Roller tool for lowering oil field tool string

Abstract

The utility model relates to the technical field of oil field tool string lowering devices, and discloses a roller tool for lowering an oil field tool string, which comprises a left support frame, and one side of the left support frame is hinged with a right support frame through a hinge. According to the rolling wheel tool for lowering the oil field tool string, through the arrangement of the limiting assembly, when the rolling wheel tool is used, a left supporting frame is pulled to rotate on one side of a right supporting frame, then a clamping plate is pushed to clamp and fix the oil field tool string, a threaded bolt is pulled, and a rotating rod rotates in a rotating hole in the right supporting frame; then the threaded bolts are clamped into the clamping grooves in one side of the left supporting frame and one side of the right supporting frame, the fixing nuts are rotated, the fixing nuts rotate on the threaded bolts and extrude the surface of the left supporting frame, and therefore the effect of rapidly installing and clamping the oil field tool string is achieved; and the convenience of lowering the roller tool for the oil field tool string is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oilfield tool string lowering devices, in particular to a roller tool for lowering an oilfield tool string. Background Art

[0002] In oilfield operations, roller tools are a commonly used tool string lowering device, primarily used to provide support and mobility during downhole operations. They help lower the tool string smoothly to the desired depth and effectively raise it to the surface when needed. Typically composed of multiple roller assemblies, these reduce direct contact between the tool and the wellbore wall, thereby reducing friction. This is particularly important for deep well operations, effectively reducing energy consumption and improving operational safety. They enable smooth movement within the wellbore, reducing friction and wear, and ultimately improving operational efficiency.

[0003] The existing roller tool for lowering the oilfield tool string is not convenient for quickly installing and clamping the oilfield tool string during actual use, which affects the construction efficiency. Utility Model Content

[0004] (1) Technical problems solved

[0005] The technical problem solved by the utility model is to provide a roller tool for lowering an oilfield tool string that is highly practical, can be easily operated, and has a relatively simple structure. It solves the problem in the above-mentioned background technology that it is inconvenient to quickly install and clamp the oilfield tool string, which affects construction efficiency.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a roller tool for lowering an oilfield tool string, comprising a left support frame, one side of the left support frame is hinged to the right support frame by a hinge, the inner walls of the left and right support frames are fixedly connected to several groups of buffer assemblies, one end of the buffer assembly is fixedly connected to a support plate, the internal thread of the support plate is connected to two groups of adjustment assemblies, one side of the right support frame is rotatably connected to several groups of limit assemblies, the buffer assembly includes a damping hydraulic rod fixedly connected to the left and right support frames inner walls, the surface of the damping hydraulic rod is sleeved with a buffer spring; the adjustment assembly includes a threaded rod threadedly connected to the inside of the support plate, the surface of the threaded rod is threadedly connected to two groups of limit nuts, one end of the threaded rod is fixedly connected to a fixing cap; the limiting assembly includes a rotating rod rotatably connected to one side of the right support frame, the surface of the rotating rod is sleeved with a threaded bolt, and the surface of the threaded bolt is threadedly connected to a fixing nut.

[0008] As a further solution of the present invention, one end of the threaded rod is rotatably connected to a splint, and one side of the splint is fixedly connected to a protective pad, which is made of rubber and facilitates increased protection for the oilfield tool string.

[0009] As a further solution of the present invention, two groups of fixed frames are sleeved on the surfaces of the left support frame and the right support frame, and several groups of rotating shafts are rotatably connected inside the fixed frames, which facilitate the rotation of the rotating rollers.

[0010] As a further solution of the present invention, a rotating roller is sleeved on the surface of the rotating shaft, and a protective sleeve is sleeved on the surface of the rotating roller. The protective sleeve is convenient for reducing wear and vibration of the rotating roller.

[0011] As a further solution of the present invention, one side of the left support frame and the right support frame are both provided with a slot adapted to the threaded rod, and one group of the slots are internally provided with a rotating hole adapted to the rotating rod, which facilitates the rotation of the rotating rod.

[0012] As a further solution of the present invention, the surfaces of the left support frame and the right support frame are provided with anti-slip grooves, and the top and bottom of the left support frame and the right support frame are fixedly connected with positioning hoops, which facilitate increasing structural stability.

[0013] As a further solution of the present invention, a threaded hole adapted to the threaded rod is provided inside the support plate, and the top surfaces of the left support frame and the right support frame are fixedly connected with a hanging ring for facilitating hanging.

[0014] (3) Beneficial effects

[0015] The utility model provides a roller tool for lowering an oilfield tool string, which has the following beneficial effects:

[0016] 1. The roller tool for lowering the oilfield tool string is provided with a limit assembly. When in use, the left support frame is pulled to rotate on one side of the right support frame, and then the clamping plate is pushed to clamp and fix the oilfield tool string, and the threaded bolt is pulled to make the rotating rod rotate in the rotating hole in the right support frame, and then the threaded bolt is clamped into the clamping groove on one side of the left support frame and the right support frame, and the fixing nut is rotated to make the fixing nut rotate on the threaded bolt and squeeze the surface of the left support frame, thereby achieving the effect of quickly installing and clamping the oilfield tool string, and lowering is carried out by using the rotating rollers on the left and right support frames, which improves the convenience of the roller tool for lowering the oilfield tool string.

[0017] 2. The roller tool for lowering the oilfield tool string, through the setting of the buffer component, during the lowering process, the vibration generated by the movement is transmitted to the damping hydraulic rod through the left support frame and the right support frame respectively. The damping hydraulic rod squeezes the support plate. Since the clamping plate is fixed and the position remains unchanged, the damping hydraulic rod is forced to contract, and then the buffer spring is deformed under force to generate elastic force, offsetting part of the vibration, thereby achieving the effect of buffering and shock absorption, avoiding the oilfield tool string from being vibrated and causing damage to the tools, and improving the safety of the roller tool for lowering the oilfield tool string.

[0018] 3. The roller tool for lowering the oilfield tool string adjusts the settings of the components. When in use, the fixing cap is rotated according to the size of the oilfield tool string, driving the threaded rod to rotate, causing the threaded rod to rotate in the threaded hole on the support plate, and then pushing the clamping plate to move, thereby achieving the effect of clamping oilfield tool strings of different sizes, preventing the different sizes of oilfield tool strings from causing unstable clamping and falling off, and improving the applicability and adjustability of the roller tool for lowering the oilfield tool string. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the adjustment component and the buffer component of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the limit assembly of the utility model.

[0023] In the figure: 1. Left support frame; 2. Right support frame; 3. Buffer assembly; 301. Damping hydraulic rod; 302. Buffer spring; 4. Support plate; 5. Adjustment assembly; 501. Threaded rod; 502. Limit nut; 503. Fixing cap; 6. Limit assembly; 601. Rotating rod; 602. Threaded bolt; 603. Fixing nut; 7. Clamp; 8. Protective pad; 9. Fixed frame; 10. Rotating shaft; 11. Rotating roller; 12. Protective cover; 13. Positioning hoop; 14. Lifting ring. DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] See also Figures 1 to 4The utility model provides a technical solution: a roller tool for lowering an oilfield tool string, comprising a left support frame 1, one side of the left support frame 1 is hingedly connected to a right support frame 2 by a hinge, and the inner walls of the left support frame 1 and the right support frame 2 are fixedly connected with a plurality of buffer components 3. Through the setting of the buffer components 3, the effect of buffering and shock absorption is achieved, and the oilfield tool string is prevented from being vibrated and causing damage to the tool, thereby improving the safety of the roller tool for lowering the oilfield tool string. One end of the buffer component 3 is fixedly connected to a support plate 4, and the internal thread of the support plate 4 is connected with two groups of adjustment components 5. Through the setting of the adjustment component 5, the effect of clamping oilfield tool strings of different sizes is achieved, and the different sizes of oilfield tool strings are prevented, resulting in unstable clamping and falling off, thereby improving the applicability and adjustability of the roller tool for lowering the oilfield tool string. One side of the right support frame 2 is rotatably connected There are several groups of limit assemblies 6. Through the setting of the limit assemblies 6, the effect of quickly installing and clamping the oilfield tool string is achieved, and the rotating rollers 11 on the left support frame 1 and the right support frame 2 are used for lowering, which improves the convenience of the roller tools for lowering the oilfield tool string. The buffer assembly 3 includes a damping hydraulic rod 301 fixedly connected to the inner walls of the left support frame 1 and the right support frame 2, and the surface of the damping hydraulic rod 301 is sleeved with a buffer spring 302; the adjustment assembly 5 includes a threaded rod 501 threadedly connected to the inside of the support plate 4, and the surface of the threaded rod 501 is threadedly connected with two groups of limit nuts 502, and one end of the threaded rod 501 is fixedly connected to a fixing cap 503; the limit assembly 6 includes a rotating rod 601 rotatably connected to one side of the right support frame 2, and the surface of the rotating rod 601 is sleeved with a threaded bolt 602, and the surface of the threaded bolt 602 is threadedly connected with a fixing nut 603.

[0026] One end of the threaded rod 501 is rotatably connected to a splint 7, and one side of the splint 7 is fixedly connected to a protective pad 8. The protective pad 8 is made of rubber. The provision of the protective pad 8 increases the protection of the oilfield tool string.

[0027] Two sets of fixed frames 9 are sleeved on the surfaces of the left support frame 1 and the right support frame 2. The internal rotation of the fixed frame 9 is connected with several sets of rotating shafts 10. The setting of the rotating shafts 10 facilitates the rotation of the rotating roller 11.

[0028] A rotating roller 11 is sleeved on the surface of the rotating shaft 10 , and a protective sleeve 12 is sleeved on the surface of the rotating roller 11 . The provision of the protective sleeve 12 reduces wear and vibration of the rotating roller 11 .

[0029] One side of the left support frame 1 and the right support frame 2 is provided with a slot that is compatible with the threaded rod 501, and one group of slots has a rotating hole that is compatible with the rotating rod 601. The setting of the rotating hole facilitates the rotation of the rotating rod 601.

[0030] The surfaces of the left support frame 1 and the right support frame 2 are provided with anti-slip grooves, and the top and bottom of the left support frame 1 and the right support frame 2 are fixedly connected with positioning hoops 13. The setting of the positioning hoops 13 increases the stability of the structure.

[0031] The support plate 4 has a threaded hole inside that matches the threaded rod 501 , and the top surfaces of the left support frame 1 and the right support frame 2 are fixedly connected with a hanging ring 14 , which facilitates the hanging.

[0032] In the present invention, the working steps of the device are as follows:

[0033] Step 1: During the lowering process, the vibration generated by the movement is transmitted to the damping hydraulic rod 301 through the left support frame 1 and the right support frame 2 respectively. The damping hydraulic rod 301 squeezes the support plate 4. Since the clamping plate 7 is clamped and fixed, the position remains unchanged, causing the damping hydraulic rod 301 to contract under force. In turn, the buffer spring 302 is deformed under force to generate elastic force, offsetting part of the vibration;

[0034] Step 2: When in use, according to the size of the oilfield tool string, rotate the fixing cap 503 to drive the threaded rod 501 to rotate, so that the threaded rod 501 rotates in the threaded hole on the support plate 4, thereby pushing the clamping plate 7 to move;

[0035] The third step: when in use, pull the left support frame 1 to rotate on one side of the right support frame 2, and then push the clamping plate 7 to clamp and fix the oilfield tool string, and pull the threaded bolt 602 to make the rotating rod 601 rotate in the rotating hole in the right support frame 2, and then the threaded bolt 602 is clamped into the card slot on one side of the left support frame 1 and the right support frame 2, and rotate the fixing nut 603 to make the fixing nut 603 rotate on the threaded bolt 602 and squeeze the surface of the left support frame 1. It should be noted that the equipment structure and drawings of the present utility model mainly describe the principle of the present utility model. In the technology of this design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described clearly. On the premise that those skilled in the art understand the principle of the above utility model, they can clearly know the details of its power mechanism, power supply system and control system. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art.

[0036] The standard parts used can be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the components known to technical personnel in this field, their structures and principles can be known to these technical personnel through technical manuals or through conventional experimental methods.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A roller tool for lowering an oilfield tool string, comprising a left support frame (1), characterized in that: One side of the left support frame (1) is hingedly connected to the right support frame (2), and the inner walls of the left support frame (1) and the right support frame (2) are fixedly connected to a plurality of buffer components (3), one end of the buffer component (3) is fixedly connected to a support plate (4), and the internal thread of the support plate (4) is connected to two groups of adjustment components (5), and one side of the right support frame (2) is rotatably connected to a plurality of limit components (6). The buffer assembly (3) comprises a damping hydraulic rod (301) fixedly connected to the inner walls of the left support frame (1) and the right support frame (2), and a buffer spring (302) is sleeved on the surface of the damping hydraulic rod (301); The adjustment assembly (5) comprises a threaded rod (501) threadedly connected to the interior of the support plate (4); two sets of limiting nuts (502) are threadedly connected to the surface of the threaded rod (501); and one end of the threaded rod (501) is fixedly connected to a fixing cap (503); The limiting assembly (6) comprises a rotating rod (601) rotatably connected to one side of the right support frame (2), a threaded bolt (602) is sleeved on the surface of the rotating rod (601), and a fixing nut (603) is threadedly connected to the surface of the threaded bolt (602).

2. The roller tool for lowering an oilfield tool string according to claim 1, characterized in that: One end of the threaded rod (501) is rotatably connected to a clamping plate (7), and one side of the clamping plate (7) is fixedly connected to a protective pad (8), and the material of the protective pad (8) is rubber.

3. The roller tool for lowering an oilfield tool string according to claim 1, characterized in that: Two sets of fixed frames (9) are sleeved on the surfaces of the left support frame (1) and the right support frame (2), and the interiors of the fixed frames (9) are rotatably connected to a plurality of sets of rotating shafts (10).

4. The roller tool for lowering an oilfield tool string according to claim 3, characterized in that: A rotating roller (11) is sleeved on the surface of the rotating shaft (10), and a protective sleeve (12) is sleeved on the surface of the rotating roller (11).

5. The roller tool for lowering an oilfield tool string according to claim 1, characterized in that: A slot adapted to fit the threaded rod (501) is provided on one side of each of the left support frame (1) and the right support frame (2), and a rotation hole adapted to fit the rotating rod (601) is provided inside one group of the slots.

6. The roller tool for lowering an oilfield tool string according to claim 1, characterized in that: Anti-slip grooves are provided on the surfaces of the left support frame (1) and the right support frame (2), and positioning hoops (13) are fixedly connected to the tops and bottoms of the left support frame (1) and the right support frame (2).

7. The roller tool for lowering an oilfield tool string according to claim 1, characterized in that: The support plate (4) is provided with a threaded hole adapted to fit the threaded rod (501), and the top surfaces of the left support frame (1) and the right support frame (2) are both fixedly connected with a hanging ring (14).

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