CN110821464A - Fractured well site layout system - Google Patents

Fractured well site layout system Download PDF

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Publication number
CN110821464A
CN110821464A CN201911220962.7A CN201911220962A CN110821464A CN 110821464 A CN110821464 A CN 110821464A CN 201911220962 A CN201911220962 A CN 201911220962A CN 110821464 A CN110821464 A CN 110821464A
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CN
China
Prior art keywords
electrically
fracturing
equipment
driven
drives
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Pending
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CN201911220962.7A
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Chinese (zh)
Inventor
崔树桢
常胜
张鹏
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Yantai Jereh Petroleum Equipment and Technologies Co Ltd
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Yantai Jereh Petroleum Equipment and Technologies Co Ltd
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Priority to CN201911220962.7A priority Critical patent/CN110821464A/en
Publication of CN110821464A publication Critical patent/CN110821464A/en
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    • 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
    • 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
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Power Engineering (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

The invention discloses a fractured well site layout system which comprises a gas source, a processing device, a power supply system, a power distribution system, an electrically-driven fracturing device, an electrically-driven sand mixing device, a sand supply device, a liquid supply device, an instrument device and a high-low pressure manifold, wherein the gas source is processed by the processing device and then provides fuel required by power generation for the power supply system, the power supply system drives the electrically-driven fracturing device and the electrically-driven sand mixing device respectively through the power distribution system, the sand supply device provides fracturing sand required by mixing for the electrically-driven sand mixing device, the liquid supply device provides liquid required for the electrically-driven sand mixing device, the output end of the electrically-driven sand mixing device is connected with the electrically-driven fracturing device through the high-low pressure manifold, the electrically-driven fracturing device is communicated with a well head through the high-low pressure manifold, and the instrument device is used for remotely controlling the electrically-driven fracturing device and the electrically-driven. Has the advantages that: area is littleer, and single unit electricity drives fracturing unit output power is bigger, and whole well site overall arrangement wiring is simpler, and the wiring time-consuming is shorter, is suitable for more in a flexible way.

Description

Fractured well site layout system
Technical Field
The invention relates to the technical field of oil and gas fracturing, in particular to a fracturing well site layout system.
Background
In a fracturing operation site of a global oil and gas field, a power transmission system adopted by the traditional fracturing equipment is configured in a manner that a diesel engine is connected with a gearbox and drives a fracturing plunger pump to work through a transmission shaft, namely, a power source is the diesel engine, a transmission device is the gearbox and the transmission shaft, and an execution element is the fracturing plunger pump. The conventional diesel engine driving has some disadvantages, such as low power, large volume, complex well site arrangement, high noise, exhaust emission, high fuel cost and the like. Therefore, the conventional diesel oil drive is replaced by the use of the continuous electrically-driven fracturing equipment, but the configuration of the power supply and distribution system of the conventional electrically-driven fracturing well site is complex, the number of wires is large, and the wiring time is long; the electrically-driven fracturing equipment is small in output power, and in order to meet the requirement of wellhead fracturing power, a large amount of electrically-driven fracturing equipment is often required to be arranged at a well site, and the large amount of electrically-driven fracturing equipment also aggravates the complication of power supply wiring to a certain extent.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a fracturing well site layout system, which adopts a gas turbine engine and a generator to directly output high voltage, and supplies power to electrically-driven fracturing equipment through a high-voltage switch, a frequency converter and a transformer of power distribution equipment, wherein each electrically-driven fracturing equipment is provided with two groups of wiring terminals, so that one group of high-voltage cable input can be realized, two electrically-driven fracturing equipment can be directly supplied with power, the circuit wiring is simplified, the installation is rapid, and the frequency converter and the transformer are arranged on the electrically-driven fracturing equipment, so that the circuit wiring is simplified, and the installation time is saved. The low-voltage switch, the auxiliary transformer and the rectifying unit of the power distribution equipment supply power for the electrically-driven sand mixing equipment and the instrument equipment. The gas source of the gas turbine engine can adopt one or more of CNG, LNG, well head gas and pipeline gas, the gas source is flexible to select, the well site layout system is guaranteed to adapt to wider conditions, the traditional diesel engine is replaced, the exhaust emission is reduced, and the fuel cost is reduced. The processing of well head gas adopts the membrane separation device who adopts the series connection, realizes dewatering and heavy hydrocarbon removal respectively through dehydration membrane separator and heavy hydrocarbon removal membrane separator, and whole clarification plant simple structure assembles the convenience, and area is little, and no extra material and reagent consumption, the running cost is low, for the area that reduces of whole well site layout system, reduces the operation cost and provides the guarantee. The electrically-driven fracturing equipment adopts a single motor and a single plunger pump, so that the use is more flexible; the plunger pump adopts 7000 hp's five jar plunger pumps, makes single electrically drive fracturing equipment's output higher, under the condition that equally satisfies well site fracturing power requirement, this electrically drive fracturing equipment and compare the actual demand quantity of the electrically drive fracturing equipment of other miniwatt less, has reduced the area of electrically driving fracturing equipment greatly.
The aim of the invention is achieved by the following technical measures: the utility model provides a well site overall arrangement system of fracturing, includes the air supply, and the treatment facility, power supply system, distribution system, the fracturing unit that drives electrically, the muddy sand equipment that drives electrically supplies sand equipment, supplies liquid equipment, instrument equipment, high-low pressure manifold, the air supply is handled the back through the treatment facility and is provided the required fuel of electricity generation for power supply system, power supply system drives respectively through distribution system and drives electrically fracturing unit and electrically drive muddy sand equipment, supplies sand equipment to drive muddy sand equipment for electrically and provide thoughtlessly join in marriage required fracturing sand, supplies liquid equipment to drive muddy sand equipment for electrically and provide required liquid, and the output that drives muddy sand equipment electrically is connected with electrically driving fracturing unit through high-low pressure manifold, and electrically drives fracturing unit and well head intercommunication through high-low pressure manifold, and instrument equipment is used for remote control fracturing unit and electrically drives muddy sand equipment.
Further, the gas source is CNG and/or LNG and/or well head gas and/or pipeline gas.
Further, the treatment facility of well head gas is clarification plant, clarification plant includes filter, compressor, air cooler, vapour and liquid separator, dehydration membrane separator and takes off heavy hydrocarbon membrane separator, the one end and the well head gas line switch-on of filter, the gas outlet of filter with the inlet end of compressor is connected, the end of giving vent to anger of compressor with the one end of air cooler is connected, the other end of air cooler with the mouth that inserts of vapour and liquid separator is connected, vapour and liquid separator's gas outlet with the entry linkage of dehydration membrane separator, the gas outlet of dehydration membrane separator with take off heavy hydrocarbon membrane separator and be connected.
Further, distribution system includes high tension switchgear, low tension switchgear, auxiliary transformer, the rectifier unit, high tension switchgear, low tension switchgear, auxiliary transformer and rectifier unit are integrated on a distribution semitrailer, and power supply system's gas turbine engine and high voltage generator directly send high-voltage, divide the multichannel through distribution system's high tension switchgear and carry for the fracturing equipment that drives of electricity, through distribution system's low tension switchgear, auxiliary transformer, the rectifier unit is for driving the power supply of muddy sand equipment of electricity and instrument equipment.
Further, the electrically-driven fracturing equipment comprises a plunger pump, a radiator and a motor, wherein the number of the motors is 1, the number of the radiators is 1, the number of the plunger pumps is 1, the motor is connected with the plunger pump, and the radiator is used for cooling lubricating oil of the plunger pump.
Further, the plunger pump is a 7000hp five-cylinder plunger pump.
Further, the electrically driven fracturing equipment is in a semi-trailer with more than 4 shafts.
Further, the power distribution system comprises a transformer and a frequency converter, the transformer and the frequency converter are integrated on the electrically-driven fracturing equipment, and the power supply system supplies power to the electrically-driven fracturing equipment through the frequency converter and the transformer.
Furthermore, each electrically-driven fracturing device is provided with two groups of wiring terminals, wherein one group of wiring terminals is used for supplying power to the adjacent electrically-driven fracturing devices.
Compared with the prior art, the invention has the beneficial effects that: the utility model provides a well site overall arrangement system of fracture, this well site overall arrangement system adopts gas turbine engine and the direct output high-voltage electricity of generator, high-voltage switch through distribution equipment, the converter, the transformer supplies power for the fracturing equipment of electricity drive, every electricity drives and establishes two sets of binding post on the fracturing equipment, can realize a set of high tension cable input, two electricity of direct power supply drive fracturing equipment, the circuit wiring has been simplified, the installation is swift, and with the converter, the transformer has been established on the fracturing equipment of electricity drive, the circuit wiring has been simplified more, installation time has been practiced thrift more. The low-voltage switch, the auxiliary transformer and the rectifying unit of the power distribution equipment supply power for the electrically-driven sand mixing equipment and the instrument equipment. The gas source of the gas turbine engine can adopt one or more of CNG, LNG, well head gas and pipeline gas, the gas source is flexible to select, the well site layout system is guaranteed to adapt to wider conditions, the traditional diesel engine is replaced, the exhaust emission is reduced, and the fuel cost is reduced. The processing of well head gas adopts the membrane separation device who adopts the series connection, realizes dewatering and heavy hydrocarbon removal respectively through dehydration membrane separator and heavy hydrocarbon removal membrane separator, and whole clarification plant simple structure assembles the convenience, and area is little, and no extra material and reagent consumption, the running cost is low, for the area that reduces of whole well site layout system, reduces the operation cost and provides the guarantee. The electrically-driven fracturing equipment adopts a single motor and a single plunger pump, so that the use is more flexible; the plunger pump adopts 7000 hp's five jar plunger pumps, makes single electrically drive fracturing equipment's output higher, under the condition that equally satisfies well site fracturing power requirement, this electrically drive fracturing equipment and compare the actual demand quantity of the electrically drive fracturing equipment of other miniwatt less, has reduced the area of electrically driving fracturing equipment greatly.
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 a fractured wellsite placement system.
Fig. 2 is a schematic structural view of the purification apparatus.
Fig. 3 is a schematic diagram of the structure of an electrically driven fracturing apparatus.
The system comprises an air source 1, a processing device 2, a power supply system 3, a power distribution system 4, an electrically-driven fracturing device 5, an electrically-driven sand mixing device 6, a sand supply device 7, a liquid supply device 8, an instrument device 9, a high-low pressure manifold 10, a filter 11, a compressor 12, an air cooler 13, a gas-liquid separator 14, a dehydration membrane separator 15, a heavy hydrocarbon removal membrane separator 16, a plunger pump 17, a radiator 18, a motor 19, a transformer 20, a frequency conversion cabin 21, a mixing device 22 and a chemical adding device 23.
Detailed Description
As shown in fig. 1 to 3, a fractured well site layout system comprises an air source 1, a processing device 2, a power supply system 3, a power distribution system 4, an electrically-driven fracturing device 5, an electrically-driven sand mixing device 6, a sand supply device 7, a liquid supply device 8, an instrument device 9, a high-low pressure manifold 10, the gas source 1 is processed by the processing device 2 and then provides fuel required for power generation for the power supply system 3, power supply system 3 drives respectively through distribution system 4 and drives fracturing unit 5 and the muddy sand equipment 6 of electricity that drives, supply sand equipment 7 to drive muddy sand equipment 6 for electricity and provide thoughtlessly joining in marriage required fracturing sand, supply liquid equipment 8 to drive muddy sand equipment 6 for electricity and provide required liquid, the output that drives muddy sand equipment 6 of electricity is connected with the fracturing unit 5 of electricity through high-low pressure manifold 10, it communicates with the well head through high-low pressure manifold 10 to drive fracturing unit 5 to drive electrically, instrument equipment 9 is used for remote control to drive fracturing unit 5 electrically and drive muddy sand equipment 6 electrically.
The gas source 1 is CNG and/or LNG and/or well head gas and/or pipeline gas. The air source 1 is flexible to select, guarantees wider adaptation conditions of a well site layout system, replaces a traditional diesel engine, reduces exhaust emission and reduces fuel cost.
Processing equipment 2 of CNG is the pressure regulating equipment, and CNG provides the required fuel of electricity generation for power supply system 3 after handling through the pressure regulating, the processing equipment 2 of LNG is gasification equipment, and LNG provides the required fuel of electricity generation for power supply system 3 after handling through the gasification, the processing equipment 2 of well head gas is clarification plant, clarification plant includes filter 11, compressor 12, air cooler 13, vapour and liquid separator 14, dehydration membrane separator 15 and heavy hydrocarbon membrane separator 16 that takes off, the one end and the well head gas line switch-on of filter 11, the gas outlet of filter 11 with the inlet end of compressor 12 is connected, the end of giving vent to anger of compressor 12 with the one end of air cooler 13 is connected, the other end of air cooler 13 with the incoming port of vapour and liquid separator 14 is connected, the gas outlet of vapour and liquid separator 14 with the entry linkage of dehydration membrane separator 15, the air outlet of the dehydration membrane separator 15 is connected with the heavy hydrocarbon removal membrane separator 16. The processing of well head gas adopts the membrane separation device who adopts the series connection, realizes dehydration and heavy hydrocarbon removal respectively through dehydration membrane separator 15 and heavy hydrocarbon removal membrane separator 16, and whole clarification plant simple structure assembles the convenience, and area is little, does not have extra material and reagent consumption, and the running cost is low, for the area that reduces of whole well site layout system, reduces the operation cost and provides the guarantee.
Distribution system 4 includes high-voltage switch, low-voltage switch, auxiliary transformer, the rectifier unit, high-voltage switch, low-voltage switch, auxiliary transformer and rectifier unit are integrated on a semitrailer, and power supply system 3's gas turbine engine and high voltage generator directly send high voltage, divide the multichannel transmission for electrically driving fracturing equipment 5 through distribution system 4's high-voltage switch, through distribution system 4's low-voltage switch, auxiliary transformer, the rectifier unit supplies power for electrically driving sand mixing equipment 6 and instrument equipment 9. The well site layout system further comprises a mixed device 22, a chemical adding device 23 and the like, wherein the power supply system 2 supplies power to the mixed device 22, the chemical adding device 23 and the like through a low-voltage switch, an auxiliary transformer and a rectifying unit of the power distribution system 4. The low-voltage switch, the auxiliary transformer and the rectifier unit form a low-voltage distribution system of the distribution system 4.
The electrically-driven fracturing equipment 5 comprises a plunger pump 17, a radiator 18 and a motor 19, wherein the number of the motor 19 is 1, the number of the radiator 18 is 1, the number of the plunger pump 17 is 1, the motor 19 is connected with the plunger pump 17, and the radiator 18 cools lubricating oil of the plunger pump 17. The electrically driven fracturing device 5 is in the form of a single motor 19 and a single plunger pump 17, so that the electrically driven fracturing device 5 is more flexible to use.
The plunger pump 17 is a 7000hp five-cylinder plunger pump. The output power of a single electrically-driven fracturing device 5 is higher, and under the condition that the well site fracturing power requirement is also met, the electrically-driven fracturing device 5 has less actual demand quantity compared with other electrically-driven fracturing devices 5 with small power, so that the occupied area of the electrically-driven fracturing device 5 is greatly reduced.
The electrically-driven fracturing equipment 5 is mounted on a semitrailer with more than 4 shafts. The load capacity of the electrically driven fracturing equipment 5 is ensured.
The power distribution system 4 comprises a transformer 20 and a frequency converter, the transformer 20 and the frequency converter are integrated on the electrically-driven fracturing equipment 5, and the power supply system 3 supplies power to the electrically-driven fracturing equipment 5 through the frequency converter and the transformer 20. A variable frequency cabin 21 is arranged on a gooseneck of a semitrailer of the electrically-driven fracturing equipment 5, and a frequency converter is arranged in the variable frequency cabin 21. The frequency converter and the transformer 20 are arranged on the electrically-driven fracturing equipment 5, so that the circuit wiring is simplified, and the installation time is saved.
And each electrically-driven fracturing device 5 is provided with two groups of wiring terminals, wherein one group of wiring terminals is used for supplying power to the adjacent electrically-driven fracturing devices 5. Adopt high tension cable to connect between electrically driving fracturing unit 5 and the power supply system 3, can realize a set of high tension cable input, two electrically driving fracturing unit 5 of direct power supply have simplified the circuit wiring, and the installation is swift.
The working principle is as follows: the liquid supply device 8 supplies water to the mixing device 22, the mixing device 22 mixes the water and various additives to form fracturing base fluid, the fracturing base fluid is supplied to the electrically-driven sand mixing device 6, and the sand supply device 7 supplies fracturing propping agents to the electrically-driven sand mixing device 6. The fracturing base fluid and the fracturing propping agent are mixed in the electrically-driven sand mixing equipment 6 and then are conveyed into the high-low pressure manifold 10, then are distributed to each electrically-driven fracturing equipment through the high-low pressure manifold 10, and the well-mixed fracturing fluid high-pressure pump is injected into a well head through the electrically-driven fracturing equipment (an injection route is that the electrically-driven fracturing equipment 5-a connecting pipeline-the high-low pressure manifold 10-the well head), and then the stratum of an oil well or a gas well is fractured. The chemical adding device 23 is used to provide various chemical additives to the compounding device 22 or to electrically drive the sand mulling device 6.
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 (9)

1. A fractured wellsite layout system, comprising: including the air supply, wellhead gas clarification plant, power supply system, distribution system, the fracturing unit that drives electricity, the muddy sand equipment that drives electricity, supplies sand equipment, supplies liquid equipment, instrument equipment, high low pressure manifold, the air supply passes through wellhead gas clarification plant and purifies the back and provides the required fuel of electricity generation for power supply system, power supply system drives respectively through distribution system and drives fracturing unit and the muddy sand equipment that drives electricity, supplies sand equipment to drive for the muddy sand equipment that drives electricity and provides thoughtlessly required fracturing sand, supplies liquid equipment to drive for the muddy sand equipment that drives electricity and provide required liquid, and the output that drives muddy sand equipment that drives electricity passes through high low pressure manifold and drives the fracturing unit to be connected with electricity, and the fracturing unit that drives electricity passes through high low pressure manifold and well head intercommunication, and instrument equipment is used for remote control electricity to drive fracturing unit and drives the fracturing unit with electricity.
2. The electrically driven fracturing wellsite placement system of claim 1, wherein: the gas source is CNG and/or LNG and/or wellhead gas and/or pipeline gas.
3. The electrically driven fracturing wellsite placement system of claim 1, wherein: well head gas cleaning equipment includes filter, compressor, air cooler, vapour and liquid separator, dehydration membrane separator and takes off heavy hydrocarbon membrane separator, the one end and the well head gas line switch-on of filter, the gas outlet of filter with the inlet end of compressor is connected, the end of giving vent to anger of compressor with the one end of air cooler is connected, the other end of air cooler with the mouth that inserts of vapour and liquid separator is connected, vapour and liquid separator's gas outlet with the entry linkage of dehydration membrane separator, the gas outlet of dehydration membrane separator with take off heavy hydrocarbon membrane separator and connect.
4. The electrically driven fracturing wellsite placement system of claim 1, wherein: the distribution system includes high tension switchgear, low tension switchgear, auxiliary transformer, the rectifier unit, high tension switchgear, low tension switchgear, auxiliary transformer and rectifier unit are integrated on a distribution semitrailer, and power supply system's gas turbine engine and high voltage generator directly send high voltage, divide the multichannel to carry for the fracturing unit that drives of electricity through distribution system's high tension switchgear, and low tension switchgear, auxiliary transformer, rectifier unit drive sand mixing equipment and instrument equipment power supply for electricity through distribution system's low tension switchgear, auxiliary transformer.
5. The electrically driven fracturing wellsite placement system of claim 1, wherein: the electrically-driven fracturing equipment comprises a plunger pump, a radiator and a motor, wherein the motor is 1, the radiator is 1, the plunger pump is 1, the motor is connected with the plunger pump, and the radiator provides cooling for lubricating oil of the plunger pump.
6. The electrically driven fracturing wellsite placement system of claim 5, wherein: the plunger pump is a 7000hp five-cylinder plunger pump.
7. The electrically driven fracturing wellsite placement system of claim 5, wherein: the electrically-driven fracturing equipment is semi-trailer-mounted with more than 4 shafts.
8. The electrically driven fracturing wellsite placement system of claim 1, wherein: the power distribution system comprises a transformer and a frequency converter, the transformer and the frequency converter are integrated on the electrically-driven fracturing equipment, and the power supply system supplies power to the electrically-driven fracturing equipment through the frequency converter and the transformer.
9. The electrically driven fracturing wellsite placement system of claim 1, wherein: every it is equipped with two sets of binding post to electrically drive the fracturing unit, and one of them group binding post is used for adjacent electrically to drive the fracturing unit power supply.
CN201911220962.7A 2019-12-03 2019-12-03 Fractured well site layout system Pending CN110821464A (en)

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