CN112145106B - Combined rotational flow equal-diameter sand washer - Google Patents

Combined rotational flow equal-diameter sand washer Download PDF

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Publication number
CN112145106B
CN112145106B CN202011134435.7A CN202011134435A CN112145106B CN 112145106 B CN112145106 B CN 112145106B CN 202011134435 A CN202011134435 A CN 202011134435A CN 112145106 B CN112145106 B CN 112145106B
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sand
pipe
sand washing
baffle
seat
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CN112145106A (en
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吕楠
孙江
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SICHUAN GUANGHAN HENGSHENG PETROLEUM EQUIPMENT CO Ltd
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SICHUAN GUANGHAN HENGSHENG PETROLEUM EQUIPMENT CO Ltd
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Cleaning In General (AREA)

Abstract

The invention discloses a combined rotational flow equal-diameter sand washer, which adopts the technical scheme that: the sand washing device comprises a sand washing pipe, a connecting pipe, a sand washing seat and a backflow piece, wherein a positioning plate is fixedly installed on the inner side of the sand washing pipe, a spray seat is fixedly connected with the left end of the positioning plate, a spray nozzle is fixedly connected with the right end of the spray seat and extends to the right end of the positioning plate, a liquid conveying pipe is fixedly connected with the left end of the spray seat, a bearing is fixedly installed on the outer wall of the liquid conveying pipe, a turbine cylinder is fixedly installed on the outer side of the bearing, the backflow piece is fixedly installed on the right end of the positioning plate and comprises a baffle, a through hole is formed in the inner wall of the baffle, a connecting block is fixedly installed on the left end of the baffle, and a mandril is connected with the inner side of the connecting block through a thread, and the sand washing device has the advantages that: through set up the backward flow piece to nozzle tip, make the washing sand liquid can erode the backward flow mouth always, have the effect that prevents that the backward flow mouth from blockking up when the washing sand ware is carrying out the washing sand to the horizontal well.

Description

Combined rotational flow equal-diameter sand washer
Technical Field
The invention relates to a sand washing device for the petroleum industry, in particular to a combined rotational flow equal-diameter sand washing device.
Background
In the petroleum industry, three underground sand washing modes are provided, namely positive sand washing, reverse sand washing and positive and negative sand washing, the working fluid for sand washing is also various and is selected according to the physical properties of underground oil and gas reservoirs, a sand washer generally uses sand washing fluid and a sand washing construction pipe column to wash and carry out the stratum sand deposited in a production casing out of a shaft, and a flow passage of the stratum liquid is recovered, so that the normal production of an oil well is ensured, the horizontal well can enlarge the gas leakage area and improve the yield of a single well, the main well type for low-permeability oil and gas reservoir development is a well type for low-permeability oil and gas reservoirs, and for low-permeability oil and gas reservoirs, a water conservancy sand fracturing mode is usually adopted for transformation to increase the yield of the gas wells.
The prior art has the following defects: the existing sand washing device is easy to block a backflow port when sand washing is carried out on a horizontal well.
Therefore, the invention is necessary to invent the combined rotational flow isodiametric sand washer.
Disclosure of Invention
Therefore, the invention provides a combined rotational flow equal-diameter sand washer, which can enable sand washing liquid to be flushed to a backflow port all the time by arranging a backflow piece at the end part of a nozzle, so as to solve the problem that the backflow port is easy to block when the sand washer is used for washing sand of a horizontal well.
In order to achieve the above purpose, the invention provides the following technical scheme: a combined rotational flow equal-diameter sand washer comprises a sand washing pipe, a connecting pipe, a sand washing seat and a backflow piece, a positioning plate is fixedly arranged on the inner side of the sand washing pipe, the left end of the positioning plate is fixedly connected with a spray seat, the right end of the spray seat is fixedly connected with a nozzle, the nozzle extends to the right end of the positioning plate, the left end of the spray seat is fixedly connected with an infusion tube, the outer wall of the infusion tube is fixedly provided with a bearing, a turbine cylinder is fixedly arranged outside the bearing, the right end of the positioning plate is fixedly provided with the backflow piece, the reflux piece comprises a baffle plate, a through hole is arranged on the inner wall of the baffle plate, a connecting block is fixedly arranged at the left end of the baffle plate, the inner side of the connecting block is in threaded connection with an ejector rod, the ejector rod extends to the right side of the baffle plate, the left side of the baffle plate is fixedly provided with an anti-corrosion plate, the inner wall of the right end of the baffle is fixedly provided with a maintenance sheet, and the ejector rod is far away from one end of the baffle and is fixedly connected with the positioning plate.
Preferably, the connecting pipe is fixedly installed at the left end of the sand washing pipe, a threaded ring is fixedly installed on the inner side of the right end of the connecting pipe, the threaded ring is in threaded connection with the inner wall of the left end of the sand washing pipe, and a screw is fixedly installed at the joint of the connecting pipe and the sand washing pipe.
Preferably, the left end of the connecting pipe is fixedly provided with a positioning seat, the left end of the positioning seat is fixedly provided with a sand washing seat, the inner side of the sand washing seat is fixedly provided with a second sealing gasket, and the left end of the infusion tube penetrates through the inner wall of the positioning seat.
Preferably, the baffle is provided in a circular arc shape.
Preferably, the right end of the sand washing pipe is fixedly provided with a rubber block, and the inner wall of the positioning plate is provided with a backflow port.
Preferably, the nozzles are uniformly arranged in two groups, and the ejector rods are fixed on the inner sides of the nozzles.
Preferably, a positioning block is fixedly installed at the side end of the bearing, and backflow chambers are formed in the inner sides of the sand washing pipe and the connecting pipe.
Preferably, the mounting flange is fixed to the connecting pipe and the side end of the positioning seat, the first sealing gasket is fixedly mounted on the inner side of the flange, and the bolt is fixedly mounted on the inner wall of the flange.
The invention has the beneficial effects that:
the sand washing device comprises a sand washing pipe, a positioning plate, a spray pipe, a turbine cylinder, a backflow piece, a baffle plate and a connecting block, wherein the positioning plate is fixedly arranged on the inner side of the sand washing pipe, the sand washing pipe has the function of sand washing, the positioning plate has the function of fixing the spray seat, the left end of the positioning plate is fixedly connected with the spray seat, the spray seat has the function of fixing a nozzle, the right end of the spray seat is fixedly connected with the nozzle, the nozzle has the function of spraying sand washing liquid, the nozzle extends to the right end of the positioning plate, the left end of the spray seat is fixedly connected with the liquid conveying pipe, the liquid conveying pipe has the function of conveying sand washing liquid, a bearing is fixedly arranged on the outer wall of the liquid conveying pipe and has the function of positioning the turbine cylinder, the turbine cylinder has the function of rotating to enter mixed sand formed by sand and the sand washing liquid, the right end of the positioning plate is fixedly provided with the backflow piece, the backflow piece has the function of enabling the mixed sand liquid to flow to be not blocked, a through hole is formed in the inner wall of the baffle plate, and the through hole and the connecting block has the function of installing an ejector rod;
the left end of the baffle is fixedly provided with a connecting block, the inner side of the connecting block is in threaded connection with an ejector rod, the ejector rod has the function of positioning the position of the baffle, the ejector rod extends to the right side of the baffle, the left side of the baffle is fixedly provided with an anti-corrosion plate, the anti-corrosion plate has the function of protecting the baffle from being corroded by long-time scouring, the inner wall of the right end of the baffle is fixedly provided with a maintenance piece, the maintenance piece has the function of facilitating maintenance of a backflow piece, the ejector rod is far away from the end of the baffle and is fixedly connected with a positioning plate, the left end of the sand washing pipe is fixedly provided with a connecting pipe, the connecting pipe has the function of facilitating installation of a bearing and a turbine cylinder, the inner side of the right end of the connecting pipe is fixedly provided with a threaded ring, the threaded ring has the functions of fixing the connecting pipe and the sand washing pipe, the threaded ring is in threaded connection with the inner wall of the left end of the sand washing pipe, and a screw has the functions of fixing the threaded ring and the sand washing pipe;
connecting pipe left end fixed mounting positioning seat, the positioning seat has the effect of location transfer line, positioning seat left end fixed mounting sand washing seat, sand washing seat has fixed oil pipe's effect, the inboard fixed mounting of sand washing seat seals up sealed two, the transfer line left end passes the positioning seat inner wall, sealed two has sealed oil pipe's effect, sand washing pipe right-hand member fixed mounting rubber block, the rubber block has the effect of protection sand washing pipe, the backward flow mouth is seted up to the locating plate inner wall, the backward flow mouth has the effect that the backward flow mixes the sand liquid, the nozzle evenly sets up two sets ofly, the ejector pin is fixed at the nozzle inboardly, nozzle forty-five degree sprays sand washing liquid, bearing side fixed mounting locating piece, the backward flow room is seted up to sand washing pipe and connecting pipe inboard, the locating piece has fixing bearing's effect.
Drawings
FIG. 1 is a structural diagram of a combined cyclone isodiametric sand washer provided by the invention;
FIG. 2 is a right side view of a backflow part in the combined cyclone constant-diameter sand washer provided by the invention;
FIG. 3 is a front view of a backflow part in the combined cyclone constant-diameter sand washer provided by the invention;
FIG. 4 is a right side view of a turbine barrel in the combined cyclone isodiametric sand washer provided by the present invention;
FIG. 5 is a front view of a bearing in the combined cyclone isodiametric sand washer provided by the invention;
FIG. 6 is a structural diagram of embodiment 2 of the combined cyclone isodiametric sand washer provided by the invention.
In the figure: 1 sand washing pipe, 11 infusion pipes, 12 spray seats, 121 nozzles, 13 positioning plates, 131 backflow ports, 14 bearings, 15 turbine cylinders, 16 positioning blocks, 17 backflow chambers, 18 rubber blocks, 2 connecting pipes, 21 threaded rings, 22 screws, 23 flanges, 24 sealing gasket I, 25 bolts, 3 sand washing seats, 31 sealing gasket II, 32 positioning seats, 4 backflow pieces, 41 maintenance pieces, 42 through holes, 43 ejector rods, 44 baffles, 45 connecting blocks and 46 corrosion prevention plates.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1:
referring to the attached drawings 1-5, the combined rotational flow equal-diameter sand washer of the embodiment comprises a sand washing pipe 1, a connecting pipe 2, a sand washing seat 3 and a backflow piece 4;
further, a positioning plate 13 is fixedly installed on the inner side of the sand washing pipe 1, a spray base 12 is fixedly connected to the left end of the positioning plate 13, a nozzle 121 is fixedly connected to the right end of the spray base 12, the nozzle 121 extends to the right end of the positioning plate 13, a liquid conveying pipe 11 is fixedly connected to the left end of the spray base 12, a bearing 14 is fixedly installed on the outer wall of the liquid conveying pipe 11, a turbine cylinder 15 is fixedly installed on the outer side of the bearing 14, a backflow piece 4 is fixedly installed on the right end of the positioning plate 13, the backflow piece 4 comprises a baffle 44, a through hole 42 is formed in the inner wall of the baffle 44, a connecting block 45 is fixedly installed on the left end of the baffle 44, a push rod 43 is connected to the inner side of the connecting block 45 through threads, the push rod 43 extends to the right side of the baffle 44, an anti-corrosion plate 46 is fixedly installed on the left side of the baffle 44, a maintenance plate 41 is fixedly installed on the inner wall of the right end of the baffle 44, and one end of the push rod 43 far away from the baffle 44 is fixedly connected to the positioning plate 13, the sand washing pipe 1 has a sand washing effect, the positioning plate 13 has a function of fixing the sand washing base 12, the sand washing base 12 has a function of fixing the nozzle 121, the nozzle 121 has a function of spraying sand washing liquid, the infusion pipe 11 has a function of conveying the sand washing liquid, the bearing 14 has a function of positioning the turbine cylinder 15, the turbine cylinder 15 has a function of rotating mixed sand liquid formed by entering sand and the sand washing liquid, the backflow piece 4 has a function of enabling the mixed sand liquid to flow back without blocking, the baffle 44 has a function of blocking the mixed sand liquid, the through hole 42 and the connecting block 45 have a function of installing the ejector rod 43, the ejector rod 43 has a function of positioning the position of the baffle 44, the anticorrosive plate 46 is set to be a phenol-based anticorrosive plate, the anticorrosive plate 46 has a function of preventing the baffle 44 from being corroded for a long time, and the maintenance piece 41 has a function of facilitating maintenance of the backflow piece 4;
furthermore, the connecting pipe 2 is fixedly installed at the left end of the sand washing pipe 1, the threaded ring 21 is fixedly installed on the inner side of the right end of the connecting pipe 2, the threaded ring 21 is in threaded connection with the inner wall of the left end of the sand washing pipe 1, a screw 22 is fixedly installed at the joint of the connecting pipe 2 and the sand washing pipe 1, the connecting pipe 2 has the effect of facilitating installation of the bearing 14 and the turbine barrel 15, the threaded ring 21 has the effect of fixing the connecting pipe 2 and the sand washing pipe 1, and the screw 22 has the effect of fixing the threaded ring 21 and the sand washing pipe 1;
furthermore, a positioning seat 32 is fixedly installed at the left end of the connecting pipe 2, a sand washing seat 3 is fixedly installed at the left end of the positioning seat 32, a second sealing gasket 31 is fixedly installed on the inner side of the sand washing seat 3, the left end of the infusion pipe 11 penetrates through the inner wall of the positioning seat 32, the positioning seat 32 has the function of positioning the infusion pipe 11, the sand washing seat 3 has the function of fixing an oil pipe, and the second sealing gasket 31 has the function of sealing the oil pipe;
furthermore, the baffle 44 is arc-shaped, so that the sand-mixing fluid has the function of not blocking the backflow port 131 easily;
further, a rubber block 18 is fixedly installed at the right end of the sand washing pipe 1, a backflow port 131 is formed in the inner wall of the positioning plate 13, the rubber block 18 has the function of protecting the sand washing pipe 1, and the backflow port 131 has the function of backflow mixed sand liquid;
furthermore, two groups of nozzles 121 are uniformly arranged, the ejector rods 43 are fixed on the inner side of the nozzles 121, and the nozzles 121 spray sand washing liquid at forty-five degrees;
furthermore, a positioning block 16 is fixedly arranged at the side end of the bearing 14, a backflow chamber 17 is formed inside the sand washing pipe 1 and the connecting pipe 2, the positioning block 16 has the function of fixing the bearing 14, and the backflow chamber 17 has the function of backflow mixed sand liquid.
The using process of the invention is as follows: when the sand washing device is used, the positioning plate 13 is fixedly arranged on the inner side of the sand washing pipe 1, the sand washing pipe 1 has the function of washing sand, the positioning plate 13 has the function of fixing the spray base 12, the left end of the positioning plate 13 is fixedly connected with the spray base 12, the spray base 12 has the function of fixing the nozzle 121, the right end of the spray base 12 is fixedly connected with the nozzle 121, the nozzle 121 has the function of spraying sand washing liquid, the nozzle 121 extends to the right end of the positioning plate 13, the left end of the spray base 12 is fixedly connected with the infusion tube 11, the infusion tube 11 has the function of conveying the sand washing liquid, the outer wall of the infusion tube 11 is fixedly provided with the bearing 14, the bearing 14 has the function of positioning the turbine tube 15, the turbine tube 15 is fixedly arranged on the outer side of the bearing 14, the turbine tube 15 has the function of rotating mixed sand liquid formed by sand entering the sand and the sand washing liquid, the right end of the positioning plate 13 is fixedly provided with the backflow piece 4, the backflow piece 4 has the function of enabling the mixed sand liquid to flow back without blockage, the backflow piece 4 comprises the baffle plate 44, the baffle 44 has the effect of blocking mixed sand liquid, the inner wall of the baffle 44 is provided with the through hole 42, the through hole 42 and the connecting block 45 have the effect of installing the ejector rod 43, the left end of the baffle 44 is fixedly provided with the connecting block 45, the inner side of the connecting block 45 is in threaded connection with the ejector rod 43, the ejector rod 43 has the effect of positioning the position of the baffle 44, the ejector rod 43 extends to the right side of the baffle 44, the left side of the baffle 44 is fixedly provided with the corrosion prevention plate 46, the corrosion prevention plate 46 has the effect of long-time scouring and corrosion of the protective baffle 44, the inner wall of the right end of the baffle 44 is fixedly provided with the maintenance sheet 41, the maintenance sheet 41 has the effect of facilitating the maintenance of the backflow piece 4, the ejector rod 43 is far away from one end of the baffle 44 and is fixedly connected with the positioning plate 13, the left end of the sand washing pipe 1 is fixedly provided with the connecting pipe 2, the connecting pipe 2 has the effect of facilitating the installation of the bearing 14 and the turbine barrel 15, the inner side of the connecting pipe 2 is fixedly provided with the threaded ring 21, the threaded ring 21 is connected with the inner wall of the left end of the sand washing pipe 1 in a threaded manner, a screw 22 is fixedly arranged at the joint of the connecting pipe 2 and the sand washing pipe 1, the screw 22 has the function of fixing the threaded ring 21 and the sand washing pipe 1, the positioning seat 32 is fixedly arranged at the left end of the connecting pipe 2 and has the function of positioning the infusion pipe 11, the sand washing seat 3 is fixedly arranged at the left end of the positioning seat 32, the sand washing seat 3 has the function of fixing an oil pipe, a sealing gasket II 31 is fixedly arranged at the inner side of the sand washing seat 3, the left end of the infusion pipe 11 penetrates through the inner wall of the positioning seat 32, the sealing gasket II 31 has the function of sealing the oil pipe, a rubber block 18 is fixedly arranged at the right end of the sand washing pipe 1, the rubber block 18 has the function of protecting the sand washing pipe 1, a return opening 131 is formed in the inner wall of the positioning plate 13, the return opening 131 has the function of returning and mixing sand liquid, two groups of nozzles 121 are uniformly arranged, the push rods 43 are fixed at the inner side of the nozzles 121, and the sand washing pipe 121 is used for injecting sand washing liquid in forty-five degrees, bearing 14 side fixed mounting locating piece 16, return-flow chamber 17 is seted up to sand washing pipe 1 and connecting pipe 2 inboard, locating piece 16 has the effect of fixed bearing 14, after sand washing liquid comes out to the forty-five degrees outside by the injection of nozzle 121 and mixes with silt and receive baffle 44 to block back flow to return-flow opening 131 department, make return-flow opening 131 be in the state of erodeing always, prevent that return-flow opening 131 from blockking up the effect that influences the muddy sand liquid backward flow, then the muddy sand liquid passes through turbine section of thick bamboo 15, make turbine section of thick bamboo 15 fast rotate, make the muddy sand liquid evenly flow to inside the return-flow chamber 17, then the muddy sand liquid flows to the oil return pipe by return-flow chamber 17.
Example 2:
referring to fig. 6, the combined cyclone isodiametric sand washer of the embodiment includes a sand washing pipe 1, a connecting pipe 2, a sand washing base 3 and a backflow member 4;
furthermore, an installation flange 23 is fixed at the side end of the connecting pipe 2 and the positioning seat 32, a first sealing gasket 24 is fixedly installed on the inner side of the flange 23, a bolt 25 is fixedly installed on the inner wall of the flange 23, the flange 23 has the function of installing the connecting pipe 2 and the positioning seat 32, the first sealing gasket 24 has the function of sealing the flange 23, and the bolt 25 has the function of fixing the flange 23.
The using process of the invention is as follows: when the invention is used, a positioning plate 13 is fixedly arranged on the inner side of a sand washing pipe 1, the sand washing pipe 1 has the function of washing sand, the positioning plate 13 has the function of fixing a spray base 12, the left end of the positioning plate 13 is fixedly connected with the spray base 12, the spray base 12 has the function of fixing a nozzle 121, the right end of the spray base 12 is fixedly connected with the nozzle 121, the nozzle 121 has the function of spraying sand washing liquid, the nozzle 121 extends to the right end of the positioning plate 13, the left end of the spray base 12 is fixedly connected with a transfusion pipe 11, the transfusion pipe 11 has the function of conveying the sand washing liquid, a bearing 14 is fixedly arranged on the outer wall of the transfusion pipe 11, the bearing 14 has the function of positioning a turbine cylinder 15, a turbine cylinder 15 is fixedly arranged on the outer side of the bearing 14, the turbine cylinder 15 has the function of rotating mixed sand liquid formed by sand entering sand and the sand washing liquid, a mounting flange 23 is fixedly arranged on the side end of a connecting pipe 2 and the positioning base 32, a sealing gasket I24 is fixedly arranged on the inner side of the flange 23, a mounting bolt 25 is fixedly arranged on the inner wall of the flange 23, the flange 23 has the function of installing the connecting pipe 2 and the positioning seat 32, the first sealing gasket 24 has the function of sealing the flange 23, and the bolt 25 has the function of fixing the flange 23.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.

Claims (8)

1. The utility model provides a combined whirl constant diameter sand washer, includes sand washing pipe (1), connecting pipe (2), sand washing seat (3) and backward flow spare (4), its characterized in that: a positioning plate (13) is fixedly installed on the inner side of the sand washing pipe (1), the left end of the positioning plate (13) is fixedly connected with a spraying seat (12), the right end of the spraying seat (12) is fixedly connected with a nozzle (121), the nozzle (121) extends to the right end of the positioning plate (13), the left end of the spraying seat (12) is fixedly connected with a transfusion pipe (11), a bearing (14) is fixedly installed on the outer wall of the transfusion pipe (11), a turbine barrel (15) is fixedly installed on the outer side of the bearing (14), and the right end of the positioning plate (13) is fixedly installed with the backflow piece (4);
backflow spare (4) include baffle (44), through-hole (42) are seted up to baffle (44) inner wall, baffle (44) left end fixed mounting connecting block (45), connecting block (45) inboard threaded connection ejector pin (43), ejector pin (43) extend to baffle (44) right side, baffle (44) left side fixed mounting corrosion-resistant plate (46), baffle (44) right-hand member inner wall fixed mounting maintenance piece (41), ejector pin (43) are kept away from baffle (44) one end fixed connection locating plate (13).
2. The combined cyclone isodiametric sand washer as claimed in claim 1, wherein: the sand washing pipe is characterized in that the connecting pipe (2) is fixedly installed at the left end of the sand washing pipe (1), the threaded ring (21) is fixedly installed on the inner side of the right end of the connecting pipe (2), the threaded ring (21) is in threaded connection with the inner wall of the left end of the sand washing pipe (1), and a screw (22) is fixedly installed at the joint of the connecting pipe (2) and the sand washing pipe (1).
3. The combined cyclone constant diameter sand washer according to claim 1, wherein: the left end of the connecting pipe (2) is fixedly provided with a positioning seat (32), the left end of the positioning seat (32) is fixedly provided with a sand washing seat (3), the inner side of the sand washing seat (3) is fixedly provided with a second sealing gasket (31), and the left end of the infusion tube (11) penetrates through the inner wall of the positioning seat (32).
4. The combined cyclone constant diameter sand washer according to claim 1, wherein: the baffle (44) is arranged in a circular arc shape.
5. The combined cyclone constant diameter sand washer according to claim 1, wherein: the right end of the sand washing pipe (1) is fixedly provided with a rubber block (18), and the inner wall of the positioning plate (13) is provided with a return port (131).
6. The combined cyclone isodiametric sand washer as claimed in claim 1, wherein: two groups of nozzles (121) are uniformly arranged, and the ejector rods (43) are fixed on the inner side of the nozzles (121).
7. The combined cyclone constant diameter sand washer according to claim 1, wherein: a positioning block (16) is fixedly arranged at the side end of the bearing (14), and a backflow chamber (17) is formed in the inner sides of the sand washing pipe (1) and the connecting pipe (2).
8. The combined cyclone constant diameter sand washer according to claim 1, wherein: the connecting pipe (2) with the side end fixing and mounting flange (23) of the positioning seat (32), the inner side of the flange (23) is fixedly provided with a first sealing gasket (24), and the inner wall of the flange (23) is fixedly provided with a bolt (25).
CN202011134435.7A 2020-10-21 2020-10-21 Combined rotational flow equal-diameter sand washer Active CN112145106B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011134435.7A CN112145106B (en) 2020-10-21 2020-10-21 Combined rotational flow equal-diameter sand washer

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Application Number Priority Date Filing Date Title
CN202011134435.7A CN112145106B (en) 2020-10-21 2020-10-21 Combined rotational flow equal-diameter sand washer

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CN112145106B true CN112145106B (en) 2022-05-27

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6799645B2 (en) * 2002-12-10 2004-10-05 Shell Oil Company Method and apparatus for drilling and completing a well with an expandable sand control system
CN101092869B (en) * 2007-07-23 2010-05-12 辽河石油勘探局 Inverse circular sand washing adapter connector in rotary type of twin pipe
CN104047557B (en) * 2014-06-27 2016-08-31 西安中孚凯宏石油科技有限责任公司 Spiral flow sand washing device for horizontal well
CN204312047U (en) * 2014-11-27 2015-05-06 茹红丽 Coiled tubing hydraulic jetting fracturing device
CN205420801U (en) * 2016-03-09 2016-08-03 黄超越 Cloth dyeing device
CN110523586B (en) * 2019-09-25 2021-09-03 潍坊宏图环保设备有限公司 Painting device for producing irradiation crosslinking coiled material

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