Modular pressure-operated workover rig

Abstract

The present application relates to a modular pressure - operated work machine. The modular pressure - operated work machine includes a working window device, a lifting device, a traveling device, an upper platform device, a mast device, a lower platform device, and a platform ladder. The working window device includes columns, a lower window plate, an upper window plate, and a fixed slip mechanism; the lifting device includes a lifting oil cylinder, and a bottom plate assembly and a top plate assembly arranged on the lifting oil cylinder; the traveling device includes a traveling window plate arranged at the top output end of the lifting oil cylinder, a rotating mechanism arranged on the traveling window plate, and a traveling slip mechanism arranged at the power output end of the rotating mechanism; the mast device includes a mast main body and a support mechanism arranged on the mast main body; the lower platform device is detachably arranged outside the working window device; the platform ladder is arranged between the upper platform device and the lower platform device; the modular pressure - operated work machine adopts a modular split structure, which can well meet the special working environment with limited lifting weight and transportation size.

Description

Technical Field

[0001] This application relates to the technical field of oil drilling and production, and particularly relates to a modular pressure - workover machine. Background Art

[0002] Pressure - workover is a process technology for forced workover operations while maintaining high well pressure in the well. Due to the environmental protection and high efficiency of pressure - workover, the utilization rate of pressure - workover machine technology in workover operations has been increasing year by year. At the same time, as the maturity of pressure - workover in land applications is getting higher and higher, the demand for applying pressure - workover technology to offshore platform operations is also increasing. However, directly applying land - used pressure - workover machines to offshore platforms has many deficiencies. The currently used pressure - workover machines on land are heavy, exceeding the operating capacity of the offshore platform cranes, and cannot be hoisted as a whole, which is not suitable for hoisting and use on offshore platforms. Summary of the Invention

[0003] The purpose of this application is to provide a modular pressure - workover machine. The modular pressure - workover machine adopts a modular split structure, which can well meet the special operating environment with limited lifting weight and transportation size.

[0004] To this end, an embodiment of this application provides a modular pressure - workover machine, including: a working window device, including a column, a lower window plate, an upper window plate, and a fixed slip mechanism. The upper window plate and the lower window plate are respectively arranged at the top and bottom of the column, and the fixed slip mechanism is arranged on the lower window plate; a lifting device, including a lifting cylinder, and a bottom plate assembly and a top plate assembly arranged on the lifting cylinder. The bottom plate assembly is detachably connected to the lower window plate; a traveling device, including a traveling window plate arranged at the top output end of the lifting cylinder, a rotating mechanism arranged on the traveling window plate, and a traveling slip mechanism arranged at the power output end of the rotating mechanism; an upper platform device, detachably arranged on the top of the top plate assembly; a mast device, including a mast main body and a support mechanism arranged on the mast main body. The bottom of the mast main body is detachably connected to the bottom plate assembly of the lifting device, and the support mechanism is detachably connected to the upper platform device; a lower platform device, detachably arranged outside the working window device; and a platform ladder, arranged between the upper platform device and the lower platform device.

[0005] In a possible implementation, guide columns are arranged on the top plate assembly; the upper platform device includes a lifting bracket and an upper platform arranged on the lifting bracket. A guide sleeve is arranged at the bottom of the lifting bracket, and the guide sleeve is inserted into the guide column and fixed by a first pin shaft.

[0006] In a possible implementation, a channel for the floating device to pass through is provided in the middle of the upper platform, and a vertical guide rail is provided in the channel; a guide groove slidably engaged with the guide rail is provided on the outer side of the floating window plate, and an antifriction plate is provided in the guide groove.

[0007] In a possible implementation, fixing lugs are provided on the upper window plate; guide lugs cooperating with the fixing lugs are provided at the bottom of the bottom plate assembly, the guide lugs and the fixing lugs are fixed by a second pin shaft, and a guide plate is provided on the outer side of the bottom plate assembly for abutting against the outer side of the upper window plate.

[0008] In a possible implementation, the lifting device further includes: a load-bearing slip mechanism provided on the bottom plate assembly; a fixing plate provided inside the lifting cylinder and located between the top plate assembly and the bottom plate assembly; and a downward pressure slip mechanism provided at the bottom of the fixing plate.

[0009] In a possible implementation, the load-bearing slip mechanism includes: a first chute guide rail laid on the bottom plate assembly; a load-bearing slip slidably arranged between the two first chute guide rails; a first support frame rotatably connected to the bottom plate assembly, the first support frame including a vertical state and a horizontal state; and a first oil cylinder provided on the first support frame, and the movable end of the first oil cylinder is used to connect the load-bearing slip.

[0010] In a possible implementation, the downward pressure slip mechanism includes: a second chute guide rail laid on the bottom of the fixing plate; a downward pressure slip slidably arranged between the two second chute guide rails; a second support frame rotatably connected to the fixing plate, the second support frame including a vertical state and a horizontal state; and a second oil cylinder provided on the second support frame, and the movable end of the second oil cylinder is used to connect the downward pressure slip.

[0011] In a possible implementation, the modular pressure-operated workover rig further includes a maintenance device provided outside the lifting device, and the maintenance device includes: a maintenance platform detachably connected to the lifting cylinder of the lifting device; and a maintenance ladder provided between the lower platform device and the maintenance platform, the maintenance ladder including a first maintenance ladder and a second maintenance ladder connected to the bottom of the first maintenance ladder, and the second maintenance ladder is connected to the lifting cylinder by a hinge.

[0012] In a possible implementation, a first mounting sleeve and a second mounting sleeve are provided on the upper platform, and the upper platform device further includes: a floating pipeline bridge, the bottom of the floating pipeline bridge is inserted into the first mounting sleeve; and a tong boom, the bottom of the tong boom is inserted into the second mounting sleeve.

[0013] In a possible implementation, the lower platform device includes a first platform and a second platform, the first platform and the second platform are respectively disposed on the upper window plate and the lower window plate, platform mounting lugs and support seats are respectively disposed on the upper window plate and the lower window plate, the two platform mounting lugs are respectively used for mounting the first platform and the second platform, and the two support seats are respectively used for abutting against the inner sides of the first platform and the second platform.

[0014] According to the modular pressure-operated work machine provided by the embodiment of the present application, the modular pressure-operated work machine divides the whole into several modules such as a work window device, a lifting device, a traveling device, an upper platform device, a mast device, a lower platform device, and a platform ladder, and is connected by a connection structure for quick installation and disassembly. Each module can be independently transported and hoisted, and the weight of a single module is light and the transportation size is small, which can well meet the special working environment with limited lifting weight and transportation size. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts. In addition, in the drawings, the same components are denoted by the same reference numerals, and the drawings are not drawn to actual scale.

[0016] Figure 1 FIG. 1 shows a schematic perspective view of a modular pressure-operated work machine provided by an embodiment of the present application;

[0017] Figure 2 FIG. 2 shows a schematic perspective view of a lifting bracket and an upper platform provided by an embodiment of the present application;

[0018] Figure 3 FIG. 3 shows a schematic perspective view of a traveling device provided by an embodiment of the present application;

[0019] Figure 4 Shows Figure 3 FIG. 4 shows a partial enlarged structural view of area B of the traveling device shown;

[0020] Figure 5 FIG. 5 shows a schematic perspective view of a lifting device provided by an embodiment of the present application;

[0021] Figure 6 Shows Figure 5 FIG. 6 shows a structural view when the first support frame and the second support frame are in a horizontal state;

[0022] Figure 7 Shows Figure 5 The structural schematic diagram when the first support frame and the second support frame are in a vertical state;

[0023] Figure 8 Shows Figure 1 The partial enlarged structural schematic diagram of area A of the modular pressure - operated work machine shown;

[0024] Figure 9 The three - dimensional structural schematic diagram of a working window device provided by an embodiment of the present application;

[0025] Figure 10 The three - dimensional structural schematic diagram of a mast device provided by an embodiment of the present application;

[0026] Figure 11 The three - dimensional structural schematic diagram of an upper platform provided by an embodiment of the present application;

[0027] Figure 12 The three - dimensional structural schematic diagram of a first platform or a second platform provided by an embodiment of the present application;

[0028] Figure 13 Shows Figure 12 The partial enlarged structural schematic diagram of area 3.

[0029] Explanation of reference numerals:

[0030] 1. Working window device; 11. Column; 12. Lower window plate; 13. Upper window plate; 14. Fixed chuck mechanism; 15. Platform mounting ear plate; 16. Support seat;

[0031] 2. Lifting device; 21. Lifting oil cylinder; 211. Wing nut; 22. Bottom plate assembly; 221. Guide ear plate; 222. Guide plate; 23. Top plate assembly; 231. Guide post; 24. Load - bearing chuck mechanism; 241. First slide rail; 242. Load - bearing chuck; 243. First support frame; 244. First oil cylinder; 25. Fixed plate; 26. Lower - pressing chuck mechanism;

[0032] 3. Swinging device; 31. Swinging window plate; 311. Guide groove; 312. Anti - friction plate; 32. Rotating mechanism; 33. Swinging chuck mechanism;

[0033] 4. Upper platform device; 41. Elevating bracket; 411. Guide sleeve; 412. First pin shaft; 42. Upper platform; 421. Guide rail; 422. First mounting sleeve; 423. Second mounting sleeve; 43. Swinging pipeline bridge; 44. Tong boom;

[0034] 5. Mast device; 51. Mast body; 511. Fixed pin; 52. Support mechanism;

[0035] 6. Lower platform device; 61. First platform; 62. Second platform; 63. Platform support;

[0036] 7. Platform ladder;

[0037] 8. Maintenance device; 81. Maintenance platform; 82. Maintenance ladder; 821. First maintenance ladder; 822. Second maintenance ladder. Detailed implementation manners

[0038] To make the objectives, technical solutions and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Apparently, the described embodiments are some but not all of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0039] Figure 1 Showing a three-dimensional structural schematic diagram of a modular pressure workover rig provided by an embodiment of this application; Figure 2 Showing a three-dimensional structural schematic diagram of a lifting bracket and an upper platform provided by an embodiment of this application; Figure 3 Showing a three-dimensional structural schematic diagram of a traveling device provided by an embodiment of this application; Figure 4 Showing Figure 3 A partial enlarged structural schematic diagram of area B of the shown traveling device; Figure 5 Showing a three-dimensional structural schematic diagram of a lifting device provided by an embodiment of this application; Figure 6 Showing Figure 5 A structural schematic diagram when the first support frame and the second support frame are in a horizontal state in; Figure 7 Showing Figure 5 A structural schematic diagram when the first support frame and the second support frame are in a vertical state in; Figure 8 Showing Figure 1 A partial enlarged structural schematic diagram of area A of the shown modular pressure workover rig; Figure 9 Showing a three-dimensional structural schematic diagram of a working window device provided by an embodiment of this application; Figure 10 Showing a three-dimensional structural schematic diagram of a mast device provided by an embodiment of this application; Figure 11 Showing a three-dimensional structural schematic diagram of an upper platform provided by an embodiment of this application; Figure 12 Showing a three-dimensional structural schematic diagram of a first platform or a second platform provided by an embodiment of this application; Figure 13 Showing Figure 12 A partial enlarged structural schematic diagram of area 3 of.

[0040] Such as Figures 1 to 13As shown in the figure, an embodiment of the present application provides a modular pressure - operated work machine, including: a working window device 1, a lifting device 2, a traveling device 3, an upper platform device 4, a mast device 5, a lower platform device 6, and a platform ladder 7, where:

[0041] The working window device 1 includes a column 11, a lower window plate 12, an upper window plate 13, and a fixed slip mechanism 14. The upper window plate 13 and the lower window plate 12 are respectively arranged at the top and bottom of the column 11, and the fixed slip mechanism 14 is arranged on the lower window plate 12.

[0042] The lifting device 2 includes a lifting oil cylinder 21, a bottom plate assembly 22, and a top plate assembly 23 arranged on the lifting oil cylinder 21. The bottom plate assembly 22 is detachably connected to the lower window plate 12.

[0043] The traveling device 3 includes a traveling window plate 31 arranged at the top output end of the lifting oil cylinder 21, a rotating mechanism 32 arranged on the traveling window plate 31, and a traveling slip mechanism 33 arranged at the power output end of the rotating mechanism 32.

[0044] The upper platform device 4 is detachably arranged on the top of the top plate assembly 23.

[0045] The mast device 5 includes a mast main body 51 and a support mechanism 52 arranged on the mast main body 51. The bottom of the mast main body 51 is detachably connected to the bottom plate assembly 22 of the lifting device 2, and the support mechanism 52 is detachably connected to the upper platform device 4.

[0046] The lower platform device 6 is detachably arranged outside the working window device 1.

[0047] The platform ladder 7 is arranged between the upper platform device 4 and the lower platform device 6.

[0048] In the present application, by dividing the whole into several modules such as the working window device 1, the lifting device 2, the traveling device 3, the upper platform device 4, the mast device 5, the lower platform device 6, and the platform ladder 7, and using a connection structure with quick installation and disassembly for connection, each module can be independently transported and hoisted. The weight of a single module is relatively light and the transportation size is small, which can well meet the special working environment with limited lifting weight and transportation size.

[0049] Specifically, by reasonably splitting the pressure - operated work machine into several modules, it can not only ensure the weight and size of a single module, but also ensure subsequent quick disassembly and assembly.

[0050] In the present application, the lowering and lifting of the oil pipe are completed through the cooperation of the fixed slip mechanism 14 and the traveling slip mechanism 33. The rotating mechanism 32 can drive the traveling slip mechanism 33 to rotate for installing or disassembling two sections of oil pipes.

[0051] Specifically, a mast support ear plate is provided on the bottom plate assembly 22. The mast support ear plate is designed with a U-shaped opening. A fixing pin 511 is provided on the outer side of the mast body 51. Before inserting the fixing pin 511 at the lower end of the mast into the U-shaped groove, the lower end of the mast is pushed towards the long side of the U-shaped groove. Under the guiding action of the long side, the fixing pin shaft can be smoothly inserted into the U-shaped groove. The installation of the mast body 51 is convenient and quick. Then, it is connected to the upper platform device 4 through the support mechanism 52, thereby completing the fixation of the mast device 5.

[0052] In some embodiments, a guiding column 231 is provided on the top plate assembly 23; the upper platform device 4 includes a lifting bracket 41 and an upper platform 42 provided on the lifting bracket 41. A guiding sleeve 411 is provided at the bottom of the lifting bracket 41. The guiding sleeve 411 is inserted into the guiding column 231 and fixed by a first pin shaft 412.

[0053] In this application, by hoisting the lifting bracket 41 above the lifting device 2, the guiding column 231 is inserted into the guiding sleeve 411, so that the lifting bracket 41 and the lifting device 2 are precisely matched. Then, the guiding column 231 and the guiding sleeve 411 are locked by the first pin shaft 412, thereby completing the assembly of the lifting bracket 41 and the lifting device 2.

[0054] Optionally, the lifting bracket 41 and the upper platform 42 of the upper platform device 4 are also assembled by inserting. During installation, it can be selected whether to use the lifting bracket 41 according to the actual situation. If the lifting bracket 41 is not needed, the guiding column 231 can be inserted into the guiding sleeve 411 at the bottom of the upper platform 42. If the lifting bracket 41 is needed, the lifting bracket 41 and the upper platform 42 can be assembled in sequence, or the assembled lifting bracket 41 and upper platform 42 can be integrally assembled onto the lifting device 2.

[0055] In some embodiments, a channel for the traveling device 3 to pass through is provided in the middle of the upper platform 42. A vertical guide rail 421 is provided in the channel; a guiding groove 311 slidably matched with the guide rail 421 is provided on the outer side of the traveling window plate 31. An anti-friction plate 312 is provided in the guiding groove 311.

[0056] In this application, the cooperation between the guiding groove 311 and the guide rail 421 of the traveling device 3 enables the traveling device 3 to move up and down smoothly, effectively reducing the overall machine vibration caused by the traveling device 3 during the up and down movement of the lifting cylinder 21, and improving the smoothness of the workover operation; when the driving mechanism in the traveling device 3 drives the pipe string to rotate, a reverse torque acting force is generated on the driving mechanism. Through the guiding groove 311 and the guide rail 421, it is transmitted to the upper platform device 4 and the lifting device 2, reducing the reverse acting force on the rod of the lifting cylinder 21, reducing the eccentric wear of the oil cylinder seal, and improving the service life of the lifting cylinder 21.

[0057] Specifically, an anti-friction plate 312 is arranged in the guiding groove 311 to slidably cooperate with the guiding rail 421, improving the wear resistance and thus ensuring the service life of the guiding groove 311 and the guiding rail 421.

[0058] Among them, the number of the guiding grooves 311 and the guiding rails 421 can be selected according to the actual situation. Preferably, the guiding grooves 311 and the guiding rails 421 are symmetrically arranged on the outer side of the floating boat plate.

[0059] In one embodiment, the floating device 3 is connected to the piston rod of the lifting oil cylinder 21 by a wing nut 211. There is no need to use a wrench, and the nut can be loosened by knocking on the nut flank with a hammer. Loosening the nut is convenient and fast; the wing nut 211 and the top of the piston rod adopt a trapezoidal thread, and the thread rotation resistance is small. The nut can be screwed out or screwed in manually, which is convenient and fast.

[0060] In some embodiments, fixing lugs 131 are arranged on the upper window plate 13; a guiding lug 221 that cooperates with the fixing lug 131 is arranged at the bottom of the bottom plate assembly 22. The guiding lug 221 and the fixing lug 131 are fixed by a second pin shaft. A guiding plate 222 is arranged on the outer side of the bottom plate assembly 22 for abutting against the outer side of the upper window plate 13.

[0061] Specifically, the guiding plate 222 has a structure that is wider at the bottom and narrower inside. When installing the lifting device 2 on the upper part of the working window device 1, it effectively ensures that the centers of the lifting device 2 and the working window device 1 are concentric, prevents the lifting device 2 and the working window device 1 from moving horizontally, facilitates the passage of oil pipes and tools. After the holes of the fixing lug 131 and the guiding lug 221 are aligned, the fixing lug 131 and the guiding lug 221 are locked by a second pin shaft.

[0062] In some embodiments, the lifting device 2 further includes: a load-bearing chuck mechanism 24, a fixing plate 25, and a downward pressure chuck mechanism 26, where:

[0063] The load-bearing chuck mechanism 24 is arranged on the bottom plate assembly 22.

[0064] The fixing plate 25 is arranged inside the lifting oil cylinder 21 and is located between the top plate assembly 23 and the bottom plate assembly 22.

[0065] The downward pressure chuck mechanism 26 is arranged at the bottom of the fixing plate 25.

[0066] Among them, the load-bearing chuck mechanism 24 and the downward pressure chuck mechanism 26 are used to install the valves of some oil pipes. Specifically, when the gravity of the oil pipe is greater than the well pressure, the load-bearing chuck mechanism 24 is needed. When the gravity of the oil pipe is less than the upward force in the well, the downward pressure chuck mechanism 26 is needed.

[0067] Further, the load-bearing slip mechanism 24 includes: a first chute guide rail 241 laid on the bottom plate assembly 22; a load-bearing slip 242 slidably arranged between two first chute guide rails 241; a first support frame 243 rotatably connected to the bottom plate assembly 22, the first support frame 243 including a vertical state and a horizontal state; and a first oil cylinder 244 arranged on the first support frame 243, the movable end of the first oil cylinder 244 being used to connect the load-bearing slip 242.

[0068] In this application, in the working state, the first support frame 243 is folded into a horizontal state, and the movable end of the first oil cylinder 244 is connected to the load-bearing slip 242, so that the first oil cylinder 244 can drive the load-bearing slip 242 to slide along the first chute guide rail 241, and the load-bearing slip 242 can be quickly pushed to the wellhead center or pulled out of the wellhead center, which is convenient and fast; during transportation, the movable end of the first oil cylinder 244 can be separated from the load-bearing slip 242, and then the first support frame 243 is folded into a vertical state, reducing the occupied space, meeting the operation requirements and reducing the external dimensions during transportation.

[0069] Further, the pressing slip mechanism 26 includes: a second chute guide rail laid on the bottom of the fixing plate 25; a pressing slip slidably arranged between two second chute guide rails; a second support frame rotatably connected to the fixing plate 25, the second support frame including a vertical state and a horizontal state; and a second oil cylinder arranged on the second support frame, the movable end of the second oil cylinder being used to connect the pressing slip.

[0070] In this application, in the working state, the second support frame is folded into a horizontal state, and the movable end of the second oil cylinder is connected to the pressing slip, so that the second oil cylinder can drive the pressing slip to slide along the second chute guide rail, and the pressing slip can be quickly pushed to the wellhead center or pulled out of the wellhead center, which is convenient and fast; during transportation, the movable end of the second oil cylinder can be separated from the pressing slip, and then the second support frame is folded into a vertical state, reducing the occupied space, meeting the operation requirements and reducing the external dimensions during transportation.

[0071] In some embodiments, the modular pressure-operated workover rig further includes a maintenance device 8 arranged outside the lifting device 2. The maintenance device 8 includes: a maintenance platform 81 detachably connected to the lifting oil cylinder 21 of the lifting device 2; and a maintenance ladder 82 arranged between the lower platform device 6 and the maintenance platform 81. The maintenance ladder 82 includes a first maintenance ladder 821 and a second maintenance ladder 822 connected to the bottom of the first maintenance ladder 821. The second maintenance ladder 822 is connected to the lifting oil cylinder 21 through a hinge.

[0072] In the present application, the maintenance platform 81 is used to facilitate component maintenance, and personnel can install and remove the upper platform 42 and the lifting bracket 41 on the platform; the maintenance platform 81 includes a left maintenance platform 81 and a right maintenance platform 81, and the left maintenance platform 81 and the right maintenance platform 81 are fixed to the lifting device 2 by a pin shaft, which is convenient for installing and removing the maintenance platform 81. The maintenance ladder 82 is used to facilitate climbing onto the maintenance platform 81 on the lower platform device 6. Specifically, the maintenance ladder 82 connects the right maintenance platform 81 and the lower platform device 6, and the platform ladder 7 connects the upper platform device 4 and the lower platform device 6. An opening is set in the middle of the platform ladder 7 to connect the left maintenance platform 81. The maintenance ladder 82 includes a first maintenance ladder 821 and a second maintenance ladder 822. The first maintenance ladder 821 is connected to the lifting cylinder 21 by a clamp, and the second maintenance ladder 822 is connected to the lifting cylinder 21 by a hinge. The second maintenance ladder 822 can be flipped over and rotated inward, and personnel can climb to the right maintenance platform 81 normally. The second maintenance ladder 822 is rotated outward to open the pushing and pulling space of the downward pressing slip and the load-bearing slip 242 to facilitate the installation and disassembly of the slip.

[0073] In some embodiments, a first mounting sleeve 422 and a second mounting sleeve 423 are provided on the upper platform 42, and the upper platform device 4 also includes: a floating pipeline bridge 43, the bottom of which is plugged into the first mounting sleeve 422; and a large clamp boom 44, the bottom of which is plugged into the second mounting sleeve 423.

[0074] In the present application, the bottom of the traveling pipeline bridge 43 is inserted into the first installation sleeve 422, so that the traveling pipeline bridge 43 and the upper platform 42 can be assembled, and the bottom of the tong boom 44 is inserted into the second installation sleeve 423, so that the tong boom 44 and the upper platform 42 can be assembled. Optionally, the traveling pipeline bridge and / or the tong boom can also be directly assembled with the upper platform.

[0075] In some embodiments, the lower platform device 6 includes a first platform 61 and a second platform 62, and the first platform 61 and the second platform 62 are respectively arranged on the upper window panel 13 and the lower window panel 12, and the upper window panel 13 and the lower window panel 12 are respectively provided with platform mounting ear plates 15 and support seats 16, the two platform mounting ear plates 15 are respectively used to install the first platform 61 and the second platform 62, and the two support seats 16 are respectively used to abut the inner side of the first platform 61 and the inner side of the second platform 62. Specifically, the inner sides of the first platform 61 and the second platform 62 are provided with platform supports 63 for abutting the support seats 16.

[0076] In the present application, the installation of the first platform 61 and the second platform 62 is completed by the cooperation of the platform mounting ear plate 15 and the pin shaft, and the cooperation of the platform support 63 and the support seat 16 can effectively prevent the platform from tilting and reduce the platform vibration.

[0077] The first platform 61 facilitates the connection of the lifting device 2 and the connecting pin shaft between the working windows during installation and provides a maintenance space for components such as slips.

[0078] In this application, the fixed slip mechanism 14 in the working window device 1 includes a fixed load-bearing slip 242 and a fixed downward pressure slip, and the floating slip mechanism 33 includes a floating load-bearing slip 242 and a floating downward pressure slip, which can overcome the upward acting force generated by the high pressure in the well on the pipe string and clamp the pipe string, enabling the equipment to have the ability to install and disassemble downhole tool strings under high well pressure.

[0079] Optionally, the fixed plate 25 in the working window device 1 is a detachable structure. When the weight of the pipe string is greater than the upward acting force generated by the well pressure on the pipe string, the fixed plate 25 can be removed to facilitate the installation and disassembly of long tool strings.

[0080] This modular pressure-operated workover rig divides the whole into several major modules including the working window device 1, the lifting device 2, the floating device 3, the upper platform device 4, the mast device 5, the lower platform device 6, and the platform ladder 7, and uses a connection structure for quick installation and disassembly. Each module can be transported and hoisted independently, and the weight of a single module is light and the transportation size is small, which can well meet the special working environment with limited lifting weight and transportation size.

[0081] It should be noted that phrases such as "an embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment includes such specific features, structures, or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. Moreover, when combining specific features, structures, or characteristics with an embodiment, it is within the knowledge scope of those skilled in the art to implement such features, structures, or characteristics in combination with other embodiments, whether explicitly or implicitly described.

[0082] It should be easily understood that the terms "on...", "above...", and "over..." in this disclosure should be interpreted in the broadest manner, such that "on..." not only means "directly on something", but also includes the meaning of "on something" with intermediate features or layers therebetween, and "above..." or "over..." not only includes the meaning of "above or over something", but may also include the meaning of "above or over something" with no intermediate features or layers therebetween (i.e., directly on something).

[0083] In addition, for ease of description, spatial relative terms may be used in this document, such as "below", "beneath", "under", "above", "over", etc., to describe the relationship of one element or feature to another as shown in the figures. Spatial relative terms are intended to encompass different orientations of the device in use or operation other than the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatial relative descriptors used in this document may be interpreted accordingly.

[0084] It should be noted that in this document, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A modular pressure-operated work machine, characterized in that, Comprising: A working window device (1), including a column (11), a lower window plate (12), an upper window plate (13) and a fixed slip mechanism (14). The upper window plate (13) and the lower window plate (12) are respectively arranged at the top and bottom of the column (11), and the fixed slip mechanism (14) is arranged on the lower window plate (12); A lifting device (2), including a lifting oil cylinder (21) and a bottom plate assembly (22) and a top plate assembly (23) arranged on the lifting oil cylinder (21). The bottom plate assembly (22) is detachably connected to the lower window plate (12); A traveling device (3), including a traveling window plate (31) arranged at the top output end of the lifting oil cylinder (21), a rotating mechanism (32) arranged on the traveling window plate (31) and a traveling slip mechanism (33) arranged at the power output end of the rotating mechanism (32); An upper platform device (4), detachably arranged on the top of the top plate assembly (23); A mast device (5), including a mast main body (51) and a support mechanism (52) arranged on the mast main body (51). The bottom of the mast main body (51) is detachably connected to the bottom plate assembly (22) of the lifting device (2), and the support mechanism (52) is detachably connected to the upper platform device (4); A lower platform device (6), detachably arranged outside the working window device (1); and A platform ladder (7), arranged between the upper platform device (4) and the lower platform device (6); The upper platform device (4) includes an upper platform (42). A passage for the traveling device (3) to pass through is arranged in the middle of the upper platform (42), and a vertical guide rail (421) is arranged in the passage; A guide groove (311) slidably matched with the guide rail (421) is arranged on the outer side of the traveling window plate (31), and an anti-friction plate (312) is arranged in the guide groove (311).

2. The modular pressure-operated work machine according to claim 1, characterized in that, A guide post (231) is arranged on the top plate assembly (23); The upper platform device (4) includes a lifting bracket (41). The upper platform (42) is formed on the lifting bracket (41). A guide sleeve (411) is arranged at the bottom of the lifting bracket (41). The guide sleeve (411) is inserted into the guide post (231) and fixed by a first pin shaft (412).

3. The modular pressure-operated work machine according to claim 1, characterized in that, A fixed ear plate (131) is arranged on the upper window plate (13); A guide ear plate (221) matched with the fixed ear plate (131) is arranged at the bottom of the bottom plate assembly (22). The guide ear plate (221) and the fixed ear plate (131) are fixed by a second pin shaft. A guide plate (222) is arranged on the outer side of the bottom plate assembly (22) for abutting against the outer side of the upper window plate (13).

4. The modular pressure-operated work machine according to claim 1, characterized in that, The lifting device (2) further includes: A load-bearing slip mechanism (24), arranged on the bottom plate assembly (22); A fixing plate (25), arranged inside the lifting oil cylinder (21) and located between the top plate assembly (23) and the bottom plate assembly (22); and The downward pressing slip mechanism (26) is arranged at the bottom of the fixed plate (25).

5. The modular pressure-operated work machine according to claim 4, characterized in that, The load-bearing slip mechanism (24) includes: The first chute guide rail (241) is laid on the bottom plate assembly (22); The load-bearing slip (242) is slidably arranged between the two first chute guide rails (241); The first support frame (243) is rotatably connected to the bottom plate assembly (22), and the first support frame (243) includes a vertical state and a horizontal state; and The first oil cylinder (244) is arranged on the first support frame (243), and the movable end of the first oil cylinder (244) is used to connect the load-bearing slip (242).

6. The modular pressure-operated work machine according to claim 4, wherein, The downward pressing slip mechanism (26) includes: The second chute guide rail is laid on the bottom of the fixed plate (25); The downward pressing slip is slidably arranged between the two second chute guide rails; The second support frame is rotatably connected to the fixed plate (25), and the second support frame includes a vertical state and a horizontal state; and The second oil cylinder is arranged on the second support frame, and the movable end of the second oil cylinder is used to connect the downward pressing slip.

7. The modular pressure-operated work machine according to claim 1, characterized in that The modular pressure-operated work machine further includes a maintenance device (8) arranged outside the lifting device (2), and the maintenance device (8) includes: The maintenance platform (81) is detachably connected to the lifting oil cylinder (21) of the lifting device (2); and The maintenance ladder (82) is arranged between the lower platform device (6) and the maintenance platform (81), and the maintenance ladder (82) includes a first maintenance ladder (821) and a second maintenance ladder (822) connected to the bottom of the first maintenance ladder (821), and the second maintenance ladder (822) is connected to the lifting oil cylinder (21) through a hinge.

8. The modular pressure-operated work machine according to claim 2, wherein The upper platform (42) is provided with a first mounting sleeve (422) and a second mounting sleeve (423), and the upper platform device (4) further includes: The traveling pipeline bridge (43), the bottom of the traveling pipeline bridge (43) is inserted into the first mounting sleeve (422); and The tong boom (44), the bottom of the tong boom (44) is inserted into the second mounting sleeve (423).

9. The modular pressure-operated work machine according to claim 1, characterized in that, The lower platform device (6) includes a first platform (61) and a second platform (62), the first platform (61) and the second platform (62) are respectively arranged on the upper window plate (13) and the lower window plate (12), the upper window plate (13) and the lower window plate (12) are respectively provided with platform mounting lugs (15) and support seats (16), and the two platform mounting lugs (15) are respectively used to mount the first platform (61) and the second platform (62), and the two support seats (16) are respectively used to abut against the inner sides of the first platform (61) and the second platform (62).

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