Sliding shoe structure and remote control under-pressure operation system

Abstract

The utility model relates to the technical field of oil gas drilling and production equipment, in particular to a sliding shoe structure and a remote control under-pressure operation system, the sliding shoe structure comprises a trolley main body, a trolley hopper is installed on the trolley main body and used for placing a pipe column, the sliding shoe structure further comprises a pipe pressing device, and the pipe pressing device is installed on the trolley main body and used for pressing the pipe column. The pipe pressing device comprises a movable frame, the movable frame is hinged to the trolley body, a pressing rod is hinged to the top of the movable frame, the movable frame can move in the vertical direction, the movable frame moves upwards to drive the pressing rod to press downwards, the movable frame moves downwards to drive the pressing rod to lift upwards, and the pressing rod is used for pressing a pipe column in the trolley hopper. The sliding shoe is simple and reliable in structure, simplifies the fixing and releasing process of the tubular column in the car hopper, greatly reduces the risk that the tubular column falls off in the transportation process, improves the construction efficiency, enhances the safety of the whole operation process, and reduces potential accidents.

Description

Technical Field

[0001] The utility model relates to the technical field of oil and gas drilling equipment, in particular to a sliding shoe structure and a remote-controlled pressure-operating system. Background Art

[0002] Well repair is an important part of the construction process of oil and gas exploration and development. The pressure operation system is an advanced downhole operation method that keeps the wellbore in a certain pressure state and disassembles and installs pipes without killing the well or releasing the pressure. Pressure operation can protect and maintain the original production capacity of the formation, reduce the number of production-increasing measures such as acid fracturing, and provide a good foundation for the long-term development and stable production of oil and gas fields.

[0003] When the pressure operation system is working, the transportation of the pipe string is an indispensable part of the pressure operation. The commonly used pipe string transportation tool at present is to use a hydraulic catwalk to transport the pipe string. For example, the Chinese utility model patent with publication number CN217712460U discloses a safe and efficient hydraulic catwalk, which uses the push pipe assembly (slip shoe) and the transverse chain transmission assembly to push the pipe string and move it on the transportation track at the same time. However, when the pipe string is placed on the push pipe assembly (slip shoe) provided by it, the push pipe assembly is difficult to fix the pipe string, and the pipe string may fall off from the push pipe assembly (slip shoe) during transportation, which affects the construction efficiency and poses certain safety risks. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art that after a pipe string is placed in a sliding shoe, the pipe string may fall off from the sliding shoe during transportation, thereby affecting the construction efficiency, and provides a sliding shoe structure and a remotely controlled pressure operation system.

[0005] In the first aspect, the utility model provides a sliding shoe structure, including a trolley body, on which a bucket is installed, and the bucket is used to place pipe columns. It also includes a pipe pressing device, which is installed on the trolley body. The pipe pressing device includes a movable frame, which is hinged to the trolley body, and the top of the movable frame is hinged to a pressure rod. The movable frame can move in a vertical direction, and the upward movement of the movable frame drives the pressure rod to be pressed down, and the downward movement of the movable frame drives the pressure rod to be lifted up, and the pressure rod is used to press the pipe column in the bucket.

[0006] The sliding shoe structure provided by the utility model has the advantages that when one end of the pipe column is placed in the truck bed, the movable frame moves up and drives the pressure rod to press down, which can effectively fix the pipe column in the truck bed, and the pressure of the pressure rod on the pipe column can offset the vibration and shaking during transportation, so that the pipe column remains stable in the truck bed and prevents the pipe column from falling out of the truck bed; when the pipe column is transported to the right place, for example, when it is necessary to move the pipe column out of the truck bed, the movable frame moves down and drives the pressure rod to lift up, so as to unlock the pipe column in the truck bed and conveniently take out the pipe column.

[0007] The sliding shoe has a simple and reliable structure, simplifies the fixing and releasing process of the pipe column in the truck bed, greatly reduces the risk of the pipe column falling off during transportation, improves construction efficiency, enhances the safety of the entire operation process, and reduces potential accident hazards.

[0008] Preferably, the pressure rod is provided with a first through hole and a second through hole, a first hinge seat is installed on the top of the trolley body, the pressure rod is hinged to the movable frame through the first through hole, and the pressure rod is hinged to the first hinge seat through the second through hole.

[0009] With this structural setting, the hinge point between the second through hole and the first hinge seat acts as a fulcrum, providing a fixed rotation center for the pressure rod. The movable frame is hinged with the first through hole, and can drive the pressure rod to swing up and down around the fulcrum to form a lever-like structure. By utilizing the lever principle, the movement amplitude of the pressure rod end is amplified, providing a larger pressure range and better control of the pipe column in the truck bed.

[0010] Preferably, a spring push rod assembly is installed on the top of the trolley body, and the spring push rod assembly includes an outer cylinder and an inner cylinder, the inner cylinder is inserted into the outer cylinder, the outer cylinder is fixedly connected to the trolley body, a strip hole is provided on the side wall of the outer cylinder, a baffle rod is fixedly installed on the outer wall of the inner cylinder, the baffle rod is located in the strip hole, a spring is arranged between the outer bottom wall of the inner cylinder and the inner bottom wall of the outer cylinder, the spring abuts against the outer bottom wall of the inner cylinder and the inner bottom wall of the outer cylinder, one end of the inner cylinder located outside the outer cylinder abuts against the pressure rod, and the spring push rod assembly is used to push the pressure rod.

[0011] With this structural arrangement, when the pressure rod is pressed down, the pressure rod contacts the end of the inner tube outside the outer tube and gradually presses down the inner tube, and the inner tube then compresses the spring. The entire spring push rod assembly acts as a buffer to prevent the pressure rod from directly contacting the pipe column and causing a bump on the outer wall of the pipe column. When the pressure rod is pressed down into place and the pipe column needs to be unlocked, the elasticity of the spring is released, and the inner tube pushes the pressure rod to help the pressure rod return to its initial position. The blocking rod is located in the strip hole and is restricted by the edge of the strip hole to prevent the inner tube from falling out of the outer tube.

[0012] Preferably, the inner cylinder further comprises a first roller, and a mounting groove is provided at one end of the inner cylinder outside the outer cylinder, the first roller is mounted in the mounting groove, and the first roller abuts against the pressure rod.

[0013] With this structural arrangement, the first roller is in direct contact with the pressure rod, which reduces the friction between the inner cylinder and the pressure rod, prevents the sharp corners of the inner cylinder from directly rubbing against the pressure rod, and increases the service life of the sliding shoe structure.

[0014] Preferably, the trolley body includes two transverse mounting plates and a vertical mounting frame, and the cart bucket is installed between the two transverse mounting plates; the mobile frame includes two vertical rods and a first pin shaft installed between the two vertical rods, and the first through hole is sleeved on the first pin shaft; the vertical rod is hinged to the vertical mounting frame through a connecting rod.

[0015] With this structural setting, the two horizontal mounting plates and the vertical mounting frame provide a more stable basic structure, ensuring that the truck bed is more stable during transportation; the vertical rod is hinged to the vertical mounting frame through a connecting rod, making the up and down movement of the mobile frame more flexible and the movement trajectory more accurate.

[0016] Preferably, a second roller is installed at the bottom of the transverse mounting plate.

[0017] With this structural arrangement, the second roller can contact the frame of the power catwalk, making it convenient for the trolley body to move on the power catwalk.

[0018] Preferably, a third roller is installed at one end of the vertical rod away from the first pin shaft, and after the pressure rod presses the pipe column, the third roller and the second roller are located in the same horizontal plane.

[0019] With this structural setting, when the pressure rod presses down to fix the pipe column in the truck bed, the third roller and the second roller are located in the same horizontal plane, and the third roller and the second roller are in contact with the frame of the power catwalk, so that the main body of the trolley moves more stably on the power catwalk, reducing the tilting or instability that may occur during the movement, and ensuring the stability of the entire sliding shoe structure during the movement.

[0020] Preferably, a sprocket fixing seat is installed at the bottom of the transverse mounting plate.

[0021] With this structural setting, by providing a sprocket fixing seat, it can be conveniently connected to the transmission chain of the power catwalk, so that the sliding shoe structure can be driven to move on the catwalk through the chain.

[0022] Preferably, a pipe pressing seat is installed at one end of the pressing rod away from the moving frame, and the pipe pressing seat is an arc-shaped structure, and the arc surface of the pipe pressing seat matches the arc of the outer surface of the pipe column.

[0023] With this structural setting, the arc surface of the pipe pressing seat matches the arc surface of the outer surface of the pipe column in the truck bucket, so that the pipe column can be better pressed by the pipe pressing seat to prevent the pipe column from escaping from the truck bucket.

[0024] In the second aspect, the utility model provides a remote-controlled pressure-operating system, including a pressure-operating machine, a pipe lifting device and a power catwalk, wherein the power catwalk is arranged on one side of the pressure-operating machine, the power catwalk is installed with the above-mentioned sliding shoe structure, the pipe lifting device is connected to the pressure-operating machine, the pipe lifting device is used to receive and deliver pipe strings between the power catwalk and the pressure-operating machine; the power catwalk is used to transport pipe strings; the pressure-operating machine is used to disassemble or install pipe strings in a wellbore under pressure.

[0025] The remote-controlled pressure-carrying operation system provided by the utility model adopts the sliding shoe structure provided by the utility model. The sliding shoe structure is simple and reliable, simplifies the fixing and releasing process of the pipe column in the vehicle bucket, greatly reduces the risk of the pipe column falling off during transportation, improves construction efficiency, enhances the safety of the entire operation process, and reduces potential accident hazards.

[0026] Compared with the prior art, the utility model has the following beneficial effects:

[0027] 1. The sliding shoe structure provided by the utility model, when one end of the pipe column is placed in the truck bed, the moving frame moves up to drive the pressure rod to press down, which can effectively fix the pipe column in the truck bed, and the pressure of the pressure rod on the pipe column can offset the vibration and shaking during transportation, so that the pipe column remains stable in the truck bed and prevents the pipe column from falling out of the truck bed; when the pipe column is transported to the place, for example, when the pipe column needs to be removed from the truck bed, the moving frame moves down to drive the pressure rod to lift up, thereby unlocking the pipe column in the truck bed, and the pipe column can be conveniently taken out.

[0028] 2. The sliding shoe structure provided by the utility model is simple and reliable, which simplifies the fixing and releasing process of the pipe column in the truck bed, greatly reduces the risk of the pipe column falling off during transportation, improves construction efficiency, enhances the safety of the entire operation process, and reduces potential accident hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The present invention is a schematic diagram of a sliding shoe structure provided by the utility model.

[0030] Figure 2 for Figure 1 main view.

[0031] Figure 3 for Figure 1 Left view of .

[0032] Figure 4 for Figure 1 Right view of .

[0033] Figure 5 for Figure 1 Schematic diagram of the structure in another direction.

[0034] Figure 6 This is a schematic diagram of the main structure of the car.

[0035] Figure 7 This is a schematic diagram of the pressure rod structure after the pressure pipe seat is installed.

[0036] Figure 8 It is a schematic diagram of the structure of the spring push rod assembly.

[0037] Markings in the figure:

[0038] 1-trolley body, 11-first hinged seat, 12-lateral mounting plate, 121-second roller, 122-sprocket fixing seat, 13-vertical mounting frame, 14-connecting rod, 21-moving frame, 211-vertical rod, 212-first pin shaft, 213-third roller, 22-pressure rod, 221-first through hole, 222-second through hole, 23-pressure pipe seat, 3-cargo bucket, 4-spring push rod assembly, 41-outer cylinder, 411-strip hole, 42-inner cylinder, 421-blocking rod, 422-mounting groove, 423-first roller, 43-spring. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below in conjunction with specific embodiments. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0040] Unless otherwise specified, in the description of the specific embodiments of the present utility model, the expression terms indicating the orientation or position relationship such as "upper", "lower", "left", "right", "center", "inside", "outside", etc. are all based on the expression of the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product / equipment / device of the utility model is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the utility model or simplifying the description in the specific embodiments, so that technicians can quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present utility model.

[0041] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the solution of the utility model.

[0042] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0043] In addition, in the description of the embodiments of the present invention, "several", "multiple" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0044] In addition, in the description of the technical solution of the utility model, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of two components.

[0045] Example 1

[0046] like Figure 1-Figure 4 As shown, this embodiment provides a sliding shoe structure, which can be installed on the transport track of the power catwalk and is used to transport pipe strings between the catwalk and the belt pressure working machine. The sliding shoe structure includes a trolley body 1, and the trolley body 1 is equipped with a bucket 3, and the bucket 3 is used to place the pipe string. Furthermore, the vertical section shape of the bucket 3 can be similar to the vertical section shape of the transport track of the power catwalk, for example, both are V-shaped structures, so that the pipe string to be transported is placed in the bucket 3 and is not easy to roll out of the bucket 3.

[0047] Further, such as Figure 6As shown, the vehicle body 1 includes two transverse mounting plates 12 and a vertical mounting frame 13. The vertical mounting frame 13 can be specifically as follows: Figure 6 The four plates shown in the figure form a plate-shaped structure; the transverse mounting plate 12 and the vertical mounting frame 13 are approximately perpendicular to form an L-shaped structure. The truck box 3 is installed between the two transverse mounting plates 12, for example, the two side edges of the truck box 3 can be respectively welded to the transverse mounting plates 12, and one side of the V-shaped truck box 3 can be welded to the vertical mounting frame 13.

[0048] Further, such as Figure 6 As shown, a second roller 121 is installed at the bottom of the transverse mounting plate 12. The second roller 121 can rotate freely relative to the transverse mounting plate 12, and one transverse mounting plate 12 can be installed with at least two second rollers 121, and the second rollers 121 can contact the frame of the power catwalk to facilitate the movement of the trolley body 1 on the power catwalk.

[0049] Further, such as Figure 6 As shown, a sprocket fixing seat 122 is installed at the bottom of the transverse mounting plate 12. For example, one transverse mounting plate 12 can be installed with a sprocket fixing seat 122. By setting the sprocket fixing seat 122, it can be conveniently connected to the transmission chain of the power catwalk, so that the sliding shoe structure can be driven to move on the catwalk through the chain.

[0050] The sliding shoe structure also includes a pipe pressing device, which is installed on the trolley body 1. The pipe pressing device includes a moving frame 21, which is hinged to the trolley body 1. The top of the moving frame 21 is hinged to a pressure rod 22. The moving frame 21 can move in a vertical direction. The upward movement of the moving frame 21 drives the pressure rod 22 to be pressed down, and the downward movement of the moving frame 21 drives the pressure rod 22 to be lifted up. The pressure rod 22 is used to press the pipe column in the bucket 3.

[0051] Specifically, Figure 5 As shown, the movable frame 21 may include two vertical rods 211 and a first pin shaft 212 installed between the two vertical rods 211. For example, the first pin shaft 212 is specifically located at the top of the vertical rod 211. The vertical rod 211 is hinged to the side plate of the vertical mounting frame 13 through the connecting rod 14, so that the vertical rod 211 can move up and down relative to the vertical mounting frame 13, thereby driving the entire movable frame 21 to move up and down.

[0052] Specifically, Figure 7As shown, the pressure rod 22 is provided with a first through hole 221 and a second through hole 222, and the first articulated seat 11 is installed on the top of the trolley body 1, for example, the first articulated seat 11 can be installed on the top of the vertical mounting frame 13; the pressure rod 22 is hinged to the mobile frame 21 through the first through hole 221, for example, a first pin 212 can be set to pass through the first through hole 221, that is, the first through hole 221 is sleeved on the first pin 212; the pressure rod 22 is hinged to the first articulated seat 11 through the second through hole 222. With this structural setting, the hinge point between the second through hole 222 and the first articulated seat 11 acts as a fulcrum, providing a fixed rotation center for the pressure rod 22, and the mobile frame 21 can drive the pressure rod 22 to swing up and down around the fulcrum to form a lever-like structure by being hinged with the first through hole 221. By using the principle of lever, the movement amplitude of the end of the pressure rod 22 is amplified, providing a larger pressure range, and better controlling the pipe column in the bucket 3.

[0053] Further, such as Figure 1-Figure 5 As shown, the end of the vertical rod 211 away from the first pin 212 (eg Figure 1 The third roller 213 is installed at the bottom of the middle vertical rod 211. After the vertical rod 211 moves upward to drive the pressure rod 22 to press the pipe column, the third roller 213 and the second roller 121 are located at the same horizontal plane. That is, at this time, the third roller 213 and the second roller 121 are both in contact with the frame of the power catwalk, so that the trolley body 1 moves more stably on the power catwalk, reducing the tilt or instability that may occur during the movement, and ensuring the stability of the entire sliding shoe structure during the movement.

[0054] Further, such as Figure 1 , Figure 7 As shown, the specific pressure rod 22 can be set to an L-shaped structure. The L-shaped pressure rod 22 can be divided into a long handle part and a short rod part. The long handle part and the short rod part can be an integrally formed or split structure. The extension direction of the short rod part is different from the extension direction of the long handle part, and is preferably approximately vertical. The pressure rod 22 is installed with a pipe pressing seat 23 at one end away from the mobile frame 21. For example, the pipe pressing seat 23 can be installed at one end of the short rod part. The pipe pressing seat 23 is an arc-shaped structure, and the arc surface of the pipe pressing seat 23 matches the arc of the outer surface of the pipe column. Preferably, rubber can also be installed on the arc surface of the pipe pressing seat 23 that contacts the pipe column to prevent scratching the pipe column. With this structural setting, the arc surface of the pipe pressing seat 23 matches the arc of the outer surface of the pipe column in the truck bucket 3, and the pipe column can be better pressed by the pipe pressing seat 23 to prevent the pipe column from falling out of the truck bucket 3.

[0055] The sliding shoe structure provided in this embodiment, when one end of the pipe column is placed in the truck bucket 3, the moving frame 21 moves up to drive the pressure rod 22 to press down, which can effectively fix the pipe column in the truck bucket 3, and the pressure of the pressure rod 22 on the pipe column can offset the vibration and shaking during transportation, so that the pipe column remains stable in the truck bucket 3 and prevents the pipe column from falling out of the truck bucket 3; when the pipe column is transported to the place, for example, when the pipe column needs to be removed from the truck bucket 3, the moving frame 21 moves down to drive the pressure rod 22 to lift up, so as to unlock the pipe column in the truck bucket 3, and the pipe column can be conveniently taken out. The sliding shoe structure is simple and reliable, simplifies the fixing and releasing process of the pipe column in the truck bucket 3, greatly reduces the risk of the pipe column falling off during transportation, improves construction efficiency, enhances the safety of the entire operation process, and reduces potential accident hazards.

[0056] Example 2

[0057] like Figure 1 , Figure 6 , Figure 8 As shown, based on Example 1, a through hole for the spring push rod assembly 4 to pass through can be opened at the top of the vertical mounting frame 13. Specifically, the spring push rod assembly 4 is installed near the first hinge seat 11 and is located on the moving path of the pressure rod 22.

[0058] The spring push rod assembly 4 includes an outer cylinder 41 and an inner cylinder 42. The outer cylinder 41 is a cylindrical structure with an open top. The inner cylinder 42 can be inserted into the outer cylinder 41 from the top of the outer cylinder 41. The outer cylinder 41 is fixedly connected to the trolley body 1. A strip hole 411 is provided on the side wall of the outer cylinder 41. A blocking rod 421 is fixedly installed on the outer wall of the inner cylinder 42. The blocking rod 421 is located in the strip hole 411. The strip hole 411 is used to limit the blocking rod 421 to move only in the strip hole 411, such as making reciprocating motion in the vertical direction. A spring 43 is arranged between the outer bottom wall of the inner cylinder 42 and the inner bottom wall of the outer cylinder 41. The spring 43 abuts against the outer bottom wall of the inner cylinder 42 and the inner bottom wall of the outer cylinder 41. After the inner cylinder 42 is inserted into the outer cylinder 41, it is partially located outside the outer cylinder 41 under the pushing action of the spring 43. Since the strip hole 411 limits the movement of the blocking rod 421, the inner cylinder 42 will not completely fall out of the outer cylinder 41. One end of the inner cylinder 42 located outside the outer cylinder 41 abuts against the pressure rod 22, and the spring push rod assembly 4 is used to push the pressure rod 22.

[0059] Furthermore, the inner cylinder 42 also includes a first roller 423. An installation groove 422 is opened at one end of the inner cylinder 42 outside the outer cylinder 41. The first roller 423 is installed in the installation groove 422 through a pin shaft. The first roller 423 can rotate freely relative to the inner cylinder 42, and the first roller 423 abuts against the pressure rod 22.

[0060] With this structural setting, when the pressure rod 22 is pressed down, the pressure rod 22 contacts the end of the inner tube 42 outside the outer tube 41 and gradually presses down the inner tube 42, and the inner tube 42 then compresses the spring 43. The entire spring push rod assembly 4 plays a buffering role to prevent the pressure rod 22 from directly contacting the pipe column and causing a bump on the outer wall of the pipe column. When the pressure rod 22 is pressed down to the right position and the pipe column needs to be unlocked, the elasticity of the spring 43 is released, and the inner tube 42 pushes the pressure rod 22 to help the pressure rod 22 return to the initial position. The blocking rod 421 is located in the strip hole 411 and is restricted by the edge of the strip hole 411 to prevent the inner tube 42 from falling out of the outer tube 41. The first roller 423 is in direct contact with the pressure rod 22, which reduces the friction between the inner tube 42 and the pressure rod 22, prevents the sharp corners of the inner tube 42 from directly rubbing against the pressure rod 22, and improves the service life of the sliding shoe structure.

[0061] Example 3

[0062] The present embodiment provides a remote-controlled pressure-operating system, including a pressure-operating machine, a pipe lifting device and a power catwalk. The power catwalk is arranged on one side of the pressure-operating machine. The power catwalk is installed with a sliding shoe structure provided by any one of Embodiment 1 or Embodiment 2. The pipe lifting device is connected to the pressure-operating machine. The pipe lifting device is used to pick up and send pipe strings between the power catwalk and the pressure-operating machine; the power catwalk is used to transport pipe strings; the pressure-operating machine is used to disassemble or install pipe strings in the wellbore under pressure.

[0063] The remote-controlled pressure-carrying operation system provided in this embodiment uses the sliding shoe structure provided in either Embodiment 1 or Embodiment 2, simplifies the fixing and releasing process of the pipe string in the truck bed 3, greatly reduces the risk of the pipe string falling off during transportation, improves construction efficiency, enhances the safety of the entire operation process, and reduces potential accident hazards.

[0064] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sliding shoe structure, comprising a trolley body (1), the trolley body (1) being provided with a bucket (3), the bucket (3) being used for placing a pipe column, characterized in that: The invention also comprises a pipe pressing device, which is installed on the trolley body (1). The pipe pressing device comprises a movable frame (21), the movable frame (21) is hinged to the trolley body (1), and a pressure rod (22) is hinged on the top of the movable frame (21). The movable frame (21) can move in a vertical direction. When the movable frame (21) moves upward, the pressure rod (22) is pressed downward. When the movable frame (21) moves downward, the pressure rod (22) is lifted upward. The pressure rod (22) is used to press the pipe column in the bucket (3).

2. A sliding shoe structure according to claim 1, characterized in that: The pressure rod (22) is provided with a first through hole (221) and a second through hole (222); a first hinge seat (11) is installed on the top of the trolley body (1); the pressure rod (22) is hinged to the movable frame (21) through the first through hole (221); and the pressure rod (22) is hinged to the first hinge seat (11) through the second through hole (222).

3. A sliding shoe structure according to claim 2, characterized in that: A spring push rod assembly (4) is installed on the top of the trolley body (1), and the spring push rod assembly (4) comprises an outer cylinder (41) and an inner cylinder (42). The inner cylinder (42) is inserted into the outer cylinder (41), and the outer cylinder (41) is fixedly connected to the trolley body (1). A strip hole (411) is provided on the side wall of the outer cylinder (41), and a blocking rod (421) is fixedly installed on the outer wall of the inner cylinder (42). The blocking rod (421) is located at A spring (43) is arranged in the strip-shaped hole (411) between the outer bottom wall of the inner tube (42) and the inner bottom wall of the outer tube (41); the spring (43) abuts against the outer bottom wall of the inner tube (42) and the inner bottom wall of the outer tube (41); one end of the inner tube (42) located outside the outer tube (41) abuts against the pressure rod (22); and the spring push rod assembly (4) is used to push the pressure rod (22).

4. A sliding shoe structure according to claim 3, characterized in that: The inner cylinder (42) further comprises a first roller (423); a mounting groove (422) is provided at one end of the inner cylinder (42) outside the outer cylinder (41); the first roller (423) is mounted in the mounting groove (422); and the first roller (423) abuts against the pressure rod (22).

5. A sliding shoe structure according to claim 2, characterized in that: The trolley body (1) comprises two transverse mounting plates (12) and a vertical mounting frame (13), and the trolley (3) is mounted between the two transverse mounting plates (12); the movable frame (21) comprises two vertical rods (211) and a first pin shaft (212) mounted between the two vertical rods (211), and the first through hole (221) is sleeved on the first pin shaft (212); the vertical rod (211) is hinged to the vertical mounting frame (13) via a connecting rod (14).

6. A sliding shoe structure according to claim 5, characterized in that: A second roller (121) is installed at the bottom of the transverse mounting plate (12).

7. A sliding shoe structure according to claim 6, characterized in that: A third roller (213) is installed at one end of the vertical rod (211) away from the first pin shaft (212); after the pressure rod (22) presses the pipe column, the third roller (213) and the second roller (121) are located in the same horizontal plane.

8. The sliding shoe structure according to claim 5, characterized in that: A sprocket fixing seat (122) is installed at the bottom of the transverse mounting plate (12).

9. The sliding shoe structure according to claim 3, characterized in that: A pipe pressing seat (23) is installed at one end of the pressing rod (22) away from the moving frame (21); the pipe pressing seat (23) is an arc-shaped structure, and the arc surface of the pipe pressing seat (23) matches the arc of the outer surface of the pipe column.

10. A remote controlled pressure operation system, characterized in that: It includes a pressure working machine, a pipe lifting device and a power catwalk, wherein the power catwalk is arranged on one side of the pressure working machine, the power catwalk is installed with the sliding shoe structure described in any one of claims 1 to 9, the pipe lifting device is connected to the pressure working machine, the pipe lifting device is used to pick up and send pipe strings between the power catwalk and the pressure working machine; the power catwalk is used to transport pipe strings; the pressure working machine is used to disassemble or install pipe strings in a wellbore under pressure.

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