Pipeline clamping device and under-pressure operation system

Abstract

The invention belongs to the technical field of oil and gas exploitation, and discloses a pipeline clamping device and an under-pressure operation system. The pipeline clamping device comprises an external fixing assembly, an internal clamping assembly and a driving assembly. The external fixing assembly is provided with a mounting channel, and the inner wall of the mounting channel is gradually close to the central axis from a bottom opening to a top opening of the mounting channel in the axial direction. The internal clamping assembly comprises a plurality of clamping parts, the pipeline is arranged among the multiple clamping parts in a penetrating mode and gets close to the top from the bottom of the internal clamping assembly in the axial direction, and the outer walls of the clamping parts gradually get close to the central axis of the internal clamping assembly. The inner clamping assembly is inserted into the mounting channel from the bottom opening, and the multiple clamping parts can move along the inner wall of the mounting channel to be close to one another and abut against the peripheral side of the pipeline. The driving assembly is connected to the internal clamping assembly and drives the internal clamping assembly to be inserted into the mounting channel. According to the pipeline clamping device, pipeline clamping can be automatically achieved, manual intervention is reduced, quick response to operation requirements is achieved, and the operation efficiency and the operation reliability are improved.

Description

Technical Field

[0001] This invention relates to the field of oil and gas extraction technology, and in particular to a pipeline clamping device and a pressurized operation system. Background Technology

[0002] With global economic development and continuously growing energy demand, oil and natural gas, as major energy sources, require constant innovation in their extraction and production technologies to meet market demands. Live well operations technology allows downhole work to be carried out without halting production, which is of great significance for improving the production efficiency and economic benefits of oil and gas fields. Initially used for simple downhole operations, live well operations technology has gradually been applied to more complex operations, such as well workover, well completion, and production enhancement, as advancements in technology. Modern live well operations technology combines mechanical, hydraulic, and automated control technologies, making the process safer, more efficient, and more precise.

[0003] During live-line operations, tubing clamping is a critical step. The tubing needs to remain stable under high pressure to prevent leakage. Traditional tubing clamping methods typically rely on manual operation, which is inefficient and carries high risks.

[0004] Therefore, there is an urgent need for a pipe clamping device and a pressurized operation system to solve the above problems. Summary of the Invention

[0005] According to one aspect of the present invention, the object is to provide a pipe clamping device that can automatically clamp pipes such as oil pipes, reduce manual intervention, achieve rapid response to operational needs, and thereby improve operational efficiency and reliability.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] The pipe clamping device includes:

[0008] An external fixing component is provided with an installation channel, which opens axially from the bottom of the installation channel to the top opening of the installation channel, and the inner wall of the installation channel gradually approaches the central axis of the installation channel.

[0009] An internal clamping assembly includes multiple clamping parts, through which a pipe can pass. The pipe extends axially from the bottom of the internal clamping assembly towards the top of the internal clamping assembly, and the outer walls of the multiple clamping parts gradually approach the central axis of the internal clamping assembly. The internal clamping assembly is inserted into the mounting channel from the bottom opening, and the multiple clamping parts can move along the inner wall of the mounting channel and approach each other to abut against the periphery of the pipe.

[0010] A drive assembly, connected to the internal clamping assembly, is capable of driving the internal clamping assembly to insert into the mounting channel.

[0011] As a preferred embodiment of the pipe clamping device provided by the present invention, the driving assembly includes a movable base and a guide rod. The clamping parts are respectively disposed on the movable base, the clamping parts have guide holes, and the guide rod is arranged radially on the movable base and movably passes through the guide holes.

[0012] As a preferred embodiment of the pipe clamping device provided by the present invention, the driving assembly further includes a hydraulic drive component connected to the movable base, which can drive the movable base to move axially along the installation channel.

[0013] As a preferred embodiment of the pipe clamping device provided by the present invention, the clamping part includes a mounting base and a clamping block. The clamping block is fixedly connected to the side of the mounting base away from the inner wall of the mounting channel. The mounting base abuts against the inner wall of the mounting channel. The pipe can be clamped between the clamping blocks of the plurality of clamping parts.

[0014] As a preferred embodiment of the pipe clamping device provided by the present invention, the clamping block is recessed into the mounting base on the side opposite to the mounting base to form an arc-shaped surface, and the arc-shaped surface can match the periphery of the pipe.

[0015] As a preferred embodiment of the pipe clamping device provided by the present invention, the clamping block is provided with a slip tooth on the side away from the mounting base, and the slip tooth can abut against the periphery of the pipe.

[0016] As a preferred embodiment of the pipe clamping device provided by the present invention, the clamping part further includes a connector, which is fixedly disposed on the mounting base and the clamping block.

[0017] As a preferred embodiment of the pipe clamping device provided by the present invention, the external fixing component includes a connecting flange and a fixing member, the connecting flange is fixedly connected to the fixing member and is configured to be connected to a live working machine, and the installation channel is opened axially in the fixing member.

[0018] As a preferred embodiment of the pipe clamping device provided by the present invention, the fixing member is provided with a plurality of sliding grooves along the circumference of the installation channel, and the clamping part is provided with a sliding embedding block, which can be accommodated in the sliding groove and move along the sliding groove.

[0019] According to another aspect of the present invention, an object is to provide a live-line working system, the live-line working system comprising a live-line working machine, a control system, and a pipe clamping device as described in any of the above embodiments, wherein the external fixing component is connected to the live-line working machine, the pipe is clamped between a plurality of the clamping parts, and the control system is communicatively connected to the drive component and is capable of controlling the working state of the drive component.

[0020] The beneficial effects of this invention are:

[0021] The pipe clamping device provided by this invention includes an external fixing component, an internal clamping component, and a driving component. The external fixing component has an installation channel, with its axial direction extending from the bottom opening of the installation channel towards its top opening, and the inner wall of the installation channel gradually approaching its central axis. The internal clamping component includes multiple clamping parts, through which a pipe can pass. The pipe passes axially from the bottom opening of the internal clamping component towards its top, and the outer walls of the multiple clamping parts gradually approach the central axis of the internal clamping component. The internal clamping component is inserted into the installation channel through its bottom opening. The multiple clamping parts can move along the inner wall of the installation channel and approach each other to abut against the circumference of the pipe. In other words, the movement of the internal clamping component within the installation channel enables the clamping and loosening of the pipe. The installation channel limits the positioning of the internal clamping component, improving the accuracy and reliability of its clamping position relative to the pipe. The driving component is connected to the internal clamping component and drives it to insert into the installation channel. The drive component enables control over the movement of the internal clamping components within the installation channel, achieving automatic control of the pipe clamping device, reducing manual intervention, and enabling rapid response to operational needs, thereby improving operational efficiency and reliability. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0023] Figure 1 This is a top view of the pipe clamping device provided in an embodiment of the present invention;

[0024] Figure 2 yes Figure 1 Sectional view along the middle AA direction;

[0025] Figure 3 yes Figure 1 A magnified view of the structure marked B in the middle.

[0026] In the picture:

[0027] 100. External fixing component; 110. Connecting flange; 120. Fastener; 121. Sliding groove;

[0028] 200. Internal clamping assembly; 210. Clamping part; 211. Mounting base; 212. Clamping block; 213. Connector; 214. Sliding insert block;

[0029] 300. Drive assembly; 310. Movable base; 320. Guide rod. Detailed Implementation

[0030] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connect," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In this embodiment, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0038] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0039] This embodiment provides a pipe clamping device and a live-line working system. The live-line working system includes a live-line working machine, a control system, and the pipe clamping device provided in this embodiment. The pipe clamping device is connected to the live-line working machine, and pipes such as oil pipes can be clamped in the pipe clamping device. The control system can control the clamping force and clamping position of the pipe clamping device on the pipe.

[0040] Figure 1 This shows a top view of the pipe clamping device provided in an embodiment of the present invention. Figure 2 Show Figure 1 Sectional view along the AA direction. (Refer to...) Figure 1 and Figure 2 This embodiment provides a pipe clamping device that can clamp pipes, making it convenient for pipe maintenance, repair or replacement.

[0041] Specifically, the pipe clamping device includes an external fixing assembly 100, an internal clamping assembly 200, and a drive assembly 300. The external fixing assembly 100 can be connected to a live-line working machine and has an axially oriented installation channel. The installation channel opens axially from its bottom to its top, with the inner wall gradually approaching the central axis of the channel. The internal clamping assembly 200 includes a plurality of clamping portions 210 arranged in a circular array. A pipe can pass through the plurality of clamping portions 210. The pipe opens axially from its bottom to its top, with the outer walls of the clamping portions 210 gradually approaching the central axis of the internal clamping assembly 200. The internal clamping assembly 200 is inserted into the installation channel through its bottom opening. The plurality of clamping portions 210 can move along the inner wall of the installation channel and approach each other to abut against the periphery of the pipe. In other words, the clamping and loosening of the pipe can be achieved by moving the internal clamping component 200 within the installation channel. By limiting the internal clamping component 200 through the installation channel, the accuracy and reliability of the clamping position of the internal clamping component 200 relative to the pipe can be improved.

[0042] More specifically, the drive assembly 300 is connected to the internal clamping assembly 200 and can drive the internal clamping assembly 200 to insert into the installation channel. The control system is communicatively connected to the drive assembly 300 and can control the working state of the drive assembly 300. Through the drive assembly 300, the movement of the internal clamping assembly 200 in the installation channel can be controlled, realizing automatic control of the pipe clamping device to clamp the pipe, reducing manual intervention, achieving rapid response to operational needs, and thus improving operational efficiency and reliability.

[0043] More specifically, the external fixing assembly 100 includes a connecting flange 110 and a fixing member 120. The connecting flange 110 is fixed to the periphery of the top end of the fixing member 120 and is flush with the top end of the fixing member 120. The connecting flange 110 is configured to connect to a live working machine. The aforementioned mounting channel is axially opened in the fixing member 120 and passes through the fixing member 120.

[0044] Figure 3 Show Figure 1 A magnified view of the structure marked B in the middle, see reference. Figure 3The fastener 120 has multiple sliding grooves 121 spaced apart on the inner wall of the mounting channel along its circumference. Each clamping part 210 is provided with a sliding insert block 214, which can be accommodated in the corresponding sliding groove 121 and move along the extension direction of the sliding groove 121. The cooperation of the sliding groove 121 and the sliding insert block 214 can guide the movement of the clamping part 210, ensuring the accuracy of clamping the pipe when multiple clamping parts 210 clamp. In this embodiment, there are specifically four clamping parts 210. In other embodiments, there may be five, six, or seven clamping parts 210, as long as they can clamp the pipe circumferentially. The number is not limited in this embodiment.

[0045] Specifically, continue to refer to Figures 1-3 The clamping part 210 includes a mounting base 211 and a clamping block 212. The clamping block 212 is fixedly connected to the side of the mounting base 211 away from the inner wall of the mounting channel via a connector 213. The mounting base 211 can abut against the inner wall of the mounting channel, and the pipe can be clamped between the clamping blocks 212 of the plurality of clamping parts 210. In this embodiment, the connector 213 is fixedly inserted into the mounting base 211 and the clamping block 212, and a countersunk bolt can be selected.

[0046] To be more specific, refer to Figure 1 and Figure 3 The aforementioned sliding insert block 214 protrudes from the mounting base 211 on the side opposite to the clamping block 212. Along the direction away from the mounting base 211, the cross-sectional size of the sliding insert block 214 gradually increases, forming a dovetail-shaped protrusion. Correspondingly, along the direction close to the bottom of the sliding groove 121, the cross-sectional size of the sliding groove 121 gradually increases, forming a dovetail groove structure. This design improves the stability of the sliding insert block 214's movement within the sliding groove 121, preventing it from dislodging.

[0047] More specifically, the clamping block 212 has an arc-shaped surface recessed towards the mounting base 211 on the side opposite to the mounting base 211, and this arc-shaped surface can match the periphery of the pipe. Through the above arrangement, the contact area between the clamping block 212 and the pipe can be increased, ensuring the reliability of clamping the pipe by multiple clamping blocks 212.

[0048] Preferably, the clamping block 212 has a locking tooth on the side opposite to the mounting base 211, which can abut against the periphery of the pipe. By providing a locking tooth on the clamping block 212, the friction between the locking tooth and the pipe can be increased, thereby further improving the reliability of the clamping block 212 clamping the pipe.

[0049] Continue to refer to Figure 2The drive assembly 300 includes a movable base 310 and guide rods 320. The bottom of the mounting base 211 is fixedly connected to the top of the movable base 310. Multiple guide rods 320 are provided, each corresponding to a clamping part 210, and are arranged radially along the movable base 310, directly integrated onto the movable base 310. Each clamping part 210 is provided on the movable base 310, and each clamping part 210 has a guide hole in the radial direction of the internal clamping assembly 200. The guide rods 320 are arranged radially on the movable base 310 and movably pass through the guide holes. The guide rods 320 provide guidance for the clamping parts 210 as they abut against the periphery of the pipe, enabling the clamping parts 210 to move accurately along the radial direction of the movable base 310 (which is also the radial direction of the fixing member 120).

[0050] Specifically, the drive assembly 300 also includes a hydraulic drive component (not shown), which is connected to the movable base 310 and can drive the movable base 310 to move axially along the mounting channel. The hydraulic drive component is communicatively connected to the control system. After inputting relevant parameters according to the specifications of the oil pipe, the control system can control the position of the movable base 310 along the axial direction of the pipe, thereby adjusting the clamping position and clamping force of the clamping part 210 on the pipe. After the pipe maintenance or other procedures are completed, the control system can control the hydraulic drive component to move the movable base 310 back to its original position, automatically releasing the clamping state of the pipe clamping device.

[0051] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A pipe clamping device, characterized in that, include: An external fixing component (100) has an opening for mounting channels, with the bottom opening of the mounting channels approaching the top opening of the mounting channels along the axial direction, and the inner wall of the mounting channels gradually approaching the central axis of the mounting channels. An internal clamping assembly (200) includes a plurality of clamping parts (210), through which a pipe can pass. The pipe passes through the plurality of clamping parts (210) and moves axially from the bottom of the internal clamping assembly (200) towards the top of the internal clamping assembly (200). The outer walls of the plurality of clamping parts (210) gradually approach the central axis of the internal clamping assembly (200). The internal clamping assembly (200) is inserted into the mounting channel through the bottom opening. The plurality of clamping parts (210) can move along the inner wall of the mounting channel and move closer to each other to abut against the periphery of the pipe. A drive assembly (300), connected to the internal clamping assembly (200), is capable of driving the internal clamping assembly (200) to be inserted into the mounting channel.

2. The pipe clamping device according to claim 1, characterized in that, The drive assembly (300) includes a movable base (310) and a guide rod (320). The clamping part (210) is respectively disposed on the movable base (310). The clamping part (210) has a guide hole. The guide rod (320) is arranged radially on the movable base (310) and movably passes through the guide hole.

3. The pipe clamping device according to claim 2, characterized in that, The drive assembly (300) further includes a hydraulic drive component connected to the movable base (310) and capable of driving the movable base (310) to move axially along the mounting channel.

4. The pipe clamping device according to claim 1, characterized in that, The clamping part (210) includes a mounting base (211) and a clamping block (212). The clamping block (212) is fixed to the side of the mounting base (211) away from the inner wall of the mounting channel. The mounting base (211) abuts against the inner wall of the mounting channel. The pipe can be clamped between the clamping blocks (212) of the plurality of clamping parts (210).

5. The pipe clamping device according to claim 4, characterized in that, The clamping block (212) is recessed into the mounting base (211) on the side opposite to the mounting base (211) to form an arc-shaped surface, which can match the periphery of the pipe.

6. The pipe clamping device according to claim 4, characterized in that, The clamping block (212) is provided with a locking tooth on the side opposite to the mounting base (211), and the locking tooth can abut against the periphery of the pipe.

7. The pipe clamping device according to claim 4, characterized in that, The clamping part (210) further includes a connector (213), which is fixedly inserted through the mounting base (211) and the clamping block (212).

8. The pipe clamping device according to any one of claims 1-7, characterized in that, The external fixing assembly (100) includes a connecting flange (110) and a fixing member (120), the connecting flange (110) being fixed to the fixing member (120) and configured to be connected to a live working machine, the installation channel being axially opened in the fixing member (120).

9. The pipe clamping device according to claim 8, characterized in that, The fixing member (120) has a plurality of sliding grooves (121) along the circumference of the mounting channel. The clamping part (210) is provided with a sliding insert block (214). The sliding insert block (214) can be accommodated in the sliding groove (121) and move along the sliding groove (121).

10. A live-line working system, characterized in that, The device includes a live press, a control system, and a pipe clamping device as described in any one of claims 1-9. The external fixing component (100) is connected to the live press, and the pipe can be clamped between a plurality of the clamping parts (210). The control system is communicatively connected to the drive component (300) and can control the working state of the drive component (300).

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