CN113565461B - Multistage controllable magnetic anti-sticking device - Google Patents
Multistage controllable magnetic anti-sticking device Download PDFInfo
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- CN113565461B CN113565461B CN202110755931.2A CN202110755931A CN113565461B CN 113565461 B CN113565461 B CN 113565461B CN 202110755931 A CN202110755931 A CN 202110755931A CN 113565461 B CN113565461 B CN 113565461B
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- ring
- sticking
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 99
- 238000004140 cleaning Methods 0.000 claims description 40
- 230000005389 magnetism Effects 0.000 claims description 17
- 238000010030 laminating Methods 0.000 claims 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 84
- 229910052742 iron Inorganic materials 0.000 description 42
- 238000000034 method Methods 0.000 description 8
- 239000003129 oil well Substances 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/06—Fishing for or freeing objects in boreholes or wells using magnetic means
-
- 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
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Marine Sciences & Fisheries (AREA)
- Soft Magnetic Materials (AREA)
- Electromagnets (AREA)
Abstract
The invention relates to the technical field of anti-sticking devices, and discloses a multistage controllable magnetic anti-sticking device which comprises an upper joint, a lower joint, a central pipe and an outer pipe, wherein the bottom end of the upper joint is provided with the central pipe, the bottom end of the central pipe is provided with the lower joint, the top of the outer wall of the central pipe is provided with a first-stage magnetic anti-sticking device, the middle of the outer wall of the central pipe is provided with a second-stage magnetic anti-sticking device, the bottom of the outer wall of the central pipe is provided with a third-stage magnetic anti-sticking device, the outer wall of the first-stage magnetic anti-sticking device is surrounded by a containing groove, the left side and the right side of the outer ring at the bottom end of the upper joint are provided with hydraulic cylinders, the bottom ends of the hydraulic cylinders are provided with hydraulic rods, and the quantity of the hydraulic rods is two groups.
Description
Technical Field
The invention relates to the technical field of anti-sticking devices, in particular to a multistage controllable magnetic anti-sticking device.
Background
The oil well is a borehole drilled by a drilling method; after the oil layer is drilled, the oil layer casing is put into the oil well, and the annular space between casing and well wall is filled with oil well cement to maintain well wall and seal oil, gas and water layers, then the oil layer is jetted out by perforating gun to form channel and put into oil pipe to raise the oil from bottom to top of well.
The patent is installed between pipe columns on the upper portion of an oil well pump, ferromagnetic substances can be effectively adsorbed to prevent the ferromagnetic substances from falling into the oil well pump, iron scrap blocking accidents are avoided, the design is novel, the structure is scientific, the cost is low, the device is easy to popularize and apply, but the iron scrap is magnetically adsorbed to the outer wall of the anti-blocking device, the iron scrap is easily taken down in the lifting process of a rod pump, and meanwhile, the lifting activity of the rod pump is still influenced after the iron scrap is accumulated more and more along with the time lapse, so that the iron scrap falls off, and the blocking is easily caused.
Therefore, the multistage controllable magnetic anti-blocking device is beneficial to magnetic adsorption of iron rust and reduction of iron scrap accumulation, iron scrap is cleaned regularly and collected and summarized, and the phenomenon that the iron scrap accumulated in the lifting process of the rod pump is changed down to cause blocking of the rod pump is avoided.
Disclosure of Invention
The invention aims to provide a multistage controllable magnetic anti-sticking device, which solves the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: multistage controllable magnetism anti-sticking ware, including top connection, lower clutch, center tube and outer tube, the center tube is installed to the top connection bottom, the lower clutch is installed to the center tube bottom, one-level magnetism anti-sticking ware is installed at center tube outer wall top, center tube outer wall mid-mounting has second grade magnetism anti-sticking ware, tertiary magnetism anti-sticking ware is installed to center tube outer wall bottom, one-level magnetism anti-sticking ware outer wall is encircleed and is seted up holding groove, the pneumatic cylinder is all installed to top connection bottom outer loop left and right sides, the hydraulic stem is installed to the hydraulic cylinder bottom, and the quantity of hydraulic stem is two sets of, and is two sets of the terminal corresponding clearance ring outer wall both sides of hydraulic stem are fixed mutually, clearance line has been seted up to the clearance ring inner wall, lower clutch top outer loop fixed mounting has the annular containing ring of air cavity, the containing ring top is seted up sunken form containing groove, containing ring outer wall is encircleed and is evenly seted up the gas pocket, gas cavity quantity is more than three groups and the intercommunication containing groove, the annular is installed to the gas cavity outer wall, the ring bottom is connected through the connecting pipe connection, there is clear ring outer wall.
As a preferred embodiment of the present invention, the structure of the primary magnetic anti-seizing device, the structure of the secondary magnetic anti-seizing device and the structure of the tertiary magnetic anti-seizing device are the same.
In a preferred embodiment of the present invention, the inner wall of the cleaning ring is nested with the outer wall of the first magnetic anti-seizing device, and the inner wall of the cleaning pattern is nested with the outer wall of the containing groove.
As a preferred embodiment of the present invention, an electromagnetic coil is installed in the central tube, and an outer wall of the electromagnetic coil is attached to inner walls of the primary magnetic anti-seizing device, the secondary magnetic anti-seizing device, and the tertiary magnetic anti-seizing device.
In a preferred embodiment of the invention, an outer pipe is nested between the upper joint and the lower joint, the top inner wall of the outer pipe is attached to the bottom of the outer wall of the upper joint, and the bottom inner wall of the outer pipe is attached to the top outer wall of the lower joint.
As a preferred embodiment of the present invention, the bottom of the cleaning ring is provided with an inwardly inclined lower scraper, and the top of the cleaning ring is provided with a recessed accommodating cavity.
In a preferred embodiment of the present invention, the position of the cleaning ring corresponds to the position of the receiving ring.
In a preferred embodiment of the present invention, the upper joint, the central tube and the lower joint are provided with through holes in the middle.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, through the arrangement of the hydraulic cylinder, the hydraulic rod, the cleaning ring, the containing groove and the cleaning lines, the scrap iron is adsorbed by the magnetic anti-jamming device, the hydraulic cylinder is started again to drive the hydraulic rod and the cleaning ring to descend, the scrap iron in the containing groove of the magnetic anti-jamming device corresponding to the cleaning lines of the cleaning ring is scraped, and then the scrap iron enters the containing groove in the containing ring, so that the scrap iron is cleaned regularly and collected, and the phenomenon that the accumulated scrap iron is changed in the lifting process of the rod pump to cause the jamming of the rod pump is avoided.
2. According to the invention, through the arrangement of the electromagnetic coil, the primary magnetic anti-sticking device, the second magnetic anti-sticking device, the third magnetic anti-sticking device and the accommodating groove, the primary magnetic anti-sticking device, the second magnetic anti-sticking device and the third magnetic anti-sticking device generate magnetic force to adsorb scrap iron by starting the electromagnetic coil, the scrap iron enters the accommodating groove, the accumulation of the scrap iron on the outer wall of the magnetic anti-sticking device is reduced, and the scrap iron at each position can be adsorbed by the multi-level magnetic anti-sticking device.
3. According to the invention, through the arrangement of the hole body, the air cavity, the communicating ring and the cleaning pipe, magnetism is eliminated by closing the electromagnetic coil, and the external air suction pump corresponds to the cleaning pipe, so that scrap iron in the accommodating groove is discharged through the hole body, the air cavity and the communicating ring in sequence, the scrap iron is conveniently and quickly cleaned out, and the scrap iron accumulation is avoided.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic view of the overall external structure of the multistage controllable magnetic anti-seizing device of the present invention;
FIG. 2 is a schematic view of the overall internal structure of the multi-stage controllable magnetic anti-seizing device of the present invention;
FIG. 3 is a schematic diagram of a cleaning ring structure of the multistage controllable magnetic anti-seize device of the present invention;
FIG. 4 is a schematic view of a first-stage magnetic anti-seize device of the multi-stage controllable magnetic anti-seize device of the present invention;
FIG. 5 is a schematic view of a receiving ring structure of the multistage controllable magnetic anti-seize device of the present invention;
FIG. 6 is a schematic view of the lower structure of the receiving ring of the multistage controllable magnetic anti-seizing device of the present invention.
In the figure: 1. a lower joint; 2. a receiving ring; 3. a tertiary magnetic anti-seize device; 4. a secondary magnetic anti-seize device; 5. a containing groove; 6. a primary magnetic anti-seize device; 7. an upper joint; 8. a receiving groove; 9. a lower scraper; 10. cleaning a ring; 11. an accommodating chamber; 12. a hydraulic cylinder; 13. a hydraulic rod; 14. an outer tube; 15. a central tube; 16. an electromagnetic coil; 17. a porous body; 18. cleaning the lines; 19. an air cavity; 20. a communication ring; 21. and (6) cleaning the pipe.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention; in the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-6, the present invention provides a technical solution: the multistage controllable magnetic anti-sticking device comprises an upper joint 7, a lower joint 1, a central tube 15 and an outer tube 14, wherein the central tube 15 is installed at the bottom end of the upper joint 7, the lower joint 1 is installed at the bottom end of the central tube 15, a first-stage magnetic anti-sticking device 6 is installed at the top of the outer wall of the central tube 15, a second-stage magnetic anti-sticking device 4 is installed at the middle part of the outer wall of the central tube 15, a third-stage magnetic anti-sticking device 3 is installed at the bottom end of the outer wall of the central tube 15, a first-stage magnetic anti-sticking device 6 is arranged at the outer wall of the first-stage magnetic anti-sticking device 6, a containing groove 5 is arranged around the outer wall of the bottom end of the upper joint 7, hydraulic cylinders 12 are installed at the left side and the right side of the outer ring of the bottom end of the upper joint 7, hydraulic rods 13 are arranged in two groups, the two groups of hydraulic rods 13 are fixed at the two sides corresponding to the outer wall of the cleaning ring 10, cleaning patterns 18 are arranged on the inner wall of the cleaning ring 10, a circular containing ring 2 is fixedly installed at the outer ring at the top end of the lower joint 1, accomodate 2 tops of ring and offer sunken form accomodate groove 8, accomodate 2 outer walls of ring and encircle evenly to offer the gas pocket, gas pocket quantity is three groups above and the intercommunication accomodates groove 8, the annular air chamber 19 of gas pocket outer wall installation, the intercommunication ring 20 is connected through the connecting pipe in 19 bottoms of air chamber, intercommunication ring 20 outer wall left end intercommunication has cleaning tube 21, wherein, in pump pole activity process, produces the opposite sex iron fillings, makes one-level magnetism anti-sticking ware 6, second magnetism anti-sticking ware 4 and tertiary magnetism anti-sticking ware 3 form magnetic adsorption through starting solenoid 16, forms the absorption with the iron fillings that produce in the pump pole activity process, and rethread pneumatic cylinder 12 drives hydraulic stem 13 and cleaning ring 10 and descends (closes solenoid 16 simultaneously) for the lower scraper 9 and the clear stream line 18 of cleaning ring 10 are in proper order to tertiary magnetism anti-sticking ware 3, second magnetism anti-sticking ware 4 and the iron fillings of 6 outer wall container grooves 5 of one-level magnetism anti-sticking ware are scraped down, make iron fillings get into and accomodate ring 2 and accomodate the groove 8 in, and make iron fillings adsorb in accomodating the groove 8, correspond clearance pipe 21 with outside aspiration pump again and be linked together, make the iron fillings of accomodating the groove 8 loop through the hole body, air cavity 19 and go-between 20 take clearance pipe 21 out, accomplish the clearance of iron rust, drive hydraulic stem 13 and clearance ring 10 with pneumatic cylinder 12 again and reset, restart solenoid 16 simultaneously.
In this embodiment, referring to fig. 1, the structure of the first-level magnetic anti-jamming device 6, the structure of the second-level magnetic anti-jamming device 4 and the structure of the third-level magnetic anti-jamming device 3 are the same, wherein the electromagnetic coil 16 is activated to enable the first-level magnetic anti-jamming device 6, the second-level magnetic anti-jamming device 4 and the third-level magnetic anti-jamming device 3 to generate magnetic force to adsorb iron filings, the iron filings enter the accommodating groove 5, the accumulation of the iron filings on the outer wall of the magnetic anti-jamming device is reduced, and the iron filings at various positions can be adsorbed by the multi-level magnetic anti-jamming device
In this embodiment, referring to fig. 1 to 4, the inner wall of the cleaning ring 10 is nested with respect to the outer wall of the first magnetic anti-seizing device, the inner wall of the cleaning pattern 18 is nested with respect to the outer wall of the accommodating groove 5, wherein the cleaning pattern 18 inside the cleaning ring 10 is fitted with respect to the outer wall of the first magnetic anti-seizing device 6, the second magnetic anti-seizing device 4 and the third magnetic anti-seizing device 3 to form a scraping action.
In this embodiment, referring to fig. 2, an electromagnetic coil 16 is installed in the central tube 15, an outer wall of the electromagnetic coil 16 is attached to inner walls of the first-stage magnetic anti-seizing device 6, the second-stage magnetic anti-seizing device 4 and the third-stage magnetic anti-seizing device 3, wherein magnetic force adsorption iron filings are formed on the first-stage magnetic anti-seizing device 6, the second-stage magnetic anti-seizing device 4 and the third-stage magnetic anti-seizing device 3 by opening the electromagnetic coil 16.
In this embodiment, referring to fig. 2, an outer tube 14 is nested on an outer wall between the upper joint 7 and the lower joint 1, an inner wall at the top of the outer tube 14 is attached to the bottom of the outer wall of the upper joint 7, an inner wall at the bottom of the outer tube 14 is attached to an outer wall at the top of the outer wall of the lower joint 1, wherein the first-stage magnetic anti-seizing device 6, the second-stage magnetic anti-seizing device 4 and the third-stage magnetic anti-seizing device 3 are located inside the outer tube 14 by nesting the upper joint 7 and the lower joint 1 corresponding to the inner walls of the outer tube 14.
In this embodiment, referring to fig. 2, the bottom of the cleaning ring 10 is provided with a lower scraper 9 inclined inward, and the top of the cleaning ring 10 is provided with a concave accommodating cavity 11, wherein the lower scraper 9 can scrape iron filings on the outer walls of the first-level magnetic anti-seizing device 6, the second magnetic anti-seizing device 4 and the third-level magnetic anti-seizing device 3, so as to prevent the iron filings from accumulating on the outer walls of the first-level magnetic anti-seizing device 6, the second magnetic anti-seizing device 4 and the third-level magnetic anti-seizing device 3.
In the embodiment, referring to fig. 1 to 4, the position of the cleaning ring 10 corresponds to the position of the receiving ring 2, wherein the falling position of the cleaning ring 10 corresponds to the position of the receiving ring 2.
When the multistage controllable magnetic anti-sticking device is used, it should be noted that the multistage controllable magnetic anti-sticking device of the present invention includes components that are all universal standard components or components known to those skilled in the art, and the structure and principle of the multistage controllable magnetic anti-sticking device can be known to those skilled in the art through technical manuals or through routine experimental methods.
The iron scrap removing device is used in the moving process of a pump rod, iron scrap is easily generated, the electromagnetic coil 16 is started to enable the first-level magnetic anti-sticking device 6, the second magnetic anti-sticking device 4 and the third-level magnetic anti-sticking device 3 to form magnetic adsorption, the iron scrap generated in the moving process of the pump rod is adsorbed, then the hydraulic rod 13 and the cleaning ring 10 are driven to descend through the hydraulic cylinder 12 (the electromagnetic coil 16 is closed at the same time), the lower scraper 9 and the cleaning flow pattern 18 of the cleaning ring 10 sequentially scrape the iron scrap of the third-level magnetic anti-sticking device 3, the second magnetic anti-sticking device 4 and the outer wall containing groove 5 of the first-level magnetic anti-sticking device 6, the iron scrap enters the containing ring 2 and the containing groove 8, the iron scrap is adsorbed in the containing groove 8, the external air suction pump is communicated with the cleaning pipe 21, the iron scrap in the containing groove 8 is sequentially drawn out of the cleaning pipe 21 through the hole body, the air cavity 19 and the connecting ring 20, the cleaning pipe 21 is completed, the hydraulic cylinder 12 drives the hydraulic rod 13 and the cleaning ring 10 to reset, and the electromagnetic coil 16 is started again.
While there have been shown and described what are at present considered to be the basic principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. Multistage controllable magnetism anti-sticking ware, including top connection (7), lower clutch (1), center tube (15) and outer tube (14), center tube (15) are installed to top connection (7) bottom, lower clutch (1) are installed to center tube (15) bottom, one-level magnetism anti-sticking ware (6), its characterized in that are installed at center tube (15) outer wall top: center tube (15) outer wall mid-mounting has second grade magnetism anti-sticking ware (4), tertiary magnetism anti-sticking ware (3) are installed to center tube (15) outer wall bottom, one-level magnetism anti-sticking ware (6) outer wall encircles and has seted up and hold groove (5), pneumatic cylinder (12) are all installed to top connection (7) bottom outer loop left and right sides, hydraulic cylinder (12) bottom are installed hydraulic stem (13), and the quantity of hydraulic stem (13) is two sets of, and is two sets of hydraulic stem (13) end corresponds and fixes mutually with clearance ring (10) outer wall, clearance line (18) have been seted up to clearance ring (10) inner wall, lower clutch (1) top outer loop fixed mounting has the circular ring form to accomodate ring (2), accomodate the groove (8) of accomodating of sunken form at ring (2) top, accomodate ring (2) outer wall and encircle and evenly seted up the gas pocket, gas pocket quantity is more than three groups and communicates and accomodate groove (8), the circular ring form air cavity (19) are installed to gas chamber outer wall (19), connect intercommunication ring (20) outer wall and hold (21).
2. The multi-stage controllable magnetic jam-prevention device of claim 1 wherein: the structure of the first-level magnetic anti-sticking device (6), the structure of the second-level magnetic anti-sticking device (4) and the structure of the third-level magnetic anti-sticking device (3) are the same.
3. The multi-stage controllable magnetic jam-prevention device of claim 1 wherein: the inner wall of the cleaning ring (10) corresponds to and is embedded and sleeved with the outer wall of the first magnetic anti-blocking device, and the inner wall of the cleaning pattern (18) corresponds to and is embedded and sleeved with the outer wall of the containing groove (5).
4. The multi-stage controllable magnetic jam preventer of claim 1, wherein: an electromagnetic coil (16) is installed in the central tube (15), and the outer wall of the electromagnetic coil (16) is attached to the inner walls of the first-stage magnetic anti-sticking device (6), the second-stage magnetic anti-sticking device (4) and the third-stage magnetic anti-sticking device (3).
5. The multi-stage controllable magnetic jam-prevention device of claim 1 wherein: outer wall nested has outer tube (14) between top connection (7) and lower clutch (1), outer tube (14) top inner wall laminating is in top connection (7) outer wall bottom, outer tube (14) bottom inner wall laminating is in lower clutch (1) outer wall top.
6. The multi-stage controllable magnetic jam-prevention device of claim 1 wherein: the lower scraper (9) of inward sloping form is seted up to clearance ring (10) bottom, the chamber (11) that holds of sunken form is seted up on clearance ring (10) top.
7. The multi-stage controllable magnetic jam-prevention device of claim 6 wherein: the position of the cleaning ring (10) corresponds to the position of the containing ring (2).
8. The multi-stage controllable magnetic jam-prevention device of claim 1 wherein: the middle parts of the upper joint (7), the central pipe (15) and the lower joint (1) are all provided with a hole body (17) which penetrates through the upper joint and the central pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110755931.2A CN113565461B (en) | 2021-07-05 | 2021-07-05 | Multistage controllable magnetic anti-sticking device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110755931.2A CN113565461B (en) | 2021-07-05 | 2021-07-05 | Multistage controllable magnetic anti-sticking device |
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| Publication Number | Publication Date |
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| CN113565461A CN113565461A (en) | 2021-10-29 |
| CN113565461B true CN113565461B (en) | 2023-01-24 |
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| CN202110755931.2A Active CN113565461B (en) | 2021-07-05 | 2021-07-05 | Multistage controllable magnetic anti-sticking device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114704220B (en) * | 2022-03-15 | 2023-07-18 | 西南石油大学 | Electromagnetic fisher for horizontal well |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6655462B1 (en) * | 1999-05-29 | 2003-12-02 | Sps-Afos International Limited | Magnetic well cleaning apparatus |
| US7753114B1 (en) * | 2008-05-01 | 2010-07-13 | Penisson Dennis J | Magnetic wellbore cleaning tool |
| CN201567996U (en) * | 2009-12-16 | 2010-09-01 | 中国石油天然气股份有限公司 | Magnetic anti-sticking device for deep well |
| CN212079251U (en) * | 2019-08-07 | 2020-12-04 | 东营市瑞丰石油技术发展有限责任公司 | Fisher and oil well cleaning device |
| CN112523713A (en) * | 2020-12-23 | 2021-03-19 | 宝鸡瑞林石油机电设备有限责任公司 | High-efficient strong magnetism overshot of preventing hindering |
-
2021
- 2021-07-05 CN CN202110755931.2A patent/CN113565461B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6655462B1 (en) * | 1999-05-29 | 2003-12-02 | Sps-Afos International Limited | Magnetic well cleaning apparatus |
| US7753114B1 (en) * | 2008-05-01 | 2010-07-13 | Penisson Dennis J | Magnetic wellbore cleaning tool |
| CN201567996U (en) * | 2009-12-16 | 2010-09-01 | 中国石油天然气股份有限公司 | Magnetic anti-sticking device for deep well |
| CN212079251U (en) * | 2019-08-07 | 2020-12-04 | 东营市瑞丰石油技术发展有限责任公司 | Fisher and oil well cleaning device |
| CN112523713A (en) * | 2020-12-23 | 2021-03-19 | 宝鸡瑞林石油机电设备有限责任公司 | High-efficient strong magnetism overshot of preventing hindering |
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| CN113565461A (en) | 2021-10-29 |
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