CN116498242B - Fishing device for oil well operation - Google Patents

Fishing device for oil well operation Download PDF

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Publication number
CN116498242B
CN116498242B CN202310771375.7A CN202310771375A CN116498242B CN 116498242 B CN116498242 B CN 116498242B CN 202310771375 A CN202310771375 A CN 202310771375A CN 116498242 B CN116498242 B CN 116498242B
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CN
China
Prior art keywords
lifting
sleeve
sinking
impact
oil well
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CN202310771375.7A
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Chinese (zh)
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CN116498242A (en
Inventor
徐海波
吕鑫
徐茂起
段金龙
盖文飞
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DONGFANG INDUSTRIAL GROUP OF SHENG LI OIL FIELD
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DONGFANG INDUSTRIAL GROUP OF SHENG LI OIL FIELD
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Priority to CN202310771375.7A priority Critical patent/CN116498242B/en
Publication of CN116498242A publication Critical patent/CN116498242A/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B31/00Fishing for or freeing objects in boreholes or wells
    • E21B31/12Grappling tools, e.g. tongs or grabs
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B31/00Fishing for or freeing objects in boreholes or wells
    • E21B31/12Grappling tools, e.g. tongs or grabs
    • E21B31/18Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20Controlling water pollution; Waste water treatment
    • Y02A20/204Keeping 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)
  • Earth Drilling (AREA)

Abstract

The utility model discloses a salvaging device for oil well operation, which belongs to the technical field of oil well operation and comprises a lifting tightening belt capable of tightening and fixing a tool sunk into a well, and a supporting net barrel which plays a role in shaping and supporting the lifting tightening belt during well descending; the device adopts the plurality of ring fixing components to fix and lift, can avoid the accidental slipping of the drill bit, and improves the success rate and the stability of the salvaging of the drill bit.

Description

Fishing device for oil well operation
Technical Field
The utility model relates to the technical field of oil well operation, in particular to a fishing device for oil well operation.
Background
In oil well development engineering, the engineer carries out the drilling development of choosing suitable point position and carrying out the oil well after the precision calculation to the oil production place, the in-process of boring has the instrument to drop in the well, the drill bit drops in the well, the phenomenon that the drill bit breaks and drops in the well produces, but well point position after the precision calculation can not be changed easily, then the on-the-spot adoption fishing device is salvaged well article, avoid delaying the time limit for a project, the salvage degree of difficulty to the bulky drill bit is big, the drill bit does not have effective borrowing point, the in-process of salvaging is fixed poorly and is more easy to slippage, the utility model patent of publication number CN 207332800U: the utility model provides an oil well fishing device, discloses to be equipped with the hook body of buckling at the one end of salvaging the body, is equipped with the telescopic link on the salvaging the body simultaneously, and the telescopic link can be outwards stretched out by salvaging the body to make salvaging body, hook body and telescopic link enclose into the region that is used for holding salvaged article jointly, can salvage the technical scheme of the article in the oil well with hook body and flexible; patent publication number CN 213360065U: the utility model provides a salvage section of thick bamboo for oil well, discloses a side wall face through fan-shaped backup pad to salvage the thing provides certain holding power to increase the whole fixed force to salvage the thing of salvage section of thick bamboo, prevent its technical scheme who drops, this scheme can consolidate the salvage object, but the reinforced structure is complicated, stability is poor, bearing capacity is low; patent publication number CN 212743934U: the utility model provides a salvage tool for petroleum well, discloses can realize idle running and get the object, and the rotation is superior, and the object after salvaging is proposed, makes convenient and fast, is difficult to appear the technical scheme of card and is blocked; the prior art adopts complicated fixed knot to make the fixed effect to bulky article of waiting to salvage poor, and simple and easy structure can't realize the effective fixed to bulky article of waiting to salvage again.
Disclosure of Invention
The utility model aims to provide a salvaging device for oil well operation, which solves the problem of poor fixing effect on a large-volume article to be salvaged in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a fishing device for oil well operation, including the sleeve that sinks that can sink into the deep well, can carry out the circle solid subassembly of fixed salvage to the instrument in the well that sinks, circle solid subassembly is including the pulling tightening strap that can tighten fixed tool in the well to and the supporting reticular section of thick bamboo that plays the design supporting role to the pulling tightening strap when going down the well, the pulling tightening strap is fixed on supporting reticular section of thick bamboo lateral wall with fixed tie strip winding, circle solid subassembly sets up inside the sleeve that sinks, can follow the sleeve that sinks into the well, the supporting reticular section of thick bamboo is by linking up stationary blade, high rigidity concatenation strip concatenation is constituteed, circle solid subassembly well depth reaches the high back of dropping the drill bit or dropping the instrument, utilize subaerial receipts rope device to be close to the pulling of pulling end one end and pull and tighten up, the annular structure at pulling tightening strap middle part can reduce the internal diameter fast, closely laminate and tighten up the drill bit lateral wall, and the pulling tightening strap receives ascending pulling force to cause and pulling tightening strap and the drill bit friction between the pulling strap and the drill bit to be easily pulled out upwards.
The lifting tightening belt comprises a flexible lifting belt and a coated hose sleeved outside the flexible lifting belt, one end of the flexible lifting belt is a lifting end, the lifting tightening belt can be tightened by the lifting end, lubricating oil is filled in the coated hose, and before the lifting tightening belt is tightened, openings at two ends of the coated hose are in hot melt fit with the side wall of the flexible lifting belt, so that the inner space of the coated hose is sealed, and leakage of the lubricating oil is avoided; the mode of hot melt laminating is adopted, the sealing effect is good and easily fracture, when toughness is carried the stretching strap and is pulled tightly fast, can remove the laminating fast between toughness is carried the stretching strap lateral wall and the cladding hose both ends opening, make lubricating oil can furthest reduce the frictional resistance that toughness carried the stretching strap and receive, make the internal diameter reduce efficiency higher, the quick tightening of toughness is carried the stretching strap accompanied, cladding hose can produce the fold, link up and produce deformation or fracture between stationary blade and the high hardness concatenation strip, and then block each other with the cladding hose of fold, deformation or cracked links up stationary blade, high hardness concatenation strip, and the cladding hose of fold is jointly hugged closely with the drill bit lateral wall, increase the frictional force with between the drill bit lateral wall, and the pit gap of drill bit lateral wall is easily blocked to high hardness concatenation strip corner, make the drill bit be difficult for skidding, can carry out the salvaging the drill bit smoothly.
The fixed tie strip is the iron wire, can effectively fix the lifting tightening strap, and when toughness lifting tightening strap tightens up fast, easily fracture reduces and supports netted section of thick bamboo tightening resistance.
The multi-layer circle solid part is formed by stacking a plurality of circle solid components up and down, the multi-layer circle solid part is arranged inside the sinking sleeve and is sunk along with the sinking sleeve, in the lifting salvage link, the uppermost circle solid component firstly tightens up, lifts and rises the drill bit, when the middle part of the drill bit is close to the area of the second-layer circle solid component, the second-layer circle solid component is tightened up by lifting and rises the drill bit continuously, the lower circle solid component is utilized to continuously tighten and fix the drill bit, a plurality of circle solid components are adopted to fix and lift, unexpected production of drill bit slipping can be avoided, and the success rate and the stability of drill bit salvage are improved.
Still including easy fracture coupling assembling, easy fracture coupling assembling includes spacing groove, installation logical groove, stopper, transversely run through on the linking stationary blade lateral wall and seted up the installation logical groove, the spacing groove has been seted up to installation logical groove central authorities, and high rigidity concatenation strip both ends integrated into one piece has the stopper, inside the spacing inslot was gone into to the stopper card, and high rigidity concatenation strip is the annular with linking the stationary blade on the horizontal direction with the crisscross concatenation of easy fracture coupling assembling, and multilayer annular forms the support netted section of thick bamboo that the shape is netted drum, adopts easy fracture coupling assembling, makes high rigidity concatenation strip receive the locking pressure that comes from carrying and draws tightening strap more easy and links up the stationary blade separation, makes support netted section of thick bamboo collapse scattered easily with carrying and draws tightening strap laminating, circles the drill bit jointly and solid.
The cylindrical mounting groove is formed in the inner side wall of the sinking sleeve, the multilayer ring-shaped fixing parts are embedded into the cylindrical mounting groove, the minimum inner diameter of the multilayer ring-shaped fixing parts is larger than the inner diameter of the sinking sleeve, the sinking sleeve plays a role in protecting the multilayer ring-shaped fixing parts, and the multilayer ring-shaped fixing parts are protected to be carried to sink and are sleeved on the side wall of the drill bit.
The impact cake is arranged above the sinking sleeve, the impact guide cylinder is arranged at the lower end of the impact cake, the impact guide cylinder can be embedded into the sinking sleeve in a sliding manner, the impact cake is connected with the sinking sleeve in an up-down sliding manner by using the impact guide cylinder, the top surface of the impact cake is fixedly provided with a lifting handle, the lifting handle is connected with an external lifting device in a transmission manner by using a rope, and the pulling force is withdrawn after the impact cake is lifted upwards, so that the impact cake falls down, the sinking sleeve can be hit, and the impact cake can help the sinking sleeve to sink smoothly when the sinking sleeve sinks to meet resistance.
The fluid through groove is vertically formed in the center of the impact cake in a penetrating mode, and when the distance between the outer side wall of the impact cake and the well wall is small, the air resistance can be reduced through the fluid through groove, so that the sinking sleeve can effectively obtain power.
The top surface of the sinking sleeve is provided with a through hole communicated with the cylindrical mounting groove for the lifting tightening belt to pass through, so that the resistance in the tightening process of the lifting tightening belt is reduced, the bottom end of the impact cake is fixed with impact blocks in a circumferential array, the edge of the top surface of the impact cake vertically penetrates through to form a lifting through hole, the bottom opening of the lifting through hole is positioned in the gap of each adjacent impact block, the lifting tightening belt penetrates upwards from the inside of the lifting through hole and is in transmission connection with a rope collecting device on the ground, when the side wall of the sinking sleeve is clamped with the well wall, the rope collecting device is driven to loosen the lifting tightening belt, the impact cake is lifted, then the impact cake falls to impact the sinking sleeve, the sinking sleeve falls downwards, in the process, the lifting tightening belt bends along with the falling of the impact cake, friction resistance is not caused to the lifting through hole, the sinking sleeve is smoothly impacted, the sinking sleeve is continuously suspended by the lifting tightening belt, the lifting tightening belt is straight, the sinking sleeve continuously slowly sinks, and the effect of the impact cake is improved.
The bottom end of the inner side wall of the sinking sleeve is an inclined plane, so that the guiding drill bit can conveniently enter the inner space of the sinking sleeve when the drill bit in the falling well is inclined.
Compared with the prior art, the utility model has the beneficial effects that:
the device can sink the lifting tightening belt to the cladding drill bit, the inner diameter can be quickly reduced by lifting one end of the lifting tightening belt, the side wall of the drill bit can be tightly attached and tightened, the greater the lifting tightening belt is subjected to upward tension, the greater the friction between the lifting tightening belt and the drill bit can be caused, the drill bit is easily lifted and fished out, the stable fixation of the drill bit is realized by using a simple structure, and the drill bit is not easy to fall off;
in the device, when the flexible lifting belt is quickly lifted and tightened, the joint between the side wall of the flexible lifting belt and the openings at the two ends of the coated flexible leather tube can be quickly removed, so that the friction resistance of lubricating oil on the flexible lifting belt can be reduced to the greatest extent, the inner diameter reduction efficiency is higher, the flexible lifting belt is quickly tightened, the coated flexible leather tube can generate wrinkles, deformation or fracture is generated between the connecting fixing sheet and the high-hardness splicing strip, and then the flexible lifting belt and the folded coated flexible leather tube are mutually clamped, the deformed or fractured connecting fixing sheet and the high-hardness splicing strip are mutually clamped, the folded coated flexible leather tube is jointly clung to the side wall of the drill bit, the friction force between the folded flexible leather tube and the side wall of the drill bit is increased, the corners of the high-hardness splicing strip are easy to clamp into the pits of the side wall of the drill bit and the side wall of the broken drill bit to ensure that the drill bit is difficult to slide, and the drill bit can be smoothly lifted and fished out;
the device adopts a plurality of ring fixing components to fix and lift, so that the accidental slipping of the drill bit can be avoided, and the success rate and the stability of the salvaging of the drill bit are improved;
the device adopts the easily-broken connecting component, so that the high-hardness splicing strip is more easily separated from the connecting fixing piece under the locking pressure of the lifting tightening belt, the supporting net barrel is scattered in a soft and messy way, and is easily attached to the lifting tightening belt, the drill bit is fastened together, and the stability of fixing the drill bit is improved;
the device utilizes the impact cake to strike the sinking sleeve, and can help the sinking sleeve to sink smoothly when the sinking sleeve sinks and encounters resistance.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a fishing device for oil well operation according to the present utility model;
FIG. 2 is a schematic diagram of the overall disassembly structure of the fishing device for oil well operation;
FIG. 3 is a detailed schematic diagram of the positional relationship between a cylindrical mounting groove and a sinking sleeve of the fishing device for oil well operation;
FIG. 4 is a schematic drawing of a structure of a pull tightening strap winding mode of a fishing device for oil well operation;
FIG. 5 is a schematic view of a ring-fixing assembly of the fishing device for oil well operation;
FIG. 6 is a schematic view of a multi-layer ring-shaped fixing component of the fishing device for oil well operation;
FIG. 7 is a schematic view of a sectional front view of the bottom end of a sinking sleeve of the fishing device for oil well operation;
FIG. 8 is a schematic view of the connection relationship of the easily broken connection assembly area of the fishing device for oil well operation.
Reference numerals in the drawings: 100. a loop fixing component; 101. sinking the sleeve; 102. a cylindrical mounting groove; 103. supporting the reticular cylinder; 104. a connecting fixing piece; 105. a high-hardness splicing strip; 200. a multi-layer loop fastening member; 201. pulling the tightening strap; 202. coating a hose; 203. a ductile pull strap; 204. a pulling end; 301. a limit groove; 302. installing a through groove; 303. a limiting block; 401. striking the cake; 402. an impact block; 403. striking the guide cylinder; 404. a fluid through groove; 405. a lifting handle; 406. and pulling the through hole.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples: as shown in fig. 1-8, the fishing device for oil well operation comprises a sinking sleeve 101 capable of sinking into a deep well, a ring fixing assembly 100 capable of fixing and fishing tools in the sinking well, wherein the ring fixing assembly 100 comprises a lifting tightening belt 201 capable of tightening and fixing the tools in the sinking well, and a supporting net drum 103 which plays a role in sizing and supporting the lifting tightening belt 201 during the sinking well, the lifting tightening belt 201 is wound and fixed on the outer side wall of the supporting net drum 103 by using a fixing tightening strip, the ring fixing assembly 100 is arranged in the sinking sleeve 101 and can follow the sinking sleeve 101 to sink into the well, the supporting net drum 103 is formed by splicing a connecting fixing piece 104 and a high-hardness splicing strip 105, after the sinking depth of the ring fixing assembly 100 reaches the height of a dropped drill bit or the dropped tool, the inner diameter of the lifting tightening belt 201 is quickly reduced by using an on-ground rope retracting device, the side wall of the drill bit is easily tightened and tightened by the annular structure in the middle of the lifting tightening belt 201, and the drill bit is easily attached to the drill bit side wall by the fact that the pulling belt 201 is pulled upwards, and the pulling and the lifting tightening belt 201 is pulled upwards by the pulling and pulling the drill bit is pulled upwards by the friction force.
The lifting tightening strap 201 comprises a flexible lifting strap 203 and a flexible covered leather hose 202 sleeved outside the flexible lifting strap 203, one end of the flexible lifting strap 203 is a lifting end 204, the lifting tightening strap 201 can be tightened by the lifting end 204, lubricating oil is filled in the flexible covered leather hose 202, and before the lifting tightening strap 201 is tightened, openings at two ends of the flexible covered leather hose 202 are in hot melt fit with the side wall of the flexible lifting strap 203, so that the inner space of the flexible covered leather hose 202 is sealed, and leakage of the lubricating oil is avoided; the hot melt laminating mode is adopted, the sealing effect is good, and the cladding hose 202 is easy to crack, when the toughness lifting belt 203 is lifted fast, the laminating can be removed fast between the side wall of the toughness lifting belt 203 and the openings at the two ends of the cladding hose 202, the friction resistance born by the toughness lifting belt 203 can be reduced to the greatest extent by lubricating oil, the inner diameter shrinkage efficiency is higher, the toughness lifting belt 203 is tightened fast, the cladding hose 202 can generate folds, deformation or fracture is generated between the connecting fixing sheet 104 and the high-hardness splicing strip 105, and then the cladding hose 202 and the folds are clamped mutually, the deformed or broken connecting fixing sheet 104 and the high-hardness splicing strip 105 are tightly attached to the side wall of the drill bit together, the friction force between the side wall of the drill bit is increased, the corners of the high-hardness splicing strip 105 are easy to be clamped into the pits of the side wall of the drill bit, the side wall of the broken drill bit is raised, the drill bit is not easy to slip, and the drill bit can be lifted and salvaged smoothly.
The fixed tie strip is the iron wire, can effectively fix the lifting tightening strap 201, and when toughness lifting strap 203 tightens up fast, easily fracture reduces and supports netted section of thick bamboo 103 and tighten up the resistance.
The multi-layer circle solid component 200 is formed by stacking a plurality of circle solid components 100 up and down, the multi-layer circle solid component 200 is arranged inside the sinking sleeve 101, the sinking sleeve 101 is sunk, in the lifting salvage link, the uppermost circle solid component 100 firstly tightens up, lifts and lifts the drill bit, when the drill bit rises to the position that the middle part of the drill bit is close to the area of the second-layer circle solid component 100, the second-layer circle solid component 100 is tightened up by lifting and lifting the drill bit continuously, the lower circle solid component 100 is utilized to tighten and fix the drill bit continuously, the plurality of circle solid components 100 are adopted to fix and lift, the unexpected generation of drill bit slipping can be avoided, and the success rate and the stability of drill bit salvage are improved.
Still including easy fracture coupling assembling, easy fracture coupling assembling includes spacing groove 301, installation through groove 302, stopper 303, transversely run through on the linking stationary blade 104 lateral wall and seted up installation through groove 302, the spacing groove 301 has been seted up to installation through groove 302 central authorities, high rigidity concatenation strip 105 both ends integrated into one piece has stopper 303, stopper 303 card is gone into inside spacing groove 301, high rigidity concatenation strip 105 is the annular with linking stationary blade 104 in the horizontal direction with the crisscross concatenation of easy fracture coupling assembling, multilayer annular forms the support netted section of thick bamboo 103 that is netted drum in shape, adopt easy fracture coupling assembling, make high rigidity concatenation strip 105 receive the locking pressure from carrying and draw tightening strap 201 more easily and link up stationary blade 104 separation, make support netted section of thick bamboo 103 collapse scattered, easily laminate with carrying and draw tightening strap 201, carry out the circle jointly to the drill bit and fix.
The cylindrical mounting groove 102 is formed in the inner side wall of the sinking sleeve 101, the multi-layer ring-shaped fixing part 200 is embedded into the cylindrical mounting groove 102, the minimum inner diameter of the multi-layer ring-shaped fixing part 200 is larger than the inner diameter of the sinking sleeve 101, the sinking sleeve 101 plays a role in protecting the multi-layer ring-shaped fixing part 200, and the multi-layer ring-shaped fixing part 200 is protected to be carried to sink and sleeved on the side wall of the drill bit.
The impact cake 401 is arranged above the sinking sleeve 101, the impact guide cylinder 403 is arranged at the lower end of the impact cake 401, the impact guide cylinder 403 can be embedded into the sinking sleeve 101 in a sliding mode, the impact cake 401 is connected with the sinking sleeve 101 in a sliding mode up and down through the impact guide cylinder 403, the lifting handle 405 is fixedly arranged on the top surface of the impact cake 401, the lifting handle 405 is connected with an external lifting device through a rope in a transmission mode, pulling force is withdrawn after the impact cake 401 is lifted upwards, the impact cake 401 falls down, the sinking sleeve 101 can be hit, and the sinking sleeve 101 can be helped to sink smoothly when the sinking sleeve 101 sinks down to meet resistance.
The fluid through groove 404 is vertically penetrated in the center of the impact cake 401, and when the space between the outer side wall of the impact cake 401 and the well wall is small, the air resistance of the fluid through groove 404 can be reduced, so that the sinking sleeve 101 can effectively obtain power.
The top surface of the sinking sleeve 101 is provided with a through hole communicated with the cylindrical mounting groove 102, the lifting tightening belt 201 passes through the through hole, the resistance in the tightening process of the lifting tightening belt 201 is reduced, the bottom end of the impact cake 401 is fixedly provided with impact blocks 402 in a circumferential array, the edge of the top surface of the impact cake 401 vertically passes through the lifting through hole 406, the bottom opening of the lifting through hole 406 is positioned in the gap between every two adjacent impact blocks 402, the lifting tightening belt 201 passes through the lifting through hole 406 upwards and is in transmission connection with a rope collecting device on the ground, when the side wall of the sinking sleeve 101 is clamped with a well wall, the rope collecting device is driven to loosen the lifting tightening belt 201, the impact cake 401 is lifted, the impact cake 401 falls down to impact the sinking sleeve 101, the sinking sleeve 101 falls down, the impact cake 401 falls down, the friction resistance is not caused to the lifting through hole 406, the sinking sleeve 101 is smoothly hit down, the lifting tightening belt 201 is continuously hung down, the lifting tightening belt 201 is kept straight, and the sinking sleeve 101 continues to slowly sink, and the effect of the impact cake 401 is improved.
The bottom end of the inner side wall of the sinking sleeve 101 is an inclined surface, so that when the drill bit in the falling well is inclined, the drill bit can be conveniently guided into the inner space of the sinking sleeve 101.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in 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 utility model 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.

Claims (8)

1. The utility model provides a fishing device for oil well operation which characterized in that: the device comprises a sinking sleeve (101) capable of sinking into a deep well, and a ring fixing assembly (100) capable of fixing and salvaging a tool in the sinking well, wherein the ring fixing assembly (100) comprises a lifting tightening belt (201) capable of tightening and fixing the tool in the sinking well, and a supporting net barrel (103) which plays a shaping supporting role on the lifting tightening belt (201) when the tool is lowered into the well, the lifting tightening belt (201) is wound and fixed on the outer side wall of the supporting net barrel (103) by using the fixing tightening belt, the ring fixing assembly (100) is arranged inside the sinking sleeve (101) and can sink into the well along with the sinking sleeve (101), and the supporting net barrel (103) is formed by splicing a connecting fixing piece (104) and a high-hardness splicing strip (105); the lifting tightening belt (201) comprises a flexible lifting belt (203) and a coated hose (202) sleeved outside the flexible lifting belt (203), one end of the flexible lifting belt (203) is a lifting end (204), the lifting end (204) can tighten the lifting tightening belt (201), lubricating oil is filled in the coated hose (202), and before the lifting tightening belt (201) is tightened, openings at two ends of the coated hose (202) are in hot melting fit with the side wall of the flexible lifting belt (203), so that the inner space of the coated hose (202) is sealed, and lubricating oil leakage is avoided; still including easy fracture coupling assembling, easy fracture coupling assembling includes spacing groove (301), installs logical groove (302), stopper (303), install logical groove (302) have transversely been seted up to horizontal run through on linking stationary blade (104) lateral wall, install logical groove (302) central authorities and seted up spacing groove (301), high rigidity concatenation strip (105) both ends integrated into one piece has stopper (303), inside spacing groove (301) was gone into to stopper (303), high rigidity concatenation strip (105) are in the horizontal direction with linking stationary blade (104), utilize the crisscross concatenation of easy fracture coupling assembling to be annular, and the multilayer annular forms the support netted section of thick bamboo (103) that the shape is netted drum.
2. A fishing device for oil well operations as claimed in claim 1, wherein: the fixing and fastening strip is an iron wire.
3. A fishing device for oil well operations as claimed in claim 1, wherein: a plurality of ring fixing components (100) are stacked up and down to form a multi-layer ring fixing component (200), and the multi-layer ring fixing component (200) is arranged inside the sinking sleeve (101) and is sunk along with the sinking sleeve (101).
4. A fishing device for oil well operations as claimed in claim 3, wherein: the inner side wall of the sinking sleeve (101) is provided with a cylindrical mounting groove (102), the multilayer ring-shaped fixing component (200) is embedded into the cylindrical mounting groove (102), the minimum inner diameter of the multilayer ring-shaped fixing component (200) is larger than the inner diameter of the sinking sleeve (101), and the sinking sleeve (101) plays a role in protecting the multilayer ring-shaped fixing component (200).
5. The fishing device for oil well operations according to claim 4, wherein: the utility model discloses a device for lifting and pulling a heavy sleeve, including sleeve (101) and fixed knot, impact cake (401) are provided with above sleeve (101) that sinks, impact guide cylinder (403) are installed to impact cake (401) lower extreme, inside impact guide cylinder (403) can slide embedding sleeve (101) that sinks, impact cake (401) utilize impact guide cylinder (403) and sleeve (101) that sinks sliding connection from top to bottom, impact cake (401) top surface fixed mounting has lift handle (405), and lift handle (405) utilize rope and external lift device transmission to be connected.
6. The fishing device for oil well operations according to claim 5, wherein: the center of the impact cake (401) is vertically penetrated with a fluid through groove (404).
7. The fishing device for oil well operations according to claim 5, wherein: the utility model discloses a take-up device is characterized by comprising a barrel-shaped mounting groove (102) and a sinking sleeve (101), wherein the barrel-shaped mounting groove is provided with a through hole which is communicated with the barrel-shaped mounting groove (102) and is used for carrying and pulling a tightening belt (201) to pass through, the resistance of the carrying and pulling a tightening belt (201) in the tightening process is reduced, an impact block (402) is fixedly arranged at the bottom end of an impact cake (401) in a circumferential array, a carrying and pulling through hole (406) is vertically arranged at the edge of the top surface of the impact cake (401) in a penetrating way, and an opening at the bottom of the carrying and pulling through hole (406) is positioned in the gap between every two adjacent impact blocks (402), and the carrying and pulling tightening belt (201) is connected with a subaerial rope collecting device in a penetrating way after upwards from the inside of the carrying and pulling through hole (406).
8. The fishing device for oil well operations according to claim 5, wherein: the bottom end of the inner side wall of the sinking sleeve (101) is an inclined plane.
CN202310771375.7A 2023-06-28 2023-06-28 Fishing device for oil well operation Active CN116498242B (en)

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CN116498242B true CN116498242B (en) 2023-08-29

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Citations (8)

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CN1887645A (en) * 2006-04-11 2007-01-03 杜德斌 Fishing net for use in well
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CN207161028U (en) * 2017-07-05 2018-03-30 天津市公路工程总公司 Drill bit fishing device with drilling rod
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CN114809968A (en) * 2022-05-05 2022-07-29 海安发达石油仪器科技有限公司 Underground fishing device for oil well
CN115263222A (en) * 2022-09-29 2022-11-01 胜利油田东方实业投资集团有限责任公司 Dual fixed anti-drop's a sucker rod overshot

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CN207161028U (en) * 2017-07-05 2018-03-30 天津市公路工程总公司 Drill bit fishing device with drilling rod
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