CN216866612U - Well repairing device - Google Patents

Abstract

The utility model provides a well repairing device, which can perform pipe lifting operation and pipe lowering operation in a well, and comprises: a working platform; the hoisting mechanism is used for hoisting or lowering the tubular column; the pipe supporting mechanism is arranged on the working platform and used for pushing or pulling back the pipe column; the pipe supporting mechanism pushes the pipe column onto the pipe column conveying equipment or pulls the pipe column back from the pipe column conveying equipment and supports the pipe column when the pipe column conveying equipment is in the lifting state; and the pipe column carrying equipment is arranged on one side of the pipe column conveying equipment and carries the pipe column between the pipe column conveying equipment and the specified position. Adopt this technical scheme in order to solve the problem that well repair device degree of automation is low.

Description

Well repairing device

Technical Field

The utility model relates to the technical field of oilfield equipment, in particular to a well repairing device.

Background

Among the current well workover rig that is used for the oil field, the back is fished out from the well with the tubular column to the workover rig pothook, and the staff cooperates workover rig and catwalk machine to put the tubular column to the assigned position afterwards to the staff inspects and maintains the tubular column. The existing well repairing device needs man-machine cooperation, and has the problems of low automation degree, labor waste, low working efficiency and the like.

SUMMERY OF THE UTILITY MODEL

The utility model provides a workover rig, which aims to solve the problem of low automation degree of a workover rig in the prior art.

The utility model provides a workover rig, which can carry out pipe lifting operation and pipe lowering operation on a pipe column in a well mouth, and comprises: a working platform; the hoisting mechanism is used for hoisting or lowering the tubular column; the pipe supporting mechanism is arranged on the working platform and used for pushing or pulling back the pipe column; the pipe supporting mechanism pushes the pipe column onto the pipe column conveying equipment or pulls the pipe column back from the pipe column conveying equipment and supports the pipe column when the pipe column conveying equipment is in the lifting state; and the pipe column carrying equipment is arranged on one side of the pipe column conveying equipment and carries the pipe column between the pipe column conveying equipment and the specified position.

Further, the string transporting apparatus includes: a base; the sliding frame is arranged on the base and provided with a slide way; the lifting arm is provided with a first end and a second end which are arranged oppositely, the first end of the lifting arm is movably arranged in the slideway, the first end of the lifting arm can rotate relative to the slideway, and the lifting arm is provided with an accommodating part which is used for accommodating the pipe column; one end of the driving component is in driving connection with the lifting arm, and the driving component can drive the lifting arm to move; the first end of the lifting arm is arranged close to the first end of the slide way, when the tubular column conveying equipment is in a lifting state, the second end of the lifting arm is placed on the base, and the first end of the lifting arm moves towards the second end of the slide way from the first end of the slide way.

Further, the lifting arm includes body and extension arm, and extension arm sliding connection is on the body, and the lifting arm has extension state and shrink state, and the body is the longest with extension arm overlap portion when the lifting arm is in the shrink state, and the lifting arm is in one side of keeping away from the carriage that the overlap portion of extension arm and body is the shortest and extension arm when extension state.

Further, the pipe string handling apparatus includes: the rack body is provided with a first side and a second side which are oppositely arranged; the mechanical arm is used for carrying the tubular column; the connecting part is movably arranged on the frame body, the mechanical arm is arranged on the connecting part, and the connecting part has a lifting state moving relative to the frame body; the lifting assembly is arranged on the frame body and is in driving connection with the connecting part, and the lifting assembly is used for driving the connecting part to lift relative to the frame body; the overturning assembly is arranged on the connecting portion and is connected with the mechanical arm in a driving mode, and the overturning assembly can drive the mechanical arm to overturn relative to the frame body so that the mechanical arm overturns between one side and the other side of the frame body.

Further, the mechanical arm comprises a turnover frame and a carrying piece, the turnover assembly is in driving connection with the turnover frame, the carrying piece is used for fixing the tubular column, the carrying piece is movably arranged on the turnover frame, the tubular column carrying equipment further comprises a telescopic assembly, the telescopic assembly is arranged between the turnover frame and the carrying piece, and the telescopic assembly is used for driving the carrying piece to move relative to the turnover frame.

Further, well repair device still includes hydraulic tong mechanism, and hydraulic tong mechanism sets up on work platform, and hydraulic tong mechanism is used for the split or connects the tubular column, and hydraulic tong mechanism includes: the supporting seat is arranged on the working platform; the lifting frame is movably arranged on the supporting seat; the lifting driving piece is in driving connection with the lifting frame and drives the lifting frame to lift; the sliding seat is slidably arranged at the top end of the lifting frame; the sliding driving piece is in driving connection with the sliding seat and drives the sliding seat to move relative to the lifting frame; the hydraulic tong is arranged on the sliding seat and used for disassembling or connecting the pipe column.

Further, well repair device still includes the splashproof ware, and the splashproof ware includes telescopic cylinder and sewage collector, and telescopic cylinder is used for enclosing the periphery of establishing at the tubular column, and sewage collector sets up in telescopic cylinder below.

Further, the pipe supporting mechanism comprises a base body, a clamping mechanical arm, a telescopic mechanical arm and a swinging mechanical arm, wherein the base body is arranged on the working platform, the swinging mechanical arm is arranged on the base body, the telescopic mechanical arm is connected with the swinging mechanical arm, the clamping mechanical arm is connected with the telescopic mechanical arm, the clamping mechanical arm is used for clamping a pipe column, and the telescopic mechanical arm is matched with the swinging mechanical arm to push the pipe column to the pipe column conveying equipment or pull the pipe column back from the pipe column conveying equipment and support the pipe column.

Further, hang and get mechanism and include elevator and workover rig, the workover rig setting is in one side of work platform, and the elevator includes mount, holder and rotary driving piece, and the mount passes through loose pulley assembly to be connected on the workover rig, and the holder rotates to be connected on the mount, and rotary driving piece sets up on the mount, and rotary driving piece is connected with the holder drive to rotate around the mount with the drive holder, and the holder is used for the centre gripping tubular column.

Furthermore, the well repairing device further comprises a pipe bin, the pipe bin is arranged on one side of the pipe column conveying equipment, the pipe column conveying equipment is arranged between the pipe bin and the pipe column conveying equipment, and the pipe column conveying equipment moves the pipe column on the pipe column conveying equipment to the pipe bin.

By applying the technical scheme, the well repairing device comprises a working platform, a hoisting mechanism, a pipe supporting mechanism, pipe column conveying equipment and pipe column carrying equipment, and by adopting the technical scheme, the hoisting mechanism can hoist the pipe column, the pipe supporting mechanism pushes the pipe column to the pipe column conveying equipment, then the pipe column conveying equipment conveys the pipe column from a high position to a low position, and the pipe column carrying equipment carries the pipe column to a specified position from the pipe column conveying equipment, so that the pipe column can be automatically moved to the specified position from a well mouth; the tubular column handling equipment can be used for carrying the tubular column to the tubular column conveying equipment, conveying the tubular column to a high position from a low position by the tubular column conveying equipment, hoisting the tubular column by the hoisting mechanism, pulling the tubular column back by the tubular column supporting mechanism, supporting the tubular column, and lowering the tubular column to a well mouth or a well through the hoisting assembly. The well repairing device provided by the technical scheme has high automation degree, can save labor force and improve working efficiency, and has the advantages of simple structure, small occupied space, convenience in movement, low cost and the like.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 shows a schematic structural view of a well servicing apparatus provided by the present invention;

FIG. 2 shows a partial enlarged view of portion A of FIG. 1;

FIG. 3 shows a schematic structural view of an elevator provided by the present invention;

FIG. 4 shows a schematic structural view of a pipe supporting mechanism provided by the present invention;

FIG. 5 is a schematic structural view of a pipe string transporting apparatus provided by the present invention;

FIG. 6 is a schematic diagram of a lift arm configuration provided by the present invention;

fig. 7 shows a partially enlarged view of a portion B in fig. 6;

fig. 8 shows a partially enlarged view of portion C of fig. 6;

FIG. 9 is a schematic view showing the construction of the pipe handler provided in the present invention;

FIG. 10 is a schematic view showing the construction of a robot arm of the pipe handler provided in the present invention;

FIG. 11 is a schematic diagram showing the construction of a hydraulic tong mechanism provided by the present invention;

FIG. 12 shows a schematic structural view of a splash guard provided by the present invention;

fig. 13 is a schematic structural diagram showing another aspect of the splash guard provided by the present invention.

Wherein the figures include the following reference numerals:

10. a working platform;

20. a hoisting mechanism; 21. an elevator; 211. a fixed mount; 212. a clamping member; 213. a rotary drive member; 22. a workover rig;

30. a pipe supporting mechanism; 31. a substrate; 32. clamping the manipulator; 33. a telescopic mechanical arm; 34. swinging the manipulator;

40. a tubular column conveying device; 41. a base; 42. a carriage; 421. a slideway; 4211. a first end of the slideway; 4212. a second end of the chute; 43. a lifting arm; 431. a first end of a lift arm; 432. a second end of the lift arm; 433. a body; 4331. a slide rail; 434. an extension arm; 4341. a limiting structure; 43411. a limiting plate; 43412. a second driving member; 4342. a sliding part; 435. an accommodating portion; 44. a drive assembly; 45. a first driving member; 46. a variable amplitude arm; 47. a support frame; 48. a buffer mechanism; 491. a telescopic rod; 492. a support portion;

50. a tubular string handling apparatus; 51. a frame body; 52. a mechanical arm; 521. a roll-over stand; 522. a carrier; 5221. a support bar; 5222. an electromagnet; 53. a connecting portion; 541. a sprocket assembly; 55. a turnover assembly; 56. a telescoping assembly; 571. a guide bar; 58. a second guide structure; 581. a guide channel; 582. a guide post;

60. a hydraulic tong mechanism; 61. a supporting seat; 62. a lifting frame; 63. a lifting drive member; 64. a sliding seat; 65. a sliding drive member; 66. hydraulic tongs;

70. a splash guard; 71. a telescopic cylinder; 72. a splash guard drive;

80. and (6) a pipe bin.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, an embodiment of the present invention provides a well repairing apparatus, which includes a working platform 10, a hoisting mechanism 20, a pipe supporting mechanism 30, a pipe string conveying device 40, and a pipe string handling device 50. The working platform 10 is connected with a hoisting mechanism 20, and the hoisting mechanism 20 is used for hoisting and lowering the pipe column. A pipe supporting mechanism 30 is provided on the work platform 10, the pipe supporting mechanism 30 being used to push or pull the pipe string. The tubular column conveying equipment 40 is arranged on one side of the working platform 10, the tubular column conveying equipment 40 conveys the tubular column between the hoisting mechanism 20 and the ground, the tubular column conveying equipment 40 has a lifting state and an initial state which are oppositely arranged, and when the tubular column conveying equipment 40 is in the lifting state, the pipe supporting mechanism 30 pushes the tubular column onto the tubular column conveying equipment 40 or pulls the tubular column back from the tubular column conveying equipment 40 and supports the tubular column. The pipe string is righted even if the pipe string is kept in a vertical state, so that the pipe string can be conveniently lowered. The string handling apparatus 50 is provided on one side of the string conveying apparatus 40, and the string handling apparatus 50 handles a string between the string conveying apparatus 40 and a specified position.

By applying the technical scheme, the well repairing device comprises a working platform 10, a hoisting mechanism 20, a pipe supporting mechanism 30, pipe column conveying equipment 40 and pipe column conveying equipment 50, and by adopting the technical scheme, the hoisting mechanism 20 can hoist a pipe column, the pipe supporting mechanism 30 pushes the pipe column to the pipe column conveying equipment 40, then the pipe column conveying equipment 40 conveys the pipe column from a high position to a low position, and the pipe column conveying equipment 50 conveys the pipe column from the pipe column conveying equipment to an appointed position; the tubular column conveying equipment 50 can convey the tubular column to the tubular column conveying equipment 40, the tubular column conveying equipment 40 conveys the tubular column to a high position from a low position, the hoisting mechanism 20 hoists the tubular column, the tubular column is pulled back and is righted by the tubular column supporting mechanism 30 after the tubular column is fixed, and the tubular column is lowered to a well mouth or a well by the hoisting mechanism 20. The well repairing device provided by the technical scheme has high automation degree, can save labor force and improve working efficiency, and has the advantages of simple structure, small occupied space, convenience in movement, low cost and the like.

As shown in fig. 5 to 8, the pipe string transporting apparatus 40 includes a base 41, a carriage 42, a lifting arm 43, and a driving assembly 44. The sliding frame 42 is arranged on the base 41, and a slide rail 421 is arranged on the sliding frame 42; a lifting arm 43 having a first end and a second end arranged oppositely, the first end 431 of the lifting arm being movably arranged in the slideway 421, and the first end 431 of the lifting arm being rotatable relative to the slideway 421, the lifting arm 43 having a receiving portion 435 thereon, the receiving portion 435 being used for receiving a pipe string; one end of the driving assembly 44 is drivingly connected to the lifting arm 43, and the driving assembly 44 can drive the lifting arm 43 to move.

The slide 421 has a first end and a second end which are opposite to each other, the second end 4212 of the slide is located between the first end 4211 of the slide and the second end 432 of the lifting arm, when the tubular column conveying device 40 is in the initial state, the second end 432 of the lifting arm is placed on the base 41, the first end 431 of the lifting arm is located close to the first end 4211 of the slide, when the tubular column conveying device 40 is in the lifting state, the second end 432 of the lifting arm is lifted relative to the base 41, and the first end 431 of the lifting arm is moved from the first end 4211 of the slide to the second end 4212 of the slide. By adopting the scheme, the tubular column to be conveyed can be placed in the accommodating part, and when the tubular column conveying equipment 40 is switched between the lifting state and the initial state, the tubular column can be conveyed from a low position to a high position or from the high position to the low position. When the tubular column conveying device 40 is switched between the lifting state and the initial state, the first end 431 of the lifting arm moves between the first end 4211 of the slideway and the second end 4212 of the slideway, so that the tubular column can be driven to move in the horizontal direction along the slideway 421, and the tubular column can be accurately moved to a specified position. The first end 431 of the lifting arm may be provided with a connecting shaft, which is rotatably connected and slidably connected within the slideway 421. The first end 431 of the lifting arm may also be rotatably connected with a connecting shaft, which is slidably connected with the slideway 421.

Specifically, the lifting arm 43 includes a body 433 and an extension arm 434, the extension arm 434 is slidably connected to the body 433, the lifting arm 43 has an extended state and a retracted state, when the lifting arm 43 is in the retracted state, an overlapping portion of the body 433 and the extension arm 434 is longest, when the lifting arm 43 is in the extended state, an overlapping portion of the extension arm 434 and the body 433 is shortest, and one end of the extension arm 434 is located on a side of the body 433 away from the carriage 42. The lifting arm 43 has a contracted state and an extended state, so that the height of the second end 432 of the lifting arm and the length of the lifting arm 43 in the horizontal direction can be adjusted, thereby improving the adaptability of the lifting arm 43 to the use environment. In addition, the lifting arm 43 is arranged in such a way, so that the occupied space of the lifting arm in the initial state can be reduced, and the whole occupied space of the conveying device is further reduced.

In this embodiment, a first driving member 45 is disposed between the body 433 and the extension arm 434, and the first driving member 45 drives the extension arm 434 to slide relative to the body 433. Optionally, the first driver 45 is disposed on the body 433. A sprocket structure may be provided between the first driving member 45 and the extension arm 434 to transmit the driving force of the first driving member 45 to the extension arm 434.

Specifically, the receiving part 435 is provided on the extension arm 434, and the shape of the receiving part 435 matches the shape of the pipe column. The receiving portion 435 is used to receive a pipe string. The shape of the receptacle 435, which is configured to match the shape of the tubing string, prevents the tubing string from shifting relative to the extension arm 434, thereby improving the stability of the delivery process.

Specifically, a luffing jib 46 is arranged between the driving assembly 44 and the lifting jib 43, one end of the luffing jib 46 is rotatably connected with the lifting jib 43, the other end of the luffing jib 46 is rotatably connected with the base 41, the driving assembly 44 is in driving connection with the luffing jib 46, and the driving assembly 44 drives the lifting jib 43 to move through the luffing jib 46. One end of the luffing jib 46 can be connected to the middle of the body 433 of the lifting jib 43 and also to the end of the body 433 remote from the carriage 42. The drive assembly 44 may be a linear drive, and the output shaft of the drive assembly 44 drives the horn 46 to rotate relative to the base 41, and one end of the horn 46 drives the second end 432 of the lift arm to move, thereby driving the second end 432 of the lift arm to switch between the initial state and the lifted state. A luffing jib 46 is disposed between the drive assembly 44 and the lifting jib 43, such that the drive assembly 44 can drive the lifting jib 43 to rotate and move linearly relative to the slide 421.

In this embodiment, the tubular column conveying apparatus 40 further includes a support bracket 47, the support bracket 47 is disposed on the base 41 and spaced apart from the carriage 42, and the support bracket 47 is used for supporting the lifting arm 43. When the pipe string conveying apparatus 40 is in the initial state, the lifting arm 43 is lapped on the support bracket 47. The support frame 47 can support the lifting arm, so that the pressure of the support frame 47 on the sliding frame 42 and the driving assembly 44 is reduced, and the structural stability and the service life of the whole device can be improved. In addition, when the lifting arm 43 switches to the initial state, the support frame 47 can limit the lifting arm 43, and prevent the second end 432 of the lifting arm from being too low to cause damage to other parts.

Specifically, the string conveying apparatus 40 further includes a buffer mechanism 48, the buffer mechanism 48 being provided on the base 41, the buffer mechanism 48 being located below the lift arm 43, the buffer mechanism 48 being for buffering the lift arm 43. The buffer mechanism 48 has a certain elasticity, when the lifting arm 43 is switched from the lifting state to the initial state, the lifting arm 43 has inertia, and the buffer mechanism 48 is arranged to buffer the lifting arm 43, so that the lifting arm 43 is prevented from being damaged due to collision with parts such as the support frame 47.

Specifically, the extension arm 434 is provided with a limiting structure 4341 for limiting the pipe column located in the accommodating portion 435, the limiting structure 4341 includes a limiting plate 43411 and a second driving element 43412, the second driving element 43412 is arranged on the lifting arm 43, the limiting plate 43411 is connected with the extension arm 434, the second driving element 43412 is in driving connection with the limiting plate 43411, the limiting plate 43411 has a limiting state and an avoiding state, the limiting plate 43411 is located on one side of the extension arm 434 when the limiting plate 43411 is in the avoiding state, and the limiting plate 43411 abuts against the pipe column when the limiting plate 43411 is in the limiting state. The limiting structure 4341 is arranged, so that the pipe column can be prevented from sliding off the extension arm. The second driver 43412 may be a linear driver. The limiting plate 43411 can be slidably connected with the extension arm 434, and the second driving element 43412 drives the limiting plate 43411 to slide relative to the extension arm 434, so that the limiting plate 43411 is switched between the avoiding state and the limiting state. The limiting plate 43411 can be rotatably connected with the extension arm 434, an output shaft of the second driving element 43412 is rotatably connected with one end of the limiting plate 43411, the second driving element 43412 drives the limiting plate 43411 to rotate relative to the extension arm 434, the limiting plate 43411 is in an avoiding state when the other end of the limiting plate 43411 rotates to one side of the extension arm 434, the limiting plate 43411 is abutted to a pipe column when the other end of the limiting plate 43411 rotates to the other side of the extension arm 434, and the limiting plate 43411 is in a limiting state.

Specifically, the body 433 is provided with a sliding rail 4331, the extension arm 434 is provided with a sliding portion 4342, and the sliding portion 4342 is clamped and slidably connected in the sliding rail 4331. So set up, extension arm 434 can slide steadily relative to body 433.

In this embodiment, the pipe column conveying apparatus 40 further comprises an expansion link 491 and a support portion 492, both ends of the expansion link 491 are respectively connected with the base 41 and the support portion 492, the support portion 492 is disposed on the ground, and the base 41 is leveled by adjusting the length of the expansion link 491. The number of the telescopic rods 491 and the supporting parts 492 is plural and the telescopic rods are distributed on the base 41 at intervals so as to adjust the distance between each part of the base 41 and the bottom surface, thereby keeping the base 41 stable. The expansion link 491 may be an electric expansion link, a hydraulic cylinder or a pneumatic cylinder.

As shown in fig. 9 and 10, the pipe string handling apparatus 50 includes a rack 51, a robot arm 52, a connecting portion 53, a lifting assembly, and an inverting assembly 55. The frame body 51 has a first side and a second side which are oppositely arranged; the robotic arm 52 is used to handle the tubular string; the connecting part 53 is movably arranged on the frame body 51, the mechanical arm 52 is arranged on the connecting part, and the connecting part has a lifting state moving relative to the frame body; the lifting assembly is arranged on the frame body 51, is in driving connection with the connecting part 53 and is used for driving the connecting part to lift relative to the frame body; the overturning component 55 is disposed on the connecting portion 53, the overturning component 55 is in driving connection with the robot 52, and the overturning component 55 can drive the robot 52 to overturn relative to the frame body 51, so that the robot 52 overturns from one side of the frame body 51 to the other side.

Specifically, the robot arm 52 comprises a roll-over stand 521 and a carrying member 522, the roll-over assembly 55 is in driving connection with the roll-over stand 521, the carrying member 522 is used for fixing a tubular column, the carrying member 522 is movably arranged on the roll-over stand 521, the tubular column carrying equipment 50 further comprises a telescopic assembly 56, the telescopic assembly 56 is arranged between the roll-over stand 521 and the carrying member 522, and the telescopic assembly 56 is used for driving the carrying member 522 to move relative to the roll-over stand 521. The carrier 522 is used to hold or release the tubular string. In general, the telescoping assemblies 56 drive the carrier 522 in a horizontal direction so that the carrier 522 accurately prevents a tubular string from being positioned, improving the adaptability of the tubular string handling apparatus 50. The roll-over assembly 55 can drive the roll-over stand 521 to roll over, thereby driving the carrier 522 and the tubular string to roll over to complete the transport of the tubular string.

Specifically, the pipe string handling apparatus 50 further includes a first guide structure provided between the connection portion 53 and the frame body 51, the first guide structure being used to guide the connection portion 53. Lifting unit drive connecting portion 53 goes up and down, sets up first guide structure and can avoid connecting portion 53 to rock or slope at the lift in-process, improves connecting portion 53's motion stability.

Specifically, the first guiding structure includes a guiding rod 571 and a through hole disposed on the connecting portion 53, the guiding rod 571 is vertically disposed on the frame body 51, the guiding rod 571 is disposed in the through hole, and the through hole cooperates with the guiding rod 571 to guide the connecting portion 53. The guide rod 571 is matched with the through hole to guide the connecting part 53, so that the guide effect is good, the structure is simple, and the installation is easy.

The pipe string handling equipment further comprises a second guiding structure 58, the second guiding structure 58 is arranged between the overturning frame 521 and the handling member 522, and the second guiding structure 58 is used for guiding the handling member 522. The provision of the second guide structure 58 enables the carrier 522 to move smoothly relative to the roll stand 521.

Specifically, the second guiding structure 58 includes a guiding channel 581 and a guiding column 582, the guiding channel 581 is disposed along the horizontal direction, the guiding channel 581 is disposed at the end of the roll-over stand 521, the guiding column 582 is disposed at the bottom of the carrier 522, and the guiding column 582 is movably disposed in the guiding channel 581, and the guiding channel 581 cooperates with the guiding column 582 to guide the carrier 522. When the telescopic assembly 56 drives the carrying piece 522 to move relative to the roll-over stand 521, the guide channel 581 is matched with the guide column 582, so that the carrying piece 522 can be prevented from shaking or skewing, and the motion stability of the carrying piece 522 is improved; meanwhile, the guide column 582 can provide supporting force for the carrier 522, so that the load borne by the telescopic assembly 56 when the carrier 522 is driven is reduced.

Specifically, the number of the roll-over stands 521 is two, the two roll-over stands 521 are respectively connected with two ends of the roll-over assembly 55, and the carrying members 522 are disposed on the two roll-over stands 521. Optionally, when the transportation member 522 may be driven by the two roll-over stands 521 to turn over, or the roll-over stand 521 on one side may actively drive the transportation member 522 to turn over, and the roll-over stand 521 on the other side may move in a driven manner to assist in driving the transportation member 522 to turn over. So set up, the power that makes the both ends of upset subassembly bear is even to the overall structure stability of device has been improved.

The carrying member 522 includes a support bar 5221 and an electromagnet 5222, the electromagnet 5222 is disposed on the support bar 5221, and the support bar 5221 is movably disposed on the roll-over stand 521. The electromagnet 5222 is used for adsorbing the tubular column to be conveyed, and the conveying member 522 is simple in structure due to the electromagnet 5222. Alternatively, electromagnets 5222 are disposed on both sides of the support bar 5221, and the electromagnets on both sides adsorb the column at the same time, so as to stably adsorb the column to be carried. In other embodiments, the electromagnet 5222 can be replaced with a clamping structure such as a jaw that grabs the tubular string to be handled.

Specifically, the electromagnet 5222 is provided with a groove, the shape of which matches the shape of the pipe string. Due to the arrangement of the grooves, the contact area between the electromagnet 5222 and the pipe column can be increased, and the pipe column is prevented from falling due to insufficient adsorption force; simultaneously, set up the recess and can also carry on spacingly to the tubular column, prevent that the relative electro-magnet of tubular column from removing.

Specifically, the lifting assembly comprises a driving member and a sprocket assembly 541, the driving member is in driving connection with the sprocket assembly 541, and the sprocket assembly 541 is in driving connection with the connecting portion 53. The driving member drives the sprocket assembly 541 to rotate, and the sprocket assembly 541 drives the connecting portion 53 to ascend and descend. By adopting the structure, the structure is simple, the noise is low, and the operation is simple and easy. Alternatively, the sprocket assembly 541 can adopt a speed-multiplying chain, and the speed of the speed-multiplying chain is accurate and stable, so that accurate synchronous conveying can be ensured; the speed-multiplying chain has high conveying capacity and can bear large load; meanwhile, the speed multiplying chain can work in a severe environment, and the performance is reliable.

In this embodiment, the well repairing device further comprises a hydraulic clamp mechanism 60, the hydraulic clamp mechanism 60 is arranged on the working platform, and the hydraulic clamp mechanism 60 is used for disassembling or connecting a pipe string. Generally, when the tubular column is fished out from the well, a plurality of tubular columns are connected end to end and are in threaded connection, and the hydraulic tong mechanism clamps one or more tubular columns at the topmost part and drives the tubular columns to rotate so as to separate or connect the tubular columns with other tubular columns.

As shown in fig. 11, the hydraulic tong mechanism 60 includes a support base 61, a lift frame 62, a lift drive 63, a slide base 64, a slide drive 65, and a hydraulic tong 66. The supporting seat 61 is arranged on the working platform 10; the lifting frame 62 is movably arranged on the supporting seat 61; the lifting driving piece 63 is in driving connection with the lifter, and the lifting driving piece 63 drives the lifting frame 62 to lift; the sliding seat 64 is slidably arranged at the top end of the lifting frame 62; the sliding driving piece 65 is in driving connection with the sliding seat 64, and the sliding driving piece 65 drives the sliding seat 64 to move relative to the lifting frame 62; a hydraulic clamp 66 is provided on the sliding seat 64, the hydraulic clamp 66 being used for disconnecting or connecting a pipe string. Optionally, the sliding driving member 65 drives the sliding seat 64 to move in the horizontal direction, the lifting frame 62 and the lifting driving member 63 can drive the hydraulic tong 66 to lift, the sliding driving member 65 and the sliding seat 64 can drive the hydraulic tong 66 to move in the horizontal direction, so that the hydraulic tong 66 can move to the position of the pipe column conveniently, and then the hydraulic tong 66 clamps the pipe column and drives the pipe column to rotate so as to disassemble or connect the pipe column.

As shown in fig. 12 and 13, the well repairing device further comprises a splash guard 70, wherein the splash guard 70 comprises a telescopic cylinder 71 and a sewage collector, the telescopic cylinder 71 is used for surrounding the periphery of the pipe column, and the sewage collector is arranged below the telescopic cylinder 71. The splash guard 70 further comprises a splash guard driving member 72, the splash guard driving member 72 is in driving connection with the telescopic cylinder 71, and the splash guard driving member 72 is used for driving the telescopic cylinder 71 to telescope. After the hydraulic tong mechanism 60 separates the pipe column, the lifting driving member 63 and the sliding driving member 65 of the hydraulic tong mechanism 60 are matched to drive the hydraulic tong 66 to be away from the pipe column, then the splash guard driving member 72 drives the telescopic cylinder 71 to extend, so that the telescopic cylinder 71 is surrounded at the periphery of the bottom end of the pipe column, and the residual sewage in the pipe column flows downwards to the sewage collector along the inner wall of the telescopic cylinder 71.

As shown in fig. 4, the pipe supporting mechanism 30 includes a base 31, a clamping robot 32, a telescopic robot arm 33, and a swing robot 34, the base 31 is disposed on the work platform 10, the swing robot 34 is disposed on the base 31, the telescopic robot arm 33 is connected to the swing robot arm 34, the clamping robot arm 32 is connected to the telescopic robot arm 33, the clamping robot arm 32 is used for clamping a pipe string, and the telescopic robot arm 33 cooperates with the swing robot arm 34 to push the pipe string to the pipe string transporting apparatus 40. The gripping robot 32 grips the tubular string and the telescoping robot 33 and swing robot 34 cooperate to push the gripping robot 32 and tubular string onto the tubular string conveying device 40 or to pull the tubular string back from the tubular string conveying device 40 and right it. Centralizing the string, i.e., maintaining the string in an upright position, facilitates lowering the string into the well.

As shown in fig. 3, the hoisting mechanism 20 includes an elevator 21 and a workover rig 22, the workover rig 22 is disposed on one side of the working platform 10, the elevator 21 includes a fixing frame 211, a clamping member 212 and a rotary driving member 213, the fixing frame 211 is connected to the workover rig 22 through a pulley assembly, the clamping member 212 is rotatably connected to the fixing frame 211, the rotary driving member 213 is disposed on the fixing frame 211, the rotary driving member 213 is drivingly connected to the clamping member 212 to drive the clamping member 212 to rotate around the fixing frame 211, and the clamping member 212 is used for clamping a pipe string. The hoisting mechanism 20 further comprises slips and a slip driving member, the slip driving member is connected with the slips, when the pressure in the well is high, the slips can be lowered into the well and the tubular string can be clamped, and then the slip driving member drives the slips and the tubular string to move out of the well so as to take out the tubular string. When the pressure in the well is low, the tubing string can be removed from the well using the elevator 21. The elevator 21 lifts the string after it has seized. Optionally, a guide wheel is arranged on the fixing frame 211, and the guide wheel is slidably connected with the workover rig. When the elevator 21 lifts the tubular string, the second end 432 of the lifting arm is raised, the pipe supporting mechanism 30 pushes the bottom end of the tubular string onto the lifting arm 43, and the elevator 21 is then lowered to place the tubular string on the lifting arm as a whole. The pipe support mechanism 30 is operated and the elevator 21 is lowered while the pipe string is tilted relative to the fixed frame 211, so that the rotary drive member 213 rotates the gripping member 212 to tilt the pipe string during the above process.

In this embodiment, the workover rig further includes a magazine 80, the magazine 80 is disposed on one side of the tubular string conveying equipment 40, the tubular string handling equipment 50 is disposed between the magazine 80 and the tubular string conveying equipment 40, and the tubular string handling equipment 50 moves the tubular string on the tubular string conveying equipment 40 to the magazine 80. Optionally, the pipe magazine 80 includes a pipe string support that separates from the electromagnet 5222 when the handling member 522 of the pipe string handling apparatus 50 moves a pipe string onto the pipe string support and the electromagnet 5222 on the handling member 522 is subsequently de-energized. After the pipe column is moved to the pipe bin, the working personnel check or maintain the pipe column in the pipe bin.

In this embodiment, the process of transporting the tubular string from the wellhead to the tubular magazine 80 is: after the tubular column in the well is taken out, the tubular column is hoisted by the elevator 21, then the tubular column is disassembled by the hydraulic clamp mechanism 60, the tubular column conveying equipment 40 is switched to the lifting state, the lifting arm 43 is in the extending state, the disassembled tubular column is pushed to the lifting arm 43 of the tubular column conveying equipment 40 by the pipe supporting mechanism 30, then the lifting arm 43 is switched to the contracting state, the tubular column conveying equipment is switched to the initial state, and then the tubular column is moved to the tubular bin 80 from the lifting arm 43 by the tubular column conveying equipment 50, so that the whole disassembling and conveying work is completed. The process of transporting the string from the magazine 80 into the well is: the tubular string handling apparatus 50 handles a tubular string from the magazine 80 onto the tubular string conveying apparatus 40, the tubular string conveying apparatus 40 is switched from an initial state to a raised state, and then the lifting arm 43 of the tubular string conveying apparatus 40 is switched from a contracted state to an extended state, then the elevator 21 fixes the top end of the tubular string and lifts the tubular string from the tubular string conveying apparatus 40, the pipe holding mechanism 30 holds the bottom end of the tubular string and pulls the tubular string onto the work platform to keep the tubular string in an upright state when the bottom end of the tubular string moves up to the top end of the lifting arm 43, then the hydraulic tong mechanism 60 connects the lifted tubular string with other tubular strings, and finally the elevator 21 lowers the tubular string into the wellhead or well.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A workover device capable of tripping and lowering a tubular string within a wellbore, comprising:

a work platform (10);

the hoisting mechanism (20), the working platform (10) is connected with the hoisting mechanism (20), and the hoisting mechanism (20) is used for hoisting or lowering the pipe column;

the pipe supporting mechanism (30), the pipe supporting mechanism (30) is arranged on the working platform (10), and the pipe supporting mechanism (30) is used for pushing or pulling the pipe string;

the pipe string conveying device (40) is arranged on one side of the working platform (10), the pipe string conveying device (40) conveys the pipe string between the hoisting mechanism (20) and the ground, the pipe string conveying device (40) has a lifting state and an initial state which are oppositely arranged, and when the pipe string conveying device (40) is in the lifting state, the pipe supporting mechanism (30) pushes the pipe string onto the pipe string conveying device (40) or pulls the pipe string back from the pipe string conveying device (40) and supports the pipe string;

a string handling apparatus (50) provided at one side of the string conveying apparatus (40), the string handling apparatus (50) handling the string between the string conveying apparatus (40) and a specified position.

2. A well servicing device according to claim 1, characterized in that the string conveying apparatus (40) comprises:

a base (41);

the sliding frame (42), the sliding frame (42) is arranged on the base (41), and a slide rail (421) is arranged on the sliding frame (42);

a lifting arm (43) having a first end and a second end which are oppositely arranged, wherein the first end (431) of the lifting arm is movably arranged in the slideway (421), the first end (431) of the lifting arm can rotate relative to the slideway (421), the lifting arm (43) is provided with a containing part (435), and the containing part (435) is used for containing a pipe column;

a driving assembly (44), wherein one end of the driving assembly (44) is in driving connection with the lifting arm (43), and the driving assembly (44) can drive the lifting arm (43) to move;

wherein the ramp (421) has first and second oppositely disposed ends, the second end (4212) of the ramp is located between the first end (4211) of the ramp and the second end (432) of the lifting arm, the second end (432) of the lifting arm is placed on the base (41) when the tubular string conveying apparatus (40) is in the initial state, the first end (431) of the lifting arm is disposed proximate to the first end (4211) of the ramp, the second end (432) of the lifting arm is raised relative to the base (41) when the tubular string conveying apparatus (40) is in the raised state, and the first end (431) of the lifting arm is moved toward the second end (4212) of the ramp by the first end (4211) of the ramp.

3. The well intervention device of claim 2, wherein the lift arm (43) comprises a body (433) and an extension arm (434), the extension arm (434) is slidably connected to the body (433), the lift arm (43) has an extended state and a retracted state, the body (433) overlaps the extension arm (434) the longest portion when the lift arm (43) is in the retracted state, the extension arm (434) overlaps the body (433) the shortest portion when the lift arm (43) is in the extended state, and an end of the extension arm (434) is located on a side of the body (433) away from the carriage (42).

4. A well servicing device according to claim 1, characterized in that the tubular string handling apparatus (50) comprises:

a frame body (51) having a first side and a second side which are oppositely arranged;

a robotic arm (52), the robotic arm (52) for handling a tubular string;

the connecting part (53) is movably arranged on the frame body (51), the mechanical arm (52) is arranged on the connecting part, and the connecting part has a lifting state moving relative to the frame body;

the lifting assembly is arranged on the frame body (51), is in driving connection with the connecting part (53), and is used for driving the connecting part to lift relative to the frame body;

the overturning assembly (55) is arranged on the connecting portion (53), the overturning assembly (55) is in driving connection with the mechanical arm (52), and the overturning assembly (55) can drive the mechanical arm (52) to overturn relative to the frame body (51) so that the mechanical arm (52) overturns from one side to the other side of the frame body (51).

5. A well servicing device according to claim 4, characterized in that the robot arm (52) comprises a roll-over stand (521) and a handling member (522), the roll-over assembly (55) is drivingly connected to the roll-over stand (521), the handling member (522) is used for fixing a tubular string, the handling member (522) is movably arranged on the roll-over stand (521), the tubular string handling apparatus (50) further comprises a telescopic assembly (56), the telescopic assembly (56) is arranged between the roll-over stand (521) and the handling member (522), and the telescopic assembly (56) is used for driving the handling member (522) to move relative to the roll-over stand (521).

6. A well servicing arrangement according to claim 1, characterized in that the well servicing arrangement further comprises a hydraulic tong mechanism (60), the hydraulic tong mechanism (60) being arranged on the work platform, the hydraulic tong mechanism (60) being adapted to disconnect or connect the pipe string, the hydraulic tong mechanism (60) comprising:

the supporting seat (61), the supporting seat (61) is arranged on the working platform (10);

the lifting frame (62) is movably arranged on the supporting seat (61);

the lifting driving piece (63) is in driving connection with the lifting frame (62), and the lifting driving piece (63) drives the lifting frame (62) to lift;

the sliding seat (64) is slidably arranged at the top end of the lifting frame (62);

the sliding driving piece (65) is in driving connection with the sliding seat (64), and the sliding driving piece (65) drives the sliding seat (64) to move relative to the lifting frame (62);

the hydraulic clamp (66), the hydraulic clamp (66) sets up on sliding seat (64), hydraulic clamp (66) are used for breaking apart or connecting the tubular column.

7. The well intervention device of claim 1, further comprising a splash guard (70), the splash guard (70) comprising a telescoping cylinder (71) and a waste collector, the telescoping cylinder (71) configured to be disposed around a periphery of the tubing string, the waste collector disposed below the telescoping cylinder (71).

8. A well servicing device according to claim 1, characterized in that the pipe handling mechanism (30) comprises a base body (31), a gripping manipulator (32), a telescopic manipulator (33) and a swing manipulator (34), the base body (31) being arranged on the working platform (10), the swing manipulator (34) being arranged on the base body (31), the telescopic manipulator (33) being connected with the swing manipulator (34), the gripping manipulator (32) being connected with the telescopic manipulator (33), the gripping manipulator (32) being adapted to grip the pipe string, the telescopic manipulator (33) cooperating with the swing manipulator (34) to push the pipe string to the pipe string transporting apparatus (40) or to pull back and right the pipe string from the pipe string transporting apparatus (40).

9. The well servicing device of claim 1, wherein the hoisting mechanism (20) comprises an elevator (21) and a workover rig (22), the workover rig (22) is disposed on one side of the working platform (10), the elevator (21) comprises a fixed mount (211), a clamping member (212) and a rotary driving member (213), the fixed mount (211) is connected to the workover rig (22) through a pulley assembly, the clamping member (212) is rotatably connected to the fixed mount (211), the rotary driving member (213) is disposed on the fixed mount (211), the rotary driving member (213) is drivingly connected to the clamping member (212) to drive the clamping member (212) to rotate around the fixed mount (211), and the clamping member (212) is used for clamping the tubular string.

10. A well intervention apparatus according to claim 1, further comprising a magazine (80), the magazine (80) being arranged on one side of the tubular string conveying device (40), the tubular string handling device (50) being arranged between the magazine (80) and the tubular string conveying device (40), the tubular string handling device (50) moving a tubular string on the tubular string conveying device (40) onto the magazine (80).

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