Mechanical fastening tool for coiled tubing

Abstract

The utility model relates to a coiled tubing mechanical fastening tool which comprises a box body, a fixing mechanism and a dismounting and mounting mechanism, a fixing plate is arranged on the box body, the dismounting and mounting mechanism comprises a fixing assembly, a driving assembly and a rotating assembly, the fixing mechanism and the fixing plate jointly clamp a first oil pipe, and the rotating assembly and the fixing assembly jointly clamp a second oil pipe. The second oil pipe and the first oil pipe are located on the same axis, so that coaxial positioning and rapid connection of the first oil pipe and the second oil pipe are achieved, the installation efficiency is greatly improved, and the axis deviation problem caused by manual operation in a traditional method is solved; and the driving assembly can drive the rotating assembly to drive the second oil pipe to rotate clockwise or anticlockwise, so that the rotating assembly is matched with the driving assembly to enable the second oil pipe to rotate bidirectionally, meanwhile, the operation requirements of mounting and dismounting are met, and the mounting efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of petroleum industry technology, and in particular to a mechanical fastening tool for coiled tubing. Background Technology

[0002] With the continuous advancement of petroleum operation technology, coiled tubing live tubing operation technology has become an indispensable key technology due to its significant advantages such as fast operation speed, strong adaptability, and time and labor saving. During the operation, the coiled tubing mechanical clamping tool is a critical piece of equipment, and its performance directly affects the operation efficiency and safety level.

[0003] Currently, in the surface construction phase of coiled tubing live-line operations, the connection between the tubing and downhole tools mainly relies on traditional mechanical fastening methods. These methods involve using two pipe wrenches to clamp the tubing and the downhole tool respectively, then connecting the two wrenches via a mechanical chain hoist for tightening. However, this traditional method requires multiple operators, resulting in low installation efficiency. Furthermore, during tool disassembly, excessive initial tightening torque or thread deformation often leads to difficulty in loosening the connections, severely impacting operational efficiency. Utility Model Content

[0004] This utility model provides a mechanical fastening tool for continuous tubing, which solves at least one of the above-mentioned technical problems.

[0005] In a first aspect, this utility model provides a mechanical fastening tool for coiled tubing, comprising:

[0006] The housing has a fixing plate installed on it;

[0007] A fixing mechanism is fixed to the housing, and the fixing mechanism and the fixing plate together clamp the first oil pipe;

[0008] The disassembly and assembly mechanism is fixed to the housing and includes a fixing component, a driving component, and a rotating component. The rotating component and the fixing component together clamp the second oil pipe so that the axis of the second oil pipe is aligned with the axis of the first oil pipe. The driving component can drive the rotating component to rotate the second oil pipe clockwise or counterclockwise so that the second oil pipe is connected to or disconnected from the first oil pipe.

[0009] In one embodiment, the fixing mechanism includes a first locking pin, a first locking plate, a first connecting plate, and a second connecting plate. One end of the first connecting plate is rotatably connected to the fixing plate, and the other end of the first connecting plate is rotatably connected to the first locking plate. One end of the second connecting plate is rotatably connected to the fixing plate, and the other end of the second connecting plate is fixedly connected to the first locking plate via the first locking pin.

[0010] In one embodiment, the rotating assembly includes a wheel rail, a guide block, a first support body, and a second support body. The first support body and the second support body are respectively fixed to the housing, and the first support body and the second support body are respectively located on both sides of the wheel rail. A guide block is provided on the side of the first support body and the second support body near the wheel rail, and the wheel rail is slidably connected to the guide block.

[0011] In one embodiment, the rotating assembly further includes a positioning shaft, which is respectively disposed on the side of the first support and the second support near the wheel rail. A limit step is provided on the side of the wheel rail away from the driving assembly, and the positioning shaft is slidably connected to the limit step.

[0012] In one embodiment, the rotating assembly further includes a positioning plate, one end of which is fixedly connected to the first support body, and the other end of which is fixedly connected to the second support body.

[0013] In one embodiment, the drive assembly includes a positioning sleeve and a shaft. The positioning sleeve is fixed to the housing, the shaft is rotatably connected to the positioning sleeve, and the shaft is drively connected to the rotating assembly.

[0014] In one embodiment, the drive assembly further includes a housing, and the positioning sleeve is fitted inside the housing.

[0015] In one embodiment, the housing includes a first part and a second part, which together clamp the outer shell.

[0016] In one embodiment, the fixing component includes a second locking pin, a second locking plate, a third connecting plate, and a fourth connecting plate. One end of the third connecting plate is rotatably connected to the rotating component, and the other end of the third connecting plate is rotatably connected to the second locking plate. One end of the fourth connecting plate is rotatably connected to the rotating component, and the other end of the fourth connecting plate is fixedly connected to the second locking plate via the second locking pin.

[0017] In one embodiment, a handle is fixedly provided on the box body.

[0018] Compared with the prior art, the advantages of this utility model are as follows: This application provides a mechanical clamping tool for continuous tubing, including a housing, a fixing mechanism, and a disassembly / assembly mechanism. The housing is provided with a fixing plate. The disassembly / assembly mechanism includes a fixing component, a driving component, and a rotating component. The fixing mechanism and the fixing plate jointly clamp the first tubing, and the rotating component and the fixing component jointly clamp the second tubing, so that the second tubing and the first tubing are located on the same axis. This achieves coaxial positioning and quick connection of the first and second tubing, thereby greatly improving installation efficiency and eliminating the axis misalignment problem caused by manual operation in traditional methods. Furthermore, the driving component can drive the rotating component to rotate the second tubing clockwise or counterclockwise, enabling the rotating component to cooperate with the driving component to rotate the second tubing in both directions, thus meeting the needs of installation and disassembly operations and greatly improving installation efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a mechanical fastening tool for coiled tubing provided in some embodiments of this application.

[0020] Figure 2 This is a partial structural schematic diagram of a mechanical fastening tool for coiled tubing provided in some embodiments of this application.

[0021] Figure 3 This is a structural schematic diagram of the disassembly and assembly mechanism of a coiled tubing mechanical fastening tool provided in some embodiments of this application.

[0022] Figure 4 This is a schematic diagram of the fixing mechanism of a coiled tubing mechanical fastening tool provided in some embodiments of this application.

[0023] Figure label:

[0024] 1. Housing; 2. Fixing plate; 3. Locking pin; 4. First clamping plate; 5. Second clamping plate; 6. Positioning plate; 7. First connecting plate; 8. Second connecting plate; 9. Wheel rail; 10. Positioning sleeve; 11. Outer housing; 12. Positioning shaft; 13. First support body; 14. Guide block; 15. Second support body. Detailed Implementation

[0025] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0026] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0027] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0031] The present invention will be further described below with reference to the accompanying drawings.

[0032] Firstly, see Figure 1 - Figure 4 An embodiment of this application provides a mechanical clamping tool for coiled tubing, comprising a housing 1, a fixing mechanism, and a disassembly / assembly mechanism. A fixing plate 2 is provided on the housing 1; the fixing mechanism is fixed to the housing 1, and the fixing mechanism and the fixing plate 2 together clamp a first tubing; the disassembly / assembly mechanism is fixed to the housing 1, and includes a fixing component, a driving component, and a rotating component. The rotating component and the fixing component together clamp a second tubing so that the axis of the second tubing is aligned with the axis of the first tubing. The driving component can drive the rotating component to rotate the second tubing clockwise or counterclockwise, thereby connecting or disconnecting the second tubing from the first tubing.

[0033] The coiled tubing mechanical clamping tool provided in this embodiment clamps the first tubing together with the fixing mechanism and the fixing plate 2, and clamps the second tubing together with the rotating component and the fixing component, so that the second tubing and the first tubing are located on the same axis. This achieves coaxial positioning and quick connection of the first and second tubing, thereby greatly improving installation efficiency and eliminating the axis misalignment problem caused by manual operation in traditional methods. Furthermore, the driving component can drive the rotating component to rotate the second tubing clockwise or counterclockwise, enabling the rotating component to cooperate with the driving component to rotate the second tubing in both directions, thus meeting the requirements of installation and disassembly and greatly improving installation efficiency.

[0034] like Figure 1 , Figure 2 and Figure 4 As shown, in some embodiments, the fixing mechanism includes a first locking pin 3, a first locking plate 4, a first connecting plate 7, and a second connecting plate 8. One end of the first connecting plate 7 is rotatably connected to the fixing plate 2, and the other end of the first connecting plate 7 is rotatably connected to the first locking plate 4. One end of the second connecting plate 8 is rotatably connected to the fixing plate 2, and the other end of the second connecting plate 8 is fixedly connected to the first locking plate 4 through the first locking pin 3.

[0035] By setting the first connecting plate 7 and the second connecting plate 8 to form a rotating connection with the fixed plate 2 and the first clamping plate 4, the first connecting plate 7 and the second connecting plate 8 can be quickly opened or closed, which facilitates the insertion and removal of the first oil pipe, reduces the time for manual adjustment, maintains structural rigidity, and ensures a stable connection between the first clamping plate 4 and the second connecting plate 8 through the first locking pin 3, preventing loosening due to vibration or external force during operation and improving clamping reliability.

[0036] Specifically, the fixing plate 2 has a first slot, and the first clamping plate 4 has a second slot corresponding to the first slot on the fixing plate 2. The first slot and the second slot together form a clamping groove to clamp the first oil pipe.

[0037] In addition, in other embodiments, the operator can make the fixing mechanism flexible and adjustable by replacing the first card plate 4 of different specifications or adjusting the length of the first connecting plate 7 and the second connecting plate 8 according to specific needs, so as to adapt to a variety of oil pipe sizes and enhance the versatility of the equipment.

[0038] In addition, in order to monitor the pressure applied to the oil pipe, a pressure sensor can be installed at the first locking pin 3, the first connecting plate 7, or the second connecting plate 8 to monitor the clamping force in real time and realize intelligent operation management.

[0039] like Figure 1 - Figure 3 As shown, in some embodiments, the rotating assembly includes a wheel rail 9, a guide block 14, a first support body 13, and a second support body 15. The first support body 13 and the second support body 15 are respectively fixed on the housing 1, and the first support body 13 and the second support body 15 are located on both sides of the wheel rail 9. The first support body 13 and the second support body 15 are each provided with a guide block 14 on the side of the wheel rail 9, and the wheel rail 9 is slidably connected to the guide block 14.

[0040] By setting the first support body 13 and the second support body 15 to be located on both sides of the wheel rail 9 respectively, and slidingly connected to the wheel rail 9 through the guide block 14, a double-sided constraint on the wheel rail 9 is formed, ensuring that the wheel rail 9 does not undergo radial displacement during rotation, thereby improving rotational accuracy.

[0041] In this embodiment, the first support 13 and the second support 15 are arranged symmetrically. By symmetrically arranging the first support 13 and the second support 15, the axial load of the wheel rail 9 can be evenly distributed, avoiding deformation or wear caused by unilateral force, thereby greatly extending the service life of the wheel rail 9.

[0042] In addition, the guide block 14 is detachably connected to the first support body 13 and the second support body 15. The guide block 14 is designed as a vulnerable part that can be disassembled independently, so that maintenance can be carried out without disassembling the wheel rail 9, the first support body 13 and the second support body 15 as a whole, thereby greatly reducing maintenance costs and maintenance time.

[0043] Furthermore, in other embodiments, workers can adjust the spacing between the first support body 13 and the second support body 15 or replace the guide block 14 with a different thickness according to specific needs, thereby adapting to wheel rails 9 of different diameters and further expanding the applicability of the equipment.

[0044] like Figure 1 - Figure 3 As shown, in some embodiments, the rotating assembly further includes a positioning shaft 12, which is respectively disposed on the side of the first support body 13 and the second support body 15 near the wheel rail 9. The side of the wheel rail 9 away from the driving assembly is provided with a limiting step, and the positioning shaft is slidably connected to the limiting step.

[0045] By setting positioning shafts 12 on both the first support body 13 and the second support body 15, a double axial limit can be formed with the limiting step of the wheel rail 9, thereby eliminating the axial movement of the wheel rail 9 during rotation, ensuring the concentricity of the threaded connection of the first oil pipe and the second oil pipe, so that the first oil pipe and the second oil pipe can be accurately connected, and the sliding cooperation between the limiting step and the positioning shaft forms a mechanical stop to prevent the wheel rail 9 from accidentally dislodging from the first support body 13 and the second support body 15 when the drive component is subjected to reverse force, which would cause tool damage.

[0046] In addition, the positioning shaft 12 is also an independent detachable part, which can be replaced separately after wear, greatly reducing maintenance costs.

[0047] like Figure 1 - Figure 3 As shown, in some embodiments, the rotating assembly further includes a positioning plate 6, one end of which is fixedly connected to the first support body 13, and the other end of which is fixedly connected to the second support body 15.

[0048] The first support body 13 and the second support body 15 are laterally connected by the positioning plate 6, so that the relative positions of the first support body 13 and the second support body 15 are fixed, making the entire rotating assembly a whole. This makes it easier to disassemble the whole during maintenance. Furthermore, by fixing the distance between the first support body 13 and the second support body 15 by the positioning plate 6, the offset of the first support body 13 and the second support body 15 caused by vibration can be eliminated, ensuring the guiding accuracy of the wheel rail 9 and the overall stability of the entire structure.

[0049] Furthermore, in some embodiments, the first support 13 and the second support 15 can be slidably connected to the housing 1, thereby allowing for fine-tuning of the fixed second oil pipe relative to the first oil pipe, and thus enabling precise docking of the first oil pipe and the second oil pipe. Of course, in other embodiments, in order to fix the position of the first support 13 and the second support 15 relative to the housing 1, a fixing member is also provided, which is used to fix the position of the first support 13 and the second support 15 relative to the housing 1.

[0050] like Figure 1 - Figure 3 As shown, in some embodiments, the drive assembly includes a positioning sleeve 10 and a shaft. The positioning sleeve 10 is fixed on the housing 1, the shaft is rotatably connected to the positioning sleeve 10, and the shaft is drively connected to the rotating assembly.

[0051] By directly connecting the shaft to the rotating assembly (wheel and rail 9), the need for chains or belts can be eliminated, thereby reducing consumable parts, lowering maintenance costs, and minimizing energy loss. The positioning sleeve 10, fixed to the housing 1, provides radial support to the shaft, ensuring coaxiality during rotation and preventing transmission errors caused by shaft runout. To ensure low-friction transmission between the positioning sleeve 10 and the shaft, a high-precision bearing or self-lubricating bushing is installed between them.

[0052] In this embodiment, the shaft is a worm gear, the wheel rail 9 has gear teeth, and the outer side of the worm gear has a helical surface that meshes with the gear teeth on the wheel rail 9. Figure 1 - Figure 3 As shown, in some embodiments, the drive assembly further includes a housing 11, and a positioning sleeve 10 is fitted inside the housing 11.

[0053] By setting the outer shell 11, the positioning sleeve 10 and the shaft can be completely enclosed, effectively isolating external dust, mud, metal shavings and other contaminants, ensuring that the internal lubricant does not leak, thereby ensuring the stable transmission of the shaft and greatly extending the service life of the positioning sleeve 10 and the shaft.

[0054] like Figure 1 As shown, in some embodiments, the housing 1 includes a first part and a second part, which together hold the outer shell 11.

[0055] By setting the housing 1 into two parts, the first part and the second part, and using the first part and the second part together to clamp the outer shell 11, the rigidity of the entire tool can be greatly improved, the stability of the entire tool can be improved, and further protection can be provided for the drive components.

[0056] like Figure 1 - Figure 3As shown, in some embodiments, the fixing component includes a second locking pin 3, a second locking plate 5, a third connecting plate and a fourth connecting plate. One end of the third connecting plate is rotatably connected to the rotating component, and the other end of the third connecting plate is rotatably connected to the second locking plate 5. One end of the fourth connecting plate is rotatably connected to the rotating component, and the other end of the fourth connecting plate is fixedly connected to the second locking plate 5 by the second locking pin 3.

[0057] By setting the third and fourth connecting plates to form a rotating connection with the rotating component and the second clamping plate 5, the plates can be quickly opened or closed, facilitating the insertion and removal of the oil pipe, reducing manual adjustment time, maintaining structural rigidity, and ensuring a stable connection between the second clamping plate 5 and the fourth connecting plate through the second locking pin 3, preventing loosening due to vibration or external force during operation, and improving clamping reliability.

[0058] Specifically, the rotating component has a third slot, and the second plate 5 has a fourth slot corresponding to the third slot on the rotating component. The third slot and the fourth slot together form a snap-fit ​​groove to clamp the second oil pipe.

[0059] In addition, in other embodiments, the operator can make the fixing component flexible and adjustable by replacing the second card plate 5 of different specifications or adjusting the length of the third connecting plate and the fourth connecting plate according to specific needs, so as to adapt to a variety of oil pipe sizes and enhance the versatility of the equipment.

[0060] In addition, in order to monitor the pressure applied to the oil pipe, a pressure sensor can be installed at the second locking pin 3, the third connecting plate, or the fourth connecting plate to monitor the clamping force in real time and realize intelligent operation management.

[0061] like Figure 1 and Figure 2 As shown, in some embodiments, a handle is fixedly provided on the housing 1.

[0062] By installing handles on the housing 1, the entire tool can be easily moved by workers, greatly improving the efficiency of pipeline maintenance.

[0063] 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 mechanical fastening tool for coiled tubing, characterized in that, include: The housing has a fixing plate installed on it; A fixing mechanism is fixed to the housing, and the fixing mechanism and the fixing plate together clamp the first oil pipe; The disassembly and assembly mechanism is fixed to the housing and includes a fixing component, a driving component, and a rotating component. The rotating component and the fixing component together clamp the second oil pipe so that the axis of the second oil pipe is aligned with the axis of the first oil pipe. The driving component can drive the rotating component to rotate the second oil pipe clockwise or counterclockwise so that the second oil pipe is connected to or disconnected from the first oil pipe.

2. The coiled tubing mechanical fastening tool according to claim 1, characterized in that, The fixing mechanism includes a first locking pin, a first locking plate, a first connecting plate, and a second connecting plate. One end of the first connecting plate is rotatably connected to the fixing plate, and the other end of the first connecting plate is rotatably connected to the first locking plate. One end of the second connecting plate is rotatably connected to the fixing plate, and the other end of the second connecting plate is fixedly connected to the first locking plate through the first locking pin.

3. The coiled tubing mechanical fastening tool according to claim 1, characterized in that, The rotating assembly includes a wheel rail, a guide block, a first support body, and a second support body. The first support body and the second support body are respectively fixed on the housing, and the first support body and the second support body are respectively located on both sides of the wheel rail. A guide block is provided on the side of the first support body and the second support body that is close to the wheel rail. The wheel rail is slidably connected to the guide block.

4. The coiled tubing mechanical fastening tool according to claim 3, characterized in that, The rotating assembly further includes a positioning shaft, which is respectively disposed on the side of the first support body and the second support body near the wheel rail. A limit step is provided on the side of the wheel rail away from the driving assembly, and the positioning shaft is slidably connected to the limit step.

5. The coiled tubing mechanical fastening tool according to claim 3, characterized in that, The rotating assembly also includes a positioning plate, one end of which is fixedly connected to the first support body, and the other end of which is fixedly connected to the second support body.

6. The mechanical fastening tool for coiled tubing according to claim 1, characterized in that, The drive assembly includes a positioning sleeve and a shaft. The positioning sleeve is fixed to the housing, the shaft is rotatably connected to the positioning sleeve, and the shaft is drively connected to the rotating assembly.

7. The coiled tubing mechanical fastening tool according to claim 6, characterized in that, The drive assembly also includes a housing, and the positioning sleeve is fitted inside the housing.

8. The coiled tubing mechanical fastening tool according to claim 7, characterized in that, The housing includes a first part and a second part, which together hold the outer shell.

9. The mechanical fastening tool for coiled tubing according to claim 1, characterized in that, The fixing component includes a second locking pin, a second locking plate, a third connecting plate, and a fourth connecting plate. One end of the third connecting plate is rotatably connected to the rotating component, and the other end of the third connecting plate is rotatably connected to the second locking plate. One end of the fourth connecting plate is rotatably connected to the rotating component, and the other end of the fourth connecting plate is fixedly connected to the second locking plate by the second locking pin.

10. The mechanical fastening tool for coiled tubing according to claim 1, characterized in that, A handle is fixedly installed on the box.

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