Sleeve thread protector dismounting and mounting device

Abstract

The utility model relates to the technical field of well drilling, in particular to a sleeve thread protector dismounting and mounting device. The clamping plate hinged to the rotating column can be contracted or unfolded inwards by rotating the rotating column of the sleeve protector dismounting and mounting device, when the clamping plate is in the contracted posture, a pipe body is placed in the protector, and then the rotating column is rotated to enable the clamping plate to be unfolded and make contact with the inner wall of the protector. At the moment, the clamping plate is not unfolded to the maximum degree, the rotating column is continuously kept rotating in the original direction, the counter-acting force provided by the inner wall of the screw protector can prevent the clamping plate from being further unfolded, and therefore the friction force between the clamping plate and the screw protector can be utilized, the rotating column is rotated to drive the screw protector to rotate in the same direction, and the screw protector is disassembled or assembled. After the operation is finished, the rotating column only needs to be reversely rotated, and the clamping plate is shrunk inwards and is separated from the inner wall of the screw protector, so that the sleeve screw protector dismounting device can be directly taken out from the inside of the screw protector, the operation is very convenient, and the dismounting device can be suitable for screw protectors with different inner diameters.

Description

Technical Field

[0001] This utility model relates to the field of drilling technology, and in particular to a casing wire removal and installation device. Background Technology

[0002] In oil drilling operations, casing is a steel pipe used to support the wellbore of oil and gas wells, ensuring the drilling process and the normal operation of the entire well after completion. To prevent damage to the threads of the casing due to handling, disassembly, or other factors during transportation, each casing is fitted with protective threads at both ends when it leaves the factory. These protective threads need to be removed before the casing is used.

[0003] The conventional method for removing casing threaded wire involves first loosening the threaded wire with pipe wrenches, and then using both hands to rotate and reverse it to remove it. Because drilling requires a large number of casings, the amount of threaded wire that needs to be removed is substantial. This conventional method results in high labor intensity for workers, long uncoupling times, and fatigue from prolonged work, which can easily lead to safety accidents. Utility Model Content

[0004] This invention provides a sleeve protector installation and removal device that can use a retractable clamping plate to lock the protector from the inside, greatly improving the efficiency and safety of the protector installation and removal.

[0005] This utility model provides a sleeve wire removal and installation device, including a tube body, a support assembly, a rotating column and at least two clamping plates. The support assembly is disposed inside the tube body, the rotating column passes through the support assembly and can rotate on the support assembly, the first end of the clamping plate is hinged to the rotating column, the tube body has an opening for the clamping plate to extend out, and the second end of the clamping plate is located outside the tube body.

[0006] In one embodiment, the rotating column includes a column body, a column head, and a mounting base. The column head is disposed at one end of the column body, and the mounting base is sleeved on the surface of the column body and fixedly connected to the column body. The mounting base is provided with an annular groove for one end of the clamping plate to be inserted into. The clamping plate is provided with a through hole, and the clamping plate is connected to the mounting base by a fastener disposed on the mounting base and passing through the through hole.

[0007] In one embodiment, the width of the annular groove is greater than the thickness of the clamping plate, and the clamping plate is rotatable around the fastener.

[0008] In one embodiment, the end face of the second end of the card plate is arc-shaped.

[0009] In one embodiment, the end face of the second end of the card plate is provided with anti-slip texture.

[0010] In one embodiment, the card plate is T-shaped, and the width of the second end of the card plate is greater than the width of the first end of the card plate.

[0011] In one embodiment, the support assembly includes a first support frame and a second support frame spaced apart inside the tube, wherein the edges of the first support frame and the edges of the second support frame are connected to the inner wall of the tube.

[0012] In one embodiment, both the first support frame and the second support frame are cross-shaped. The first support frame is fixed inside the tube by a first screw passing through the tube, and the second support frame is fixed inside the tube by a second screw passing through the tube.

[0013] In one embodiment, the support assembly further includes a sleeve disposed on the first support frame and located outside the tube body, through which the rotating column passes.

[0014] In one embodiment, the rotating column is threadedly connected to the sleeve.

[0015] Compared with existing technologies, the advantages of this invention are as follows: by rotating the rotating column, the clamping plate hinged to the rotating column can retract or expand inward. When the clamping plate is in the retracted position, the tube is placed inside the wire sheath. Then, rotating the rotating column expands the clamping plate, causing it to contact the inner wall of the wire sheath. At this time, the clamping plate is not fully expanded. Continuing to rotate the rotating column in the original direction, the reaction force provided by the inner wall of the wire sheath will prevent the clamping plate from expanding further. Thus, the friction between the clamping plate and the wire sheath can be used to rotate the wire sheath in the same direction by rotating the rotating column, thereby achieving the disassembly or installation of the wire sheath. After the operation is completed, simply rotate the rotating column in the opposite direction, and the clamping plate will retract inward and disengage from the inner wall of the wire sheath. This allows the sleeve wire sheath removal and installation device to be directly removed from inside the wire sheath. The operation is very convenient and applicable to wire sheaths of different inner diameters. Attached Figure Description

[0016] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the sleeve sheath assembly / disassembly device in an embodiment of this utility model;

[0018] Figure 2 This is one of the exploded views of the sleeve sheath assembly / disassembly device in an embodiment of this utility model;

[0019] Figure 3 This is the second exploded view of the sleeve sheath assembly / disassembly device in an embodiment of this utility model;

[0020] Figure 4This is a perspective view of the card plate in an embodiment of this utility model.

[0021] Figure label:

[0022] 1. Pipe body; 11. Opening; 2. Support assembly; 21. First support frame; 22. Second support frame; 23. First screw; 24. Second screw; 25. Sleeve; 3. Rotating column; 31. Column body; 32. Column head; 33. Mounting base; 331. Annular groove; 4. Clamping plate; 41. Through hole; 5. Fastener. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] like Figure 1 and Figure 2 As shown, an embodiment of the sleeve protector assembly / disassembly device of this utility model includes a tube body 1, a support assembly 2, a rotating column 3, and four clamping plates 4. The support assembly 2 is disposed inside the tube body 1. The rotating column 3 passes through the support assembly 2 and can rotate on the support assembly 2. The first end of the clamping plate 4 is hinged to the rotating column 3. An opening 11 is provided on the tube body 1 for the clamping plate 4 to extend out, and the second end of the clamping plate 4 is located outside the tube body 1. Since the first end of the clamping plate 4 is hinged to the rotating column 3, when the rotating column 3 rotates, the opening 11 on the tube body 1 allows the clamping plate 4 to deflect within a certain range. When the clamping plate 4 is fully extended, it is in an unstable state and may deflect clockwise or counterclockwise. Therefore, when the second end of the clamping plate 4 contacts the inner wall of the protector, the clamping plate 4 should be kept in a state between fully extended and fully retracted.

[0025] In this embodiment, the four clamping plates 4 can retract and extend synchronously. The second ends of the four clamping plates 4 are located on the same circumference, so that they can all abut against the inner wall of the protective wire. The number of clamping plates 4 is not limited to four; two clamping plates 4 can also be used to install and remove the protective wire. However, the four clamping plates 4 have four different contact positions with the inner wall of the protective wire, which makes the sleeve and protective wire installation and removal device more stable during use.

[0026] By rotating the rotating column 3, the clamping plate 4, which is hinged to the rotating column 3, can retract or expand inward. When the clamping plate 4 is in the retracted position, the tube body 1 is placed inside the wire sheath. Then, rotating the rotating column 3 causes the clamping plate 4 to expand and contact the inner wall of the wire sheath. At this time, the clamping plate 4 is not fully expanded. Continuing to rotate the rotating column 3 in the original direction, the reaction force provided by the inner wall of the wire sheath will prevent the clamping plate 4 from expanding further. Thus, the friction between the clamping plate 4 and the wire sheath can be used to rotate the wire sheath in the same direction by rotating the rotating column 3, thereby realizing the disassembly or installation of the wire sheath. After the operation is completed, simply rotate the rotating column 3 in the opposite direction, and the clamping plate 4 will retract inward and disengage from the inner wall of the wire sheath. This allows the sleeve wire sheath removal and installation device to be directly removed from inside the wire sheath. The operation is very convenient and applicable to wire sheaths of different inner diameters.

[0027] like Figure 2 and Figure 3 As shown, the rotating column 3 includes a column body 31, a column head 32, and a mounting base 33. The column head 32 is located at one end of the column body 31. The mounting base 33 is fitted onto the surface of the column body 31 and fixedly connected to it. The mounting base 33 has an annular groove 331 for inserting one end of the clamping plate 4. The clamping plate 4 has a through hole 41. The clamping plate 4 is connected to the mounting base 33 by a fastener 5 that is located on the mounting base 33 and passes through the through hole 41. In this embodiment, the column head 32 is hexagonal, which works with an electric wrench to efficiently install and remove the wire protector. Alternatively, the column head 32 can be manually screwed to rotate the rotating column 3. The annular groove 331 on the mounting base 33 allows the clamping plate 4 to be easily installed using the fastener 5. In this embodiment, the width of the annular groove 331 is greater than the thickness of the clamping plate 4. After connection, the clamping plate 4 is not clamped or fixed, but can be deflected to a certain extent.

[0028] like Figure 4 As shown, the end face of the second end of the clamping plate 4 is arc-shaped. Since the inner wall of the wire protector is also arc-shaped, the clamping plate 4 of this shape can have a large contact area when it contacts the inner wall of the wire protector, and it is not easy to slip when loading and unloading the wire protector.

[0029] Furthermore, the end face of the second end of the card plate 4 is provided with anti-slip texture (not shown in the figure) to further reduce the probability of relative sliding between the second end of the card plate 4 and the inner wall of the wire protector.

[0030] like Figure 4 As shown, the card plate 4 is T-shaped, and the width of the second end of the card plate 4 is greater than the width of the first end of the card plate 4, thereby increasing the end face area of ​​the second end of the card plate 4.

[0031] like Figure 2 and Figure 3As shown, the support assembly 2 includes a first support frame 21 and a second support frame 22 spaced apart inside the pipe body 1. The edges of the first support frame 21 and the second support frame 22 are both connected to the inner wall of the pipe body 1. The spaced-apart first support frame 21 and second support frame 22 provide reliable support and limit for the rotating column 3, ensuring that the rotating column 3 remains stable and is not prone to swaying due to force, thus improving the overall reliability of the sleeve sheath assembly and disassembly device.

[0032] Furthermore, both the first support frame 21 and the second support frame 22 are cross-shaped. The first support frame 21 is fixed inside the pipe body 1 by a first screw 23 passing through the pipe body 1, and the second support frame 22 is fixed inside the pipe body 1 by a second screw 24 passing through the pipe body 1. The first support frame 21 and the second support frame 22 do not completely seal the pipe body 1, thus reducing weight while ensuring sufficient support strength. The first screw 23 and the second screw 24 allow for easy installation and removal of the first support frame 21 and the second support frame 22, facilitating maintenance of the sleeve protector installation and removal device.

[0033] Furthermore, the support assembly 2 also includes a sleeve 25, which is disposed on the first support frame 21 and located outside the tube body 1, through which the rotating column 3 passes. The sleeve 25 encloses part of the rotating column 3, thereby further improving the rotational stability of the rotating column 3.

[0034] Furthermore, the rotating column 3 is threadedly connected to the sleeve 25, preventing the rotating column 3 from moving freely along the axial direction and avoiding bending and deformation of the clamping plate 4 due to external impact. Since the rotating column 3 only needs to rotate a small angle to achieve the contraction and expansion of the clamping plate 4, the axial displacement of the rotating column 3 is small when it is screwed on, and it will not cause interference between the clamping plate 4 and the wall of the opening 11 on the tube body 1.

[0035] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A sleeve sheath assembly / disassembly device, characterized in that, The device includes a tube body, a support assembly, a rotating column, and at least two clamping plates. The support assembly is disposed inside the tube body. The rotating column passes through the support assembly and can rotate on the support assembly. The first end of the clamping plate is hinged to the rotating column. The tube body has an opening for the clamping plate to extend out. The second end of the clamping plate is located outside the tube body.

2. The sleeve sheath assembly / disassembly device according to claim 1, characterized in that, The rotating column includes a column body, a column head, and a mounting base. The column head is disposed at one end of the column body. The mounting base is sleeved on the surface of the column body and fixedly connected to the column body. The mounting base is provided with an annular groove for one end of the clamping plate to be inserted. The clamping plate is provided with a through hole. The clamping plate is connected to the mounting base by a fastener disposed on the mounting base and passing through the through hole.

3. The sleeve sheath assembly / disassembly device according to claim 2, characterized in that, The width of the annular groove is greater than the thickness of the clamping plate, and the clamping plate can rotate around the fastener.

4. The sleeve sheath assembly / disassembly device according to claim 1, characterized in that, The end face of the second end of the card plate is arc-shaped.

5. The sleeve sheath installation and removal device according to claim 4, characterized in that, The second end face of the card plate is provided with anti-slip texture.

6. The sleeve sheath installation and removal device according to claim 4, characterized in that, The card plate is T-shaped, and the width of the second end of the card plate is greater than the width of the first end of the card plate.

7. The sleeve sheath assembly / disassembly device according to claim 1, characterized in that, The support assembly includes a first support frame and a second support frame spaced apart inside the tube, with the edges of the first support frame and the second support frame both connected to the inner wall of the tube.

8. The sleeve sheath installation and removal device according to claim 7, characterized in that, Both the first support frame and the second support frame are cross-shaped. The first support frame is fixed inside the tube by a first screw passing through the tube, and the second support frame is fixed inside the tube by a second screw passing through the tube.

9. The sleeve sheath assembly / disassembly device according to claim 8, characterized in that, The support assembly further includes a sleeve, which is disposed on the first support frame and located outside the tube body, and the rotating column passes through the sleeve.

10. The sleeve sheath assembly / disassembly device according to claim 9, characterized in that, The rotating column is threadedly connected to the sleeve.

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