CN112780209B - Magnetic fishing device for fishing small-falling objects in petroleum well - Google Patents
Magnetic fishing device for fishing small-falling objects in petroleum well Download PDFInfo
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- CN112780209B CN112780209B CN202110011180.3A CN202110011180A CN112780209B CN 112780209 B CN112780209 B CN 112780209B CN 202110011180 A CN202110011180 A CN 202110011180A CN 112780209 B CN112780209 B CN 112780209B
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- swing
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- 239000003208 petroleum Substances 0.000 title abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000003129 oil well Substances 0.000 claims abstract description 21
- 238000003801 milling Methods 0.000 claims abstract description 18
- 229910052742 iron Inorganic materials 0.000 claims abstract description 13
- 230000005389 magnetism Effects 0.000 claims description 5
- 239000012634 fragment Substances 0.000 abstract description 11
- 230000001788 irregular Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 18
- 239000003921 oil Substances 0.000 description 18
- 235000019198 oils Nutrition 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 210000003608 fece Anatomy 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 208000037170 Delayed Emergence from Anesthesia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000021323 fish oil Nutrition 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000005096 rolling process Methods 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
-
- 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
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- 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)
Abstract
The invention discloses a magnetic fishing device for fishing small-sized falling objects in an oil well, which relates to the technical field of oil underground operation tools and comprises an upper joint, a shell, milling shoes and fishing equipment, wherein outer hook rods are symmetrically arranged on the outer circumference of a magnetic suction piece, hook grooves are uniformly formed in the inner sides of the outer hook rods, a plurality of plate hooks are symmetrically arranged on the outer walls of two sides of a magnetic sleeve, and arc-shaped grooves are formed in the swinging strip. According to the invention, through the arrangement of the swinging strip, the irregular arc-shaped groove in the swinging strip drives the magnetic core iron at the tail part to swing to magnetically attract surrounding small fragments, so that the efficiency and the quality of petroleum underground operation are ensured, through the arrangement of the rotating ball, balance can be kept when falling objects tilt or move due to friction, so that the falling objects are ensured not to fall easily, through the arrangement of the rotatable outer hook rod and the plate hook, the magnetic attraction piece can be pulled upwards and the outer hook rod can be rotated at the same time, the rope is clamped between the hook groove of the outer hook rod and the plate hook, and the rope falling objects are ensured not to fall easily again.
Description
Technical Field
The invention relates to a fishing device, relates to the technical field of petroleum underground operation tools, and particularly relates to a magnetic fishing device for fishing small-sized falling objects in a petroleum well.
Background
The underground operation is a technical means for guaranteeing normal production of an oil-water well in the process of exploration and development of an oil field, in the process of underground operation of the oil field, small objects can fall into the well, for small strip, sheet and granular metals (such as drilling and grinding residual blocks, perforation fragments, screws, pins, rubber barrel fragments, steel wire ropes and the like) with small volumes, a strong magnetic fisher is generally adopted for fishing, a magnetic fishing device is a tool for fishing the small iron falling objects by utilizing the magnetic suction force of a magnet and is mainly used for fishing the small iron falling objects such as drill cones, slip teeth, tong teeth, steel balls, manual tools, oil pipes or casing fragments and the like, and the bottom of the magnetic fisher can also be connected with milling shoes or guide shoes according to the needs of fishing operation. The following problems exist in the prior art:
1. in the prior art, when a strong magnetic fishing device is used for fishing small fallen objects underground in the underground petroleum process, the oil pipe and the rope-shaped objects are in an inclined state in the pulling-up process and easily slide down when touching two sides in the pulling-up process because the small fallen objects (such as short oil pipes, steel wire ropes and the like) fall into the underground petroleum oil, so that the problems of difficult pulling-out and easy sliding are solved, and some small broken pieces around are not easily adsorbed;
2. among the prior art, can have to some rope form small-sized droppings and be difficult to hold in oil, consequently the problem that drops extremely easily in the pit, and then reach the use original intention of coming on the quick accurate salvage of rope form droppings, this fishing device's suitability worsens, consequently needs carry out the structure innovation and solves specific problem.
Disclosure of Invention
The invention provides a magnetic fishing device for fishing small-sized objects in petroleum wells, which aims to have the beneficial effect of fishing small fragments near the magnetic fishing device and solve the problem that the small fragments in the wells are difficult to fish; when the small-sized falling object falls into oil in the oil well, the oil pipe and the rope-shaped object can be in an inclined state in the pulling-up process, so that the problem that the small-sized falling object is not easy to pull out and easily falls off is solved, the falling object and two sides rub to the effect that the small-sized falling object does not easily fall off after being adsorbed, and the rope-shaped object is conveniently and firmly salvaged and not easily falls off when the magnetic fishing device is used for salvaging the rope-shaped falling object.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a magnetism fishing device of small junk is salvaged in oil well, includes top connection, casing, milling shoe and fishing equipment, the bottom of top connection and the top swing joint of casing, the inner wall of casing and the outer wall fixed connection of milling shoe, the bottom of milling shoe and the top swing joint of fishing equipment, logical groove has been seted up to the inside of milling shoe, fishing equipment includes salvage and stay cord, the bottom of stay cord and the top fixed connection of salvage.
The technical scheme of the invention is further improved as follows: the fishing tool comprises a fishing part and a fishing rod, wherein the fishing part comprises an outer hook rod and a magnetic attraction part, the outer wall of the outer hook rod is in sliding connection with the inner wall of a milling shoe, the outer hook rod is in sliding connection with the inner wall of a shell, the top of the outer hook rod is fixedly connected with the bottom of an upper joint, the outer circumference of the magnetic attraction part is symmetrically provided with the outer hook rod, and hook grooves are evenly formed in the inner side of the outer hook rod.
The technical scheme of the invention is further improved as follows: the piece is inhaled to magnetism includes strong magnet, board hook, swing and magnetic sleeve, the inside fixedly connected with strong magnet of magnetic sleeve, the both sides bottom of magnetic sleeve is provided with the swing piece, the swing piece is including swing strip and magnetic core iron, the both sides outer wall symmetry of magnetic sleeve is provided with a plurality of board hook.
The technical scheme of the invention is further improved as follows: the top of the magnetic sleeve is rotatably connected with a rotating ball, two sides of the rotating ball are movably connected with sliding rods, two ends of each sliding rod are slidably connected with the inner wall of the corresponding through groove, and two sides of the bottom end of each through groove are rotatably connected with rebound nets.
The technical scheme of the invention is further improved as follows: the bottom of the swing strip is fixedly connected with a magnetic core iron, and an arc-shaped groove is formed in the swing strip.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:
1. the invention provides a magnetic fishing device for fishing small-sized falling objects in an oil well, which is ingenious in design, and adopts the combination of a strong magnet in a magnetic sleeve and a magnetic core iron of a swinging piece, the swinging piece at the bottom ends of two sides of the magnetic sleeve is acted by the upward force of oil in the oil well when the device sinks, oil enters the swinging piece, an arc-shaped groove in an irregular arc shape is formed in the swinging piece, and the oil flows irregularly in the swinging piece after entering, so that the swinging piece can swing irregularly in all directions, the magnetic core iron at the tail part is driven to swing to magnetically attract surrounding small fragments, the fishing efficiency is higher, and the efficiency and the quality of the oil well operation are ensured.
2. The invention provides a magnetic fishing device for fishing small fallen objects in an oil well, which can realize that the fallen objects are easy to fall off due to the friction of the fallen objects in the underground environment in the process of being pulled up after being adsorbed in the process of fishing in the oil well by arranging a rotating ball, the rotating ball at the top of a magnetic sleeve can realize rotation, can keep balance when the fallen objects incline or move due to friction, and ensures that the fallen objects are not easy to fall off and the success rate of being fished at one time.
3. The invention provides a magnetic fishing device for fishing small fallen objects in an oil well, which is characterized in that a plurality of plate hooks uniformly arranged on the outer walls at two ends of a magnetic sleeve can be used for fishing rope-shaped fallen objects in the fishing process of oil well operation through the combination of a hook groove formed in the inner side of an outer hook rod and plate hooks on the outer wall of the magnetic sleeve, when a rope is hooked on the plate hooks, a magnetic attraction piece is pulled upwards and the outer hook rod is rotated at the same time, a rope is clamped between the hook groove of the outer hook rod and the plate hooks, the rope-shaped fallen objects are ensured not to fall again easily, and the magnetic fishing device can effectively fish oil pipes, fragments and rope-shaped fallen objects in the underground operation process, so that the fishing quality and the success rate of one-time successful fishing are improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front cross-sectional view of the present invention;
FIG. 3 is a cross-sectional view of the fishing element of the present invention;
FIG. 4 is an enlarged detail view taken at A in FIG. 3 according to the present invention;
fig. 5 is an enlarged view of the detail B in fig. 3 according to the present invention.
In the figure: 1. an upper joint; 2. a housing; 3. milling a shoe; 4. salvaging the equipment; 31. a through groove; 41. fishing the parts; 42. pulling a rope; 411. an outer hook rod; 412. a magnetic member; 311. a resilient net; a1, hook slot; b1, strong magnet; b2, plate hook; b3, a swinging piece; b4, a rolling ball; b5, a magnetic sleeve; b6, a sliding rod; c1, a swing bar; c2, arc-shaped groove; c3, magnetic core iron.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
example 1
As shown in fig. 1-3, the invention provides a magnetic fishing device for fishing small-sized falling objects in an oil well, which comprises an upper connector 1 and a shell 2, milling shoe 3 and fishing equipment 4, the bottom of top connection 1 and the top swing joint of casing 2, the inner wall of casing 2 and the outer wall fixed connection of milling shoe 3, the bottom of milling shoe 3 and the top swing joint of fishing equipment 4, logical groove 31 has been seted up to the inside of milling shoe 3, fishing equipment 4 includes salvage 41 and stay cord 42, the bottom of stay cord 42 and the top fixed connection of salvage 41, salvage 41 includes outer hook rod 411 and magnetism piece 412, the outer wall of outer hook rod 411 and the inner wall sliding connection of milling shoe 3, outer hook rod 411 and the inner wall sliding connection of casing 2, the top of outer hook rod 411 and the bottom fixed connection of top connection 1, the outer circumference symmetry of magnetism piece 412 is provided with outer hook rod 411, the inboard of outer hook rod 411 evenly is provided with hook groove a 1.
In this embodiment, the top connection 1 can rotate at the top of the housing 2, the top connection 1 is provided with a tether, the tether is used for an operator to pull the magnetic fishing device, the pull rope 42 is connected with the through groove 31 in a sliding manner, the bottom of the pull rope 42 is fixedly connected with the fishing piece 41, the pull rope 42 can pull the magnetic attraction piece 412 to slide up and down, the bottom of the top connection 1 is connected with the outer hook rod 411, the outer hook rod 411 can rotate around the axis and slide up and down by the top connection 1, the inner side of the outer hook rod 411 is provided with a plurality of downward hook grooves a1, when hooking up the rope-shaped falling object, the hook grooves a1 can clamp the rope-shaped falling object in the hook grooves a1 and can be matched with the plate hooks b2 to clamp the rope-shaped falling object, the small falling object is avoided from dropping again, the success rate of fishing the falling object in the oil-well operation is improved, and the work efficiency is improved.
Example 2
As shown in fig. 3 to 5, on the basis of embodiment 1, the present invention provides a technical solution: the magnetic attraction piece 412 comprises a strong magnet b1, a plate hook b2, a swinging piece b3 and a magnetic sleeve b5, the inside of the magnetic sleeve b5 is fixedly connected with a strong magnet b1, the bottom ends of two sides of the magnetic sleeve b5 are provided with a swinging piece b3, the swinging piece b3 comprises a swinging strip c1 and a magnetic core c3, the outer walls of two sides of the magnetic sleeve b5 are symmetrically provided with a plurality of plate hooks b2, the top of the magnetic sleeve b5 is rotatably connected with a rotating ball b4, two sides of the rotating ball b4 are movably connected with a sliding rod b6, two ends of the sliding rod b6 are slidably connected with the inner wall of the through groove 31, two sides of the bottom end of the through groove 31 are rotatably connected with a rebound net 311, the bottom of the swinging strip c1 is fixedly connected with a magnetic core iron c3, and an arc-shaped groove c2 is formed inside the swinging strip c 1.
In this embodiment, the strong magnet b1 inside the magnetic sleeve b5 is a magnet with strong magnetic attraction, which plays a role of absorbing and salvaging small-sized falling objects when working in an oil well, the bottom ends of the two sides of the magnetic sleeve b5 are respectively provided with a symmetrical swinging piece b3, the swinging piece b3 is composed of a plurality of swinging strips c1, an irregular arc-shaped groove c2 is arranged inside the swinging strip c1, during the descending process of the magnetic salvaging device, oil or water enters the arc-shaped groove c2 under the upward action of oil and water in the oil well, force in different directions is generated on the swinging strip c1 to push the swinging strip 1 to swing, the magnetic core iron c3 at the tail part of the swinging strip c1 absorbs small fragments around the magnetic sleeve b5 along with the irregular swinging of the swinging strip c1, the underground salvaging efficiency is improved, when the bottom of the magnetic sleeve b5 absorbs the falling objects, the bottom of the magnetic sleeve b5 has a smaller contact area with the falling objects, in the underground environment, the falling objects are easy to fall off by friction in the process of being pulled up, the rotating ball b4 at the top of the magnetic sleeve b5 can keep balance when the falling objects incline or move by friction, the falling objects are prevented from falling off easily, the success rate of fishing the falling objects at one time is ensured, meanwhile, a plurality of plate hooks b2 uniformly arranged on the outer walls of the two ends of the magnetic sleeve b5 can salvage rope-shaped falling objects in the process of fishing the underground oil well, when the rope is hooked on the plate hooks b2, the rebounding nets 311 at the two sides of the bottom end of the through groove 31 can prevent large impurities in the oil well from entering the through groove 31 to cause blockage, the magnetic attraction piece 412 is pulled up and the outer hook rod 411 is rotated at the same time, the rope is clamped between the hook groove a1 of the outer hook rod 411 and the plate hook b2, the rope falling objects are prevented from falling off again easily, and the magnetic device is used in the process of the underground operation, the fishing tool can effectively salvage oil pipes, fragments and rope-shaped falling objects, and improves the quality of salvage and the success rate of one-time salvage success.
The working principle of the magnetic fishing device for fishing the small-sized falling objects in the petroleum well is described in detail below.
As shown in fig. 1-5, in the using process, a rope is tied on the upper connector 1, another rope is tied on the top of the pull rope 42, the whole magnetic fishing device is put into the well for fishing, the pull rope 42 is firstly lengthened, the length of the rope is longer than that of the rope of the upper connector 1, at this time, the fishing part 41 sinks wholly, wherein the magnetic attraction part 412 has a faster sinking speed than that of the outer hook rod 411, because the magnetic attraction part 412 is continuously sunk and is acted by the upward force of oil in the oil well, water and oil enter the swing strip c1 of the swing part b3, the swing strip c1 is internally provided with an irregular arc-shaped groove c2, the oil in the oil well flows irregularly in the swing strip c1, so that the swing part b3 can swing irregularly in all directions, the tail part of the swing strip c1 is provided with a magnetic core iron c3, small fragments around the magnetic sleeve b5 can be magnetically attracted in the swinging process, the fishing efficiency is higher, the efficiency and the quality of the oil downhole operation are ensured, the inside of the magnetic sleeve b5 is provided with a strong magnet b1 with strong magnetic force, when falling objects are adsorbed at the bottom of the magnetic sleeve b5, because the contact area between the bottom of the magnetic sleeve b5 and the falling object is small, and because the falling object in the underground environment can be rubbed to the surrounding and easily fall off in the process of being pulled up, the rotating ball b4 at the top of the magnetic sleeve b5 can keep balance when the falling object inclines or is rubbed to move, the success rate of fishing the falling object at one time is ensured, meanwhile, the plate hooks b2 evenly arranged on the outer walls of the two ends of the magnetic sleeve b5 can salvage rope-shaped falling objects in the process of fishing in the oil well, when the rope is hooked on the plate hook b2, the magnetic attraction piece 412 is pulled up and the outer hook rod 411 is rotated at the same time, the rope is caught between the hook groove a1 of the outer hook rod 411 and the plate hook b2, and it is ensured that the rope fall is not easy to fall again.
The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the invention without departing from the spirit of the inventive concept.
Claims (3)
1. The utility model provides a magnetism fishing device of small-size junk is salvaged in oil pit, includes top connection (1), casing (2), milling shoe (3) and fishing equipment (4), its characterized in that: the bottom of the upper connector (1) is movably connected with the top of the shell (2), the inner wall of the shell (2) is fixedly connected with the outer wall of the milling shoe (3), the bottom of the milling shoe (3) is movably connected with the top of the fishing device (4), a through groove (31) is formed in the milling shoe (3), the fishing device (4) comprises a fishing piece (41) and a pull rope (42), and the bottom of the pull rope (42) is fixedly connected with the top of the fishing piece (41);
the fishing part (41) comprises an outer hook rod (411) and a magnetic sucking part (412), the outer wall of the outer hook rod (411) is in sliding connection with the inner wall of the milling shoe (3), the outer hook rod (411) is in sliding connection with the inner wall of the shell (2), the top of the outer hook rod (411) is fixedly connected with the bottom of the upper connector (1), the outer hook rod (411) is symmetrically arranged on the outer circumference of the magnetic sucking part (412), and hook grooves (a 1) are uniformly formed in the inner side of the outer hook rod (411);
magnetic attraction piece (412) include strong magnet (b 1), board hook (b 2), swing piece (b 3) and magnetic sleeve (b 5), the inside fixedly connected with strong magnet (b 1) of magnetic sleeve (b 5), the both sides bottom of magnetic sleeve (b 5) is provided with swing piece (b 3), swing piece (b 3) is including swing strip (c 1) and magnetic core iron (c 3), the both sides outer wall symmetry of magnetic sleeve (b 5) is provided with a plurality of board hook (b 2).
2. The magnetic fishing device for fishing the small junk in the oil well according to the claim 1, characterized in that: the top of magnetic sleeve (b 5) is rotated and is connected with swivel ball (b 4), the both sides swing joint of swivel ball (b 4) has slide bar (b 6), the both ends of slide bar (b 6) and the inner wall sliding connection who leads to groove (31), the bottom both sides of leading to groove (31) are rotated and are connected with rebound net (311).
3. The magnetic fishing device for fishing the small junk in the oil well according to the claim 2, characterized in that: the bottom of the swing strip (c 1) is fixedly connected with a magnetic core iron (c 3), and an arc-shaped groove (c 2) is formed in the swing strip (c 1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110011180.3A CN112780209B (en) | 2021-01-06 | 2021-01-06 | Magnetic fishing device for fishing small-falling objects in petroleum well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110011180.3A CN112780209B (en) | 2021-01-06 | 2021-01-06 | Magnetic fishing device for fishing small-falling objects in petroleum well |
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| Publication Number | Publication Date |
|---|---|
| CN112780209A CN112780209A (en) | 2021-05-11 |
| CN112780209B true CN112780209B (en) | 2022-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110011180.3A Active CN112780209B (en) | 2021-01-06 | 2021-01-06 | Magnetic fishing device for fishing small-falling objects in petroleum well |
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| CN (1) | CN112780209B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115704278A (en) * | 2021-08-12 | 2023-02-17 | 中国石油天然气股份有限公司 | Downhole fishing rope device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB753458A (en) * | 1952-12-19 | 1956-07-25 | David John Frederick Burns | Improvements in magnetic fishing tools for bore holes |
| CN204175222U (en) * | 2014-09-16 | 2015-02-25 | 中石化胜利石油工程有限公司井下作业公司 | The soft falling object fishing tool in a kind of down-hole |
| CN205036334U (en) * | 2015-09-07 | 2016-02-17 | 中国石油化工股份有限公司 | Down -hole junk fishing barrel |
| CN208106363U (en) * | 2018-02-08 | 2018-11-16 | 王伟志 | Set milling fishing device |
| CN108746094B (en) * | 2018-05-17 | 2020-11-13 | 徐州诚凯知识产权服务有限公司 | Pipeline inner wall belt cleaning device |
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Effective date of registration: 20220812 Address after: 163000 room 503, No.2 Kaiyuan street, Daqing economic and Technological Development Zone, Ranghulu District, Daqing City, Heilongjiang Province Applicant after: Daqing Naigu Petroleum Machinery Equipment Manufacturing Co.,Ltd. Address before: No.3, Dongyi lane, Da'an Kaixian village, Xiqiao Town, Nanhai District, Foshan City, Guangdong Province, 528200 Applicant before: Long Zhengqun |
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