Oil field lining pipe pulling-out speed regulation device

Abstract

An embodiment of the utility model provides an oil field lining pipe pulling-out speed regulating device, which relates to the technical field of oil field construction and comprises a fixing frame, a first sliding frame is arranged at the upper end of the fixing frame, and a pipe pulling ring is movably mounted on one side of the first sliding frame. The lower end of the first sliding frame is movably provided with an end cap and a suspension head which are used for fixing the end of the lining pipe for hoisting, the lower end of the suspension head penetrates through a hoisting rope to be installed, the hoisting rope pulls the suspension head to penetrate through the middle of the pipe pulling ring to be installed, and when the oil field lining pipe needs to be pulled out, the end cap penetrates through the interior of the pipe pulling ring firstly, and then the hoisting rope pulls the suspension head to penetrate through the middle of the pipe pulling ring. Then the end cap is fixed to the end of the lining pipe, then the lifting rope drives the hanging head to move upwards, the lining pipe is driven to be lifted upwards and pulled out, after the lining pipe is driven to be lifted by a certain distance, the lining pipe penetrates through the interior of the pipe pulling ring, and then the lining pipe is fixed through the moving part and the clamping part; and then the lining pipe arranged inside is pushed to move upwards.

Description

Technical Field

[0001] This utility model relates to the field of oilfield construction technology, and in particular to a speed regulating device for pulling out oilfield inner liner pipes. Background Technology

[0002] The inner liner is primarily used to protect the main pipeline, its main function being to increase the pipeline's corrosion resistance and extend its service life. In various industrial applications, such as chemical engineering, oil extraction, and wastewater treatment, the inside of the pipeline is subject to erosion by various chemical media, fluids, or wastewater, leading to corrosion and wear of the pipeline's inner wall. During oilfield development, the installation and removal of the inner liner are common operational steps. Traditional methods of removing the inner liner typically rely on simple mechanical lifting or manual operation, which suffers from low efficiency, high labor intensity, and difficulty in precisely controlling the removal speed.

[0003] When dealing with long inner lining tubes, traditional methods are often limited by equipment capacity and operational precision, which can easily lead to a limited length of inner lining tube that can be pulled out. Slippage or loosening may occur during the pulling out process, and the pulling speed is difficult to adjust flexibly according to actual construction needs, affecting work efficiency and safety. Utility Model Content

[0004] The purpose of this invention is to provide a speed-regulating device for pulling out oilfield inner liner pipes, which can avoid the problem of limited pulling-out length of inner liner pipes.

[0005] This utility model provides a speed regulating device for pulling out oilfield inner liner pipes, comprising:

[0006] A fixed frame, wherein a first sliding frame is provided at the upper end of the fixed frame, and a tube-pulling ring is movably installed on one side of the first sliding frame, and the upper end of the tube-pulling ring is installed and limited by a second sliding frame;

[0007] The first sliding frame has an end cap and a suspension head movably mounted on its lower end for fixing the end of the inner liner tube for lifting. The lower end of the suspension head is installed through a lifting rope, and the lifting rope pulls the suspension head through the middle of the tube pulling ring.

[0008] Preferably, the inner cavity of the tube-pulling ring is provided with a clamping part and a moving part, and the moving part and the clamping part are evenly and alternately arranged in the inner cavity opened on the side of the tube-pulling ring.

[0009] Preferably, the upper end of the tube-pulling ring is fixedly connected to a positioning bracket by bolts, and the positioning bracket is moved and positioned by a first displacement part fixedly installed at the upper end.

[0010] Preferably, the second sliding frame includes a drive frame mounted on the upper end of the fixed frame, the first shifting part is movably mounted on the upper end of the frame body in the middle of the drive frame and is driven by a drive shaft mounted on one side, and both the first sliding frame and the second sliding frame are driven by a drive device provided on one side.

[0011] Preferably, a manual threaded rod is threaded onto the lower end of the end cap, the manual threaded rod being threaded through the end cap for installation, the upper end of the lifting rope being rotated and wound onto one side of the winding box, and a second displacement part being movably installed on the upper end of the winding box via a bearing, the second displacement part being movably engaged in the middle of the first sliding frame.

[0012] Preferably, the first sliding frame and the second sliding frame are respectively installed on the upper and lower sides of the fixed frame, and are locked inside the frame of the fixed frame by internally movable wheels.

[0013] Preferably, the clamping part includes a clamping wheel for clamping and positioning the oilfield inner liner pipe. The clamping wheel is movably mounted inside the first movable bracket via a bearing. A telescopic screw is fixedly mounted on one side of the first movable bracket. A telescopic gear is installed through the upper end of the telescopic screw. The telescopic gear has an internal thread and is threadedly connected to the telescopic screw.

[0014] Preferably, the telescopic gear meshes with the drive gear ring at the lower end, and the drive gear ring and the telescopic gear are mounted and positioned by bearings on both sides.

[0015] Preferably, the telescopic screw has limit grooves on both its upper and lower sides, which match the limit buttons provided on the outside of the tube puller ring.

[0016] Preferably, the moving part includes a drive wheel for pushing and pulling the inner liner tube. The drive wheel is installed inside the second moving bracket and is connected to the rotation drive part through the second moving bracket. The other side of the second moving bracket is connected to the cylinder through the tube pulling ring and the cylinder is fixedly installed outside the tube pulling ring.

[0017] This utility model provides a speed-regulating device for pulling out an oilfield inner liner. When it is necessary to pull out the oilfield inner liner, the end cap is first passed through the inside of the pulling ring, and then the end cap is fixed to the end of the inner liner. Then, the lifting rope drives the suspension head to move upward, which lifts the inner liner upward and pulls it out. After the inner liner is lifted a certain distance, it passes through the inside of the pulling ring. Then, the moving part and the clamping part fix the inner liner, thereby pushing the inner liner inside to move upward to assist in the pulling out. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0020] Figure 2 This is a schematic diagram of the second sliding frame structure according to an embodiment of the present utility model.

[0021] Figure 3 This is a schematic diagram of the installation structure of the tube puller ring and end cap according to an embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the end cap mounting structure according to an embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the tube-pulling ring structure according to an embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the clamping part structure according to an embodiment of the present utility model.

[0025] Figure 7 This is a schematic diagram of the moving part structure according to an embodiment of the present utility model.

[0026] Figure Descriptions: 100, Fixed frame; 200, First sliding frame; 300, Second sliding frame; 310, Drive frame; 320, Drive shaft; 330, First shifting part; 400, Drive device; 500, Tube puller ring; 510, Positioning bracket; 600, End cap; 610, Suspension head; 620, Manual threaded rod; 630, Lifting rope; 640, Winding box; 650, Second shifting part; 700, Moving part; 710, Second moving bracket; 720, Drive wheel; 730, Rotation drive part; 740, Cylinder; 800, Clamping part; 810, Drive gear ring; 820, Clamping wheel; 830, First moving bracket; 840, Telescopic screw; 850, Telescopic gear. Detailed Implementation

[0027] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0028] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model 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. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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, an electrical connection, or a communication 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 embodiment of the invention according to the specific circumstances.

[0031] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0032] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of an oilfield liner pull-out speed regulating device.

[0033] like Figures 1-7As shown, this utility model embodiment provides an oilfield inner liner tube extraction speed adjustment device, including a fixed frame 100 for installation near the wellhead for support. The upper end of the fixed frame 100 is provided with a first sliding frame 200 for assisting in the extraction of the inner liner tube. A tube extraction ring 500 for extracting the inner liner tube is movably installed on one side of the first sliding frame 200. The upper end of the tube extraction ring 500 is installed and limited by a second sliding frame 300.

[0034] The lower end of the first sliding frame 200 is movably mounted with an end cap 600 for fixing the end of the inner liner tube for lifting and a suspension head 610 for lifting the end cap 600. The lower end of the suspension head 610 is installed through a lifting rope 630 for lifting the suspension head 610. The lifting rope 630 pulls the suspension head 610 through the middle of the tube puller ring 500.

[0035] The inner cavity of the pipe-pulling ring 500 is provided with a clamping part 800 for clamping and positioning the oilfield inner liner pipe and a moving part 700 for pushing the oilfield inner liner pipe to move. The moving part 700 and the clamping part 800 are evenly and alternately arranged in the inner cavity opened on the side of the pipe-pulling ring 500.

[0036] When it is necessary to pull out the inner liner of the oilfield, first pass the end cap 600 through the inside of the pull ring 500, then fix the end cap 600 to the end of the inner liner, then the lifting rope 630 drives the suspension head 610 to move upward, thereby lifting the inner liner upward and pulling it out. After the inner liner is lifted a certain distance, it passes through the inside of the pull ring 500. Then, the moving part 700 and the clamping part 800 fix the inner liner, thereby pushing the inner liner installed inside to move upward to assist in the pulling out.

[0037] The upper end of the tube-pulling ring 500 is fixedly connected to a positioning bracket 510 by bolts. The positioning bracket 510 is moved and positioned by the first displacement part 330 fixedly installed at the upper end, which facilitates the installation and fastening of the tube-pulling ring 500. The first displacement part 330 can be moved by the motor and wheels at the upper end of the first displacement part 330, thereby adjusting the position of the tube-pulling ring 500.

[0038] The second sliding frame 300 includes a drive frame 310 mounted on the upper end of the fixed frame 100. The first shifting part 330 is movably mounted on the upper end of the frame body provided in the middle of the drive frame 310 and is driven by a drive shaft 320 mounted on one side. The first sliding frame 200 and the second sliding frame 300 are both driven by a drive device 400 provided on one side. The drive frame 310 drives the first sliding frame 200 and the second sliding frame 300 to move, thereby adjusting the relative position of the first sliding frame 200 and the second sliding frame 300. This makes it easier to lift the inner liner tube and move it to one side, making it easier to pull the inner liner tube upward and avoiding obstruction that affects use.

[0039] The drive device 400 is composed of a drive motor, a reducer, a drive sprocket and a chain. The sprocket is fixedly connected to the drive shaft 320, which facilitates the auxiliary movement of the first sliding frame 200 and the second sliding frame 300.

[0040] The lower end of the end cap 600 is threaded with a manual threaded rod 620 for fixing the end of the inner liner tube. The manual threaded rod 620 is threaded through the end cap 600 for installation. The upper end of the lifting rope 630 is rotated and wound on one side of the winding box 640, and one side can be connected to the output end of the drive motor. The upper end of the winding box 640 is movably mounted with a second displacement part 650 through a bearing. The second displacement part 650 is movably locked in the middle of the first sliding frame 200. The drive motor and the winding box 640 drive the lifting rope 630 to wind up, thereby driving the lower end cap 600 to be lifted upwards. This facilitates combined use and has a large height adjustment range.

[0041] The first sliding frame 200 and the second sliding frame 300 are respectively installed on the upper and lower sides of the fixed frame 100, and are locked inside the frame of the fixed frame 100 by internally movable wheels to avoid movement obstruction and facilitate combined use.

[0042] The clamping part 800 includes a clamping wheel 820 for clamping and positioning the oilfield inner liner pipe. The clamping wheel 820 is movably mounted inside the first movable support 830 via bearings. A telescopic screw 840 for pushing the first movable support 830 to move is fixedly mounted on one side of the first movable support 830. A telescopic gear 850 for driving the internal telescopic screw 840 to move is installed through the upper end of the telescopic screw 840. The telescopic gear 850 has an internal thread and is threadedly connected to the telescopic screw 840. The telescopic gear 850 meshes with a drive gear ring 810 at its lower end for transmission. The ring 810 and the telescopic gear 850 are installed and positioned by bearings on both sides. A set of drive gears is meshed on the upper end of the drive ring 810. The output end of the drive gears is connected to the drive motor to drive the drive ring 810. The drive gears drive the drive ring 810 to rotate, and the telescopic gear 850 meshed on the upper end rotates, which drives the telescopic screw 840 installed with internal threads to move. This can then synchronously drive several sets of clamping parts 800 to retract synchronously. The clamping wheel 820 at the end clamps the inner liner tube and positions it to prevent shaking, displacement and misalignment, which would affect the extraction speed.

[0043] Limiting grooves are provided on both the upper and lower sides of the telescopic screw 840, and they match the limiting buttons set on the outside of the tube puller ring 500 to prevent the telescopic screw 840 from rotating when it moves, which would affect the positioning of the end clamping wheel 820.

[0044] The moving part 700 includes a drive wheel 720 for pushing and pulling the inner liner tube. The drive wheel 720 is installed inside the second moving bracket 710 and passes through the second moving bracket 710 to connect with the rotary drive part 730. The rotary drive part 730 consists of a drive motor and a reducer. The other side of the second moving bracket 710 passes through the tube pulling ring 500 and is connected to the cylinder 740. The cylinder 740 is fixedly installed outside the tube pulling ring 500. The cylinder 740 can push the second moving bracket 710 to move inward, so that the internal drive wheel 720 is in close contact with the inner liner tube. Then, the externally provided rotary drive part 730 drives it to rotate, which helps to pull out the inner liner tube. This is convenient to use and does not limit the pulling length. The pulling speed of the inner liner tube is controlled by controlling the speed of the drive motor of the rotary drive part 730, which can be adjusted according to the construction situation.

[0045] The working principle of an oilfield inner liner pulling speed regulating device is as follows: When it is necessary to pull out the oilfield inner liner, the end cap 600 is first passed through the inside of the pulling ring 500, and then the end cap 600 is fixed to the end of the inner liner. Then, the lifting rope 630 drives the suspension head 610 to move upward, which lifts the inner liner upward and pulls it out. After the inner liner is lifted a certain distance, it passes through the inside of the pulling ring 500. Then, the moving part 700 and the clamping part 800 fix the inner liner, thereby pushing the inner liner installed inside to move upward to assist in the pulling out.

[0046] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A speed regulating device for pulling out oilfield inner liner pipes, characterized in that, Include: The upper end of the fixed frame is provided with a first sliding frame, one side of the first sliding frame is movably mounted with a pipe pulling ring, and the upper end of the pipe pulling ring is installed and limited by a second sliding frame; The lower end of the first sliding frame movably mounts an end cap for fixing the end of the liner pipe for hoisting and a suspension head, the lower end of the suspension head is installed through a hoisting rope, and the hoisting rope pulls the suspension head through the middle part of the pipe pulling ring.

2. The device of claim 1, wherein, The inner cavity of the pipe pulling ring is provided with a clamping part and a moving part, and the moving part and the clamping part are evenly staggered and arranged in the inner cavity opened on the side of the pipe pulling ring.

3. A speed control device for pulling out a liner pipe in an oil field according to claim 2, wherein The upper end of the pipe pulling ring is fixedly connected with a positioning support through bolts, and the positioning support is movably positioned through a first displacement part fixedly installed at the upper end.

4. The device of claim 3, wherein, The second sliding frame includes a driving frame installed on the upper end of the fixed frame, the first displacement part is movably installed on the upper end of the frame body arranged in the middle part of the driving frame, and is driven through the driving shaft installed on one side, and the first sliding frame and the second sliding frame are driven through the driving device arranged on one side.

5. A speed control device for pulling out a liner pipe in an oil field according to claim 4, wherein The lower end of the end cap is threadedly installed with a manual threaded rod, the manual threaded rod is installed in thread through the end cap, the upper end of the hoisting rope is rotationally wound on one side of a winding box, the upper end of the winding box is movably installed with a second displacement part through a bearing, and the second displacement part is movably clamped in the middle part of the first sliding frame.

6. A speed control device for pulling out a liner pipe in an oil field according to claim 5, wherein The first sliding frame and the second sliding frame are respectively installed on the upper and lower sides of the fixed frame, and are clamped in the frame body of the fixed frame through the movable wheels movably installed inside.

7. A speed control device for pulling out a liner pipe in an oil field according to claim 6, wherein The clamping part includes a clamping wheel for clamping and positioning the oil field liner pipe, the clamping wheel is movably installed in the first moving support through a bearing, one side of the first moving support is fixedly installed with a telescopic screw rod, the upper end of the telescopic screw rod is installed with a telescopic gear, the inside of the telescopic gear is provided with internal threads, and is in threaded connection with the telescopic screw rod.

8. A speed control device for pulling out a liner pipe in an oil field according to claim 7, wherein The telescopic gear is in meshing transmission with the driving gear ring arranged at the lower end, and the driving gear ring and the telescopic gear are installed and positioned through bearings on both sides.

9. A speed control device for pulling out a liner pipe in an oil field according to claim 8, wherein The upper and lower sides of the telescopic screw rod are both provided with limiting grooves matched with the limiting buttons arranged outside the pipe pulling ring.

10. A speed control device for pulling out a liner pipe in an oil field according to claim 9, wherein The moving part includes a driving wheel for pushing and pulling the liner pipe, the driving wheel is installed in the second moving support, the driving wheel is connected with a rotary driving part through the second moving support, the other side of the second moving support is connected with a gas cylinder through the pipe pulling ring, and the gas cylinder is fixedly installed outside the pipe pulling ring.

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