Fishing tool
By integrating magnetic suction components on the salvage tool and adsorbing iron ropes, the problem of low salvage success rate in the prior art is solved, and more efficient salvage operations and lower work burdens are achieved.
Patent Information
- Application Number
- CN202421773901.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-07-22
AI Technical Summary
It is difficult for existing salvage tools to firmly hook and get iron ropes to fall, resulting in a low salvage success rate and requires multiple operations, which affects efficiency and increases workload.
A salvage tool is designed, and the magnetic force of the first magnetic suction part and the plurality of second magnetic suction parts is used to absorb iron-like fallen objects, especially iron rope-like fallen objects, which improves the stability and success rate of salvage.
By magnetically adsorbing iron ropes into fallen objects, the salvage success rate is significantly improved, the frequency of salvage operations is reduced, efficiency is improved, and the work burden of staff is reduced.
Smart Images
Figure CN222759764U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of salvaging devices, and in particular relates to a salvaging tool. Background Art
[0002] The development of marine oil and gas resources is the hot spot and focus of the current development of the world's marine economy. Marine oil and gas resources not only have large reserves, but modern science and technology have already possessed tremendous capabilities for their development. The marine oil and gas industry has developed into an emerging, high-value-added leading industry in the marine economy.
[0003] During the oil well exploitation process, there will be some fallen objects in the casing or tubing of the oil well, such as wire ropes, cables, logging wires, wax scrapers, lifting rings, etc. At this time, it is necessary to use salvage tools to salvage the fallen objects to ensure the normal exploitation of the oil well.
[0004] The salvage tool in the related art usually includes a salvage rod and a plurality of salvage hooks, and the plurality of salvage hooks are respectively fixed on the salvage rod. The salvage rod is connected to a drilling tool, the salvage tool is lowered into the casing through the drilling tool, and the fallen objects are salvaged through the salvage hooks.
[0005] However, for some iron rope-like fallen objects, it is difficult for the salvage hook to firmly hook the rope-like fallen objects, resulting in a relatively poor salvage success rate. The staff need to perform salvage operations many times, which not only affects the salvage efficiency, but also increases the workload of the staff, and needs to be improved. Utility Model Content
[0006] In order to solve all or part of the above problems, the purpose of the utility model is to provide a salvage tool that can improve the success rate of salvage, which can not only improve the salvage efficiency but also reduce the workload of the staff.
[0007] The utility model provides a salvage tool, comprising a salvage rod and a plurality of salvage hooks, the salvage tool also comprising:
[0008] A first magnetic attraction portion is disposed at the upper end of the salvage rod;
[0009] There are multiple second magnetic attraction parts, which are respectively arranged on the salvage rod;
[0010] The first magnetic attraction part is annular and sleeved on the salvage rod, the second magnetic attraction part is strip-shaped and arranged on the salvage rod, and the first magnetic attraction part and the second magnetic attraction part are respectively used to absorb iron-like fallen objects.
[0011] Optionally, a plurality of the second magnetic attraction portions are arranged at equal intervals along the circumference of the salvage rod and are staggered along the axial direction of the salvage rod.
[0012] Optionally, the plurality of salvage hooks correspond one-to-one to the plurality of second magnetic attraction parts, and the salvage hooks are located directly below the corresponding second magnetic attraction parts.
[0013] Optionally, the salvage rod includes a salvage joint and a salvage mandrel, the top of the salvage joint is used to connect with the drilling tool, the salvage mandrel is threadedly connected to the bottom of the salvage joint, and the first magnetic attraction portion is arranged on the salvage joint.
[0014] Optionally, the first magnetic attraction portion includes:
[0015] A support ring fixed to the bottom of the salvage joint;
[0016] A supporting groove, which is annular and arranged at the bottom of the supporting ring;
[0017] The annular magnet is embedded in the supporting groove.
[0018] Optionally, a limiting ring is provided on the threaded sleeve of the support ring, a clamping ring is provided at the bottom of the limiting ring, a step groove is provided at the bottom of the annular magnet, and the clamping ring can be embedded in the step groove to clamp and fix the annular magnet in the support groove.
[0019] Optionally, a plurality of mounting grooves are provided on the salvage mandrel, and the plurality of mounting grooves correspond one-to-one to a plurality of the second magnetic attraction parts, and each of the second magnetic attraction parts comprises:
[0020] A bar magnet is disposed in the corresponding mounting groove;
[0021] There are two pressing blocks, which are located at both ends of the corresponding bar magnets;
[0022] Wherein, the two clamping blocks are respectively connected to the salvaging mandrel through fastening screws, and the two clamping blocks can jointly clamp and fix the bar magnet in the mounting groove.
[0023] Optionally, step surfaces are respectively provided on both ends of the bar magnet and the pressing block, and the bar magnet matches the step surfaces on the pressing block.
[0024] Optionally, the salvage mandrel is provided with a plurality of clearance holes, the plurality of clearance holes correspond one-to-one to the plurality of salvage hooks, and each of the salvage hooks comprises:
[0025] A rotating shaft is fixed in the corresponding clearance hole;
[0026] A scooping hook, rotatably connected to the corresponding rotating shaft;
[0027] A torsion spring, disposed between the rotating shaft and the catching hook;
[0028] The elastic force of the torsion spring can cause the scooping hook to rotate and cause the bent hook end of the scooping hook to extend to the outside of the clearance hole.
[0029] Optionally, a limiting block is provided in the clearance hole, and when the scooping hook rotates under the elastic force of the corresponding torsion spring, the end of the scooping hook can abut against the limiting block to achieve support and limitation of the scooping hook.
[0030] It can be seen from the above technical solution that the salvage tool provided by the utility model has the following advantages:
[0031] The device utilizes the magnetic force of a first magnetic attraction part and multiple second magnetic attraction parts to achieve magnetic adsorption of iron-like fallen objects. In particular, for iron rope-like fallen objects, this design can achieve stable salvage of iron rope-like fallen objects, which can not only improve the success rate of salvaging fallen objects, but also reduce the frequency of salvage operations, thereby improving the efficiency of salvage operations and reducing the workload of staff.
[0032] Other features and advantages of the present invention will be described in the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] The accompanying drawings are used to provide a further understanding of the technical solution of the utility model and constitute a part of the specification. Together with the embodiments of the utility model, they are used to explain the technical solution of the utility model and do not constitute a limitation on the technical solution of the utility model.
[0034] Figure 1 This is a schematic diagram of the overall structure of the fishing tool in the embodiment of the utility model;
[0035] Figure 2 This is a front view of a fishing tool in an embodiment of the utility model;
[0036] Figure 3 for Figure 2 A magnified schematic diagram of the middle A area;
[0037] Figure 4 for Figure 2 A magnified schematic diagram of the middle B area;
[0038] Figure 5 for Figure 2 Enlarged schematic diagram of area C in the middle.
[0039] Description of reference numerals:
[0040] 1. Salvage rod; 11. Salvage joint; 12. Salvage mandrel; 2. Salvage hook; 21. Rotating shaft; 22. Salvage hook; 23. Torsion spring; 24. Limit block; 3. First magnetic attraction part; 31. Support ring; 32. Support groove; 33. Ring magnet; 34. Limit ring; 35. Clamping ring; 36. Step groove; 4. Second magnetic attraction part; 41. Bar magnet; 42. Clamping block; 43. Fastening screw; 44. Step surface; 5. Mounting groove; 6. Clearance hole. DETAILED DESCRIPTION
[0041] In order to make the purpose, technical solution and advantages of the utility model more clear, the embodiments of the utility model will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the utility model can be combined with each other arbitrarily without conflict.
[0042] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 The figure shows an embodiment of the utility model, in which a salvage tool is disclosed, including a salvage rod 1 and a plurality of salvage hooks 2. The salvage rod 1 is provided with a first magnetic attraction portion 3 and a plurality of second magnetic attraction portions 4. The first magnetic attraction portion 3 is located at the upper end of the salvage rod 1, and the first magnetic attraction portion 3 and the plurality of second magnetic attraction portions 4 are distributed along the axial direction of the salvage rod 1.
[0043] In one embodiment, Figure 1 , Figure 2 As shown, the first magnetic part 3 is annular in structure and is sleeved on the salvage rod 1, and the second magnetic part 4 is strip-shaped in structure and is arranged on the salvage rod 1. At the same time, the first magnetic part 3 and the second magnetic part 4 are used to absorb iron-like fallen objects to achieve stable salvage of iron rope-like fallen objects.
[0044] The salvage tool in this embodiment utilizes the magnetic force of the first magnetic attraction part 3 and multiple second magnetic attraction parts 4 to achieve magnetic adsorption of iron-like fallen objects, especially for iron rope-like fallen objects or other magnetic fallen objects. This design can achieve stable salvage of iron rope-like fallen objects, which can not only improve the success rate of salvaging fallen objects, but also reduce the frequency of salvage operations, thereby improving the efficiency of salvage operations and reducing the workload of staff.
[0045] In one embodiment, Figure 1 , Figure 2 As shown, a plurality of second magnetic attraction portions 4 are arranged at equal intervals along the circumference of the salvage rod 1 and staggered along the axial direction of the salvage rod 1 to increase the salvage area, thereby improving the success rate of salvaging fallen objects. In this embodiment, four second magnetic attraction portions 4 are provided, and the four second magnetic attraction portions 4 are arranged at 90° intervals.
[0046] In one embodiment, Figure 1 , Figure 2 As shown, multiple salvage hooks 2 correspond one-to-one to multiple second magnetic parts 4, and the salvage hooks 2 are located directly below the corresponding second magnetic parts 4. This design enables the salvage hooks 2 to hook the fallen objects after the second magnetic parts 4 attract the fallen objects, thereby improving the success rate of salvage.
[0047] In one embodiment, Figure 1 , Figure 2 As shown, the salvage rod 1 includes a salvage joint 11 and a salvage mandrel 12. The top of the salvage joint 11 is provided with an internal thread so that the salvage joint 11 can be connected to the drilling tool. At the same time, the bottom of the salvage joint 11 is also provided with an internal thread, and the salvage mandrel 12 is threadedly connected to the bottom of the salvage joint 11.
[0048] In one embodiment, Figure 2 , Figure 3 As shown, the first magnetic attraction part 3 includes a support ring 31, a support groove 32 and an annular magnet 33. The support ring 31 is fixedly connected to the bottom of the salvage joint 11, and the support groove 32 is arranged at the bottom of the support ring 31. The support groove 32 is annular and is arranged along the circumference of the support ring 31. At the same time, the annular magnet 33 is embedded in the support groove 32.
[0049] In this embodiment, the inner side wall of the support ring 31 is provided with an internal thread, and the salvaging mandrel 12 passes through the support ring 31 and is threadedly connected to the support ring 31 to improve the connection stability.
[0050] In one embodiment, Figure 2 , Figure 3 As shown, a limiting ring 34 is threadedly sleeved on the support ring 31, and a clamping ring 35 is integrally formed at the bottom of the limiting ring 34. A step groove 36 is provided at the bottom of the annular magnet 33. The clamping ring 35 can be embedded in the step groove 36 and clamp the annular magnet 33 in the support groove 32 to prevent the annular magnet 33 from falling off. At the same time, the lower surface of the clamping ring 35 is flush with the lower surface of the annular magnet 33, or the lower surface of the annular magnet 33 is lower than the lower surface of the clamping ring 35, so as to ensure the magnetic attraction effect of the annular magnet 33 on magnetic falling objects.
[0051] In this embodiment, the annular magnet 33 can be additionally bonded and fixed in the support groove 32, so as to further improve the connection stability between the annular magnet 33 and the support ring 31. At the same time, the limiting ring 34 and the support ring 31 can also be additionally connected by a tightening screw to improve the connection stability between the limiting ring 34 and the support ring 31, so as to reduce the risk of the annular magnet 33 falling off.
[0052] In one embodiment, Figure 2 , Figure 4As shown, a plurality of mounting grooves 5 are provided on the salvage mandrel 12, and the plurality of mounting grooves 5 correspond one to one with the plurality of second magnetic attraction parts 4. Each second magnetic attraction part 4 comprises a bar magnet 41 and two clamping blocks 42, the bar magnet 41 is movably arranged in the corresponding mounting groove 5, and the two clamping blocks 42 are distributed at both ends of the bar magnet 41. At the same time, the two clamping blocks 42 are connected to the salvage mandrel 12 respectively by fastening screws 43, and the two clamping blocks 42 can jointly clamp and fix the bar magnet 41 in the mounting groove 5.
[0053] In one embodiment, Figure 2 , Figure 4 As shown, step surfaces 44 are respectively provided at both ends of the bar magnet 41 and on the pressing block 42, and the bar magnet 41 matches the step surfaces 44 on the pressing block 42 to improve the pressing and fixing effect of the bar magnet 41. At the same time, the surface of the pressing block 42 is flush with the surface of the bar magnet 41, or the surface of the pressing block 42 is lower than the surface of the bar magnet 41 to ensure the magnetic attraction effect of the bar magnet 41 on the magnetic falling objects.
[0054] In one embodiment, Figure 2 , Figure 5 As shown, a plurality of clearance holes 6 are provided on the salvage mandrel 12, and the plurality of clearance holes 6 correspond to the plurality of salvage hooks 2 one by one. Each salvage hook 2 comprises a rotating shaft 21, a catching hook 22 and a torsion spring 23. The rotating shaft 21 is provided in the clearance hole 6 and is fixedly connected to the salvage mandrel 12. The catching hook 22 is rotatably sleeved on the corresponding rotating shaft 21. The torsion spring 23 is provided between the rotating shaft 21 and the catching hook 22. The elastic force of the torsion spring 23 can make the catching hook 22 rotate and make the bent hook end of the catching hook 22 extend to the outside of the clearance hole 6. Since the catching hook 22 can be opened by the elastic force of the torsion spring 23, the salvage tool can be adapted to the variable diameter casing, thereby improving the adaptability of use.
[0055] In one embodiment, Figure 2 , Figure 5 As shown, a limiting block 24 is fixedly connected in the clearance hole 6. When the scooping hook 22 rotates under the elastic force of the corresponding torsion spring 23 and the bent hook end of the scooping hook 22 extends to the outside of the clearance hole 6, the other end of the scooping hook 22 can abut against the limiting block 24 to limit the rotation angle of the scooping hook 22, and at the same time, the scooping hook 22 can be supported to ensure that the scooping hook 22 can smoothly bring the fallen objects out of the casing.
[0056] When the fallen objects need to be salvaged, the salvage tool is connected to the bottom of the drilling tool, and then the salvage tool is lowered into the casing through the drilling tool. When the drilling tool is lifted, the annular magnet 33 and the bar magnet 41 can absorb the magnetic fallen objects, and the catching hook 22 can hook the fallen objects and bring the fallen objects out of the casing, thereby realizing the salvage of the fallen objects.
[0057] From the above, it can be seen that the use of this salvage device can achieve stable salvage of fallen objects, especially for iron rope-like fallen objects or other magnetic fallen objects. This device can not only improve the success rate of salvaging fallen objects, but also reduce the frequency of salvage operations, thereby improving the efficiency of salvage operations and reducing the workload of staff.
[0058] At the same time, the catching hook 22 can rotate along the corresponding rotating shaft 21, so that the salvaging device can perform contraction and expansion movements during the change of the gap between fish and under the action of the torsion spring 23, so that the salvaging device can form a minimum salvage size. As long as the salvage tool can pass through the fish, it can salvage ropes or small fallen objects. In addition, since the catching hook 22 can change with the size of the gap between fish, the salvaging device can adapt to irregular, variable-diameter ropes or other small fallen objects, improving the adaptability of use.
[0059] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present invention should have the common meanings understood by technicians in the field to which the present invention belongs.
[0060] In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, the meaning of "plurality" is more than two, unless otherwise clearly and specifically limited.
[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it; although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and description of the utility model. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.
Claims
1. A salvage tool, comprising a salvage rod (1) and a plurality of salvage hooks (2), characterized in that: The salvage tool also includes: A first magnetic attraction portion (3) is arranged at the upper end of the salvage rod (1); A plurality of second magnetic attraction parts (4) are respectively arranged on the salvage rod (1); The first magnetic attraction portion (3) is annular and sleeved on the salvage rod (1), the second magnetic attraction portion (4) is strip-shaped and arranged on the salvage rod (1), and the first magnetic attraction portion (3) and the second magnetic attraction portion (4) are respectively used to absorb iron-like fallen objects.
2. The fishing tool according to claim 1, characterized in that: The plurality of second magnetic attraction portions (4) are arranged at equal intervals along the circumference of the salvage rod (1) and are staggeredly distributed along the axial direction of the salvage rod (1).
3. The fishing tool according to claim 2, characterized in that: The plurality of salvage hooks (2) correspond one-to-one to the plurality of second magnetic attraction parts (4), and the salvage hooks (2) are located directly below the corresponding second magnetic attraction parts (4).
4. The fishing tool according to claim 1, characterized in that: The salvage rod (1) comprises a salvage joint (11) and a salvage mandrel (12); the top of the salvage joint (11) is used to connect with a drilling tool; the salvage mandrel (12) is threadedly connected to the bottom of the salvage joint (11); and the first magnetic attraction portion (3) is arranged on the salvage joint (11).
5. The fishing tool according to claim 4, characterized in that: The first magnetic attraction portion (3) comprises: A support ring (31) fixed to the bottom of the salvage joint (11); A supporting groove (32) is annular and is arranged at the bottom of the supporting ring (31); The annular magnet (33) is embedded in the supporting groove (32).
6. The fishing tool according to claim 5, characterized in that: A limiting ring (34) is threadedly sleeved on the support ring (31), a clamping ring (35) is arranged at the bottom of the limiting ring (34), a step groove (36) is arranged at the bottom of the annular magnet (33), and the clamping ring (35) can be embedded in the step groove (36) to clamp and fix the annular magnet (33) in the support groove (32).
7. The fishing tool according to claim 4, characterized in that: The salvaging mandrel (12) is provided with a plurality of mounting grooves (5), the plurality of mounting grooves (5) corresponding one-to-one to the plurality of second magnetic attraction parts (4), and each of the second magnetic attraction parts (4) comprises: A bar magnet (41) is disposed in the corresponding mounting groove (5); Two pressing blocks (42) are located at two ends of the corresponding bar magnets (41); The two pressing blocks (42) are respectively connected to the salvaging mandrel (12) via fastening screws (43), and the two pressing blocks (42) can jointly press and fix the bar magnet (41) in the mounting groove (5).
8. The fishing tool according to claim 7, characterized in that: Step surfaces (44) are respectively provided at both ends of the bar magnet (41) and on the pressing block (42), and the bar magnet (41) matches the step surfaces (44) on the pressing block (42).
9. The fishing tool according to claim 4, characterized in that: The salvage mandrel (12) is provided with a plurality of clearance holes (6), the plurality of clearance holes (6) correspond one-to-one to the plurality of salvage hooks (2), and each of the salvage hooks (2) comprises: A rotating shaft (21) is fixed in the corresponding clearance hole (6); A scooping hook (22) rotatably connected to the corresponding rotating shaft (21); A torsion spring (23) is arranged between the rotating shaft (21) and the catching hook (22); The elastic force of the torsion spring (23) can cause the catching hook (22) to rotate, and cause the bent hook end of the catching hook (22) to extend to the outside of the clearance hole (6).
10. The fishing tool according to claim 9, characterized in that: A limiting block (24) is arranged in the clearance hole (6); when the scooping hook (22) rotates under the elastic force of the corresponding torsion spring (23), the end of the scooping hook (22) can abut against the limiting block (24) to achieve support and limitation of the scooping hook (22).