A pipe string threaded butt-up righting auxiliary device

Abstract

The application relates to the technical field of oil and gas exploitation, in particular to a pipe string threaded butt joint righting auxiliary device, which comprises a base, a supporting assembly and a hoisting assembly, the supporting assembly comprises a stand column and a stand column rotating mechanism, the stand column rotating mechanism is fixedly installed on the base, the stand column is vertically connected to the stand column rotating mechanism, and the stand column rotating mechanism can drive the stand column to rotate by 360 degrees in the horizontal direction. The application can realize automatic righting and centering when the pipe string is threaded butt jointed, has the advantages of simple structure, convenient disassembly and assembly and convenient use, can make the drilling operation personnel operate more safely and quickly when the threaded butt joint of drill pipes, drill strings, casings and oil pipes and the like is carried out, can guarantee that the threads of the pipe string will not be damaged, compared with the existing manual righting butt joint, can significantly improve the drilling operation efficiency, improve the success rate of one-time butt joint, eliminate the safety risk of the drilling operation personnel and solve the righting and centering problem during the threaded connection of heavy pipe strings.

Description

Technical Field

[0001] This application relates to the field of oil and gas extraction technology, and in particular to an auxiliary device for straightening threaded connections of tubing. Background Technology

[0002] In oil and gas drilling operations, the tripping of drill pipes, casing, and tubing is frequently involved in drilling and exploration. These pipes are connected by threads, and their lengths typically range from ten to thirty meters, with weights ranging from half a ton to several tons. During threaded connections, due to the long length, heavy weight, and high operational difficulty of the pipes, thread collisions and scratches often occur. Minor issues may lead to thread adhesion at the pipe connection, while severe issues may result in the pipes being scrapped, causing economic losses and operational delays.

[0003] Currently, on-site operators mainly rely on manual methods to align and connect the pipes. However, with pipes weighing several tons, manual alignment is difficult to achieve accurately and effectively, resulting in low work efficiency and serious safety hazards. Operators are prone to property damage and personal injury due to operational errors. In addition, the drilling platform site environment is complex and variable, with strong vibrations, and the pipelines are intricate and need to strictly meet explosion-proof requirements. Therefore, the equipment must be as simple in structure, reliable in operation, convenient in operation, and durable as possible. Summary of the Invention

[0004] To address the aforementioned issues, this application presents a pipe string thread connection alignment auxiliary device. This device effectively assists on-site operators in achieving rapid and accurate thread connection during the tripping of drill pipes, drill strings, casing, and tubing, significantly improving operational efficiency, reducing operational risks, and fundamentally solving the problem of alignment and centering during pipe string thread connections. It facilitates the connection and jointing of various pipe materials, especially ultra-long and ultra-heavy pipe materials, thereby improving operational efficiency and safety.

[0005] Based on the above, this application provides an auxiliary device for straightening threaded connections of a pipe column.

[0006] Specifically, this application is achieved through the following technical solution:

[0007] A pipe thread connection straightening auxiliary device includes a base, a support assembly, and a hoisting assembly.

[0008] The support assembly includes a column and a column rotation mechanism. The column rotation mechanism is fixedly installed on the base. The column is vertically connected to the column rotation mechanism. The column rotation mechanism can drive the column to rotate 360 ​​degrees in the horizontal direction.

[0009] The hoisting assembly includes a horizontal boom mounting frame, a horizontal boom, an extension rod, and a coupling device. The horizontal boom mounting frame is fixedly connected to one end of the column. The horizontal boom passes through the horizontal boom mounting frame and is rotatably connected to it. One end of the horizontal boom is movably connected to one end of the traction member. The other end of the horizontal boom is rotatably connected to one end of the extension rod. The other end of the extension rod is connected to the coupling device. The other end of the traction member is movably connected to the column.

[0010] Furthermore, at least two lever arm limiting structures are provided at one end of the cross arm connecting to the traction member, and one end of the traction member is movably connected to any one of the lever arm limiting structures.

[0011] Furthermore, the support block is fixedly connected to the outer wall of the column, and the support block is provided with at least two traction member lugs, the other end of which is movably connected to any one of the traction member lugs.

[0012] Furthermore, the crossarm and the extension rod are rotatably connected via an extension rod rotation mechanism.

[0013] Furthermore, one end of the inclined arm is connected to one end of the extension rod, and the other end of the inclined arm is connected to the outer wall of the buckle.

[0014] Furthermore, the fastener is an openable hollow structure with a first end and a second end, the interior of the first end being trumpet-shaped and the interior of the second end being cylindrical to fit the tubular column.

[0015] Furthermore, the traction component is a balancer.

[0016] Furthermore, the crossarm mounting bracket is provided with a limit block for limiting the crossarm.

[0017] Furthermore, a latch is provided on the openable side of the fastener, the latch being used to lock the fastener; and / or,

[0018] The outer wall of the fastener is provided with a handrail.

[0019] Furthermore, the outer wall of the fastener is provided with two fastener lifting lugs. One fastener lifting lug is fixedly connected to or hinged to one end of the inclined arm, and the other fastener lifting lug is fixedly connected to or hinged to one end of the extension rod.

[0020] The beneficial effects of this application are as follows: This device features a purely mechanical coupling device and robotic arm, enabling automatic alignment and centering during pipe string thread connection. It has a simple structure, is easy to assemble and disassemble, and is convenient to use. It can be flexibly placed on the drilling platform for on-site use, allowing drilling personnel to operate more safely and quickly when connecting drill pipes, drill strings, casing, tubing, etc. It ensures that the pipe strings will not be damaged by impacts. Compared with existing manual alignment and connection methods, it significantly improves drilling efficiency, increases the success rate of first-time alignment, eliminates safety risks for drilling personnel, and solves the problem of alignment and centering during heavy pipe string thread connections. Simultaneously, it can adaptively adjust its posture according to the weight of the load, allowing for easy installation and unfolding during use, and folding for storage when not in use to save space and facilitate transportation. In summary, this device effectively assists operators in achieving fast and accurate thread connection during the tripping of heavy pipe strings, reducing the labor intensity of drilling personnel, significantly improving work efficiency, reducing operational risks, enhancing drilling safety, and extending the service life of drilling tools. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this application and these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of a pipe thread alignment auxiliary device provided in one embodiment of this application.

[0023] In the picture:

[0024] 1. Base; 2. Column rotation mechanism; 3. Column; 4. Traction component; 401. Support block; 402. Traction component lifting lug; 5. Cross arm; 501. Lever arm limiting structure; 6. Cross arm mounting bracket; 601. Limiting block; 602. Rotating shaft; 7. Extension rod rotation mechanism; 8. Extension rod; 9. Diagonal arm; 10. Buckle; 101. Buckle lifting lug; 102. Hinge; 103. Lock; 104. Handrail. Detailed Implementation

[0025] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the application and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present application, not the entire structure.

[0026] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] In this application, unless otherwise expressly 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 being 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 being 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.

[0028] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used solely for ease of description and simplification of operation, 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 this application. In the description of this application, unless otherwise stated, "a plurality of" means two or more. Furthermore, the terms "first" and "second" are merely used for descriptive distinction and have no special meaning.

[0029] like Figure 1 As shown in the figure, this embodiment provides a pipe thread connection straightening auxiliary device, including a base, a support assembly, and a hoisting assembly. The bottom of the base can be fixedly installed on a drilling platform or other fixed plane, and the upper surface of the base can be provided with several lugs to facilitate hoisting during transportation and installation. The support assembly includes a column and a column rotation mechanism. The column rotation mechanism can be fixedly installed on the base by screws or mounting flanges. The column can be vertically fixedly connected to the column rotation mechanism, or it can be detachably connected to the column rotation mechanism. The column rotation mechanism can drive the column to rotate 360 ​​degrees around its own axis. In this embodiment, the column rotation mechanism is a rotary motor, and the output shaft of the rotary motor is fixedly connected to the column. In another embodiment, the column rotation mechanism can be a bearing or other device that enables the column to rotate 360 ​​degrees.

[0030] Specifically, the hoisting assembly in this embodiment includes a horizontal boom mounting frame, a horizontal boom, an extension rod, and a coupling device. The mounting surface of the horizontal boom mounting frame, which connects to the column, has four through holes circumferentially. Bolts and nuts that fit into these through holes can be used to fix the horizontal boom mounting frame to the column. The horizontal boom passes through the horizontal boom mounting frame. Symmetrical shaft holes are provided on both sides of the horizontal boom mounting frame. Rotating shafts that fit into these shaft holes pass through the horizontal boom mounting frame and the horizontal boom in sequence, allowing the horizontal boom mounting frame and the horizontal boom to be rotatably connected. The horizontal boom can swing up and down around the rotating shaft according to the change in the force applied to its two ends. One end of the horizontal boom is detachably connected to one end of the traction component, and the other end is rotatably connected to one end of the extension rod via an extension rod rotation mechanism. The other end of the extension rod is connected to the coupling device, and the other end of the traction component is movably connected to one side of the outer wall of the column. Specifically, the extension rod rotation mechanism can be a rotary motor or a bearing, allowing the extension rod to rotate 360 ​​degrees. Taking a rotary motor as an example, the rotary motor can be fixedly connected to one end of the cross arm through a connector. The output shaft of the rotary motor is fixedly connected to one end of the extension rod in a vertical direction. The length of the extension rod is less than the length of the cross arm extending out of the cross arm mounting bracket, so that the extension rod can rotate 360 ​​degrees in the horizontal direction.

[0031] In this embodiment, the traction component is a balancer, which can prevent safety hazards caused by the unbalanced force at both ends of the crossarm beam during operation. Three lever arm limiting structures are provided at the end of the crossarm beam connected to the balancer. These lever arm limiting structures can be mounting holes, allowing one end of the balancer to be detachably connected to one of the mounting holes depending on the required traction force. In other embodiments, the lever arm limiting structures can be set to two or more depending on the specific application scenario. The balancer can adjust its locking force according to the weight of the opposite end of the crossarm beam connected to the balancer to achieve a balanced state between the front and rear of the crossarm beam. A limiting block is provided within the crossarm beam mounting bracket to limit the angle range of the crossarm beam's vertical swing.

[0032] In some embodiments of the above implementation, a support block is welded to the outer wall of the column near the balancer. The support block is welded or integrally formed with three traction lugs. To reduce the protruding length of the support block, the three traction lugs are arranged on the same plane, perpendicular to the crossarm. A balancer can be added according to the required traction force. One end of each balancer is detachably connected to a traction lug, and the other end is detachably connected to the same lever arm limiting structure, i.e., the mounting hole. In other embodiments, two or more traction lugs may be provided.

[0033] To better connect the coupling, a slanted arm is provided at one end of the extension rod. One end of the slanted arm is hinged to the extension rod, and the other end is connected to the outer wall of the coupling via bolts and nuts. Mounting portions are provided at both ends of the slanted arm and on one side of the extension rod. Each mounting portion has a through hole adapted to the bolt. Simultaneously, the outer wall of the coupling is also provided with coupling lugs for connecting the coupling to the extension rod via bolts and nuts or hinges. Preferably, two coupling lugs are arranged on the outer wall of the coupling, located at the upper and middle parts of the coupling respectively. In another embodiment, both ends of the slanted arm are fixedly connected to the extension rod and the outer wall of the coupling via welding or other methods.

[0034] To enhance structural stability, such as Figure 1 As shown, a reinforcing rod parallel to the crossarm can be added to the lower end of the crossarm. One end of the reinforcing rod is rotatably connected to the crossarm mounting bracket, and the other end is rotatably connected to the extension rod rotation mechanism.

[0035] The coupling device in this embodiment is an openable hollow structure. The internal material of the coupling device is engineering plastic, and preferably, a buffer pad can be laid inside the coupling device. The coupling device has a first end and a second end. The interior of the first end is trumpet-shaped, and the interior of the second end is cylindrical to fit the tubing. In use, the first end faces upwards and the second end faces downwards. The first end can serve as a guide to facilitate the entry of the male end of the tubing to be coupled, while the second end is fitted around the female end of the tubing below. A locking buckle is provided on the openable side of the coupling device to lock it in place. A handle is also provided on the outer wall of the coupling device for easy movement or fixation during operation. To reduce the weight of the coupling device and facilitate observation of the tubing connection inside, several through holes can be formed on the outer wall of the coupling device.

[0036] The working principle of this application is as follows: When threaded connection of pipe columns is required, this device is first fixedly installed in a suitable position using the base. Then, by rotating the column rotation mechanism (moving the horizontal arm up and down) and the extension rod rotation mechanism (rotating the extension rod horizontally), the coupling device is moved to the vicinity of the female end of the pipe column to be connected. The operator, holding the handle, places the coupling device in a semi-open state onto the female end of the pipe column, then closes the coupling device and locks the latch. Finally, the pipe column to be connected is hoisted. Position the tubing vertically and lower the male end of the tubing towards the center of the first end of the coupling device until the male end of the tubing enters the interior of the second end of the coupling device. Once the threads of the male end of the upper tubing are fully inserted into the female end of the lower tubing, manually open the latch, hold the handle to open the coupling device, move the coupling device backward, close the coupling device and lock the latch. The coupling device and extension rod are folded up through the extension rod rotation mechanism. Remove the base to retract the entire unit. When using it again, remove it and secure the base to continue using it.

[0037] The above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A pipe thread alignment auxiliary device, characterized in that, Includes base, support components, and hoisting components. The support assembly includes a column and a column rotation mechanism. The column rotation mechanism is mounted on the base, and the column is vertically connected to the column rotation mechanism. The column rotation mechanism can drive the column to rotate 360 ​​degrees in the horizontal direction. The hoisting assembly includes a horizontal boom mounting frame, a horizontal boom, an extension rod, a coupling device, and a traction component. The horizontal boom mounting frame is fixedly connected to one end of the column. The horizontal boom passes through the horizontal boom mounting frame and is rotatably connected to it. One end of the horizontal boom is movably connected to one end of the traction component. The other end of the horizontal boom is rotatably connected to one end of the extension rod. The other end of the extension rod is connected to the coupling device. The other end of the traction component is movably connected to the column.

2. The auxiliary device for straightening threaded connections of a pipe column according to claim 1, characterized in that, The crossarm is provided with at least two lever arm limiting structures at one end connected to the traction member, and one end of the traction member is movably connected to any one of the lever arm limiting structures.

3. The auxiliary device for straightening threaded connections of a pipe column according to claim 1, characterized in that, It also includes a support block, which is fixedly connected to the outer wall of the column. The support block is provided with at least two traction member lugs, and the other end of the traction member is movably connected to any one of the traction member lugs.

4. The auxiliary device for straightening threaded connections of a pipe column according to claim 1, characterized in that, The crossarm and the extension rod are rotatably connected via an extension rod rotation mechanism.

5. The auxiliary device for straightening threaded connections of a pipe column according to claim 1, characterized in that, It also includes a slanted arm, one end of which is connected to one end of the extension rod, and the other end of which is connected to the outer wall of the buckle.

6. The auxiliary device for straightening threaded connections of a pipe column according to claim 1, characterized in that, The fastener is an openable hollow structure with a first end and a second end. The interior of the first end is trumpet-shaped, and the interior of the second end is cylindrical to fit the tubular column.

7. The auxiliary device for straightening threaded connections of a pipe column according to claim 1, characterized in that, The traction component is a balancer.

8. The auxiliary device for straightening threaded connections of a pipe column according to claim 1, characterized in that, The crossarm mounting bracket is equipped with a limit block for limiting the position of the crossarm.

9. The auxiliary device for straightening threaded connections of a pipe column according to claim 1, characterized in that, The latching device has a locking buckle on its openable side, which is used to lock the latching device; and / or, The outer wall of the fastener is provided with a handrail.

10. The auxiliary device for straightening threaded connections of a pipe column according to claim 5, characterized in that, The outer wall of the coupling device is provided with two coupling device lifting lugs. One coupling device lifting lug is fixedly connected to or hinged to one end of the inclined arm rod, and the other coupling device lifting lug is fixedly connected to or hinged to one end of the extension rod.

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