An adaptive casing wireline disassembly tool

Abstract

The utility model discloses a kind of self-adapting casing protecting wire dismounting tool, it is related to petroleum drilling technical field, including: for the inner periphery of protecting wire abutment arc-shaped support seat, the inner surface of arc-shaped support seat is equipped with buffer layer;For the outer periphery of protecting wire abutment jaw plate, jaw plate is equipped in the end of rotating handle, rotating handle and arc-shaped support seat are hinged by pin shaft, to adjust the distance between jaw plate and arc-shaped support seat by rotating rotating handle, satisfy the dismounting requirement of different size protecting wire.Arc-shaped support seat's inner surface is equipped with buffer layer, buffer layer can prevent the thread damage of protecting wire inner periphery, and protecting wire stress is relatively uniform during dismounting process, not easy to produce local deformation, significantly reduce protecting wire dismounting damage rate, and improve protecting wire dismounting efficiency;Rotating handle and arc-shaped support seat are hinged, the distance between jaw plate and arc-shaped support seat is adjustable, it is favorable to satisfy the dismounting requirement of different size protecting wire, and strong adaptability.

Description

Technical Field

[0001] This utility model relates to the field of oil drilling technology, and more specifically, to an adaptive casing wire removal tool. Background Technology

[0002] In oil drilling, the casing is a core component supporting the wellbore. To prevent damage to the casing threads during transportation, a protective thread is typically installed on the outer casing. Once in place, the protective thread needs to be removed. Currently, the main removal methods include:

[0003] First, pipe wrenches or homemade tools are used to remove the wire protector. However, these tools are not well-suited to the wire protector, and uneven stress on the wire protector during removal can easily lead to localized deformation of the wire protector and breakage of the removal tool. The damage rate of the wire protector during removal is usually as high as 30%.

[0004] Secondly, the wire protector is heated and cut with a cutting torch to separate and remove it. However, the fire safety hazard of heating and disassembling with a cutting torch is high, and each disassembly takes at least 10 minutes, resulting in low wire protector removal efficiency.

[0005] In conclusion, how to reduce the damage rate during wire removal and improve the efficiency of wire removal is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide an adaptive sleeve wire removal tool. The inner surface of the arc-shaped support is provided with a buffer layer, so that the wire is subjected to relatively uniform force during the removal process, which significantly reduces the wire removal damage rate, improves the wire removal efficiency, and can meet the removal requirements of wires of different sizes, with strong adaptability.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An adaptive sleeve sheath removal tool includes:

[0009] An arc-shaped support base for abutting against the inner circumferential surface of the wire protector, wherein the inner surface of the arc-shaped support base is provided with a buffer layer;

[0010] A toothed plate is used to abut against the outer peripheral surface of the wire guard. The toothed plate is located at the end of a rotating handle. The rotating handle is hinged to the arc-shaped support seat by a pin, so that the distance between the toothed plate and the arc-shaped support seat can be adjusted by rotating the rotating handle to meet the disassembly requirements of wire guards of different sizes.

[0011] Preferably, the inner circumferential surface of the dental plate that abuts against the outer circumferential surface of the wire is provided with a first anti-slip structure, the first anti-slip structure enhancing the friction between the inner circumferential surface of the dental plate and the outer circumferential surface of the wire.

[0012] Preferably, the end of the rotating handle is provided with a wedge-shaped connecting surface, and the outer surface of the toothed plate is connected to the wedge-shaped connecting surface.

[0013] Preferably, the angle between the wedge-shaped connecting surface and the axis of the rotating handle is 45°.

[0014] Preferably, the rotating handle has a grip portion at the end opposite to the pin, and the outer periphery of the grip portion has a second anti-slip structure.

[0015] Preferably, the second anti-slip structure includes an anti-slip sleeve fitted over the grip portion, and the outer peripheral surface of the anti-slip sleeve is provided with anti-slip protrusions.

[0016] Preferably, the arc-shaped support includes a support base plate and a connecting side plate. The support base plate is located at the end of the connecting side plate that is relatively far away from the pin. The outer surface of the end face of the connecting side plate that is relatively far away from the wire is provided with an auxiliary striking part, which protrudes from the outer surface of the connecting side plate.

[0017] Preferably, the auxiliary striking part is located in the middle of the connecting side plate, and the auxiliary striking part extends inward along the outer edge of the connecting side plate that is relatively far from the tooth plate.

[0018] Preferably, the buffer layer is bonded to the inner surface of the arc-shaped support base, and the size of the buffer layer is equal to or greater than the size of the inner surface of the arc-shaped support base.

[0019] Preferably, the buffer layer includes a buffer sleeve, which is fitted over the support base plate of the arc-shaped support seat.

[0020] During operation, first, align the arc-shaped support base with the inner circumference of the wire protector. Then, rotate the handle to align the toothed plate with the outer circumference of the wire protector. Use the toothed plate and arc-shaped support base to clamp the wire protector. Next, apply torque to the disassembly tool to loosen the wire protector. Finally, use the rotating handle or manually to unscrew the wire protector off the sleeve.

[0021] The adaptive sleeve wire removal tool provided by this utility model has a compact structure and is safe and reliable. The inner surface of the arc-shaped support base is provided with a buffer layer, which can prevent damage to the threads on the inner circumference of the wire. During the removal process, the wire is subjected to relatively uniform force and is not prone to local deformation, which significantly reduces the damage rate of the wire removal and improves the efficiency of wire removal.

[0022] The handle and the arc-shaped support are hinged together, and the distance between the toothed plate and the arc-shaped support is adjustable, which is beneficial to meet the disassembly requirements of wires of different sizes and has strong adaptability. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 A schematic diagram of a specific embodiment of the adaptive sleeve sheath removal tool provided by this utility model;

[0025] Figure 2 for Figure 1 A structural diagram from another direction;

[0026] Figure 3 This is a schematic diagram of the assembly of the adaptive bushing wire removal tool and the bushing wire.

[0027] Figures 1-3 middle:

[0028] 10-Wire protector; 1-Rotating handle; 11-Anti-slip sleeve; 2-Gear plate; 3-Pin; 4-Arc-shaped support seat; 41-Buffer layer; 42-Auxiliary striking part. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] The core of this utility model is to provide an adaptive sleeve wire removal tool. The inner surface of the arc-shaped support base is provided with a buffer layer, so that the wire is subjected to relatively uniform force during the removal process, which significantly reduces the wire removal damage rate, improves the wire removal efficiency, and can meet the removal requirements of wires of different sizes, making it highly adaptable.

[0031] The adaptive sleeve protector removal tool provided by this utility model includes:

[0032] The arc-shaped support 4 is used to abut against the inner circumferential surface of the wire 10, and the inner surface of the arc-shaped support 4 is provided with a buffer layer 41.

[0033] The toothed plate 2 is used to abut against the outer peripheral surface of the wire protector 10. The toothed plate 2 is located at the end of the rotating handle 1. The rotating handle 1 is hinged to the arc-shaped support 4 by a pin 3 so that the distance between the toothed plate 2 and the arc-shaped support 4 can be adjusted by rotating the rotating handle 1 to meet the disassembly requirements of wire protectors 10 with different thicknesses.

[0034] The arc-shaped support 4 is used to fit and abut against the inner circumferential surface of the wire 10. In order to prevent the threads of the inner circumferential surface of the wire 10 from being damaged and affecting its secondary use, the inner surface of the arc-shaped support 4 that contacts the wire 10 is provided with a buffer layer 41. The buffer layer 41 is provided at least on the inner surface of the support base plate of the arc-shaped support 4, and can also be provided on the inner surface of the connecting side plate of the arc-shaped support 4. The buffer layer 41 can be specifically set as a rubber buffer layer, a felt buffer layer, etc.

[0035] The buffer layer 41 can be bonded to the inner surface of the arc-shaped support 4, or at least one positioning post can be provided on the inner surface of the arc-shaped support 4, and the buffer layer 41 can be sleeved on the positioning post of the arc-shaped support 4. Considering the processing difficulty and cost of the arc-shaped support 4 and the buffering effect, it is preferable to set the buffer layer 41 to be bonded to the inner surface of the arc-shaped support 4.

[0036] To ensure the buffering and protective effect of the buffer layer 41, the size of the buffer layer 41 should be equal to or greater than the size of the inner surface of the arc-shaped support 4, so as to avoid the inner surface of the arc-shaped support 4 directly contacting the inner circumferential surface of the wire 10.

[0037] Of course, the buffer layer 41 can be set as a buffer sleeve, which is fitted over the support base plate of the arc-shaped support seat 4. This makes installation convenient and facilitates the periodic replacement of the buffer layer 41.

[0038] The buffer layer 41 on the inner surface of the arc-shaped support 4 serves two purposes: firstly, it disperses the pressure of the arc-shaped support 4 on the wire guard 10, preventing the wire guard 10 from deforming due to stress concentration; secondly, it increases the friction between the inner surface of the arc-shaped support 4 and the inner surface of the wire guard 10, preventing the arc-shaped support 4 from slipping relative to the wire guard 10 when the disassembly tool applies torque to the wire guard 10, thus preventing damage to the threads on the inner surface of the wire guard 10.

[0039] The toothed plate 2 is used to abut against the outer peripheral surface of the wire protector 10. Since the outer peripheral surface of the wire protector 10 is usually smooth, the inner surface of the toothed plate 2 that contacts the wire protector 10 can either have a buffer layer set like the inner surface of the arc-shaped support 4, or it can be without a buffer layer.

[0040] Preferably, the inner circumferential surface of the toothed plate 2 that abuts against the outer circumferential surface of the wire protector 10 is provided with a first anti-slip structure. The first anti-slip structure enhances the friction between the inner circumferential surface of the toothed plate 2 and the outer circumferential surface of the wire protector 10. The first anti-slip structure can be specifically configured as an anti-slip groove, an anti-slip protrusion, or an anti-slip pattern, for example... Figure 1 The wavy sawtooth structure shown.

[0041] To meet the disassembly requirements of wire protectors 10 of different sizes, the distance between the toothed plate 2 and the arc-shaped support 4 is adjustable. Considering that the support base plate of the arc-shaped support 4 is located inside the wire protector 10 and it is inconvenient to adjust its position, the rotating handle 1 of the toothed plate 2 and the connecting side plate of the arc-shaped support 4 are hinged. By rotating the rotating handle 1, the position of the toothed plate 2 is adjusted, thereby adjusting the distance between the toothed plate 2 and the arc-shaped support 4.

[0042] The rotating handle 1 is hinged to the arc-shaped support seat 4 via the pin 3. It can be understood that the distance L1 from the rotating handle 1 to the pin 3 should be greater than the distance L2 from the toothed plate 2 to the pin 3, so as to achieve a labor-saving effect by extending the power arm and reducing the force required to disassemble the wire guard 10 on the rotating handle 1.

[0043] The specific values ​​of the distance L1 from the rotating handle 1 to the pin 3 and the distance L2 from the toothed plate 2 to the pin 3 will affect not only the lever arm ratio of the rotating handle 1 and thus the magnification effect, but also the weight and center of gravity of the rotating handle 1, and thus the inertial torque of the rotating handle 1. Therefore, the position of the pin 3 on the rotating handle 1 needs to be reasonably designed according to the actual production needs so as to obtain a good labor-saving effect and magnification effect when disassembling the tool, and to overcome the sticking problem of the wire guard 10 by using the inertial torque increase of the rotating handle 1.

[0044] When disassembling the wire protector 10, first align the arc-shaped support 4 with the inner circumferential surface of the wire protector 10, then rotate the handle 1 to align the jaw plate 2 with the outer circumferential surface of the wire protector 10. Use the jaw plate 2 and the arc-shaped support 4 to clamp the wire protector 10. Figure 3 As shown, apply torque to the disassembly tool to loosen the wire 10, and finally remove the wire 10 from the sleeve by turning the handle 1 or manually.

[0045] In this embodiment, the disassembly tool has a compact structure and is safe and reliable. The inner surface of the arc-shaped support base 4 is provided with a buffer layer 41. The buffer layer 41 can prevent the threads on the inner circumferential surface of the wire 10 from being damaged. During the disassembly process, the wire 10 is subjected to relatively uniform force and is not prone to local deformation, which significantly reduces the disassembly damage rate of the wire 10 and improves the disassembly efficiency of the wire 10.

[0046] The handle 1 and the arc-shaped support 4 are hinged together, and the distance between the toothed plate 2 and the arc-shaped support 4 is adjustable, which is conducive to meeting the disassembly requirements of wire guards 10 of different sizes and has strong adaptability.

[0047] Based on the above embodiments, to facilitate the adjustment of the toothed plate 2, a wedge-shaped connecting surface can be provided at the end of the rotating handle 1, and the outer surface of the toothed plate 2 can be connected to the wedge-shaped connecting surface, such as... Figure 1 As stated above.

[0048] Compared to the jaw plate 2 being set perpendicular to the axis of the rotating handle 1, the jaw plate 2 is set at an angle, which can avoid the side rather than the inner surface of the jaw plate 2 contacting the outer peripheral surface of the wire guard 10 at a large angle. This ensures that the jaw plate 2 can stably clamp the wire guard 10 with the arc support seat 4, and improves the applicability of the disassembly tool without changing the size of the jaw plate 2 and the arc support seat 4.

[0049] The specific value of the wedge-shaped connecting surface is calculated and determined according to the actual production needs. For example, in a specific embodiment, the angle between the wedge-shaped connecting surface and the axis of the rotating handle 1 is 45°.

[0050] Based on the above embodiment, the end of the rotating handle 1 that is relatively far away from the pin 3 is provided with a gripping part, and the outer periphery of the gripping part is provided with a second anti-slip structure to prevent the rotating handle 1 from accidentally slipping out of the hand during disassembly, so as to ensure the personal safety of the staff.

[0051] The second anti-slip structure can be configured as an anti-slip layer bonded to the outside of the grip, but it is preferred to be configured as an anti-slip sleeve 11 sleeved on the outside of the grip. The anti-slip sleeve 11 is usually configured as a rubber anti-slip sleeve, which increases the friction coefficient of the grip of the rotating handle 1 and prevents the disassembly tool from slipping out of the hand.

[0052] Preferably, the outer surface of the anti-slip layer and the outer peripheral surface of the anti-slip sleeve 11 can be provided with anti-slip protrusions, which can further increase the friction between the grip and the worker's hand.

[0053] Based on the above embodiments, considering the disassembly problem of the severely deformed wire 10, the arc-shaped support 4 includes a support base plate and a connecting side plate. The support base plate is located at the end of the connecting side plate that is relatively far away from the pin 3. The outer surface of the end face of the connecting side plate that is relatively far away from the wire 10 is provided with an auxiliary striking part 42. The auxiliary striking part 42 protrudes from the outer surface of the connecting side plate so as to increase the load-bearing capacity of the striking area by increasing the thickness of the connecting side plate, thereby ensuring the structural strength and service life of the arc-shaped support 4.

[0054] For severely deformed wire 10, the inertial increase of the disassembly tool makes it difficult to loosen the wire 10. Workers can use tools such as hammers to strike the auxiliary striking part 42 of the arc-shaped support 4 to apply impact vibration to the threaded pair between the wire 10 and the sleeve, thereby helping to loosen the threads of the wire 10.

[0055] To prevent impact from affecting the stability and reliability of the hinged connection between the arc-shaped support 4 and the rotating handle 1, it is preferable to provide an auxiliary striking part 42 in the middle of the connecting side plate, and the auxiliary striking part 42 extends inward along the outer edge of the connecting side plate that is relatively far from the toothed plate 2, such as... Figure 2 As shown;

[0056] To further improve the load-bearing capacity of the auxiliary striking part 42, heat treatment or shot peening can be performed on the auxiliary striking part 42 to enhance its structural strength.

[0057] In a specific embodiment, the rotating handle 1 is made of high-strength alloy steel pipe with a yield strength ≥355MPa. One end of the rotating handle 1 is provided with an inclined toothed plate 2, and the angle between the toothed plate 2 and the axis of the rotating handle 1 is 45°. The other end of the rotating handle 1 is covered with an anti-slip sleeve 11.

[0058] The tooth plate 2 is made of hard alloy with a hardness of HRC60-65. The inner surface of the tooth plate 2 that is in contact with the outer peripheral surface of the wire guard 10 is provided with anti-slip grooves.

[0059] The arc-shaped support base 4 includes a support base plate and a connecting side plate. The support base plate is made of arc-shaped steel plate with a curvature adapted to the diameter of the wire 10, which is 117.8-609.6mm. The inner surface of the support base plate is provided with a buffer layer 41, which is used to disperse pressure and prevent indentations from damaging the threads on the inner surface of the wire 10. The connecting side plate is made of 20mm thick steel plate and can withstand a torque of ≥2000N∙m. The outer surface of the connecting side plate is provided with an auxiliary striking part 42, which is heat-strengthened to improve impact resistance.

[0060] It should be noted that the "first" and "second" in the first and second anti-slip structures mentioned in this application are only used to distinguish the different positions and do not limit the order.

[0061] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0062] The adaptive sleeve sheath removal tool provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An adaptive sleeve sheath removal tool, characterized in that, include: An arc-shaped support (4) for abutting against the inner circumferential surface of the wire (10), wherein the inner surface of the arc-shaped support (4) is provided with a buffer layer (41). A toothed plate (2) is used to abut against the outer peripheral surface of the wire (10). The toothed plate (2) is located at the end of a rotating handle (1). The rotating handle (1) is hinged to the arc-shaped support (4) by a pin (3) so that the distance between the toothed plate (2) and the arc-shaped support (4) can be adjusted by rotating the rotating handle (1) to meet the disassembly requirements of the wire (10) of different sizes.

2. The adaptive sleeve sheath removal tool according to claim 1, characterized in that, The toothed plate (2) has a first anti-slip structure on its inner circumferential surface that abuts against the outer circumferential surface of the wire (10). The first anti-slip structure enhances the friction between the inner circumferential surface of the toothed plate (2) and the outer circumferential surface of the wire (10).

3. The adaptive sleeve protector removal tool according to claim 1, characterized in that, The end of the rotating handle (1) is provided with a wedge-shaped connecting surface, and the outer surface of the toothed plate (2) is connected to the wedge-shaped connecting surface.

4. The adaptive sleeve protector removal tool according to claim 3, characterized in that, The angle between the wedge-shaped connecting surface and the axis of the rotating handle (1) is 45°.

5. The adaptive sleeve protector removal tool according to claim 1, characterized in that, The rotating handle (1) has a grip portion at one end that is relatively far from the pin (3), and the outer periphery of the grip portion has a second anti-slip structure.

6. The adaptive sleeve sheath removal tool according to claim 5, characterized in that, The second anti-slip structure includes an anti-slip sleeve (11) fitted over the grip portion, and the outer peripheral surface of the anti-slip sleeve (11) is provided with anti-slip protrusions.

7. The adaptive sleeve sheath removal tool according to any one of claims 1-6, characterized in that, The arc-shaped support base (4) includes a support base plate and a connecting side plate. The support base plate is located at one end of the connecting side plate that is relatively far away from the pin (3). The outer surface of the end face of the connecting side plate that is relatively far away from the wire guard (10) is provided with an auxiliary striking part (42). The auxiliary striking part (42) protrudes from the outer surface of the connecting side plate.

8. The adaptive sleeve sheath removal tool according to claim 7, characterized in that, The auxiliary striking part (42) is located in the middle of the connecting side plate, and the auxiliary striking part (42) extends inward along the outer edge of the connecting side plate that is relatively far away from the tooth plate (2).

9. The adaptive sleeve sheath removal tool according to any one of claims 1-6, characterized in that, The buffer layer (41) is bonded to the inner surface of the arc-shaped support (4), and the size of the buffer layer (41) is equal to or greater than the size of the inner surface of the arc-shaped support (4).

10. The adaptive sleeve sheath removal tool according to any one of claims 1-6, characterized in that, The buffer layer (41) includes a buffer sleeve, which is fitted over the support base plate of the arc-shaped support seat (4).

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