CN111140197B - Underground steel wire rope fisher - Google Patents
Underground steel wire rope fisher Download PDFInfo
- Publication number
- CN111140197B CN111140197B CN202010008147.0A CN202010008147A CN111140197B CN 111140197 B CN111140197 B CN 111140197B CN 202010008147 A CN202010008147 A CN 202010008147A CN 111140197 B CN111140197 B CN 111140197B
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- fishing
- motor
- wire rope
- outer cylinder
- steel wire
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 29
- 239000010959 steel Substances 0.000 title claims abstract description 29
- 238000007789 sealing Methods 0.000 claims description 13
- 230000000452 restraining effect Effects 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 1
- 241000251468 Actinopterygii Species 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method 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
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/125—Grappling tools, e.g. tongs or grabs specially adapted for parted wire line or ropes
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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 an underground steel wire rope fisher for underground fishing operation, which comprises an upper connector (1), a fishing hook motor (5), a connecting body (8), a guide shoe (13), a fishing rod (15), a clamping jaw (17), a clamping head nut (18), a clamping head motor (19), a fishing hook nut (22) and the like; the fishing hook motor (5) rotates forwards and drives the fishing hook nut (22) to move the fishing rod (15) downwards for 1-2 meters to hook the steel wire rope, and the fishing hook motor (5) rotates reversely to drive the fishing hook to move upwards and bring the steel wire rope into a fishing tool; the chuck motor (19) rotates, the clamping jaw (17) is driven by the chuck nut (22) to clamp the steel wire rope, and the fishing tool is lifted up to realize steel wire rope fishing; the invention can effectively solve the problem of fishing when the underground steel wire rope is close to the well wall, and improves the efficiency and the safety rate of the steel wire rope fishing operation.
Description
Technical Field
The invention belongs to an oil field underground fishing tool, and particularly relates to an underground steel wire rope fisher.
Background
In the construction operation process of oil and water wells in oil fields, the actual field problem that objects falling down from the well need to be salvaged often occurs, and the salvage operation of the steel wire rope accounts for a larger proportion of the problems. Wire rope is because of having the characteristics that hardness is high, toughness is strong, and it is extremely irregular to fall into the fish top that can cause the fish in the well after the fracture, and its law is difficult to hold, and current fishing tool is when salvaging wire rope, and wire rope loosens easily, and the equipment that leads to wire rope to carry can produce the secondary to the wall of a well and destroy, hugs closely the condition of the wall of a well to wire rope moreover, and current fishing tool is difficult to realize salvaging. The steel wire rope fisher hooks the steel wire rope through the fishing rod, sends the steel wire rope into the fishing tool, and clamps the steel wire rope through the clamping jaw, so that the problems are avoided, and the fishing efficiency is improved.
Disclosure of Invention
The purpose of the invention is: the shortcoming of current fisher is overcome, and if traditional fishing tool salvage the time wire rope pine take off easily, salvage the degree of difficulty when wire rope hugs closely the wall of a well greatly etc. provides a simple structure, equipment convenience, salvage efficient wire rope fisher in the pit.
In order to achieve the purpose, the invention adopts the technical scheme that: a downhole steel wire rope fisher mainly comprises an upper joint, an outer barrel 1, an inner barrel, a motor outgoing line sealing device 1, a fishing hook motor, an explosion-proof shell 1, a connecting body, a motor outgoing line sealing device 2, an explosion-proof shell 2, an outer barrel 2, a guide shoe, a fishing rod, a chuck support, a clamping jaw, a chuck nut, a chuck motor, a circumference constraint body, a bearing and a fishing hook nut; the upper joint is provided with a cable through hole, the upper part of the upper joint is provided with a conical thread and is connected with the continuous oil pipe, and the middle part and the lower part of the upper joint are respectively connected with the outer cylinder 1 and the inner cylinder through threads; the chuck motor and the fishing hook motor are both hollow shaft motors, and the through holes of the two motors are both provided with spline grooves; the fishing hook motor is fixed in the explosion-proof shell 1 through a bolt 1; the upper end of the fishing hook nut is provided with a spline shaft which is matched with a spline groove on a fishing hook motor, and an inner through hole is provided with threads; the chuck motor is fixed in the explosion-proof shell 2 through a bolt 2; a spline shaft is arranged outside the chuck nut, and a taper thread is arranged in an inner through hole; the clamping jaws are of uniformly distributed three-jaw structures, and each clamping jaw is provided with a thread and is connected with a chuck nut; the chuck support is provided with a slideway, and the clamping jaw is restrained to move linearly along the slideway to complete the clamping action; the fishing rod is a thin straight rod, the upper end of the fishing rod is a threaded lead screw which can be matched with a fishing hook nut, and the lower end of the fishing rod is provided with a plurality of fishing hooks.
The outer cylinder 1 is cylindrical, the upper end of the outer cylinder is connected with the upper connector through threads, the lower end of the outer cylinder is connected with the outer cylinder 2 through threads, and annular spaces formed among the outer cylinder 1, the inner cylinder, the connector and the outer cylinder 2 are respectively a motor cable channel.
The motor outgoing line sealing device 1 and the motor outgoing line sealing device 2 are composed of rubber rings, metal gaskets and hollow hexagonal studs.
The inner part of the lower end of the guide shoe is a conical cavity with 18 degrees of taper, and the outer part of the guide shoe is connected with the outer barrel 2 through conical threads.
The circumference restraining body is in a ring shape, the upper end and the lower end of the circumference restraining body are tightly attached to the connecting body and the explosion-proof shell 2 respectively, and an axial through hole is formed in the circumference restraining body to circumferentially position the fishing rod.
The bearing is a thrust ball bearing and is arranged between the connecting body and the fishing hook nut, and the axial force generated when the fishing hook nut and the fishing rod are driven is balanced.
The invention has the following advantages: the invention provides a brand-new underground steel wire rope fisher design scheme, wherein a fishing hook hooks a steel wire rope and then clamps the steel wire rope by a clamping jaw to ensure that the steel wire rope is not easy to loosen and the steel wire rope tightly attached to a well wall can be fished. The invention has the characteristics of simple structure, low cost, high fishing efficiency and the like.
Drawings
Fig. 1 is an assembly schematic diagram of a downhole wireline fisher according to the present invention.
Fig. 2 is a sectional view taken along a-a of fig. 1.
Fig. 3 is a sectional view taken along B-B of fig. 1.
Fig. 4 is a schematic view of a motor lead-out wire sealing device.
Fig. 5 is a three-dimensional view of the salvage hook nut.
In the figure: 1-upper joint, 2-outer cylinder 1, 3-inner cylinder, 4-motor outgoing line sealing device 1, 5-salvage hook motor, 6-explosion-proof shell 1, 7-bolt 1, 8-connecting body, 9-motor outgoing line sealing device 2, 10-explosion-proof shell 2, 11-outer cylinder 2, 12-bolt 2, 13-guide shoe, 14-salvage hook, 15-salvage rod, 16-chuck support, 17-clamping jaw, 18-chuck nut, 19-chuck motor, 20-circumference constraint body, 21-bearing, 22-salvage hook nut, 23-cable through hole, 24-rubber ring, 25-metal washer and 26-hollow hexagonal stud.
Detailed Description
According to the attached drawings, the underground steel wire rope fisher mainly comprises: the fishing hook comprises an upper joint, an outer barrel 1, an inner barrel, a motor outgoing line sealing device 1, a fishing hook motor, an explosion-proof shell 1, a connecting body, a motor outgoing line sealing device 2, an explosion-proof shell 2, an outer barrel 2, a guide shoe, a fishing rod, a chuck support, a clamping jaw, a chuck nut, a chuck motor, a circumference constraint body, a bearing and a fishing hook nut; the upper joint is provided with a cable through hole, the upper part of the upper joint is provided with a conical thread and is connected with the continuous oil pipe, and the middle part and the lower part of the upper joint are respectively connected with the outer cylinder 1 and the inner cylinder through threads; the chuck motor and the fishing hook motor are both hollow shaft motors, and the through holes of the two motors are both provided with spline grooves; the fishing hook motor is fixed in the explosion-proof shell 1 through a bolt 1; the upper end of the fishing hook nut is provided with a spline shaft which is matched with a spline groove on a fishing hook motor, and an inner through hole is provided with threads; the chuck motor is fixed in the explosion-proof shell 2 through a bolt 2; a spline shaft is arranged outside the chuck nut, and a taper thread is arranged in an inner through hole; the clamping jaws are of uniformly distributed three-jaw structures, and each clamping jaw is provided with a thread and is connected with a chuck nut; the chuck support is provided with a slideway, and the clamping jaw is restrained to move linearly along the slideway to complete the clamping action; the fishing rod is a thin straight rod, the upper end of the fishing rod is a threaded lead screw which can be matched with a fishing hook nut, and the lower end of the fishing rod is provided with a plurality of fishing hooks.
The outer cylinder 1 is cylindrical, the upper end of the outer cylinder is connected with the upper connector through threads, the lower end of the outer cylinder is connected with the outer cylinder 2 through threads, and annular spaces formed among the outer cylinder 1, the inner cylinder, the connector and the outer cylinder 2 are respectively a motor cable channel.
The inner part of the lower end of the guide shoe is a conical cavity with 18 degrees of taper, and the outer part of the guide shoe is connected with the outer barrel 2 through conical threads.
When the fishing tool works, the upper joint is connected with the coiled tubing, and the fishing tool is conveyed to the broken steel wire through the coiled tubing. The fishing hook motor rotates forward to drive the fishing rod to descend for 1-2 meters, after the fishing rod is judged to be hooked on the steel wire rope according to the change of the suspended weight of the fishing tool, the fishing hook motor rotates reversely to drive the fishing rod to ascend, after the steel wire rope enters the fishing tool through the guide shoe, the chuck motor operates to drive the clamping jaw to clamp the steel wire rope, the fishing tool is lifted, and the broken steel wire rope is fished out.
Claims (6)
1. The utility model provides a wire rope fisher in pit which characterized in that: the fisher mainly comprises an upper joint (1), an outer cylinder 1(2), an inner cylinder (3), a motor outgoing line sealing device 1(4), a fishing hook motor (5), an explosion-proof shell 1(6), a connecting body (8), a motor outgoing line sealing device 2(9), an explosion-proof shell 2(10), an outer cylinder 2(11), a guide shoe (13), a fishing rod (15), a chuck support (16), a clamping jaw (17), a chuck nut (18), a chuck motor (19), a circumference constraint body (20), a bearing (21) and a fishing hook nut (22); the upper joint (1) is provided with a cable through hole, the upper part is provided with a conical thread and is connected with the coiled tubing, and the middle part and the lower part are respectively connected with the outer cylinder (1), (2) and the inner cylinder (3) through threads; the chuck motor (19) and the fishing hook motor (5) are hollow shaft motors, and the through holes of the two motors are provided with spline grooves; the fishing hook motor (5) is fixed in the explosion-proof shell 1(6) through bolts 1 (7); a spline shaft is arranged at the upper end of the fishing hook nut (22) and matched with a spline groove on the fishing hook motor (5), and a thread is arranged in an inner through hole; the chuck motor (19) is fixed in the explosion-proof shell 2(10) through a bolt 2 (12); a spline shaft is arranged outside the chuck nut, and a taper thread is arranged in an inner through hole; the clamping jaws (17) are uniformly distributed in a three-jaw structure, and each clamping jaw is provided with a thread and is connected with a chuck nut (18); the chuck support (16) is provided with a slideway, and the restraint clamping jaw (17) moves linearly along the slideway to finish the clamping action; the fishing rod (15) is a thin straight rod, the upper end of the fishing rod is a threaded lead screw which can be matched with a fishing hook nut (22), and the lower end of the fishing rod is provided with a plurality of fishing hooks (14).
2. The fishing tool for the underground steel wire rope according to claim 1, wherein the outer cylinder 1(2) is cylindrical, the upper end of the outer cylinder is connected with the upper joint (1) through threads, the lower end of the outer cylinder is connected with the outer cylinder 2(11) through threads, and annular spaces formed between the outer cylinder 1(2) and the inner cylinder (3), the connecting body (8) and the outer cylinder 2(11) are respectively a motor cable channel.
3. A downhole wireline fisher according to claim 1, wherein the motor lead sealing means 1(4) and the motor lead sealing means 2(9) are both composed of a rubber ring (24), a metal washer (25) and a hollow hex stud (2).
4. A downhole wireline fisher according to claim 1, wherein the guide shoe (13) has a tapered inner cavity at the lower end, the taper is 18 °, and the outer part is connected with the outer cylinder 2(11) through tapered threads.
5. The underground steel wire rope fisher according to claim 1, wherein the circumferential restraining body (20) is annular, the upper end and the lower end of the circumferential restraining body are respectively and tightly attached to the connecting body (8) and the explosion-proof housing 2(10), and an axial through hole is formed in the circumferential restraining body to circumferentially position the fishing rod (15).
6. A downhole wireline fisher according to claim 1, wherein the bearing (21) is a thrust ball bearing, which is mounted between the connecting body (8) and the fishing hook nut (22) to balance the axial force generated when the fishing hook nut (22) is in transmission with the fishing rod (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010008147.0A CN111140197B (en) | 2020-01-03 | 2020-01-03 | Underground steel wire rope fisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010008147.0A CN111140197B (en) | 2020-01-03 | 2020-01-03 | Underground steel wire rope fisher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111140197A CN111140197A (en) | 2020-05-12 |
| CN111140197B true CN111140197B (en) | 2021-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010008147.0A Active CN111140197B (en) | 2020-01-03 | 2020-01-03 | Underground steel wire rope fisher |
Country Status (1)
| Country | Link |
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| CN (1) | CN111140197B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113818828A (en) * | 2020-06-19 | 2021-12-21 | 江门宝锐机械工程有限公司 | Screw principle fishing device |
| CN113958280A (en) * | 2021-10-28 | 2022-01-21 | 西南石油大学 | Horizontal well rotation type detritus fishing tool with replaceable spray nozzle |
| CN115823981B (en) * | 2022-11-25 | 2024-06-25 | 重庆交通大学 | Fishing tool for tail wire of deep hole detonator |
| CN117307077B (en) * | 2023-11-27 | 2024-02-09 | 山东省地质矿产勘查开发局第五地质大队（山东省第五地质矿产勘查院） | Drilling rod fishing device in geological drill hole |
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|---|---|---|---|---|
| CN104018798A (en) * | 2014-06-04 | 2014-09-03 | 中国海洋石油总公司 | Pipe interior chip fishing claw for oil-gas well |
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| SU1609955A1 (en) * | 1987-10-16 | 1990-11-30 | Харьковский Автомобильно-Дорожный Институт Им.Комсомола Украины | Fishing device |
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2020
- 2020-01-03 CN CN202010008147.0A patent/CN111140197B/en active Active
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|---|---|---|---|---|
| CN104018798A (en) * | 2014-06-04 | 2014-09-03 | 中国海洋石油总公司 | Pipe interior chip fishing claw for oil-gas well |
| CN205063883U (en) * | 2015-11-02 | 2016-03-02 | 徐进 | Oil field borehole operation is with a multi -functional salvage section of thick bamboo |
| WO2018156977A1 (en) * | 2017-02-23 | 2018-08-30 | Hunting Titan, Inc. | Electronic releasing mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111140197A (en) | 2020-05-12 |
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