CN211422621U - Multiphase mixed-transportation hydraulic device for gas well pressurization - Google Patents

Multiphase mixed-transportation hydraulic device for gas well pressurization Download PDF

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Publication number
CN211422621U
CN211422621U CN201921869022.6U CN201921869022U CN211422621U CN 211422621 U CN211422621 U CN 211422621U CN 201921869022 U CN201921869022 U CN 201921869022U CN 211422621 U CN211422621 U CN 211422621U
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hydraulic
pipeline
shell
storage tank
hole
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孙双平
吴红彬
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Higgs Technology Tianjin Co ltd
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Higgs Technology Tianjin Co ltd
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Abstract

The utility model provides a multiphase mixed transportation hydraulic device for gas well pressurization, which comprises a plurality of hydraulic devices, wherein the hydraulic devices are arranged on a chassis, and the chassis is arranged on the ground through a fixed column; the bottom of the hydraulic device is provided with a first through hole and a second through hole; and the chassis is provided with an air inlet hole and an air outlet hole which are respectively communicated with the first through hole and the second through hole in a corresponding mode, the bottom side of the chassis is fixedly provided with an air inlet pipeline and a storage tank body, the air inlet hole is communicated with the air inlet pipeline, the air inlet pipeline is provided with an air inlet one-way valve, the air outlet hole is communicated with the storage tank body, the bottom wall of the storage tank body is communicated with a sewage discharge pipeline, the upper part of the side wall of the storage tank body is communicated with an air exhaust pipeline, the air exhaust pipeline is provided with an air exhaust one. The utility model discloses a device can be discharged behind inspiratory silt and water and the natural gas separation respectively again, and this device overall structure is simple, easy access and maintenance.

Description

Multiphase mixed-transportation hydraulic device for gas well pressurization
Technical Field
The utility model belongs to the connection revolution mechanic field of pump for oil and gas trade etc. especially relates to a heterogeneous defeated hydraulic means that thoughtlessly goes for gas well pressure boost.
Background
In natural gas production, a new well can input gas into a gas collecting pipe network by means of the pressure of the new well, but the pressure of a gas well is reduced along with the production. Some low-pressure wells are developed for years and are already in a low-pressure and low-yield stage, the yield of a gas well is greatly reduced, and the stable yield form of the gas reservoir is severe. The low-pressure gas well which does not enter the booster network is obviously influenced by the pressure fluctuation of the network. In order to ensure the production of gas wells and improve the recovery ratio of the gas wells, the whole low-pressure gas wells need to be subjected to pressurized exploitation, so that related pressurized devices are needed; most of the conventional common supercharging devices adopt a horizontal cylinder compression structure, and the horizontal cylinder compression structure cannot effectively discharge silt and water and only can compress pure natural gas.
SUMMERY OF THE UTILITY MODEL
The to-be-solved problem of the utility model is to provide a heterogeneous hydraulic means that thoughtlessly fails for gas well pressure boost, this device can be discharged respectively with inspiratory silt and water and natural gas after-separating again, and this device overall structure is simple, convenient to overhaul and maintenance.
In order to solve the technical problem, the utility model discloses a technical scheme is: the hydraulic device is arranged on a chassis, and the chassis is arranged on the ground through a fixing column; the bottom of the hydraulic device is provided with a first through hole and a second through hole; the chassis is provided with an air inlet hole and an air outlet hole which are correspondingly communicated with the first through hole and the second through hole respectively, the bottom side of the chassis is fixedly provided with an air inlet pipeline and a storage tank body, the air inlet hole is communicated with the air inlet pipeline, the air inlet pipeline is provided with an air inlet one-way valve, the air outlet hole is communicated with the storage tank body, the bottom wall of the storage tank body is communicated with a sewage discharge pipeline, the upper part of the side wall of the storage tank body is communicated with an air exhaust pipeline, the air exhaust pipeline is provided with an air exhaust one-way valve, and the sewage discharge pipeline is provided with a sewage discharge one-.
In the technical scheme, a plurality of hydraulic devices are arranged on a chassis in parallel, and natural gas can be efficiently sucked out due to large suction force generated by the operation of the hydraulic devices; the mixture of natural gas, silt and water in the gas well is sucked into the hydraulic device through the gas inlet pipeline and then is discharged into the storage tank body through the exhaust hole and the through hole II, the natural gas is separated from the silt and the water in the downward discharging process, wherein the natural gas is discharged and collected through the exhaust pipeline, and the mixture of the silt and the water is discharged through the sewage discharge pipeline; and then the silt and water can be effectively discharged.
Further, the hydraulic device comprises a housing, a piston sleeve is connected inside the housing in a sliding mode, and a sealing assembly is arranged between the piston sleeve and the housing; the top and the bottom of shell are fixedly connected with upper flange dish and lower flange dish respectively, the fixed pneumatic cylinder that is provided with on the bottom surface of upper flange dish, the piston rod of pneumatic cylinder runs through piston cover fixedly connected with connecting plate, the connecting plate with fixed and sealing connection of piston cover.
In the technical scheme, the piston sleeve divides the space inside the shell into two parts, namely an upper cavity and a lower cavity, when the hydraulic cylinder drives the piston sleeve to move downwards, the mixture of silt, water and natural gas sucked up in the lower cavity enters the storage tank under the action of downward pressure, the gravity of the silt and the water is greater than that of the natural gas, so that the mixture of the silt and the water sinks at the bottom of the storage tank, the natural gas is stored at the upper part, the piston sleeve moves downwards to reduce the volume in the whole lower cavity, so that the pressure of the piston sleeve is increased, the mixture of the silt and the water is discharged to a sewage discharge pipeline through the sewage discharge check valve, and the natural gas at the upper part is discharged to an exhaust pipeline through the exhaust check valve to be discharged and collected; when the live competition sleeve moves upwards, the volume of the lower cavity is increased, the internal pressure is reduced, suction is generated in the gas well, and the mixture of natural gas and silt water in the gas well is sucked into the lower cavity through the gas inlet pipeline.
Furthermore, the shell consists of an upper shell, a middle shell and a bottom shell, and sealing gaskets are arranged between the upper shell and the middle shell and between the middle shell and the bottom shell; and the upper shell and the middle shell, and the middle shell and the bottom shell are fixedly installed through snap rings.
In this technical scheme, the shell is fixed by the multipart joint, is convenient for split and installation, and then easy access and maintenance.
Furthermore, the first through hole and the second through hole are formed in the lower flange.
Furthermore, an air outlet pipeline and a movable sleeve are fixedly arranged on the upper flange plate, an air outlet one-way valve is arranged in the air outlet pipeline, an oil pipe on the hydraulic cylinder penetrates through the movable sleeve and is in sealing connection with the movable sleeve, and a reciprocating valve is arranged on the oil pipe.
In this technical scheme, set up the pipeline of giving vent to anger and be used for collecting the natural gas that escapes to the cavity above the piston bush in the compression use.
Furthermore, hydraulic means is provided with 4 to 8, exhaust duct and pipeline of giving vent to anger all collect the net with the natural gas and communicate, sewage pipes is linked together with external mud and effluent treatment plant.
In this technical scheme, exhaust duct is used for carrying the natural gas and collects in the natural gas collecting net, sewage pipes is used for directly discharging mud and effluent treatment plant to the mixture such as silt and water and handles.
Further, still including oil tank, hydraulic pump and explosion-proof machine, explosion-proof machine connects the hydraulic pump, the hydraulic pump is connected with the oil tank just hydraulic pump connection the oil pipe of pneumatic cylinder.
Further, the height of the hydraulic device is 2-2.5 m, and the working pressure of the hydraulic device is 2 MPa.
Furthermore, one side wall of the storage tank body is obliquely arranged from top to bottom, the area of the bottom surface of the storage tank body is larger than that of the upper surface of the storage tank body, the exhaust pipeline is arranged on the oblique wall, a blocking plate is fixedly arranged on the oblique wall and is positioned below the exhaust pipeline, and the blocking plate is obliquely arranged towards the inside of the storage tank body.
In this technical scheme, the slope sets up the lateral wall and sets up the group baffle of slope can prevent that silt and water from entering into exhaust duct in, and what guarantee to export in the exhaust duct is pure natural gas.
The utility model has the advantages and positive effects that:
1. in the utility model, the hydraulic device generates suction force to suck out the mixture of natural gas, silt and water in the gas well; meanwhile, because of the one-way valve, the mixture of gas, liquid, sludge and the like enters the supercharging device through the gas inlet pipeline and is discharged into the storage tank body through the second through hole and the exhaust hole, natural gas is separated from silt and water due to different gravity in the discharging process, the natural gas is discharged and collected through the exhaust pipeline, and the mixture of the silt and the water is discharged and treated through the sewage discharge pipeline; therefore, the device can effectively separate the natural gas from the silt and the water and collect the natural gas.
2. The shell of the hydraulic device is fixed by the upper shell, the middle shell and the bottom shell in a clamping mode through clamping rings, so that the hydraulic device is convenient to mount and dismount and further convenient to maintain.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a multiphase mixed-delivery hydraulic device for gas well pressurization according to the present invention;
FIG. 2 is an enlarged view of the structure B of FIG. 1;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 4 is a schematic structural diagram of a hydraulic device in the multiphase mixed transportation hydraulic device for gas well pressurization according to the present invention;
FIG. 5 is a flow diagram of the natural gas, silt and water corresponding to each set of hydraulic devices during operation;
in the figure: 1-chassis, 101-air inlet hole, 102-air outlet hole, 103-air inlet pipeline, 104-storage tank body, 105-sewage discharge pipeline, 106-air discharge pipeline, 107-air discharge one-way valve, 108-sewage discharge one-way valve, 109-baffle plate, 110-air inlet one-way valve, 2-fixed column, 3-hydraulic device, 301-shell, 3011-upper shell, 3012-middle shell, 3013-lower shell, 3014-snap ring, 302-piston sleeve, 303-sealing component, 304-upper flange plate, 305-lower flange plate, 306-hydraulic cylinder, 307-connecting plate, 308-air outlet pipeline, 309-through hole I, 310-through hole II, 311-movable sleeve and 312-air outlet one-way valve.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1-5, the multiphase mixed transportation hydraulic device for pressurizing the gas well comprises a hydraulic device 3, wherein a plurality of hydraulic devices 3 are arranged, the hydraulic devices 3 are arranged on a chassis 1, and the chassis 1 is arranged on the ground through a fixed column 2; the bottom of the hydraulic device 3 is provided with a first through hole 309 and a second through hole 310; an air inlet 101 and an air outlet 102 which are respectively communicated with the first through hole 309 and the second through hole 310 are formed in the chassis 1, an air inlet pipeline 103 and a storage tank body 104 are fixedly arranged on the bottom side of the chassis 1, the air inlet 101 is communicated with the air inlet pipeline 103, an air inlet one-way valve 110 is arranged on the air inlet pipeline 103, the air outlet 102 is communicated with the storage tank body 104, a sewage discharge pipeline 105 is communicated with the bottom wall of the storage tank body 104, an air outlet pipeline 106 is communicated with the upper portion of the side wall of the storage tank body 104, an air outlet one-way valve 107 is arranged on the air outlet pipeline 106, and a sewage discharge one-way valve 108 is arranged on the sewage discharge pipeline 105. When the hydraulic device operates to suck air into the hydraulic device, the blowdown one-way valve 108 and the exhaust one-way valve 107 of the hydraulic device are closed, the air inlet one-way valve 110 is opened, and the mixture of natural gas, silt and water in the air well is sucked into the hydraulic device 3 through the air inlet pipeline 103. When the interior of the hydraulic device is exhausted, a blowdown one-way valve 108 and an exhaust one-way valve 107 are opened, an air inlet one-way valve 110 is closed, the mixture of silt, water and natural gas in the hydraulic device is discharged into the storage tank body 104 through the exhaust hole and the through hole II, the natural gas is separated from the silt and the water in the lower discharging process, wherein the natural gas is discharged and collected through an exhaust pipeline 106, and the mixture of the silt and the water is discharged through a blowdown pipeline 105; and then can be with the effectual discharge of silt and water, discharge the collection with the natural gas separation.
In this embodiment, further, the hydraulic device 3 includes a housing 301, a piston sleeve 302 is slidably connected inside the housing 301, and a sealing assembly 303 is disposed between the piston sleeve 302 and the housing 301; the top end and the bottom end of the shell 301 are respectively and fixedly connected with an upper flange plate 304 and a lower flange plate 305, a hydraulic cylinder 306 is fixedly arranged on the bottom surface of the upper flange plate 304, a piston rod of the hydraulic cylinder 306 penetrates through the piston sleeve 302 and is fixedly connected with a connecting plate 307, and the connecting plate 307 is fixedly and hermetically connected with the piston sleeve 302. When the piston rod of the hydraulic cylinder 306 moves up and down, the connecting plate 307 and the piston sleeve 302 are driven to move up and down, wherein the piston sleeve 302 divides the internal space of the shell 301 into two parts, namely an upper cavity and a lower cavity, when the hydraulic cylinder 306 drives the piston sleeve 302 to move down, the mixture of silt, water and natural gas sucked up in the lower cavity enters the storage tank 104 under the action of downward pressure, the silt and water are heavier than the natural gas, so that the mixture of silt and water is settled at the bottom of the storage tank 104, the natural gas is stored at the upper part, the piston sleeve 302 moves down to reduce the volume of the whole lower cavity, so that the pressure of the mixture of silt and water is increased, the mixture of silt and water is discharged to the sewage discharge pipeline 105 through the sewage discharge check valve 108, and the natural gas at the upper part is discharged to the exhaust pipeline 106 through the exhaust check valve 107 for collection; when the live competition sleeve 302 moves upwards, the volume of the lower cavity is increased, the internal pressure is reduced, suction is generated in the gas well, and the mixture of natural gas, silt and water in the gas well is sucked into the lower cavity through the gas inlet pipeline 103.
In this embodiment, further, the housing 301 is composed of an upper housing 3011, a middle housing 3012 and a bottom housing 3013, and sealing gaskets are disposed between the upper housing 3011 and the middle housing 3012 and between the middle housing 3012 and the bottom housing 3013; and the upper casing 3011 and the middle casing 3012, and the middle casing 3012 and the bottom casing 3013 are all fixedly mounted through a snap ring 3014. The shell 301 is clamped and fixed by the upper shell 3011, the middle shell 3012 and the bottom shell 3013 through the snap ring 3014, so that the shell can be conveniently installed and disassembled, and further is convenient to overhaul and maintain.
In this embodiment, further, the first through hole 309 and the second through hole 310 are disposed on the lower flange 305.
In this embodiment, further, an air outlet pipe 308 and a movable sleeve 311 are fixedly arranged on the upper flange 304, an air outlet check valve 312 is arranged in the air outlet pipe 308, an oil pipe on the hydraulic cylinder 306 penetrates through the movable sleeve 311, the oil pipe is hermetically connected with the movable sleeve 311, and a reciprocating valve is arranged on the oil pipe. The gas outlet pipe 308 is provided for collecting natural gas that escapes into the cavity above the piston sleeve 302 during the compression use of the hydraulic device 3, and when the piston sleeve 302 moves upward, if there is natural gas in the upper cavity, the natural gas is discharged to the gas outlet pipe 308 through the gas outlet check valve 312 and then discharged for collection.
In this embodiment, there are 4 hydraulic devices 3, the exhaust pipeline 106 and the gas outlet pipeline 308 are both communicated with a natural gas collecting network, and the sewage discharge pipeline 105 is communicated with an external sludge and wastewater treatment device. The 4 hydraulic devices 4 simultaneously suck gas into the gas well, the gas sucking effect is good, the exhaust pipeline 106 and the gas outlet pipeline 308 are used for conveying natural gas into the natural gas collecting net for collection, and the sewage discharge pipeline 108 is used for directly discharging silt, water and the like which are mixed into sludge and a wastewater treatment device for treatment.
In this embodiment, further, still include oil tank, hydraulic pump and explosion-proof machine, explosion-proof machine connects the hydraulic pump, the hydraulic pump is connected with the oil tank and the hydraulic pump is connected the oil pipe of pneumatic cylinder 306. When the explosion-proof motor operates, the hydraulic pump is driven to convey hydraulic oil in the oil tank into the hydraulic cylinder 306 through an oil pipe or the hydraulic oil is sucked out from the hydraulic cylinder 306 to adjust the pressure in the hydraulic cylinder 306 so as to control the piston rod of the hydraulic cylinder 306 to extend and retract up and down.
In the embodiment, further, the height of the hydraulic device 3 is 2-2.5 meters, and the working pressure of the hydraulic device 3 is 2 MPa.
In this embodiment, a side wall of the storage tank 104 is inclined from top to bottom and the bottom area is larger than the top area, the exhaust duct 106 is disposed on the inclined wall, a blocking plate 109 is further fixed on the inclined wall, the blocking plate 109 is located below the exhaust duct 106, and the blocking plate 109 is inclined toward the inside of the storage tank 104. The storage tank 104 is used for separating and storing natural gas from silt and water, wherein the inclined side walls and the inclined group partition plates 109 can prevent silt and water from entering the exhaust pipeline 106, so that pure natural gas is output from the exhaust pipeline 106; when the mixture enters the storage tank 104 from top to bottom, the natural gas is separated from silt and water due to the heavy weight of silt and water, so that the natural gas is located above the natural gas, and when the natural gas moves downwards by the piston sleeve 302, the space of the lower cavity is reduced, namely, the compressed natural gas is discharged and collected by the exhaust pipeline 106, and silt and water are discharged and treated by the sewage pipeline at the bottom.
The utility model discloses when using: the natural gas, silt and water flow direction diagram is shown in figure 5:
1. fixing a plurality of hydraulic devices 4 with the chassis 1, wherein an air outlet pipeline 308 on the hydraulic device 3 is communicated with a pipeline of a natural gas transmission network; thirdly, connecting an oil pipe of the hydraulic cylinder 306 with a hydraulic pump, and finally connecting a plurality of vent pipes which penetrate through the same vent pipe in the air pipe of the air inlet pipeline 103 at the bottom of the chassis, wherein the vent pipe is hermetically connected in an air well;
2. starting the explosion-proof motor to operate, driving the hydraulic pump, conveying hydraulic oil in the oil tank into the hydraulic cylinder 306 to start working, at the moment, moving a piston rod of the hydraulic cylinder 405 downwards to drive the piston sleeve 302 to move downwards, at the moment, opening the blowdown check valve 108 and the exhaust check valve 107, closing the air inlet check valve 110, discharging a mixture of natural gas, silt and water in a lower cavity of the hydraulic device 3 into the storage tank body 104 through the second through hole 310 and the exhaust hole 102, wherein the natural gas is separated from the silt and water in the lower discharging process, the natural gas is located above, the silt and water are located at the bottom, then the natural gas is discharged and collected by the exhaust pipeline 106, and the mixture of the silt and water is discharged by the blowdown pipeline 105; so that the silt and water can be effectively discharged, and the natural gas is separated, discharged and collected;
3. then the explosion-proof motor runs reversely, the hydraulic pump is driven to pump the hydraulic oil in the hydraulic cylinder 405 back to the oil tank through the oil pipe, so that the piston rod drives the piston sleeve 402 to move upwards, the blowdown one-way valve 108 and the exhaust one-way valve 107 are closed at the moment, the air inlet one-way valve 110 is opened, and the mixture of natural gas, silt and water in the air well is sucked into the lower cavity of the hydraulic device 3 through the air inlet pipeline 103;
4. the above steps 2 and 3 are repeated to continuously discharge and collect or treat the mixture of natural gas, silt and water through the exhaust pipe 106 and the sewage pipe 105 respectively.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims (9)

1. A multiphase mixed transportation hydraulic device for gas well pressurization comprises a hydraulic device (3), and is characterized in that: the hydraulic devices (3) are arranged in a plurality of numbers, the hydraulic devices (3) are arranged on the chassis (1), and the chassis (1) is arranged on the ground through the fixing columns (2); the bottom of the hydraulic device (3) is provided with a first through hole (309) and a second through hole (310); and an air inlet (101) and an air outlet (102) which are respectively communicated with the first through hole (309) and the second through hole (310) are formed in the chassis (1), an air inlet pipeline (103) and a storage tank body (104) are fixedly arranged on the bottom side of the chassis (1), the air inlet (101) and the air inlet pipeline (103) are arranged in a penetrating mode, an air inlet one-way valve (110) is arranged on the air inlet pipeline (103), the air outlet hole (102) is communicated with the storage tank body (104), a sewage discharge pipeline (105) is communicated with the bottom wall of the storage tank body (104), an air exhaust pipeline (106) is communicated with the upper portion of the side wall of the storage tank body (104), an air exhaust one-way valve (107) is arranged on the air exhaust pipeline (106), and a sewage discharge one-way valve (108) is arranged on the sewage discharge pipeline.
2. The multiphase hydraulic means for gas well pressurization of claim 1, wherein: hydraulic means (3) include shell (301), the inside sliding connection of shell (301) has piston sleeve (302), piston sleeve (302) with be provided with seal assembly (303) between shell (301), the top and the bottom of shell (301) are fixedly connected with upper flange dish (304) and lower flange dish (305) respectively, the fixed pneumatic cylinder (306) that is provided with on the bottom surface of upper flange dish (304), the piston rod of pneumatic cylinder (306) runs through piston sleeve (302) fixedly connected with connecting plate (307), connecting plate (307) with fixed and sealing connection of piston sleeve (302).
3. The multiphase hydraulic means for gas well pressurization of claim 2, wherein: the shell (301) is composed of an upper shell (3011), a middle shell (3012) and a bottom shell (3013), and sealing gaskets are arranged between the upper shell (3011) and the middle shell (3012) and between the middle shell (3012) and the bottom shell (3013); and the upper shell (3011) and the middle shell (3012), and the middle shell (3012) and the bottom shell (3013) are all fixedly mounted through snap rings (3014).
4. The multiphase hydraulic means for gas well pressurization of claim 2, wherein: the first through hole (309) and the second through hole (310) are arranged on the lower flange plate (305).
5. The multiphase hydraulic means for gas well pressurization of claim 2, wherein: an air outlet pipeline (308) and a movable sleeve (311) are fixedly arranged on the upper flange plate (304), an air outlet one-way valve (312) is arranged in the air outlet pipeline (308), an oil pipe on the hydraulic cylinder (306) penetrates through the movable sleeve (311) and is in sealing connection with the movable sleeve (311), and a reciprocating valve is arranged on the oil pipe.
6. The multiphase hydraulic means for gas well pressurization of claim 5, wherein: the number of the hydraulic devices (3) is 4 to 8, the exhaust pipeline (106) and the gas outlet pipeline (308) are communicated with a natural gas collecting net, and the sewage discharge pipeline (105) is communicated with an external sludge and wastewater treatment device.
7. The multiphase hydraulic means for gas well pressurization of claim 2, wherein: the hydraulic pump is characterized by further comprising an oil tank, a hydraulic pump and an explosion-proof motor, wherein the explosion-proof motor is connected with the hydraulic pump, the hydraulic pump is connected with the oil tank and is connected with an oil pipe of the hydraulic cylinder (306).
8. The multiphase hydraulic means for gas well pressurization of claim 2, wherein: the height of the hydraulic device (3) is 2-2.5 m, and the working pressure of the hydraulic device (3) is 2 MPa.
9. The multiphase hydraulic means for gas well pressurization of claim 1, wherein: the storage tank body (104) is characterized in that one side wall of the storage tank body (104) is obliquely arranged from top to bottom, the area of the bottom surface of the storage tank body is larger than that of the upper surface of the storage tank body, the exhaust pipeline (106) is arranged on the oblique wall, a blocking plate (109) is fixedly arranged on the oblique wall, the blocking plate (109) is positioned below the exhaust pipeline (106), and the blocking plate (109) is obliquely arranged towards the interior of the storage tank body (104).
CN201921869022.6U 2019-11-01 2019-11-01 Multiphase mixed-transportation hydraulic device for gas well pressurization Active CN211422621U (en)

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Application Number Priority Date Filing Date Title
CN201921869022.6U CN211422621U (en) 2019-11-01 2019-11-01 Multiphase mixed-transportation hydraulic device for gas well pressurization

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Application Number Priority Date Filing Date Title
CN201921869022.6U CN211422621U (en) 2019-11-01 2019-11-01 Multiphase mixed-transportation hydraulic device for gas well pressurization

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114837636A (en) * 2022-05-06 2022-08-02 西安奥德石油工程技术有限责任公司 Oil-gas field enzyme catalysis in-situ deep acidification liquid and acidification method and device thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114837636A (en) * 2022-05-06 2022-08-02 西安奥德石油工程技术有限责任公司 Oil-gas field enzyme catalysis in-situ deep acidification liquid and acidification method and device thereof
CN114837636B (en) * 2022-05-06 2022-12-27 西安奥德石油工程技术有限责任公司 Oil-gas field enzyme catalysis in-situ deep acidification liquid and acidification method and device thereof

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