CN116658130B - Anti-blocking self-cleaning sand filtering pipe for oil well - Google Patents
Anti-blocking self-cleaning sand filtering pipe for oil well Download PDFInfo
- Publication number
- CN116658130B CN116658130B CN202310943028.8A CN202310943028A CN116658130B CN 116658130 B CN116658130 B CN 116658130B CN 202310943028 A CN202310943028 A CN 202310943028A CN 116658130 B CN116658130 B CN 116658130B
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- pipe
- tube
- cleaning
- oil
- fixedly connected
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- 238000004140 cleaning Methods 0.000 title claims abstract description 76
- 238000001914 filtration Methods 0.000 title claims abstract description 48
- 239000004576 sand Substances 0.000 title claims abstract description 30
- 239000003129 oil well Substances 0.000 title claims abstract description 24
- 238000000605 extraction Methods 0.000 claims abstract description 39
- 230000005389 magnetism Effects 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 13
- 239000003208 petroleum Substances 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 10
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003027 oil sand Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- E21B43/02—Subsoil filtering
- E21B43/08—Screens or liners
- E21B43/086—Screens with preformed openings, e.g. slotted liners
-
- 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
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/08—Methods or apparatus for cleaning boreholes or wells cleaning in situ of down-hole filters, screens, e.g. casing perforations, or gravel packs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses an anti-blocking self-cleaning sand filtering pipe for an oil well, which belongs to the field of oil well exploitation tools and comprises an extraction pipe, wherein the lower end of the extraction pipe is fixedly connected with an outer filtering pipe, the lower end of the outer filtering pipe is fixedly connected with a protection head, and the upper end of the protection head is positioned in the outer filtering pipe and is fixedly connected with a supporting pipe. According to the invention, as time goes by, impurities in the first filter port can be gathered in the first filter port, at the moment, the flow of petroleum in the extraction pipe can be reduced, at the moment, the inner pipe can move downwards under the action of gravity so as to be inserted between the outer filter pipe and the support pipe, the inner pipe can clean the first filter port through the cleaning brush in the downward moving process, the top plate can be jacked again after petroleum enters the extraction pipe through the second filter port so as to reset the inner pipe, the cleaning brush can be used for cleaning the first filter port again in the resetting process, and the cleaning brush can be used for cleaning the first filter port through the up-down movement of the inner pipe.
Description
Technical Field
The invention relates to an oil well exploitation tool, in particular to an anti-blocking self-cleaning sand filtering pipe for an oil well.
Background
The oil pipeline is required to be used for extracting and transporting the oil in the process of transportation in the process of exploitation, and a large amount of impurities in the oil just exploited are easy to cause pipeline blockage, so that the oil sand filtering pipe is arranged at the end part of the oil pipeline when the oil is extracted and transported, and the impurities in the oil are filtered through the oil sand filtering pipe in order to avoid pipeline blockage. The conventional petroleum sand filtering pipe is generally provided with a filtering hole on the surface of the pipe body, impurities are filtered through the filtering hole, but petroleum can directly impact the filtering hole in the process of extraction, large gravel in the petroleum is easy to clamp in the filtering hole, the sand filtering pipe is easy to block, the use environment of the sand filtering pipe is generally underground, and when the sand filtering pipe is blocked, the sand filtering pipe is required to be taken out to clean the sand filtering pipe, so that the sand filtering pipe is very troublesome.
The Chinese patent with the publication number of CN113565468B discloses an oil well anti-blocking self-cleaning sand filtering pipe, which realizes layered cleaning of a filter screen through a scraping plate component, but the internal structure of the oil well anti-blocking self-cleaning sand filtering pipe is complex, precise meshing control is needed between all elements, power is also needed to be provided by a motor, the oil sand filtering pipe is generally underground when in use, the underground environment is complex and has high temperature, the motor is easy to load under the high-temperature environment, and the whole device cannot operate. Therefore, the invention provides an anti-blocking self-cleaning sand filtering pipe for an oil well, so as to solve the problems.
Disclosure of Invention
The invention aims to provide an anti-blocking self-cleaning sand filtering pipe for an oil well, so as to solve the problems in the background technology.
In order to achieve the above purpose, the invention provides an anti-blocking self-cleaning sand filtering pipe for an oil well, which comprises an extraction pipe, wherein the lower end of the extraction pipe is fixedly connected with an outer filtering pipe, the lower end of the outer filtering pipe is fixedly connected with a protection head, the upper end of the protection head is positioned in the outer filtering pipe and is fixedly connected with a supporting pipe, the outer walls of the outer filtering pipe and the supporting pipe are respectively provided with a first filtering port, a cleaning pipe for cleaning residues on the surface of the outer filtering pipe is arranged between the outer filtering pipe and the supporting pipe, and the cleaning pipe is in sliding connection with the extraction pipe.
As a further scheme of the invention, the cleaning pipe comprises an inner pipe, a plurality of cleaning brush plates for cleaning the first filter openings on the surface of the outer filter pipe are fixedly connected to the outer wall of the inner pipe, a plurality of cleaning brushes are fixedly connected to the outer wall of the cleaning brush plates, and the cleaning brush plates correspond to the first filter openings.
As a still further scheme of the invention, a plurality of second filter openings are respectively arranged among the plurality of cleaning plates, the second filter openings are divided into a plurality of columns to be uniformly distributed on the outer wall of the inner pipe, a plurality of shielding windows corresponding to the second filter openings are respectively arranged on the outer wall of the outer filter pipe, shielding plates are respectively and slidably connected in the shielding windows, and the shielding plates have magnetism.
As a still further scheme of the invention, a plurality of magnet plates are also arranged between the plurality of cleaning plates, a plurality of round windows are respectively arranged on the outer walls of the magnet plates, and the round windows correspond to the second filter openings.
As a still further scheme of the invention, a plurality of oil inlets are formed in the outer wall of the cleaning plate, the oil inlets penetrate through the outer wall of the inner tube, the inner diameter of each oil inlet is smaller than that of the first filter opening, a flow limiting plug is arranged in each oil inlet, a connecting spring is sleeved outside each flow limiting plug, and the connecting springs are fixedly connected with the inner wall of the inner tube.
As still further scheme of the invention, the inner part of the inner tube is fixedly connected with a top plate, an outer oil inlet window allowing petroleum to pass through is arranged between the top plate and the inner tube, and an inner oil inlet window allowing petroleum to pass through is arranged in the middle of the top plate.
As a still further scheme of the invention, a plurality of adjusting windows are further formed in the surface of the top plate, adjusting plates are rotatably connected in the adjusting windows, rotating shafts are fixedly connected in the middle of the adjusting plates, and the rotating shafts are connected through universal joints.
As a still further scheme of the invention, the two adjusting windows are internally symmetrically and slidingly connected with racks, the upper ends of the racks are meshed with gears, the gears are fixedly connected with a rotating shaft above the racks, a connecting plate is fixedly connected between the two racks, and one end of the connecting plate, which is far away from the racks, is rotationally connected with an adjusting screw.
Compared with the prior art, the invention has the beneficial effects that:
1. when the oil filter is used, the oil is filtered to remove impurities when passing through the first filter port, the impurities in the first filter port are accumulated in the first filter port along with the time, the accumulated oil is difficult to enter the extraction pipe through the first filter port, the flow of the oil in the extraction pipe is reduced, the oil is difficult to continuously support the top plate along with the reduction of the oil circulation, the inner pipe moves downwards under the action of gravity and is inserted between the outer filter pipe and the supporting pipe, the first filter port is cleaned through the cleaning brush in the downward movement process of the inner pipe, the impurities in the first filter port are removed, the top plate is jacked up again after the oil enters the extraction pipe through the second filter port, the inner pipe is reset again by utilizing the cleaning brush in the resetting process, and the first filter port can be cleaned by means of the cleaning brush through the up-down movement of the inner pipe.
2. When the oil inlet is in contact with the protection head, the oil inlet is in a state corresponding to the first filter opening, oil enters the extraction pipe through the oil inlet, the oil pushes the flow limiting plug when the oil flows into the oil inlet, the flow limiting plug is pushed to press the connecting spring, the oil flows to the extraction pipe together with the oil inlet through the second filter opening, the amount of the oil entering the extraction pipe is increased, and therefore the inner pipe can be reset more quickly, the flow limiting plug moves into the oil inlet under the action of the connecting spring when the inner pipe is reset, self cleaning of the oil inlet is completed, and the cleaning brush also cleans the second filter opening when the inner pipe is reset, so that impurities in the oil are prevented from affecting normal use of the oil inlet cleaning device.
Drawings
Fig. 1 is a schematic structural view of an anti-blocking self-cleaning sand filtering pipe for an oil well.
Fig. 2 is a split view of the anti-clogging self-cleaning sand screen of the oil well.
Fig. 3 is a cross-sectional view of the oil well anti-clogging self-cleaning sand screen.
Fig. 4 is a structural diagram of an outer filter tube in the anti-clogging self-cleaning sand filter tube of the oil well.
Fig. 5 is a structural diagram of a cleaning pipe in the anti-clogging self-cleaning sand filtering pipe of the oil well.
Fig. 6 is an enlarged schematic view of the anti-clogging self-cleaning sand screen of the present well at a point a in fig. 3.
Fig. 7 is a schematic diagram showing connection between a top plate and an inner pipe in the anti-blocking self-cleaning sand filtering pipe of the oil well.
Fig. 8 is an internal structural view of a top plate in the anti-clogging self-cleaning sand screen of the oil well.
Fig. 9 is a structural view of a top plate in the anti-clogging self-cleaning sand screen of the oil well.
In the figure: 1. an extraction tube; 2. an outer filter tube; 3. a protective head; 4. a support tube; 5. cleaning the tube; 6. a top plate; 7. a slide block; 8. an outer oil inlet window; 9. an inner oil inlet window; 10. plugging the bolts; 11. a sliding groove; 200. a first filter; 201. shielding the window; 202. a shielding plate; 500. an inner tube; 501. a cleaning plate; 502. an oil inlet; 503. cleaning a brush; 504. a flow restricting plug; 505. a second filter port; 506. a magnet plate; 507. cleaning a hairbrush; 600. adjusting the window; 601. an adjusting plate; 602. a limit bar; 603. a rotating shaft; 604. a rack; 605. adjusting a screw; 606. and (5) connecting a plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 9, in the embodiment of the invention, an anti-blocking self-cleaning sand filtering pipe for an oil well comprises an extraction pipe 1, wherein the lower end of the extraction pipe 1 is fixedly connected with an outer filtering pipe 2, the lower end of the outer filtering pipe 2 is fixedly connected with a protection head 3, the upper end of the protection head 3 is positioned inside the outer filtering pipe 2 and is fixedly connected with a support pipe 4, the inner diameter of the support pipe 4 is smaller than that of the outer filtering pipe 2, first filter openings 200 are formed in the outer walls of the outer filtering pipe 2 and the support pipe 4, a cleaning pipe 5 for cleaning residues on the surface of the outer filtering pipe 2 is arranged between the outer filtering pipe 2 and the support pipe 4, and the cleaning pipe 5 is in sliding connection with the extraction pipe 1.
The cleaning tube 5 comprises an inner tube 500, sliding blocks 7 are symmetrically and fixedly connected to the outer wall of the inner tube 500, sliding grooves 11 corresponding to the sliding blocks 7 are formed in the inner wall of the extraction tube 1, the sliding blocks 7 are positioned in the sliding grooves 11, the sliding blocks 7 can slide in the sliding grooves 11, a plurality of cleaning plates 501 for cleaning the first filter openings 200 on the surface of the outer filter tube 2 are fixedly connected to the outer wall of the inner tube 500, a plurality of cleaning brushes 503 are fixedly connected to the outer wall of the cleaning plates 501, the cleaning plates 501 correspond to the first filter openings 200, specifically, the first filter openings 200 on the surfaces of the outer filter tube 2 and the support tube 4 are divided into a plurality of rows so as to be uniformly distributed on the surfaces of the outer filter tube 2 and the support tube 4, the number of the first filter openings 200 is the same as the number of the cleaning plates 501, one cleaning plate 501 corresponds to one row of the first filter openings 200, a plurality of second filter openings 505 are formed among the cleaning plates 501, the second filter openings 505 are divided into a plurality of rows and uniformly distributed on the outer wall of the inner tube 500, the second filter openings 505 and the first filter openings 200 are staggered with each other, a plurality of shielding windows 201 corresponding to the second filter openings 505 are formed on the outer wall of the outer filter tube 2, shielding plates 202 are slidably connected in the shielding windows 201, the shielding plates 202 are magnetic, cleaning brushes 507 are fixedly connected on the inner wall of the extraction tube 1, and the height of the cleaning brushes 507 is the same as that of the sliding grooves 11.
Specifically, a storage groove is formed in the inner bottom end of the shielding window 201, the shielding plate 202 is inserted into the storage groove, the shielding plate 202 can slide in the storage groove, the storage groove is internally fixedly connected with supporting elastic pieces, the supporting elastic pieces are arranged in a V shape, and the shielding plate 202 can be supported through the supporting elastic pieces, so that the upper end of the shielding plate 202 is attached to the inner top end of the shielding window 201, and the whole shielding window 201 is shielded by the shielding plate 202;
a plurality of magnet plates 506 are also arranged between the plurality of cleaning plates 501, a plurality of round windows are arranged on the outer walls of the magnet plates 506, and the round windows correspond to the second filter openings 505;
a plurality of oil inlets 502 are formed in the outer wall of the cleaning plate 501, the oil inlets 502 penetrate through the outer wall of the inner pipe 500, the inner diameter of each oil inlet 502 is smaller than that of the first filter port 200, a flow limiting plug 504 is arranged in each oil inlet 502, the outer diameter of each flow limiting plug 504 is smaller than that of each oil inlet 502, a connecting spring is sleeved outside each flow limiting plug 504, and the connecting springs are fixedly connected with the inner wall of the inner pipe 500;
the inside of the inner pipe 500 is fixedly connected with a top plate 6, an outer oil inlet window 8 allowing oil to pass through is arranged between the top plate 6 and the inner pipe 500, an inner oil inlet window 9 allowing oil to pass through is arranged in the middle of the top plate 6, a plurality of adjusting windows 600 are also arranged on the surface of the top plate 6, an adjusting plate 601 is rotatably connected in the adjusting windows 600, two limiting strips 602 are fixedly connected to the inner side wall of the adjusting window 600, the two limiting strips 602 are respectively positioned on the upper side and the lower side of the adjusting plate 601, the adjusting plate 601 can be prevented from rotating due to oil impact to the adjusting plate 601 through the limiting strips 602, rotating shafts 603 are fixedly connected in the middle of the adjusting plates 601, and the rotating shafts 603 are connected through universal joints;
wherein the inside symmetry and sliding connection of two adjustment windows 600 have rack 604, and the upper end meshing of rack 604 has the gear, the gear is with the axis of rotation 603 fixed connection that is in rack 604 top, fixedly connected with connecting plate 606 between two racks 604, the one end that rack 604 was kept away from to connecting plate 606 rotates and is connected with adjusting screw 605, adjusting screw 605 runs through roof 6 and slider 7 in proper order, threaded connection between adjusting screw 605 and the roof 6, adjusting screw 605 rotates with slider 7 to be connected, and the spanner groove has been seted up to the one end that connecting plate 606 was kept away from to adjusting screw 605, and the symmetry has been seted up the regulation hole on the outer wall of extraction pipe 1, the internal thread connection of regulation hole has shutoff bolt 10.
The working principle of the invention is as follows:
when the oil extraction device is used, the extraction pipe 1 is connected with an oil pipeline, oil enters the extraction pipe 1 through the first filter port 200 in the oil extraction process, then is conveyed to a designated storage place along the oil pipeline, the oil drives the inner pipe 500 to move upwards through the top plate 6 when flowing in the extraction pipe 1, the inner pipe 500 stops moving when the sliding block 7 moves to the top end of the sliding groove 11, the oil is filtered out of impurities when passing through the first filter port 200, the impurities in the first filter port 200 are accumulated in the first filter port 200 along with the time, the oil is difficult to enter the extraction pipe 1 through the first filter port 200 along with the accumulation of the impurities, the flow of the oil in the extraction pipe 1 is reduced at the moment, the oil is difficult to continue to support the top plate 6 along with the reduction of the flow of the oil, and the inner pipe 500 moves downwards under the action of gravity and is inserted between the outer filter pipe 2 and the support pipe 4 at the moment;
the magnet plate 506 drives the shielding plate 202 to slide in the shielding window 201 through magnetic force in the process of downward movement of the inner tube 500, so that the shielding plate 202 is accommodated in the accommodating groove, and the shielding window 201 is opened, and when the lower end of the inner tube 500 is contacted with the protective head 3, the second filter opening 505 is aligned with the shielding window 201, and petroleum enters the extraction tube 1 through the shielding window 201;
the inner tube 500 cleans the first filter port 200 through the cleaning brush 503 in the downward moving process, so as to remove impurities in the first filter port 200, and when oil enters the extraction tube 1 through the second filter port 505, the top plate 6 is jacked up again to reset the inner tube 500 (the oil entering the extraction tube 1 through the second filter port 505 is not affected by impurities in the first filter port 200, that is, the oil can smoothly pass through the second filter port 505), the inner tube 500 cleans the first filter port 200 through the cleaning brush 503 again in the resetting process, and the first filter port 200 can be cleaned by the cleaning brush 503 through the up-down movement of the inner tube 500;
when the lower end of the inner tube 500 contacts the protection head 3, the oil inlet 502 is in a state corresponding to the first filter port 200, and oil enters the extraction tube 1 through the oil inlet 502 (when the lower end of the inner tube 500 contacts the protection head 3, the cleaning brush 503 has cleaned the first filter port 200, and oil enters the extraction tube 1 through the first filter port 200), and when oil flows into the oil inlet 502, the oil pushes the flow limiting plug 504, the flow limiting plug 504 is pushed to press the connecting spring, and the oil flows to the extraction tube 1 together with the oil inlet 502 through the second filter port 505, so that the oil can be reset more quickly, and when the inner tube 500 is reset, the flow limiting plug 504 moves into the oil inlet 502 under the action of the connecting spring, so as to finish self-cleaning of the oil inlet 502;
before use, the extraction pipe 1 can be placed upside down so that the inner pipe 500 is positioned in the extraction pipe 1, then the plugging bolt 10 is removed, a spanner is connected with the adjusting screw 605 through an adjusting hole, then the adjusting screw 605 is rotated to push the rack 604 to move, the rack 604 can drive the gear to rotate when moving, the rotating shaft 603 connected with the rack can be driven to rotate when rotating, and the rotating shaft 603 connected with the gear can drive other rotating shafts 603 to rotate through universal joints, so that the adjusting plate 601 rotates, and then the adjusting window 600 is opened, in this way, the resistance when petroleum flows through the top plate 6 can be reduced (when the adjusting window 600 is not opened, petroleum can only flow through the top plate 6 through the outer oil inlet window 8 and the inner oil inlet window 9 at this time, and when the adjusting window 600 is opened, the resistance can obviously drop when petroleum flows through the top plate 6 at this moment, the invention can be applied to different places (for places rich in petroleum, the places can be opened, the petroleum can jack up the top plate 6 can be closed more than the places 1, and the top plate 6 can be closed, and the flow can be closed up enough to the top plate 6 can be opened).
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (4)
1. The utility model provides an oil well prevents blockking up self-cleaning sand filtering pipe, includes extraction pipe (1), its characterized in that, the lower extreme fixedly connected with outer filter tube (2) of extraction pipe (1), the lower extreme fixedly connected with protection head (3) of outer filter tube (2), the upper end of protection head (3) is located the inside of outer filter tube (2) and fixedly connected with stay tube (4), first filter opening (200) have all been seted up on the outer wall of outer filter tube (2) and stay tube (4), just install between outer filter tube (2) and stay tube (4) and be used for clearing up cleaning tube (5) of outer filter tube (2) surface residue, just cleaning tube (5) and extraction pipe (1) sliding connection, cleaning tube (5) are including inner tube (500), a plurality of brush plates (501) that are used for clearing up outer filter tube (2) surface first filter opening (200) of fixedly connected with on the outer wall of inner tube (500), brush plates (501) are fixedly connected with on the outer wall of brush plates (503), and a plurality of brush plates (501) are evenly distributed with a plurality of second filter openings (505) are evenly arranged between a plurality of inner tube (505), and offer a plurality of shielding windows (201) that correspond with second straining hole (505) on the outer wall of outer filter tube (2), the inside of shielding window (201) is all sliding connection has shielding plate (202), just shielding plate (202) have magnetism, a plurality of still install a plurality of magnet boards (506) between the clear brush board (501), a plurality of circular windows have all been offered on the outer wall of magnet board (506), just circular window corresponds with second straining hole (505), a plurality of oil inlets (502) have all been offered on the outer wall of clear brush board (501), just oil inlet (502) run through the outer wall of inner tube (500), the internal diameter of oil inlet (502) is less than the internal diameter of first straining hole (200), just the inside of oil inlet (502) all is equipped with current limiting plug (504), the outside cover of current limiting plug (504) is equipped with connecting spring, just connecting spring and the inner wall fixed connection of inner tube (500).
2. The anti-clogging self-cleaning sand filtering pipe for an oil well according to claim 1, wherein a top plate (6) is fixedly connected to the inside of the inner pipe (500), an outer oil inlet window (8) allowing oil to pass through is arranged between the top plate (6) and the inner pipe (500), and an inner oil inlet window (9) allowing oil to pass through is formed in the middle of the top plate (6).
3. The anti-blocking self-cleaning sand filtering pipe for the oil well according to claim 2, wherein a plurality of adjusting windows (600) are further formed in the surface of the top plate (6), adjusting plates (601) are rotatably connected in the adjusting windows (600), rotating shafts (603) are fixedly connected in the middle of the adjusting plates (601), and the rotating shafts (603) are connected through universal joints.
4. The anti-clogging self-cleaning sand filtering pipe for an oil well according to claim 3, wherein two adjusting windows (600) are internally symmetrical and are slidingly connected with racks (604), gears are meshed with the upper ends of the racks (604), the gears are fixedly connected with a rotating shaft (603) above the racks (604), a connecting plate (606) is fixedly connected between the two racks (604), and one end, far away from the racks (604), of the connecting plate (606) is rotatably connected with an adjusting screw (605).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310943028.8A CN116658130B (en) | 2023-07-31 | 2023-07-31 | Anti-blocking self-cleaning sand filtering pipe for oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310943028.8A CN116658130B (en) | 2023-07-31 | 2023-07-31 | Anti-blocking self-cleaning sand filtering pipe for oil well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116658130A CN116658130A (en) | 2023-08-29 |
| CN116658130B true CN116658130B (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310943028.8A Active CN116658130B (en) | 2023-07-31 | 2023-07-31 | Anti-blocking self-cleaning sand filtering pipe for oil well |
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| CN (1) | CN116658130B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118292812B (en) * | 2024-06-05 | 2024-10-01 | 东营市华科石油科技开发有限责任公司 | Anti-blocking sand filtering pipe for oil well |
| CN119221870B (en) * | 2024-12-03 | 2025-03-14 | 克拉玛依四维石油科技有限公司 | A flow-disturbing, long-term anti-corrosion and anti-scaling device for underground and surface pipelines |
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