Frame-type workover well automatic tubular column moving and transporting device

Abstract

The invention relates to the technical field of oil exploitation, in particular to a frame type automatic tubular column moving and transporting device for an overhaul well. The supporting frame is provided with a containing space; the folding arm is contained in the containing space and can be unfolded and extend to the outer side of the containing space; the pipe arranging device is slidably connected to the outer side of the supporting frame through a lifting mechanism, and the pipe arranging device is used for feeding a pipe column into the pipe conveying device when the folding arm and the pipe conveying device are located at the folding position. The safety risk caused by operation of traditional workover workers is avoided, the workover efficiency is improved, in addition, the pipe arranging device can move downwards after being turned over so that the stability of pipe column feeding can be ensured, and the situation that after a pipe arranging arm is turned over, due to the height difference between a pipe arranging clamp and a pipe conveying clamp, the pipe column feeding efficiency is greatly improved is avoided. And the problem that the tubular column swings and falls off when falling off is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of oil extraction, and in particular to a frame-type automated pipe string moving device for large well repairs. Background Art

[0002] Well overhauls are a common and crucial maintenance measure in oil production operations, aimed at restoring well productivity or resolving downhole faults. This process involves the tripping, lowering, and discharging of numerous sucker rods, tubing, and associated tools (such as sleeves), a process known as "manual tubing racking." Traditionally, these operations rely on manual labor on a rack to pull, position, and dispose of these tubing strings.

[0003] However, this traditional manual pipe laying method is labor-intensive, requiring workers to perform repetitive, high-precision physical labor at height for long periods of time, which can easily lead to fatigue and affect work efficiency and safety. Secondly, manual operation is limited by physical strength, experience and environmental factors, and the efficiency of pipe string discharge is generally low, which makes it difficult to meet the modern oil industry's demand for efficient operations.

[0004] Based on this, in order to improve the convenience of existing workover operations, we propose a frame-type automated pipe moving device for workover operations. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the manual pipe laying method in the prior art, such as high labor intensity, and to propose a frame-type large well repair automatic pipe string moving device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] Design a frame-type automatic pipe string moving device for large-scale well repair, including:

[0008] A supporting frame configured with a storage space;

[0009] a folding arm, which is stored inside the storage space and can be unfolded and extended to the outside of the storage space;

[0010] a pipe delivery device, mounted on the end of the folding arm, the pipe delivery device being rotatably connected to the folding arm via a driving member 1;

[0011] The pipe arrangement device is slidably connected to the outside of the support frame through a lifting mechanism. The pipe arrangement device is used to deliver the pipe column into the pipe delivery device when the folding arm and the pipe delivery device are in the folded position.

[0012] Furthermore, the folding arm includes a main arm and a main arm auxiliary arm rotatably connected to the storage space;

[0013] A second driving member is rotatably connected inside the storage space, and the second driving member is connected to the upper arm to control the flipping of the upper arm. A connecting rod is pinned between the upper arm and the top end of the upper arm auxiliary arm.

[0014] Furthermore, the folding arm further comprises a small arm pinned to the big arm, and a small arm auxiliary arm pinned to the big arm auxiliary arm;

[0015] An end rod is pinned between the ends of the forearm and the forearm auxiliary arm, wherein the middle part of the large arm auxiliary arm is rotatably connected to a driving member three, and the driving member three is connected to the forearm to control the flipping of the forearm.

[0016] Furthermore, the pipe delivery device includes a pipe delivery arm rotatably connected to the small arm, at least two pipe delivery clamps are installed on the end face of the pipe delivery arm, and the driving member is rotatably connected to the small arm, and the end portion is connected to the pipe delivery arm.

[0017] Furthermore, the pipe arrangement device includes a swing hydraulic cylinder 1, a pipe arrangement arm is fixedly installed on the shaft end of the swing hydraulic cylinder 1, and the pipe arrangement arm has at least two swing hydraulic cylinders 2, and a pipe arrangement clamp is fixedly installed on the shaft end of the swing hydraulic cylinder 2.

[0018] Furthermore, the first swing hydraulic cylinder includes:

[0019] a housing and a gear rotatably connected to the housing;

[0020] The top and bottom of the housing are both connected with connecting pipes, a rack is movably inserted in the housing and is located between the two connecting pipes, and the ends of the racks are both provided with piston ends;

[0021] The rack is meshed with the gear, and both sides of the gear are fixedly connected to a drive shaft that passes through the outside of the shell, and one of the drive shafts is fixed to the pipe arrangement arm.

[0022] Furthermore, two mounting plates are fixedly mounted on the side of the shell, and the mounting plates are slidably connected to a longitudinal rod of the support frame via a sliding structure.

[0023] Furthermore, the lifting mechanism includes two screws, a slot is provided on the frame of the support frame, the ends of the screws are slidably connected to the slot, and a stopper is fixedly installed on the outer side of the screw to stop the end surface of the frame;

[0024] Wherein, a threaded sleeve is provided on the end surface of the mounting plate, and the screw rod and the threaded sleeve are threadedly connected.

[0025] Furthermore, a driving arm is fixedly mounted on the outer sides of the two driving shafts, and the threaded sleeve is slidably connected to the mounting plate;

[0026] Wherein, the side of the threaded sleeve is pin-connected with an arm rod, and the end of the driving arm is pin-connected with the end of the arm rod.

[0027] Furthermore, a motor is fixedly installed inside the frame of the support frame, a worm is fixedly installed on the shaft end of the motor, the bottom end of the screw extends to the inside of the frame and is fixedly installed with a worm wheel, and the worm and the worm wheel can be meshed for transmission.

[0028] The present invention proposes a frame-type automated pipe string moving device for large-scale well repair, which has the following beneficial effects: the present invention adopts a folding arm and a pipe delivery device to improve the convenience of docking between the pipe string and the wellhead, avoids the safety risks brought by the operation of traditional well repair workers, and secondly increases the well repair efficiency. In addition, the pipe arrangement device is capable of moving downward after being flipped to ensure the stability of pipe string loading, and avoids the problems of swinging and falling of the pipe string when falling due to the height difference between the pipe arrangement clamp and the pipe delivery clamp after the pipe arrangement arm is flipped. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A perspective view of the present invention;

[0030] Figure 2 It is the front view of the present invention;

[0031] Figure 3 It is a structural schematic diagram of the pipe arrangement device of the present invention;

[0032] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of area A;

[0033] Figure 5 This is a schematic diagram of the pipe arrangement arm structure of the present invention;

[0034] Figure 6 It is a schematic structural diagram of the lifting mechanism of the present invention;

[0035] Figure 7 for Figure 6 Schematic diagram of the enlarged structure of area B;

[0036] Figure 8 for Figure 6 Schematic diagram of the enlarged structure of region C;

[0037] Figure 9 This is a state diagram of the pipe arrangement device of the present invention in the initial position;

[0038] Figure 10 This is a state diagram of the pipe arranging device of the present invention when arranging pipes.

[0039] In the figure: 1. Support frame; 10. Storage space; 11. Longitudinal rod; 12. Frame; 13. Slot; 2. Folding arm; 21. Upper arm; 22. Upper arm auxiliary arm; 23. Second driving member; 24. Connecting rod; 25. Lower arm; 26. Lower arm auxiliary arm; 27. End rod; 28. Third driving member; 3. Pipe delivery device; 31. Pipe delivery arm; 32. Pipe delivery fixture; 4. First driving member; 5. Pipe arrangement device; 50. Sliding structure; 5 1. Swing hydraulic cylinder 1; 511. Housing; 512. Gear; 513. Connecting pipe; 514. Rack; 515. Piston end; 516. Drive shaft; 52. Pipe discharge arm; 53. Swing hydraulic cylinder 2; 54. Pipe discharge clamp; 55. Mounting plate; 6. Lifting mechanism; 61. Screw; 62. Stopper; 63. Threaded sleeve; 64. Drive arm; 65. Arm; 66. Motor; 67. Worm; 68. Worm gear. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0041] Reference Figure 1-10 An embodiment of the present invention discloses a frame-type automated pipe string moving device for large-scale workover, which is used to further improve the working efficiency of the workover pipe string while ensuring safety and reducing the labor intensity of workers;

[0042] Reference Figure 1 、 Figure 2 Specifically, the device includes a support frame 1, which is equipped with a storage space 10. The support frame 1 is composed of cold-bent rectangular hollow steel welded together, and the lower end of the outer side is equipped with support legs and adjustable feet to maintain the lateral stability and wind load of the entire device;

[0043] The folding arm 2 is stored in the storage space 10 and can be unfolded to extend outside the storage space 10. Of course, the storage space 10 in the present invention is an open structure with an open top, so that the folding arm 2 can enter the storage space 10 along the storage space 10 or unfold to the outside of the storage space 10;

[0044] and a pipe delivery device 3, the pipe delivery device 3 being mounted on the end of the folding arm 2 and being rotatably connected to the folding arm 2 via a driving member 4;

[0045] Reference Figure 3 、 Figure 6In addition, the present invention also includes a pipe arrangement device 5, which is slidably connected to the outside of the support frame 1 through a lifting mechanism 6. The pipe arrangement device 5 is used to deliver the pipe column into the pipe delivery device 3 when the folding arm 2 and the pipe delivery device 3 are in the folded position. The folding position described in this embodiment is the state in which the folding arm 2 is stored inside the support frame 1, and the state in which the pipe delivery device 3 is rotated and stored inside the folding arm 2 through a driving member 4. It should be noted that when the pipe delivery device 3 is in the folded position, its upper surface should be flush with the upper surface of the support frame 1.

[0046] Reference Figure 2 In some embodiments, the folding arm 2 of the present invention includes a main arm 21 and a main arm auxiliary arm 22 rotatably connected to the storage space 10;

[0047] A second driving member 23 is also rotatably connected inside the storage space 10 , and the second driving member 23 is connected to the upper arm 21 to control the flipping of the upper arm 21 . A connecting rod 24 is also pinned between the upper arm 21 and the top end of the upper arm auxiliary arm 22 .

[0048] That is to say, the upper arm 21, the upper arm auxiliary arm 22 and the connecting rod 24 described in this embodiment together constitute a parallelogram mechanism. Secondly, the upper arm 21 and the upper arm auxiliary arm 22 described in the present invention are each provided with two, and a storage cavity is formed between the two upper arms 21 and the two upper arm auxiliary arms 22. The storage cavity is used to store the small arm 25 and the small arm auxiliary arm 26. Preferably, there are two driving members 23 described in this embodiment, and the telescopic end of the driving member 23 is pin-connected to the two upper arms 21. The flipping control of the upper arm 21 is realized by the telescopic movement of the two driving members 23, and the coordinated control of the upper arm auxiliary arm 22 is realized by means of the transmission of the connecting rod 24.

[0049] Reference Figure 2 On the basis of the above embodiment, the folding arm 2 of the present invention further includes a small arm 25 pinned to the big arm 21, and a small arm auxiliary arm 26 pinned to the big arm auxiliary arm 22;

[0050] An end rod 27 is pinned between the ends of the forearm 25 and the forearm auxiliary arm 26, and a parallelogram structure is also formed between the forearm 25, the forearm auxiliary arm 26 and the end rod 27, wherein the middle part of the upper arm auxiliary arm 22 is rotatably connected to a driving member three 28, and the driving member three 28 is connected to the forearm 25 to control the flipping of the forearm 25.

[0051] Of course, the shaft end of the driving member 3 28 described in the present invention is pin-connected to the middle part of the small arm 25. The small arm 25 described in the present invention is arranged above the small arm auxiliary arm 26, and the upper end of the small arm 25 should also have an opening. The purpose is to subsequently store the pipe delivery device 3. In this way, when the pipe delivery device 3 is in the folded position, its upper end can be arranged flush with the upper end of the small arm 25 to save storage space.

[0052] It should be noted that the driving elements described in the present invention can all be implemented using hydraulic cylinders. However, this is merely exemplary, and the specific form of the driving element is not limited thereto. For example, the driving element can also be a single push rod, an electric push rod, or any other actuator capable of providing the required thrust or linear motion. The designations "one," "two," and "three" of the driving elements are merely used to distinguish the three driving elements and do not define their specific installation positions or relative order on the component.

[0053] Reference Figure 2 Optionally, the pipe delivery device 3 in this embodiment includes a pipe delivery arm 31 rotatably connected to the small arm 25, and at least two pipe delivery clamps 32 are installed on the end face of the pipe delivery arm 31. The driving member 4 is rotatably connected to the small arm 25, and the end portion is connected to the pipe delivery arm 31.

[0054] The pipe delivery clamps 32 described in this embodiment are configured as two. Of course, the pipe delivery clamps 32 can be set as hydraulic grippers or pneumatic grippers. Their specific structures are conventional means for technical personnel in the relevant field and will not be described in detail here. Two pipe delivery clamps 32 are used to clamp the pipe string so that when the folding arm 2 is unfolded, the pipe string can be docked above the wellhead.

[0055] Reference Figure 3 、 Figure 5 Furthermore, the pipe arrangement device 5 described in the present invention includes a swing hydraulic cylinder 51, and a pipe arrangement arm 52 is fixedly installed on the axial end of the swing hydraulic cylinder 51. The pipe arrangement arm 52 has at least two swing hydraulic cylinders 2 53, and a pipe arrangement clamp 54 is fixedly installed on the axial end of the swing hydraulic cylinder 2 53. Specifically, the pipe arrangement arm 52 described in the present invention is roughly T-shaped, and the two swing hydraulic cylinders 2 53 are fixedly installed at both ends of the pipe arrangement arm 52. The design of two swing hydraulic cylinders 2 53 can realize the flipping drive of the pipe arrangement clamp 54 to meet the feeding requirements of more angles. Of course, the pipe arrangement clamp 54 described in the present invention can be set as a hydraulic gripper or a pneumatic gripper. Its specific structure is a conventional means for technical personnel in the relevant field, and will not be elaborated here.

[0056] Reference Figure 4 On the basis of the above embodiment, the swing hydraulic cylinder 51 of the present invention includes:

[0057] a housing 511 and a gear 512 rotatably connected to the housing 511;

[0058] The top and bottom of the housing 511 are both connected with connecting pipes 513. A rack 514 is movably inserted into the housing 511 and located between the two connecting pipes 513. The ends of the rack 514 are both provided with piston ends 515.

[0059] In the present invention, the two connecting pipes 513 are used to connect to the external oil circuit. When the upper connecting pipe 513 is filled with oil, the piston end 515 is driven to move downward in coordination with the entire rack 514. With the help of the meshing force between the rack 514 and the gear 512, the gear 512 is controlled to rotate.

[0060] On the contrary, when the lower connecting pipe 513 is filled with oil, the entire rack 514 is driven to move upward to control the gear 512 to reverse;

[0061] The rack 514 is meshed with the gear 512 , and both sides of the gear 512 are fixedly connected to the drive shaft 516 that passes through the outside of the shell 511 , and one of the drive shafts 516 is fixed to the pipe arrangement arm 52 .

[0062] Specifically, the swing hydraulic cylinder 1 51 in the present invention adopts a dual drive shaft 516 to output outward, the purpose of which is to subsequently control the linkage of the lifting mechanism 6. Its specific operating principle will be described later and will not be elaborated here. Of course, the swing hydraulic cylinder 2 53 described in the present invention can also adopt the same structural design as the swing hydraulic cylinder 1 51, but since the swing hydraulic cylinder 2 53 only needs a single axis to control the rotation of the pipe clamp 54, the swing hydraulic cylinder 2 53 only needs a single drive shaft 516 output, and of course the pipe clamp 54 is fixedly mounted on the drive shaft 516.

[0063] Reference Figure 7 In a further embodiment, two mounting plates 55 are fixedly installed on the side of the shell 511 in the present invention, and the mounting plates 55 are slidably connected to a longitudinal rod 11 of the support frame 1 through a sliding structure 50. Optionally, the sliding structure 50 described in the present invention can be configured as a guide rail and a slider assembly, and there are two guide rails, and the two guide rails are respectively fixed on both sides of the longitudinal rod 11, and the two sliders are respectively slidably connected to the two guide rails. Of course, the two mounting plates 55 are respectively connected to the two sliders.

[0064] Reference Figure 7 、 Figure 8In addition, the lifting mechanism 6 of the present invention includes two screws 61, and a single-shaped groove 13 is provided on the frame 12 of the support frame 1. Specifically, the frame 12 described in this embodiment is a rectangular frame on the side of the support frame 1, and the upper and lower sides of the frame 12 are provided with a single-shaped groove 13. The end of the screw 61 is slidably connected to the single-shaped groove 13, and the outer side of the screw 61 is fixedly installed with a stopper 62 on the end surface of the frame 12. Of course, the stopper 62 described in the present invention is also provided with two, and the stopper 62 and the inner side surface of the frame 12 are used for stopping to prevent the screw 61 from moving up and down when rotating, thereby improving the driving stability of the screw 61.

[0065] A threaded sleeve 63 is provided on the end surface of the mounting plate 55 , and the screw rod 61 and the threaded sleeve 63 are threadedly connected.

[0066] Reference Figure 7 On the basis of the above embodiment, in the present invention, a driving arm 64 is fixedly mounted on the outer side of each of the two driving shafts 516, and the threaded sleeve 63 is slidably connected to the mounting plate 55. Specifically, in this embodiment, at least two sliding guide grooves are formed on the base portion of the threaded sleeve 63, and a guide pin is fixedly mounted on the mounting plate 55. The sliding cooperation between the guide pin and the sliding guide groove realizes the sliding positioning of the threaded sleeve 63.

[0067] The side of the threaded sleeve 63 is pin-connected with an arm rod 65 , and the end of the driving arm 64 is pin-connected with the end of the arm rod 65 .

[0068] Reference Figure 9 、 Figure 10 That is, during the pipe laying operation, the pipe column is first placed on the two pipe laying clamps 54, and the pipe laying clamps 54 clamp and fix the pipe column. When the two drive shafts 516 of the swing hydraulic cylinder 1 51 rotate and output, the drive shaft 516 on one side will drive the pipe laying arm 52 to flip until the pipe laying arm 52 carrying the pipe column flips to the top of the entire support frame 1;

[0069] During this process, the rotation of the two drive shafts 516 will drive the drive arm 64 to rotate, and the drive arm 64 will push the threaded sleeves 63 on both sides outward through the arm rod 65 to produce lateral movement. At this time, the lateral movement of the threaded sleeve 63 will drive the screw 61 to move linearly, so as to facilitate subsequent drive to move the entire swing hydraulic cylinder 51 downward.

[0070] Since the folding arm 2 and the pipe delivery device 3 are both in the folded position in the pipe arranging state, in order to be able to move the pipe column downward and stably deliver it into the pipe delivery clamp 32, the present invention adopts a method in which the pipe arranging device 5 can move downward after being flipped to ensure the stability of pipe column loading, and avoid problems such as swinging and falling of the pipe column when falling due to the height difference between the pipe arranging clamp 54 and the pipe delivery clamp 32 after the pipe arranging arm 52 is flipped.

[0071] Reference Figure 8 It should be noted that, in the embodiment of the present invention, a motor 66 is fixedly installed inside the frame 12 of the support frame 1, a worm 67 is fixedly installed on the shaft end of the motor 66, the bottom end of the screw 61 extends to the inside of the frame 12 and is fixedly installed with a worm wheel 68, and the worm 67 and the worm wheel 68 can be engaged for transmission.

[0072] As can be seen from the above description, during the pipe laying operation, when the pipe laying arm 52 flips the pipe column to the top of the support frame 1, the two drive shafts 516 of the swing hydraulic cylinder 51 will rotate and output synchronously. At this time, the two drive shafts 516 will push the threaded sleeves 63 on both sides to move linearly through the drive arm 64 and the arm rod 65, and the threaded sleeve 63 will synchronously drive the screw 61 to produce a linear displacement. At this time, the worm gear 68 and the worm 67 at the bottom end of the screw 61 are engaged. When the motor 66 drives the worm 67 to rotate, the screw 61 can be driven to rotate by the worm 67 to achieve the control of the height of the entire pipe laying arm 52, so that the pipe column in the pipe laying clamp 54 can be stably placed into the pipe delivery clamp 32.

[0073] On the contrary, after the pipe is discharged, the motor 66 is reversed first to control the screw 61 to reverse, and the screw 61 lifts the entire swing hydraulic cylinder 51 to the initial height. When the swing hydraulic cylinder 51 is reset, the hydraulic control of the swing hydraulic cylinder 51 can be used to drive the pipe discharge arm 52 to reverse and reset. In this process, the driving arm 64 and the arm rod 65 pull the threaded sleeves 63 on both sides to reset. At this time, the worm gear 68 and the worm 67 are separated and no transmission occurs. Therefore, the accuracy of the swing hydraulic cylinder 51 in the discharge position can be guaranteed, and the interference with the position of the swing hydraulic cylinder 51 caused by misoperation of the motor 66 can be avoided.

[0074] When doing specific operations:

[0075] At the beginning, before the oil pipe string is transported to the wellhead, the folding arm 2 and the pipe delivery device 3 are both in the folded position, and the pipe delivery clamp 32 and the pipe arrangement clamp 54 are in the open state;

[0076] During the pipe arrangement stage, the pipe string is placed on the two pipe arrangement clamps 54, which clamp and fix the pipe string. Then, the first swing hydraulic cylinder 51 drives the pipe arrangement arm 52 to flip the pipe string to the upper side of the pipe delivery device 3. At the same time, the second swing hydraulic cylinder 53 drives the pipe arrangement clamp 54 to rotate, so that the pipe arrangement clamp 54 and the pipe delivery clamp 32 are opposite to each other. The lifting mechanism 6 drives the entire pipe arrangement device 5 to move downward until the pipe string is placed in the pipe delivery clamp 32. Then, the pipe arrangement clamp 54 opens, the pipe string falls into the pipe delivery clamp 32, and the pipe delivery device 3 flips and resets.

[0077] During the pipe delivery phase, after the tubing is transferred to the tubing delivery device 3, the folding arm 2 is unfolded, while the tubing delivery arm 31 remains unfolded to keep the tubing in a vertical position. The tubing delivery clamp 32 is then opened to a certain angle, and the tubing delivery clamp 32 assists the elevator in delivering the tubing to the upper end of the wellhead to contact the iron roughneck, completing the wellhead centering task.

[0078] During the return phase, the folding arm 2 and the pipe delivery device 3 are reset in sequence to complete the return phase, and then the pipe arranging and delivery tasks are repeated.

[0079] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A frame-type automated pipe string moving device for large-scale well repair, characterized in that: include; A supporting frame (1) is provided with a receiving space (10); A folding arm (2) is stored inside the storage space (10) and can be unfolded and extended to the outside of the storage space (10); A pipe delivery device (3) is installed at the end of the folding arm (2), and the pipe delivery device (3) is rotatably connected to the folding arm (2) via a driving member (4); A pipe arrangement device (5) is slidably connected to the outside of the support frame (1) via a lifting mechanism (6), and the pipe arrangement device (5) is used to deliver the pipe column into the pipe delivery device (3) when the folding arm (2) and the pipe delivery device (3) are in the folded position.

2. The frame-type automated pipe string moving device for large-scale well repair according to claim 1, characterized in that: The folding arm (2) comprises a large arm (21) and a large arm auxiliary arm (22) rotatably connected to the storage space (10); A second driving member (23) is also rotatably connected inside the storage space (10). The second driving member (23) is connected to the upper arm (21) to control the flipping of the upper arm (21). A connecting rod (24) is also pinned between the upper arm (21) and the top end of the upper arm auxiliary arm (22).

3. The frame-type automated pipe string moving device for large-scale well repair according to claim 2, characterized in that: The folding arm (2) further comprises a small arm (25) pinned to the large arm (21), and a small arm auxiliary arm (26) pinned to the large arm auxiliary arm (22); An end rod (27) is pinned between the ends of the small arm (25) and the small arm auxiliary arm (26), wherein the middle part of the large arm auxiliary arm (22) is rotatably connected to a driving member three (28), and the driving member three (28) is connected to the small arm (25) to control the flipping of the small arm (25).

4. The frame-type automated pipe string moving device for large-scale well repair according to claim 3, characterized in that: The pipe delivery device (3) includes a pipe delivery arm (31) rotatably connected to the small arm (25), at least two pipe delivery clamps (32) are installed on the end surface of the pipe delivery arm (31), and the driving member (4) is rotatably connected to the small arm (25), and the end portion is connected to the pipe delivery arm (31).

5. The frame-type automated pipe string moving device for large-scale well repair according to claim 1 is characterized in that: The pipe arrangement device (5) includes a swing hydraulic cylinder (51), a pipe arrangement arm (52) is fixedly mounted on the shaft end of the swing hydraulic cylinder (51), and the pipe arrangement arm (52) has at least two swing hydraulic cylinders (53), and a pipe arrangement clamp (54) is fixedly mounted on the shaft end of the swing hydraulic cylinder (53).

6. The frame-type automated pipe string moving device for large-scale well repair according to claim 5, characterized in that: The swing hydraulic cylinder (51) comprises: a housing (511) and a gear (512) rotatably connected to the housing (511); The top and bottom of the housing (511) are both connected with connecting pipes (513), a rack (514) is movably inserted in the housing (511) and is located between the two connecting pipes (513), and the ends of the racks (514) are both provided with piston ends (515); The rack (514) and the gear (512) are meshed, and both sides of the gear (512) are fixedly connected to a drive shaft (516) extending through the outside of the housing (511), wherein one of the drive shafts (516) is fixed to the pipe arrangement arm (52).

7. The frame-type automated pipe string moving device for large-scale well repair according to claim 6, characterized in that: Two mounting plates (55) are fixedly mounted on the side of the housing (511), and the mounting plates (55) are slidably connected to a longitudinal rod (11) of the support frame (1) via a sliding structure (50).

8. The frame-type automated pipe string moving device for large-scale well repair according to claim 7, characterized in that: The lifting mechanism (6) comprises two screw rods (61), a straight groove (13) is provided on the frame (12) of the support frame (1), the ends of the screw rods (61) are slidably connected in the straight groove (13), and a stopper (62) is fixedly installed on the outer side of the screw rods (61) to stop on the end surface of the frame (12); Wherein, a threaded sleeve (63) is provided on the end surface of the mounting plate (55), and the screw rod (61) and the threaded sleeve (63) are threadedly connected.

9. The frame-type automated pipe string moving device for large-scale well repair according to claim 8, characterized in that: A driving arm (64) is fixedly mounted on the outer sides of the two driving shafts (516), and the threaded sleeve (63) and the mounting plate (55) are slidably connected; The side of the threaded sleeve (63) is pin-connected with an arm rod (65), and the end of the driving arm (64) is pin-connected with the end of the arm rod (65).

10. The frame-type automated pipe string moving device for large-scale well repair according to claim 8, characterized in that: A motor (66) is fixedly mounted inside the frame (12) of the support frame (1), a worm (67) is fixedly mounted on the shaft end of the motor (66), the bottom end of the screw (61) extends to the inside of the frame (12) and is fixedly mounted with a worm wheel (68), and the worm (67) and the worm wheel (68) can be meshed and driven.

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