CN110836101A - Oil well fishing device - Google Patents
Oil well fishing device Download PDFInfo
- Publication number
- CN110836101A CN110836101A CN201911250711.3A CN201911250711A CN110836101A CN 110836101 A CN110836101 A CN 110836101A CN 201911250711 A CN201911250711 A CN 201911250711A CN 110836101 A CN110836101 A CN 110836101A
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- Prior art keywords
- fishing
- oil well
- electromagnetic
- control box
- control circuit
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- 239000003129 oil well Substances 0.000 title claims abstract description 37
- 230000001681 protective effect Effects 0.000 claims abstract description 29
- 230000005674 electromagnetic induction Effects 0.000 claims description 14
- 230000006698 induction Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000012212 insulator Substances 0.000 claims description 3
- 238000007790 scraping Methods 0.000 abstract description 4
- 230000003116 impacting effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000002146 bilateral effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Marine Sciences & Fisheries (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses an oil well fishing device, which comprises a supporting frame arranged at a well mouth, wherein a control box body is fixedly arranged on the supporting frame, a motor and a control circuit are respectively arranged in the control box body, the output end of the motor is connected with a cable, the bottom of the cable is connected with a fishing body, a hook-shaped fishing piece and an electromagnetic fishing piece are respectively arranged on the fishing body, the control circuit controls the electromagnetic fishing piece to be switched on or off, the oil well fishing device also comprises a protective sleeve which is movably arranged relative to the fishing body, and the protective sleeve moves up and down along the oil well through a driving assembly so as to expose or cover the. According to the invention, through designing the driving protection structure carried by the fishing equipment, the scraping and impacting of sundries on the pipe wall can be effectively avoided, the secondary falling is avoided, the fishing operation efficiency is improved, and the damage to oil well equipment is reduced.
Description
Technical Field
The invention relates to oil well junk fishing equipment, in particular to an oil well fishing device.
Background
In the oil gas development and production process, operating tools or sundries often fall into an oil well, the production of the oil well is easily stopped, and the oil well is even scrapped in severe cases, so that the junk needs to be salvaged by salvage equipment.
The existing salvage equipment generally adsorbs or hooks a falling body through a strong magnet or a hook-shaped object which is placed in a shaft, so that the falling body is salvaged to the ground, and the salvage purpose is realized. However, in the process of fishing operation, the existing fishing tool lacks protection for the object to be fished, and both the object to be fished and the fishing equipment are easy to scrape and rub the pipe wall, and are easy to drop again due to scraping and rubbing, so that not only can the collision to the oil well be avoided, but also the fishing efficiency can be reduced, and even the oil well equipment is damaged.
In summary, there is a need for a new fishing device with safer structure design and capable of effectively improving the operation efficiency.
Disclosure of Invention
The invention aims to solve the technical problem that the existing oil well fishing equipment lacks a safe and stable protection structure.
In order to solve the technical problems, the technical scheme adopted by the invention is to provide an oil well fishing device, which comprises a supporting frame arranged at a well mouth, wherein a control box body is fixedly arranged on the supporting frame, a motor and a control circuit for paying off and taking up are respectively arranged in the control box body, the output end of the motor downwards penetrates out of the control box body and is connected with a cable, a cable is arranged in the cable, the bottom of the cable is connected with a fishing body, the fishing body is controlled by the motor to move and lift in an oil well, the fishing body is respectively provided with a hook-shaped fishing piece and an electromagnetic fishing piece, the electromagnetic fishing piece is connected with the control circuit through the cable, the control circuit controls the electromagnetic fishing piece to be switched on or off, the oil well fishing device also comprises a protective sleeve which is movably arranged relative to the fishing body, and the protective sleeve moves up and down along, to reveal or cover the fishing body.
In the above scheme, the drive assembly including connect in the protective sheath with vice cable between the control box, be equipped with in the control box and be used for the unwrapping wire and receive the vice motor of line, the output of vice motor is worn to locate downwards outside the control box and connect in vice cable, be equipped with magnetic sensing element on the inside wall of protective sheath, magnetic sensing element orientation the electromagnetism is salvaged a layout, and along with switching on or breaking off of electromagnetism salvage, the electromagnetism is salvaged a absorption or is loosened magnetic sensing element.
In the above scheme, the two secondary cables are respectively arranged in bilateral symmetry.
In the above scheme, the control box body is provided with an auxiliary motor switch, and the auxiliary motor switch is connected with the control circuit through an electric wire.
In the above scheme, the drive assembly includes vertical arrangement in the slide on the electromagnetism is salvaged the piece, the upper and lower both ends of slide are equipped with an electromagnetic induction component respectively, the electromagnetic induction component passes through cable junction in control circuit, be equipped with the magnetic sensing component on the inside wall of protective sheath, the embedded and sliding connection in of magnetic sensing component in the slide, be equipped with inductive switch on the control box, inductive switch with control circuit passes through the connection of electric lines, control circuit controls respectively the electromagnetic induction component opens and close, and makes the magnetic sensing component drives the protective sheath orientation arbitrary one the vertical migration of electromagnetic induction component.
In the above scheme, the magnetic sensing element is made of steel, and the electromagnetic induction element is an electromagnet.
In the above scheme, the control box body is respectively provided with an electromagnetic switch and a motor switch, and the electromagnetic switch and the motor switch are respectively connected with the control circuit through electric wires.
In the scheme, the electromagnetic fishing piece is an electromagnet.
In the above scheme, the protective sleeve is in a straight cylinder shape or a stepped cylinder shape with a small upper part and a large lower part matched with the shape of the fishing body.
In the above scheme, the protective sleeve is an insulator and is an absolute magnet.
According to the invention, through designing the driving protection structure carried by the fishing equipment, the scraping and impacting of sundries on the pipe wall can be effectively avoided, the secondary falling is avoided, the fishing operation efficiency is improved, and the damage to oil well equipment is reduced.
Drawings
FIG. 1 is a schematic external view of a first embodiment of the present invention;
FIG. 2 is a perspective view of the internal structure of FIG. 1;
FIG. 3 is a usage state change diagram of the first embodiment of the present invention;
FIG. 4 is a schematic external view of a second embodiment of the present invention;
FIG. 5 is a perspective view of the internal structure of FIG. 4;
fig. 6 is a diagram illustrating a change in the usage state of the second embodiment of the present invention.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings.
The invention discloses an oil well fishing device, which can be realized by appropriately improving process parameters by a person skilled in the art by referring to the content in the text. It is expressly intended that all such alterations and modifications which are obvious to those skilled in the art are deemed to be incorporated herein by reference, and that the techniques of the invention may be practiced and applied by those skilled in the art without departing from the spirit, scope and range of equivalents of the invention.
In the present invention, unless otherwise defined, scientific and technical terms used herein have the meanings that are commonly understood by those skilled in the art.
As shown in fig. 1 to 6, the oil well fishing device provided by the invention comprises a support frame 1 arranged at a well mouth, wherein a control box body 2 is fixedly arranged on the support frame 1, a motor and a control circuit for paying off and taking up are respectively arranged in the control box body 2, the output end of the motor is downwards penetrated outside the control box body 2 and is sequentially connected with a cable 3 and a fishing body 4, a motor switch is arranged on the control box body 2, the motor switch is connected with the control circuit through an electric wire, when in use, the motor is driven by the control circuit to operate to drive the cable 3 to stretch, so that the fishing body 4 is moved and lifted in an oil well to fish fallen objects, control buttons of all corresponding parts are arranged on the control box body 2, and all the control buttons are connected with the control circuit through electric wires to achieve the purpose.
In the invention, because the motor and the electric wire are relatively conventional connecting elements, and the installation, penetration and layout modes of the electric wire among all parts are relatively simple and common, the electric wire is not taken as a core innovation point of the invention, and only by means of related technologies, so that the connection diagram of the lead group and the schematic diagram of the motor among all parts are omitted in the drawing in order to avoid confusion caused by circuit diagram.
Further, hawser 3 embeds has the cable, salvage and be equipped with hook-shaped salvage 5 and electromagnetism salvage 6 respectively protrudingly on the body 4, electromagnetism salvage 6 is the electro-magnet, hook-shaped salvage 5 and electromagnetism salvage 6 are comparatively ripe prior art, both can the exclusive use, also can use multipurposely, consequently can realize salvage the function with the help of adopting the correlation technique in a flexible way, wherein, electromagnetism salvage 6 and pass through cable junction in control circuit, be equipped with electromagnetic switch on the control box 2, electromagnetic switch passes through electric wire connection with control circuit, can operate control circuit like this and control the switching on or the disconnection of electromagnetism salvage 6 and be used for adsorbing the junk.
In addition, the invention also comprises a protective sleeve 7 which is arranged in a way of moving relative to the fishing body 4, wherein the material of the protective sleeve 7 is preferably an insulator and a dead magnet body, the shape can be a straight cylinder (with larger volume) or a step cylinder (with small space) which is matched with the shape of the fishing body 4 and has a small upper part and a large lower part, and the protective sleeve 7 can be selected according to the actual situation and is arranged between the fishing body 4 and the inner wall of the oil well, so the maximum outer diameter of the protective sleeve 7 is smaller than the inner diameter of the oil well and larger than the outer diameter of the fishing body 4, therefore, the protective sleeve 7 can move up and down along the direction of the oil well under the driving of the driving component to expose or cover the fishing body 4, for example, the protective sleeve 7 can expose the fishing body 4 during the fishing operation at the bottom of the well, thus the fishing operation can not be obstructed, when the fishing body 4 is lifted up, play the guard action, can also avoid falling the thing and drop once more because of the collision.
The driving structure of the invention is divided into the following two implementation modes:
example 1
As shown in fig. 1 to 3, the first driving structure specifically includes two secondary cables 8 connected between the protective sheath 7 and the control box 2, the two secondary cables 8 are respectively arranged in bilateral symmetry to keep the balance of forces applied when the protective sheath 7 is pulled by the secondary cables 8, a secondary motor for paying off and taking up wires is arranged in the control box 2, an output end of the secondary motor penetrates out of the control box 2, and then is connected to the secondary cable 8 to realize the transmission and output of the lifting power, a secondary motor switch is arranged on the control box 2, and the secondary motor switch is connected to the control circuit through an electric wire, so that manual control can be realized, thereby the protective sheath 7 can be driven to lift in the arrow direction in the figure along with the forward and reverse operation of the secondary motor, in this embodiment, as a further preferable design, a magnetic sensing element 9 can be fixedly embedded on the inner side wall of the protective sheath 7, and the magnetic sensing element 9 can be made of steel, and the magnetic sensing element 9 is arranged towards the direction of the electromagnetic fishing piece 6 inwards, so that the electromagnetic fishing piece 6 can automatically adsorb a main magnetic sensor or loosen the magnetic sensing element 9 along with the connection or disconnection of the electromagnetic fishing piece 6, the design has the advantages that the shaking and dislocation between the protective sleeve 7 and the fishing body 4 in the lifting process can be avoided, and the possibility of rubbing and secondary falling of an oil pipe is also avoided.
Example 2
As shown in fig. 4 to 6, the second driving structure specifically includes a slide way 10 vertically provided on the electromagnetic fishing component 6, an electromagnetic induction element is preferably embedded in each of the upper and lower ends of the slide way 10, the electromagnetic induction element is preferably an electromagnet, the electromagnetic induction element is connected to the control circuit through a cable, a magnetic sensing element 9 is fixedly embedded on the inner side wall of the protective sleeve 7, the magnetic sensing element 9 is preferably made of steel, the magnetic sensing element 9 is designed in a slider shape that is embedded in the slide way 10 and can vertically slide along the slide way 10, the control box 2 is provided with an induction switch, the induction switch is connected with the control circuit through a wire, and the control circuit controls the electromagnetic induction element to open and close, so that the required electromagnetic induction element generates magnetic force to attract and drives the magnetic sensing element 9 to move up and down to two high and low limit positions and then firmly attract, and thus along the arrow direction in the figure, the magnetic sensing element 9 can drive the protective sleeve 7 to vertically move towards any one electromagnetic sensing element, compared with the first embodiment, the design saves the use of an auxiliary motor, and the lifting can be driven by utilizing the electromagnetic property of the fishing body 4.
According to the invention, through designing the driving protection structure carried by the fishing equipment, the scraping and impacting of sundries on the pipe wall can be effectively avoided, the secondary falling is avoided, the fishing operation efficiency is improved, and the damage to oil well equipment is reduced.
The present invention is not limited to the above-mentioned preferred embodiments, and any structural changes made under the teaching of the present invention shall fall within the protection scope of the present invention, which has the same or similar technical solutions as the present invention.
Claims (10)
1. An oil well fishing device is characterized by comprising a support frame arranged at a well mouth, a control box body is fixedly arranged on the support frame, a motor and a control circuit for paying off and taking up are respectively arranged in the control box body, the output end of the motor downwards penetrates through the control box body and is connected with a cable, a cable is arranged in the mooring rope, the bottom of the mooring rope is connected with a salvaging body, the salvaging body is controlled by the motor to move and lift in the oil well, the fishing body is respectively provided with a hook-shaped fishing piece and an electromagnetic fishing piece, the electromagnetic fishing piece is connected with the control circuit through the cable, the control circuit controls the electromagnetic fishing piece to be switched on or off, and also comprises a protective sleeve which is arranged in a way of relatively moving with the fishing body, the protective sleeve moves up and down along the oil well through the driving assembly so as to expose or cover the fishing body.
2. The oil well fishing device according to claim 1, wherein the driving assembly comprises a secondary cable connected between the protection sleeve and the control box, a secondary motor for paying off and taking up is arranged in the control box, an output end of the secondary motor penetrates downwards out of the control box and is connected to the secondary cable, a magnetic sensing element is arranged on an inner side wall of the protection sleeve, the magnetic sensing element faces towards the electromagnetic fishing piece, and the electromagnetic fishing piece adsorbs or loosens the magnetic sensing element along with the connection or disconnection of the electromagnetic fishing piece.
3. An oil well fishing device according to claim 2, wherein the two auxiliary cables are arranged symmetrically left and right respectively.
4. An oil well fishing device according to claim 2, wherein the control box is provided with a secondary motor switch, and the secondary motor switch is connected with the control circuit through a wire.
5. The oil well fishing device according to claim 1, wherein the driving assembly comprises a slideway vertically arranged on the electromagnetic fishing member, the upper end and the lower end of the slideway are respectively provided with an electromagnetic induction element, the electromagnetic induction elements are connected to the control circuit through the cable, the inner side wall of the protective sleeve is provided with a magnetic induction element, the magnetic induction element is embedded and slidably connected to the slideway, the control box body is provided with an induction switch, the induction switch is connected with the control circuit through a wire, and the control circuit respectively controls the electromagnetic induction elements to be opened and closed and enables the magnetic induction elements to drive the protective sleeve to vertically move towards any one of the electromagnetic induction elements.
6. An oil well fishing device according to claim 5, wherein the magnetic sensing element is made of steel and the electromagnetic sensing element is an electromagnet.
7. An oil well fishing device according to claim 1, wherein the control box body is provided with an electromagnetic switch and a motor switch respectively, and the electromagnetic switch and the motor switch are respectively connected with the control circuit through electric wires.
8. An oil well fishing apparatus as claimed in claim 1, wherein the electromagnetic fishing member is an electromagnet.
9. An oil well fishing device according to claim 1, wherein the protective sleeve is in the shape of a straight cylinder or a stepped cylinder with a small upper part and a large lower part which is matched with the external shape of the fishing body.
10. An oil well fishing apparatus as claimed in claim 1, wherein said protective sleeve is an insulator and is a permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911250711.3A CN110836101B (en) | 2019-12-09 | 2019-12-09 | Oil well fishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911250711.3A CN110836101B (en) | 2019-12-09 | 2019-12-09 | Oil well fishing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110836101A true CN110836101A (en) | 2020-02-25 |
| CN110836101B CN110836101B (en) | 2024-05-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911250711.3A Active CN110836101B (en) | 2019-12-09 | 2019-12-09 | Oil well fishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110836101B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577190A (en) * | 2020-04-23 | 2020-08-25 | 王水波 | Oil well foreign matter active protection type fishing equipment |
| WO2021257691A3 (en) * | 2020-06-17 | 2022-01-20 | Saudi Arabian Oil Company | Electromagnetic wellbore clean out tool |
| NL2030627A (en) * | 2022-01-20 | 2022-07-13 | Univ Southwest Petroleum | Intelligent electromagnetic fishing device for horizontal wells |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU581240A1 (en) * | 1974-01-15 | 1977-11-25 | Всесоюзный научно-исследовательский институт разработки и эксплуатации нефтепромысловых труб | Device for retrieving broken wire-hose line from borehole |
| US4856582A (en) * | 1988-07-20 | 1989-08-15 | Atlantic Richfield Company | Motorized wellbore fishing tool |
| US20070102161A1 (en) * | 2005-09-09 | 2007-05-10 | Gazewood Michael J | Magnetic fishing tool and method |
| RU94219U1 (en) * | 2010-03-15 | 2010-05-20 | Общество с ограниченной ответственностью "Научно-производственное предприятие "ЭГО" | DEVICE FOR DETERMINING THE LENGTH AND ANGLE OF THE TILES OF THE TELESCOPIC ARROW OF THE LOADING MACHINE |
| CN103573204A (en) * | 2013-10-24 | 2014-02-12 | 中国石油化工股份有限公司 | Fallen steel wire fisher passing through tapered string |
| CN104612618A (en) * | 2015-01-26 | 2015-05-13 | 成都科盛石油科技有限公司 | Oil well fisher |
| CN204960856U (en) * | 2015-09-01 | 2016-01-13 | 中国石油集团长城钻探工程有限公司 | Strong magnetism fisher of triaxial |
| CN105370232A (en) * | 2015-12-17 | 2016-03-02 | 李刚 | Fallen rope fishing device |
| US20160115757A1 (en) * | 2014-10-23 | 2016-04-28 | Beijing Hailan Science & Technology Development Co., Ltd. | Petroleum instrument salvaging system and salvaging head |
| CN107152255A (en) * | 2017-06-30 | 2017-09-12 | 四川达灿石油设备有限公司 | The pneumatic oil well of drawing and pulling type salvages structure |
| CN207332800U (en) * | 2017-09-25 | 2018-05-08 | 中国石油天然气股份有限公司 | Oil well fishing device |
| CN207538808U (en) * | 2017-11-27 | 2018-06-26 | 中国石油化工股份有限公司 | A kind of universality obtains the device of all kinds of junks in oil well shaft bottom |
| CN208885225U (en) * | 2018-09-30 | 2019-05-21 | 东营天锦石油科技开发有限公司 | A kind of oil field well falling object fishing tool |
| CN211115885U (en) * | 2019-12-09 | 2020-07-28 | 中油（天津）国际石油勘探开发技术有限公司 | Oil well fishing device |
-
2019
- 2019-12-09 CN CN201911250711.3A patent/CN110836101B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU581240A1 (en) * | 1974-01-15 | 1977-11-25 | Всесоюзный научно-исследовательский институт разработки и эксплуатации нефтепромысловых труб | Device for retrieving broken wire-hose line from borehole |
| US4856582A (en) * | 1988-07-20 | 1989-08-15 | Atlantic Richfield Company | Motorized wellbore fishing tool |
| US20070102161A1 (en) * | 2005-09-09 | 2007-05-10 | Gazewood Michael J | Magnetic fishing tool and method |
| RU94219U1 (en) * | 2010-03-15 | 2010-05-20 | Общество с ограниченной ответственностью "Научно-производственное предприятие "ЭГО" | DEVICE FOR DETERMINING THE LENGTH AND ANGLE OF THE TILES OF THE TELESCOPIC ARROW OF THE LOADING MACHINE |
| CN103573204A (en) * | 2013-10-24 | 2014-02-12 | 中国石油化工股份有限公司 | Fallen steel wire fisher passing through tapered string |
| US20160115757A1 (en) * | 2014-10-23 | 2016-04-28 | Beijing Hailan Science & Technology Development Co., Ltd. | Petroleum instrument salvaging system and salvaging head |
| CN104612618A (en) * | 2015-01-26 | 2015-05-13 | 成都科盛石油科技有限公司 | Oil well fisher |
| CN204960856U (en) * | 2015-09-01 | 2016-01-13 | 中国石油集团长城钻探工程有限公司 | Strong magnetism fisher of triaxial |
| CN105370232A (en) * | 2015-12-17 | 2016-03-02 | 李刚 | Fallen rope fishing device |
| CN107152255A (en) * | 2017-06-30 | 2017-09-12 | 四川达灿石油设备有限公司 | The pneumatic oil well of drawing and pulling type salvages structure |
| CN207332800U (en) * | 2017-09-25 | 2018-05-08 | 中国石油天然气股份有限公司 | Oil well fishing device |
| CN207538808U (en) * | 2017-11-27 | 2018-06-26 | 中国石油化工股份有限公司 | A kind of universality obtains the device of all kinds of junks in oil well shaft bottom |
| CN208885225U (en) * | 2018-09-30 | 2019-05-21 | 东营天锦石油科技开发有限公司 | A kind of oil field well falling object fishing tool |
| CN211115885U (en) * | 2019-12-09 | 2020-07-28 | 中油（天津）国际石油勘探开发技术有限公司 | Oil well fishing device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577190A (en) * | 2020-04-23 | 2020-08-25 | 王水波 | Oil well foreign matter active protection type fishing equipment |
| WO2021257691A3 (en) * | 2020-06-17 | 2022-01-20 | Saudi Arabian Oil Company | Electromagnetic wellbore clean out tool |
| US11236585B2 (en) | 2020-06-17 | 2022-02-01 | Saudi Arabian Oil Company | Electromagnetic wellbore clean out tool |
| NL2030627A (en) * | 2022-01-20 | 2022-07-13 | Univ Southwest Petroleum | Intelligent electromagnetic fishing device for horizontal wells |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110836101B (en) | 2024-05-07 |
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Effective date of registration: 20201202 Address after: 300457 Tianjin Binhai New Area Development Zone Second Avenue 35 Ginza building 401 room Applicant after: CNPC (TIANJIN) INTERNATIONAL PETROLEUM EXPLORATION AND DEVELOPMENT TECHNOLOGY Co.,Ltd. Applicant after: PetroChina Company Limited Address before: 300457 Tianjin Binhai New Area Development Zone Second Avenue 35 Ginza building 401 room Applicant before: CNPC (TIANJIN) INTERNATIONAL PETROLEUM EXPLORATION AND DEVELOPMENT TECHNOLOGY Co.,Ltd. Applicant before: DAGANG OIL FIELD OF CNPC |
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