trailer has the functions of power supply and fracturing at the same time, without the need for power supply semi-trailer and fracturing.
  • the semi-trailer is used as a complete set, which is more flexible in actual use, greatly optimizing the layout of oil and gas field wellsites; convenient transportation; only a set of high-voltage cables can be connected to high-voltage power supply to reach the working state, and the wiring installation is faster; the electric drive fracturing is compared with diesel Drive fracturing, with low noise and no exhaust emission pollution; the drive source is electricity, which is cheaper than diesel.
  • the power end shell of the five-cylinder plunger pump adopts an integral welded structure, which makes the structure of the power end assembly stronger, better support stability, and can reduce the vibration of the whole pump.
  • the distance between the cylinders of the five-cylinder plunger pump is 13-14in, which provides protection for the high-power output of the five-cylinder plunger pump.
  • the high-power five-cylinder plunger pump can effectively solve the small area of shale gas fracturing well site and the required fracturing.
  • the problem of more equipment can reduce the use of equipment and facilitate the layout of the well site.
  • the multi-point support design for the crankcase, crosshead box and hydraulic end assembly can improve the support strength of the five-cylinder plunger pump, reduce vibration, and better ensure high-load operation and more stable operation.
  • Figure 1 is a schematic diagram of a single-unit single-pump electric drive fracturing semi-trailer.
  • Figure 2 is a schematic diagram of the structure of a five-cylinder plunger pump.
  • Figure 3 is a schematic diagram of the structure of the power end housing.
  • a single-machine single-pump electric drive fracturing semi-trailer including a semi-trailer body 1, a plunger pump 5, a radiator 6, a power supply unit and an electric motor 4.
  • the radiator 6 and the plunger pump 5 are integrated on the semi-trailer body 1, the motor 4 is one unit, the radiator 6 is one unit, and the plunger pump 5 is one unit.
  • the power supply unit provides electric power for the motor 4, and the motor 4 is connected with The plunger pump 5 is connected, and the radiator 6 provides cooling for the lubricating oil of the plunger pump 5.
  • the power supply unit includes a transformer unit 3 and a inverter unit 2.
  • the inverter unit 2 is connected to the transformer unit 3, and the transformer unit 3 is provided at one end of the semi-trailer body 1 close to the motor 4, and the inverter unit 2 is provided with On the gooseneck of the semi-trailer body 1.
  • the number of axles of the semi-trailer body 1 is four.
  • An electrical control cabinet can also be provided on the semi-trailer to realize local control of the semi-trailer.
  • the traditional power supply semi-trailer and fracturing semi-trailer are optimized and integrated to realize that a semi-trailer has the functions of power supply and fracturing at the same time.
  • the wiring is relatively cumbersome when the power supply semi-trailer supports multiple fracturing semi-trailers. It takes a lot of time to arrange the semi-trailer and multiple fracturing semi-trailers, etc.).
  • the power supply semi-trailer and the fracturing semi-trailer are transported separately, moved separately, and then wired and installed separately.
  • This single-pump electric drive The fracturing semi-trailer only needs to be moved once, and only a set of high-voltage cables are connected to the high-voltage power supply to realize the working state.
  • electric drive fracturing has lower noise and no exhaust emission pollution; the driving source is electricity, which is cheaper than diesel.
  • the transformer unit 3 has a cabin structure, and a high-voltage switch and a transformer are arranged in the cabin, and the high-voltage switch is connected to the transformer.
  • the frequency conversion unit 2 has a cabin structure, and a frequency converter is arranged in the cabin of the frequency conversion unit 2, and the input end of the frequency converter is connected to the voltage transformation unit 3. Specifically, the input end of the frequency converter is connected to the transformer, and the The output terminal of the frequency converter is connected with the motor 4.
  • the plunger pump 5 is a five-cylinder plunger pump, the five-cylinder plunger pump includes a power end assembly 7, a hydraulic end assembly 9 and a reduction box assembly 8, one end of the power end assembly 7 and The hydraulic end assembly 9 is connected, and the other end of the power end assembly 7 is connected to the reduction box assembly 8.
  • the power end assembly 7 includes a crankcase, a crosshead box and a spacer, the crankcase , The crosshead box and the spacer are connected in sequence.
  • the stroke of the five-cylinder plunger pump is more than 10".
  • the long-stroke design can better realize the large displacement operation requirements and improve the operation efficiency.
  • the power of the five-cylinder plunger pump is above 5000 hp. More preferably, the power of the five-cylinder plunger pump is 7000 hp.
  • the cylinder spacing of the five-cylinder plunger pump is 13-14in, which provides a guarantee for the high-power output of the five-cylinder plunger pump.
  • the high-power five-cylinder plunger pump can effectively solve the narrow and required shale gas cracking wellsite area. The problem of more fracturing equipment can reduce the use of equipment and facilitate the layout of the well site.
  • the crankcase body and the crosshead box body are integrally welded to form a power end shell 11, which is connected to a spacer frame.
  • the power end shell 11 includes a vertical plate 16, a bearing seat 17, and a front end plate 20,
  • the vertical plates 16 are arranged in parallel to form a power end cavity, a bottom plate 18 is installed at the bottom of the power end cavity, an upper cover 21 is installed on the top of the power end cavity, and a front end of the power end cavity is installed
  • the front end plate 20 is equipped with a rear cover plate 15 at the rear end of the power end cavity, and a support plate 19 is provided between two adjacent vertical plates 16 arranged in parallel.
  • crankcase and crosshead box in the power end assembly 7 of the five-cylinder plunger pump adopt an integral welding structure, which makes the structure of the power end assembly 7 stronger, better support stability, and can reduce the vibration of the whole pump.
  • a crankshaft is set in the crankcase, a crosshead, a crosshead cover and a crosshead bearing bush are arranged in the crosshead case, a connecting rod, a connecting rod cover and a connecting rod bearing bush are arranged between the crankcase and the crosshead case, the crankshaft With five crankshaft and six journals, one end of the crankshaft is connected with the reduction box assembly 8, the other end of the crankshaft is connected with the connecting rod through the connecting rod cover and the connecting rod bearing bush, and the other end of the connecting rod is connected through the crosshead cover and the crosshead bearing bush.
  • the crankshaft is installed on the bearing seat 17 of the power end housing 11 through six cylindrical roller bearings, which can realize the rotation of the crankshaft.
  • Slide rails are fixedly installed on the support plate 19, two slide rails form a semicircular space, and the crosshead is installed in the semicircular space to realize linear movement.
  • the gearbox assembly 8 includes a planetary gearbox and a parallel-stage gearbox, and the transmission gears are all helical gears.
  • the planetary reduction gearbox includes a sun gear, four planet gears, a planet carrier and an inner ring gear, which form a planetary gear mechanism.
  • the sun gear is located in the center of the planetary gear mechanism;
  • the parallel-stage reduction gearbox includes a small gear and a large gear, a small gear and an input
  • the large gear is connected with the sun gear of the planetary reduction box, and the speed reduction and torque increase are realized through the reduction box.
  • the drive flange 10 is externally connected to the planetary gearbox, and the drive flange 10 is connected to an external power source to realize power input.
  • the parallel-stage gearbox is connected with the crankshaft to realize power output.
  • a crankshaft support body 12 is provided at the bottom of the crankcase body, and the crankshaft support body 12 is used to support the crankshaft case body.
  • a crosshead support 13 is provided at the bottom of the crosshead box, and the crosshead support 13 is used to support the crosshead box.
  • a hydraulic support 14 is provided at the bottom of the spacer, and the hydraulic support 14 is used to support the hydraulic end assembly 9.
  • the working principle of the plunger pump 5 the external power or speed drives the gearbox assembly 8 to rotate through the drive flange 10, and the power and torque are transmitted to the crankshaft through the two-stage speed change of the planetary gearbox and the parallel-stage gearbox.
  • the power end housing 11 rotates to drive the connecting rod, crosshead, and pull rod to move, transforming the rotation of the crankshaft into the reciprocating linear motion of the pull rod.
  • the pull rod drives the plunger through the clamp to reciprocate in the valve box, thereby realizing low pressure liquid
  • the suction and the discharge of high-pressure liquid realize the pumping of liquid.
  • the working principle of the single-unit single-pump electric drive fracturing semi-trailer the input end of the high-voltage switch is connected to the high-voltage power supply through a cable, the output end of the high-voltage switch is connected to the transformer, and the high-voltage switch is used to control the entire single-unit single-pump electric drive fracturing
  • the power supply of the semi-trailer is switched on and off, the high-voltage power is reduced by the transformer to power the frequency converter, the frequency converter drives the motor 4 to work, the motor 4 drives the plunger pump 5 to work, and the radiator 6 provides cooling for the lubricating oil of the plunger pump 5

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Public Health (AREA)
  • Health & Medical Sciences (AREA)
  • Transportation (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

La présente invention concerne une semi-remorque de fracturation à entraînement électrique à pompe unique et moteur unique comprenant un corps de semi-remorque (1), une pompe à piston (5), un radiateur (6), une unité d'alimentation électrique et un moteur électrique (4), l'unité d'alimentation électrique, le moteur électrique (4), le radiateur (6) et la pompe à piston (5) étant intégrés sur le corps de semi-remorque (1) ; un moteur électrique (4) ; un radiateur (6) ; une pompe à piston (5) ; l'unité d'alimentation électrique fournissant de l'énergie électrique au moteur électrique (4) ; le moteur électrique (4) étant raccordé à la pompe à piston (5) ; et le radiateur (6) étant utilisé pour refroidir l'huile lubrifiante de la pompe à piston (5). La semi-remorque présente à la fois des fonctions d'alimentation électrique et de fracturation sans utiliser de semi-remorque d'alimentation électrique et de semi-remorque de fracturation en tant qu'ensemble, de sorte que la semi-remorque est plus souple en utilisation réelle, et la disposition de site de puits d'un champ de pétrole et de gaz est considérablement optimisée ; en outre, la semi-remorque est pratique à transporter avec un câblage et une installation rapides, et utilise la fracturation à entraînement électrique qui, par rapport à la fracturation entraînée par diesel, présente un faible bruit, ne présente pas de pollution par émission de gaz résiduaire et présente de faibles coûts d'utilisation.
PCT/CN2019/114304 2019-06-13 2019-10-30 Semi-remorque de fracturation à entraînement électrique à pompe unique et moteur unique WO2021081798A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
PCT/CN2019/114304 WO2021081798A1 (fr) 2019-10-30 2019-10-30 Semi-remorque de fracturation à entraînement électrique à pompe unique et moteur unique
CA3159593A CA3159593A1 (fr) 2019-10-30 2019-10-30 Semi-remorque de fracturation a entrainement electrique a pompe unique et moteur unique
US17/733,922 US11746636B2 (en) 2019-10-30 2022-04-29 Fracturing apparatus and control method thereof, fracturing system
US17/884,358 US11680474B2 (en) 2019-06-13 2022-08-09 Fracturing apparatus and control method thereof, fracturing system
US18/311,042 US20230279762A1 (en) 2019-06-13 2023-05-02 Fracturing apparatus and control method thereof, fracturing system
US18/360,678 US20240035363A1 (en) 2019-10-30 2023-07-27 Fracturing apparatus and control method thereof, fracturing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/114304 WO2021081798A1 (fr) 2019-10-30 2019-10-30 Semi-remorque de fracturation à entraînement électrique à pompe unique et moteur unique

Related Child Applications (2)

Application Number Title Priority Date Filing Date
PCT/CN2020/135860 Continuation-In-Part WO2022120823A1 (fr) 2019-06-13 2020-12-11 Équipement de fracturation
US17/733,922 Continuation-In-Part US11746636B2 (en) 2019-06-13 2022-04-29 Fracturing apparatus and control method thereof, fracturing system

Publications (1)

Publication Number Publication Date
WO2021081798A1 true WO2021081798A1 (fr) 2021-05-06

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CA (1) CA3159593A1 (fr)
WO (1) WO2021081798A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114576129A (zh) * 2022-02-17 2022-06-03 烟台杰瑞石油装备技术有限公司 压裂设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102602322A (zh) * 2012-03-19 2012-07-25 西安邦普工业自动化有限公司 电驱动压裂泵车
CN103089226A (zh) * 2013-01-24 2013-05-08 成都宏天电传工程有限公司 一种油田开采压裂机组
US20160273328A1 (en) * 2012-11-16 2016-09-22 Us Well Services Llc Cable Management of Electric Powered Hydraulic Fracturing Pump Unit
US20170051732A1 (en) * 2015-08-18 2017-02-23 Baker Hughes Incorporated Pump system and method of starting pump
CN109882144A (zh) * 2019-04-19 2019-06-14 烟台杰瑞石油装备技术有限公司 一种双机双泵电驱压裂半挂车

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102602322A (zh) * 2012-03-19 2012-07-25 西安邦普工业自动化有限公司 电驱动压裂泵车
US20160273328A1 (en) * 2012-11-16 2016-09-22 Us Well Services Llc Cable Management of Electric Powered Hydraulic Fracturing Pump Unit
CN103089226A (zh) * 2013-01-24 2013-05-08 成都宏天电传工程有限公司 一种油田开采压裂机组
US20170051732A1 (en) * 2015-08-18 2017-02-23 Baker Hughes Incorporated Pump system and method of starting pump
CN109882144A (zh) * 2019-04-19 2019-06-14 烟台杰瑞石油装备技术有限公司 一种双机双泵电驱压裂半挂车

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114576129A (zh) * 2022-02-17 2022-06-03 烟台杰瑞石油装备技术有限公司 压裂设备

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