BOP hydraulic mounting device and mounting method thereof

Abstract

The invention relates to a BOP hydraulic installation device and an installation method thereof, and relates to the field of petroleum drilling technology, the BOP hydraulic installation device comprises a base, a hydraulic station and an operation table are arranged on the base; the position adjusting mechanism is arranged on the base, connected to the hydraulic station and used for moving, rotating, overturning and fixing the BOP; and the leveling mechanism is arranged on the base, connected to the hydraulic station and used for keeping the BOP upper connecting flange flush with the shaft upper connecting flange. The device has the beneficial effects that a worker can conveniently operate underwater to achieve accurate butt joint and fixation of a connecting flange on a BOP and a connecting flange on a shaft, the labor intensity is relieved, meanwhile, the operation safety is improved, and follow-up overhaul and maintenance work on the BOP is facilitated.

Description

Technical Field

[0001] The present application relates to the field of oil drilling technology, and in particular to a BOP hydraulic installation device and an installation method thereof. Background Art

[0002] BOP is the abbreviation of Blowout Preventer. BOP is a safety device used to prevent oil or gas wells from blowing out and avoid blowout accidents. It is usually installed on the wellbore of a drilling well to seal or control the pressure at the wellhead of the wellbore. BOP can quickly seal the wellhead when an abnormal situation occurs at the wellhead, preventing the well fluid or gas from blowing out, and protecting the drilling operators and the environment.

[0003] At present, BOP can play a key role in safety protection. BOP mainly includes connecting flanges, control systems, valves, etc. During installation, the commonly used installation method mainly relies on large-scale lifting equipment and manual operation to accurately dock and fix the connecting flanges on the BOP and the connecting flanges on the wellbore. However, in underwater operations, to achieve accurate docking and fixation of the BOP and the flanges on the wellbore, it requires a lot of physical strength of the staff, and the operation process is cumbersome, there are great safety risks, and it is not convenient for subsequent inspection and maintenance work. Summary of the invention

[0004] In order to facilitate underwater operations by workers to achieve precise docking and fixation of the connecting flange on the BOP and the connecting flange on the wellbore, reduce labor intensity while improving operational safety, and facilitate subsequent inspection and maintenance of the BOP, the present application provides a BOP hydraulic installation device and an installation method thereof.

[0005] The present application provides a BOP hydraulic installation device and an installation method thereof, which adopts the following technical solutions: In a first aspect, the present application provides a BOP hydraulic installation device, comprising: A base, on which a hydraulic station and an operating table are arranged; The position adjustment mechanism is arranged on the base and connected to the hydraulic station to realize the movement, rotation, flipping and fixing of the BOP; The leveling mechanism is arranged on the base and connected to the hydraulic station, and is used to ensure that the connecting flange on the BOP is flush with the connecting flange on the wellbore.

[0006] By adopting the above technical solution, when the staff performs docking and fixing of the BOP to the wellbore underwater, the BOP is first fixed by the position adjustment mechanism, and the installation device is hoisted as a whole to the predetermined underwater position. Then the staff drives the BOP to move by the position adjustment mechanism, so that the BOP moves toward the well center of the wellbore until it initially reaches the well center position, and then flips the BOP so as to accurately position the BOP to the position where it needs to be installed. Then the position between the connecting flange on the BOP and the connecting flange on the wellbore is adjusted by the leveling mechanism so that the two are kept flush, and then the rotation angle of the BOP is adjusted again by the position adjustment mechanism so that the bolt holes of the connecting flange on the BOP are aligned with the bolt holes of the connecting flange on the wellbore. , and fix it by fastening bolts through the bolt holes, and finally complete the installation of the remaining pipelines; the hydraulic station is the power source for the operation of the entire installation device, and the structure of the hydraulic station is relatively simple, without complex electronic components, so it is less susceptible to moisture, humidity or water pressure in an underwater environment, thereby improving the reliability of system operation; at the same time, through the coordinated use of the position adjustment mechanism and the leveling mechanism, the staff can quickly and easily operate underwater to achieve accurate docking and fixation of the connecting flange on the BOP and the connecting flange on the wellbore, and the adjustment process only requires the staff to operate the operating table, which reduces the labor intensity of the staff while improving operational safety, and facilitates subsequent inspection and maintenance of the BOP.

[0007] Optionally, the position adjustment mechanism includes: A sliding seat is arranged above the base at intervals; A lifting frame is spaced apart at a side of the sliding seat away from the base and abuts against the BOP; The horizontal and vertical adjustment component is arranged between the base and the sliding seat, and is used to drive the sliding seat to move horizontally or vertically; The flip assembly is arranged between the sliding seat and the lifting frame, and is used to drive the lifting frame to rotate to a vertical or horizontal state; The lifting assembly is arranged between the lifting frame and the flip assembly, and is used to drive the lifting frame to move up and down in the height direction; The rotating assembly is arranged between the lifting frame and the BOP and is used to drive the BOP to rotate; The fixing assembly is arranged on one side of the lifting frame and is used to fix the BOP.

[0008] By adopting the above technical solution, when the bolt holes of the connecting flange on the BOP are aligned with the bolt holes of the connecting flange on the wellbore through the position adjustment mechanism, first, the staff controls the sliding seat to move horizontally or vertically through the horizontal and vertical adjustment components to position the BOP to the expected position, then rotates the lifting frame and the BOP to a vertical state through the flip assembly, and then controls the lifting frame to move up and down in the height direction through the lifting assembly to adjust the height of the BOP so that the connecting flange on the BOP abuts against the connecting flange on the wellbore, and at the same time, the BOP is rotated by the rotating assembly to align the bolt holes of the connecting flange; wherein, through the coordinated use of the horizontal and vertical adjustment components, the flip assembly, the lifting assembly and the rotating assembly, the staff can accurately position and adjust the BOP, including moving, rotating, flipping and lifting, so as to accurately control the alignment of the connecting flange on the BOP with the connecting flange of the wellbore, and at the same time, the precise control and rapid operation can reduce the time of the staff working underwater and reduce potential safety risks. In addition, when the BOP fails, the staff can quickly remove the BOP through the position adjustment mechanism, so as to facilitate subsequent maintenance and overhaul work and reduce the difficulty of maintenance and overhaul.

[0009] Optionally, the transverse and longitudinal adjustment component includes: A mobile frame, slidably connected to the base; A transverse hydraulic cylinder is arranged between the base and the mobile frame and is connected to the hydraulic station; A longitudinal hydraulic cylinder is arranged between the moving frame and the sliding seat and is connected to the hydraulic station; The moving directions of the moving frame and the sliding seat are perpendicular to each other.

[0010] By adopting the above technical solution, when the sliding seat is controlled to move horizontally or vertically by the horizontal and vertical adjustment components to move the BOP to the expected position, the staff first drives the horizontal hydraulic cylinder through the hydraulic station to drive the mobile frame to move horizontally to adjust the horizontal position of the BOP, and then drives the longitudinal hydraulic cylinder through the hydraulic station to drive the sliding seat to move horizontally and vertically to adjust the longitudinal position of the BOP; wherein the staff can independently adjust the position of the BOP in two directions according to the working requirements, so that on the one hand, the BOP can be accurately positioned to the required position, and on the other hand, it can adapt to complex or irregular working environments.

[0011] Optionally, the flip assembly includes: The turning frame is arranged between the sliding seat and the lifting frame, the turning frame is hinged to the sliding seat, and the turning frame is slidably connected to the lifting frame; The turning hydraulic cylinder is hinged between the sliding seat and the turning frame and is communicated with the hydraulic station.

[0012] By adopting the above technical solution, when the BOP is turned over by the turning assembly, the staff first applies pressure to the turning hydraulic cylinder through the hydraulic station through the hydraulic pipeline, and the turning hydraulic cylinder can push the turning frame to rotate relative to the sliding seat until the BOP is turned over to a vertical state or a horizontal state; when the turning frame is turned over to a horizontal state, it is convenient for the staff to fix the BOP, and when it is turned over to a vertical state, it is convenient for the staff to connect the BOP with the wellbore.

[0013] Optionally, the lifting assembly includes: A guide rail is fixedly mounted on the turning frame, and the lifting frame is slidably connected to the guide rail; The lifting hydraulic cylinder is arranged between the lifting frame and the turning frame and is connected with the hydraulic station.

[0014] By adopting the above technical solution, when the BOP is driven to move up and down by the lifting assembly, the hydraulic station first applies pressure to the lifting hydraulic cylinder through the hydraulic pipeline, and then the lifting hydraulic cylinder can drive the lifting frame to move up and down in the vertical direction; wherein the guide rail imposes a limit on the lifting frame, so that the lifting frame is not easy to shake or deviate when moving.

[0015] Optionally, the rotating assembly includes: A support seat, fixed on the lifting frame; A rotary hydraulic motor is arranged on a support base and connected to a hydraulic station; A rotating frame is arranged below the rotating hydraulic motor and connected to the output end of the rotating hydraulic motor; The clamping component is arranged between the rotating frame and the BOP and is used for clamping the BOP.

[0016] By adopting the above technical solution, when the BOP is rotated by the rotating assembly so that the bolt holes of the connecting flange on the BOP and the connecting flange on the wellbore are aligned, the staff first applies power to the rotating hydraulic motor through the hydraulic station, and then the rotating hydraulic motor starts to run, driving the rotating frame to start rotating, and then the rotating frame drives the clamping component and the BOP to rotate, so that the bolt holes of the connecting flange on the BOP and the connecting flange on the wellbore are aligned.

[0017] Optionally, the clamping component includes: A clamping plate is arranged on one side of the rotating frame, and a plurality of clamping plates are arranged; A rotating screw is threadedly connected to the rotating frame and is rotationally connected to the clamping plate; The guide rod is arranged between the clamping plate and the rotating frame, one end of the guide rod is fixedly connected to the clamping plate, and the other end is slidably connected to the rotating frame, and a scale is arranged on the guide rod.

[0018] By adopting the above technical solution, the staff can move the clamping plate to the side close to the BOP under the action of the guide rod by rotating the rotating screw, so as to clamp one end of the BOP between the two clamping plates; wherein a scale is provided on the guide rod, and the staff can adjust the position and clamping force of the clamping plate by observing the scale value on the scale, and at the same time, it is convenient to keep the center of the rotating frame consistent with the rotation center of the connecting flange on the BOP.

[0019] Optionally, the fixing assembly includes two fixing half rings symmetrically hinged on the lifting frame, a plurality of rollers rotatably connected to the fixing half rings, a connecting seat fixed on the fixing half rings, and a connecting bolt arranged between the two connecting seats; The BOP is provided with a fixing groove, the fixing half ring is clamped into the fixing groove, and the roller can roll in the fixing groove.

[0020] By adopting the above technical solution, when fixing the BOP through the fixing assembly, the hinged parts of the two fixing half rings are firstly clamped symmetrically in the fixing grooves of the BOP, and then the connecting seat is fixed by connecting bolts; wherein the roller is located in the fixing groove and rolls with the rotation of the BOP, thereby reducing the friction between the fixing half rings and the BOP, making the BOP rotate more smoothly.

[0021] Optionally, the leveling mechanism includes a plurality of lifting hydraulic motors arranged on the base, a lifting screw fixedly mounted on the output end of the lifting hydraulic motor, a lifting sleeve threadedly mounted on the outside of the lifting screw, a leveling seat fixedly mounted on the lifting sleeve, and a telescopic rod fixedly mounted between the base and the leveling seat, and the lifting hydraulic motor is connected to the hydraulic station.

[0022] By adopting the above technical solution, when the base is leveled by the leveling mechanism, the staff first starts the lifting hydraulic motor, and the lifting hydraulic motor drives the lifting screw to start rotating, and the lifting screw can drive the lifting sleeve and the leveling seat to rise or fall, and then starts multiple lifting hydraulic motors respectively until the base reaches a horizontal state; the leveling mechanism can realize fast and accurate leveling of the base, ensuring that the base can maintain a stable horizontal position in different working scenarios, thereby improving the applicability and flexibility of the equipment, and the lifting hydraulic motor is connected to the hydraulic station, realizing the integrated management of the leveling mechanism and the entire hydraulic system, which is convenient for monitoring, control and maintenance of the entire installation device.

[0023] In a second aspect, the present application provides an installation method of a BOP hydraulic installation device, which is applicable to the above-mentioned BOP hydraulic installation device, and the installation steps are as follows: S1. Install the BOP on the position adjustment mechanism; S2, hoisting the installation device as a whole to a predetermined underwater position; S3, start the hydraulic station; S4, driving the BOP to move toward the well center of the wellbore through the position adjustment mechanism until the BOP reaches the well center position initially, and then flipping the BOP so as to accurately position the BOP to be installed; S5. Use the leveling mechanism to adjust the position between the connecting flange on the BOP and the connecting flange on the wellbore so that the two remain flush; S6. Adjust the rotation angle of the BOP through the position adjustment mechanism so that the bolt holes of the connection flange on the BOP are aligned with the bolt holes of the connection flange on the wellbore, and fasten them by passing the fastening bolts through the bolt holes; S7, close the hydraulic station; S8. Complete the installation of the remaining pipelines.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. The hydraulic station is the power source for the entire installation device, and the structure of the hydraulic station is relatively simple, without complex electronic components, so it is less susceptible to moisture, humidity or water pressure in the underwater environment, thereby improving the reliability of the system operation; at the same time, through the coordinated use of the position adjustment mechanism and the leveling mechanism, the staff can quickly and conveniently operate underwater to achieve accurate docking and fixation of the connecting flange on the BOP and the connecting flange on the wellbore, and the adjustment process only requires the staff to operate the operating table, which reduces the labor intensity of the staff while improving the operational safety, and facilitates the subsequent inspection and maintenance of the BOP; 2. Through the coordinated use of the horizontal and vertical adjustment components, the flipping components, the lifting components and the rotating components in the position adjustment mechanism, the staff can accurately position and adjust the BOP, including moving, rotating, flipping and lifting, so as to accurately control the alignment of the connecting flange on the BOP and the connecting flange of the wellbore. At the same time, precise control and rapid operation can reduce the time of underwater operation of the staff and reduce potential safety risks. In addition, when the BOP fails, the staff can quickly dismantle the BOP through the position adjustment mechanism, which is convenient for subsequent maintenance and overhaul work and reduces the difficulty of maintenance and overhaul; 3. The leveling mechanism can realize fast and accurate leveling of the base, ensuring that the base can maintain a stable horizontal position in different working scenarios, improving the applicability and flexibility of the equipment. The lifting hydraulic motor is connected to the hydraulic station, realizing the integrated management of the leveling mechanism and the entire hydraulic system, facilitating the monitoring, control and maintenance of the entire installation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the BOP hydraulic installation device in this application; Figure 21 is a schematic diagram showing a partial structure of a position adjustment mechanism; Figure 3 is a partial cross-sectional schematic diagram showing a position adjustment mechanism; Figure 4 It is a schematic diagram showing the structure when the fixed component is in an open state; Figure 5 It is a partial cross-sectional schematic diagram showing the leveling mechanism.

[0026] Description of reference numerals: 1. base; 2. hydraulic station; 3. position adjustment mechanism; 31. sliding seat; 32. lifting frame; 33. horizontal and vertical adjustment assembly; 331. moving frame; 332. T-type track; 333. slide rail; 334. horizontal hydraulic cylinder; 335. vertical hydraulic cylinder; 34. flip assembly; 341. flip frame; 342. flip hydraulic cylinder; 35. lifting assembly; 36. rotating assembly; 361. support seat; 362. rotating Hydraulic motor; 363, rotating frame; 364, clamping part; 3641, clamping plate; 3642, rotating screw; 3643, rotating part; 3644, guide rod; 37, fixing assembly; 371, fixing half ring; 372, roller shaft; 373, connecting seat; 374, connecting bolt; 4, BOP; 5, leveling mechanism; 51, lifting hydraulic motor; 52, lifting screw; 53, lifting sleeve; 54, leveling seat; 55, telescopic rod. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-Figure 5 This application is described in further detail.

[0028] The embodiment of the present application discloses a BOP hydraulic installation device. BOP is the abbreviation of Blowout Preventer, and its full name is Blowout Preventer.

[0029] Reference Figure 1 and Figure 2 The BOP hydraulic installation device includes a base 1, on which a hydraulic station 2, an operating table and a position adjustment mechanism 3 are arranged, wherein the position adjustment mechanism 3 is connected to the hydraulic station 2 through a hydraulic pipeline, and is used to realize the movement, rotation, flipping and fixing of the BOP 4. The base 1 is also provided with a leveling mechanism 5, which is connected to the hydraulic station 2 through a hydraulic pipe, and is used to realize that the connection flange on the BOP 4 is kept flush with the connection flange on the wellbore.

[0030] When the staff performs docking and fixing of BOP4 to the wellbore underwater, the staff first fixes BOP4 through the position adjustment mechanism 3, and hoists the installation device as a whole to the predetermined underwater position. Then the staff drives BOP4 to move through the position adjustment mechanism 3, so that BOP4 moves toward the well center of the wellbore until it preliminarily reaches the well center position, and then flips BOP4 so that BOP4 is accurately positioned at the position where it needs to be installed. Then the position between the connecting flange on BOP4 and the connecting flange on the wellbore is adjusted through the leveling mechanism 5 to keep the two flush. Then the rotation angle of BOP4 is adjusted again through the position adjustment mechanism 3 to align the connecting flange bolt holes on BOP4 with the connecting flange bolt holes on the wellbore, and then the bolts are passed through the bolt holes and fixed, and finally the installation of the remaining pipelines is completed.

[0031] In some embodiments, reference Figure 1 and Figure 2 The position adjustment mechanism 3 includes a sliding seat 31 arranged above the base 1, and a lifting frame 32 is arranged on the side of the sliding seat 31 away from the base 1, and the lifting frame 32 is in contact with the BOP4. A horizontal and vertical adjustment component 33 is arranged between the base 1 and the sliding seat 31, and the horizontal and vertical adjustment component 33 is used to drive the sliding seat 31 to move horizontally or vertically. A flip component 34 is arranged between the sliding seat 31 and the lifting frame 32, and the flip component 34 is used to drive the lifting frame 32 to rotate to a vertical or horizontal state. A lifting component 35 is arranged between the lifting frame 32 and the flip component 34, and the lifting component 35 is used to drive the lifting frame 32 to move up and down in the height direction. A rotating component 36 is arranged between the lifting frame 32 and the BOP4, and the rotating component 36 is used to drive the BOP4 to rotate. A fixing component 37 is also arranged on one side of the lifting frame 32, and the fixing component 37 is used to fix the BOP4.

[0032] When the bolt holes of the connecting flange on the BOP4 are aligned with the bolt holes of the connecting flange on the wellbore by the position adjustment mechanism 3, the staff first controls the sliding seat 31 to move horizontally or vertically by the horizontal and vertical adjustment assembly 33 to position the BOP4 to the expected position, and then rotates the lifting frame 32 and the BOP4 to a vertical state by the flip assembly 34, and then controls the lifting frame 32 to move up and down in the height direction by the lifting assembly 35 to adjust the height of the BOP4 so that the connecting flange on the BOP4 abuts against the connecting flange on the wellbore, and at the same time uses the rotating assembly 36 to rotate the BOP4 so as to align the bolt holes of the connecting flange.

[0033] In some embodiments, reference Figure 1 and 2The horizontal and vertical adjustment assembly 33 includes a moving frame 331 slidably connected to the base 1. For example, the moving frame 331 is slidably connected to the sliding seat 31 through a T-shaped track 332. The moving directions of the moving frame 331 and the sliding seat 31 are perpendicular to each other. The base 1 is fixed with a slide rail 333, and the moving frame 331 is located on the slide rail 333 and slides. A horizontal hydraulic cylinder 334 is arranged between the base 1 and the moving frame 331, and the horizontal hydraulic cylinder 334 is connected to the hydraulic station 2; a longitudinal hydraulic cylinder 335 is arranged between the moving frame 331 and the sliding seat 31, and the longitudinal hydraulic cylinder 335 is connected to the hydraulic station 2.

[0034] When the sliding seat 31 is controlled to move horizontally or vertically by the horizontal and vertical adjustment component 33 to move the BOP4 to the expected position, the staff first drives the horizontal hydraulic cylinder 334 through the hydraulic station 2 to drive the movable frame 331 to move horizontally along the slide rail 333 to adjust the horizontal position of the BOP4, and then drives the longitudinal hydraulic cylinder 335 through the hydraulic station 2 to drive the sliding seat 31 to move horizontally and vertically to adjust the longitudinal position of the BOP4, so as to accurately position the BOP4 to the required position.

[0035] In some embodiments, reference Figure 1 and 2 The flip assembly 34 includes a flip frame 341 disposed between the sliding seat 31 and the lifting frame 32. One side of the flip frame 341 is hinged to the sliding seat 31, and the flip frame 341 is slidably connected to the lifting frame 32. A flip hydraulic cylinder 342 is hinged between the sliding seat 31 and the flip frame 341, and the flip hydraulic cylinder 342 is connected to the hydraulic station 2 through a hydraulic pipeline.

[0036] When the BOP4 is turned over by the turning assembly 34, the staff first applies pressure to the turning hydraulic cylinder 342 through the hydraulic pipeline via the hydraulic station 2, and the turning hydraulic cylinder 342 can push the turning frame 341 to rotate relative to the sliding seat 31 until the BOP4 is turned over to a vertical state or a horizontal state. When the turning frame 341 is turned over to a horizontal state, it is convenient for the staff to fix the BOP4. When the turning frame 341 is turned over to a vertical state, it is convenient for the BOP4 to be docked with the wellbore.

[0037] In some embodiments, reference Figure 1 and 2 The lifting assembly 35 includes a guide rail fixed on the flip frame 341, and the lifting frame 32 can slide on the guide rail. A lifting hydraulic cylinder is arranged between the lifting frame 32 and the flip frame 341, and the lifting hydraulic cylinder is connected to the hydraulic station 2. When the BOP4 is driven to move up and down by the lifting assembly 35, firstly, the hydraulic station 2 applies pressure to the lifting hydraulic cylinder through the hydraulic pipeline, and then the lifting hydraulic cylinder can drive the lifting frame 32 to move up and down in the vertical direction on the guide rail.

[0038] In some embodiments, reference Figure 2 and Figure 3 The rotating assembly 36 includes a support seat 361 fixed on the lifting frame 32, and a rotating hydraulic motor 362 is arranged on the support seat 361. The rotating hydraulic motor 362 is connected to the hydraulic station 2 through a hydraulic pipeline; illustratively, a rotating frame 363 is fixed below the output end of the rotating hydraulic motor 362, and the rotating frame 363 is annular. A clamping component 364 is arranged between the rotating frame 363 and the BOP4, and the clamping component 364 is used to clamp the BOP4.

[0039] In some embodiments, reference Figure 3 and Figure 4 The clamping part 364 includes a plurality of clamping plates 3641 disposed inside the rotating frame 363, preferably two, and the two clamping plates 3641 are evenly spaced along the inner ring of the rotating frame 363. A rotating screw 3642 is threadedly connected to the rotating frame 363, one end of the rotating screw 3642 is rotatably connected to the clamping plate 3641, and the other end is fixedly sleeved with a rotating part 3643. A guide rod 3644 is disposed between the clamping plate 3641 and the rotating frame 363, one end of the guide rod 3644 is fixedly connected to the clamping plate 3641, and the other end is slidably connected to the rotating frame 363, and a scale is disposed on the guide rod 3644.

[0040] When rotating BOP4 through the rotating assembly 36 to align the bolt holes of the connecting flange on BOP4 with the connecting flange on the wellbore, the staff first applies power to the rotating hydraulic motor 362 through the hydraulic station 2, and then the rotating hydraulic motor 362 starts to run, driving the rotating frame 363 to start rotating, and then the rotating frame 363 drives the clamping component 364 and BOP4 to rotate, so that the connecting flange on BOP4 is aligned with the bolt holes of the connecting flange on the wellbore.

[0041] The staff rotates the rotating part 3643, and the rotating part 3643 can drive the rotating screw 3642 to rotate. Under the action of the guide rod 3644, the clamping plate 3641 can be moved to the side close to BOP4, so that one end of BOP4 is clamped between the two clamping plates 3641. A scale is set on the guide rod 3644. The staff can adjust the position of the clamping plate 3641 by observing the scale value on the scale, so as to make the center of the rotating frame 363 consistent with the rotation center of the connecting flange on the BOP4.

[0042] In some embodiments, reference Figure 3 and Figure 4The fixing assembly 37 includes two fixing half rings 371 symmetrically hinged on the lifting frame 32, and each fixing half ring 371 is rotatably connected to a plurality of rollers 372. A fixing groove is provided on the BOP4, and the fixing half ring 371 is snapped into the fixing groove, and the rollers 372 can roll in the fixing groove. A connecting seat 373 is fixedly provided on the side of the fixing half ring 371 away from its hinge, and a connecting bolt 374 is provided between the two connecting seats 373 for fixing. When fixing the BOP4 by the fixing assembly 37, firstly, the hinged parts of the two fixing half rings 371 are symmetrically clamped in the fixing groove of the BOP4, and then the connecting seat 373 is fixed by the connecting bolt 374.

[0043] In some embodiments, reference Figure 5 The leveling mechanism 5 includes a plurality of lifting hydraulic motors 51 disposed on the base 1, and the lifting hydraulic motors 51 are connected to the hydraulic station 2. A lifting screw 52 is fixedly disposed at the output end of the lifting hydraulic motor 51, and a lifting sleeve 53 is threadedly sleeved on the outer side of the lifting screw 52, ​​and a leveling seat 54 is fixedly disposed on the side of the lifting sleeve 53 away from the lifting hydraulic motor 51. A telescopic rod 55 is fixedly disposed between the base 1 and the leveling seat 54.

[0044] When the base 1 is leveled by the leveling mechanism 5, the staff first starts the lifting hydraulic motor 51, and the lifting hydraulic motor 51 drives the lifting screw 52 to start rotating. The lifting screw 52 can drive the lifting sleeve 53 and the leveling seat 54 to rise or fall, and then start multiple lifting hydraulic motors 51 separately until the base 1 reaches a horizontal state.

[0045] The present application also discloses an installation method of a BOP hydraulic installation device, which is applicable to the above-mentioned BOP hydraulic installation device, and the installation steps are as follows: S1. Install BOP4 on the position adjustment mechanism 3; S2, hoisting the installation device as a whole to a predetermined underwater position; S3, start hydraulic station 2; S4. The sliding seat 31 is controlled to move horizontally or vertically by the horizontal and vertical adjustment assembly 33 to move the BOP4 toward the well center of the wellbore. Then, the lifting frame 32 and the BOP4 are rotated to a vertical state by the flip assembly 34, and then the lifting frame 32 is controlled to move up and down in the height direction by the lifting assembly 35 to adjust the height of the BOP4 so that the connection flange on the BOP4 abuts against the connection flange on the wellbore.

[0046] S5. The position between the connecting flange on the BOP4 and the connecting flange on the wellbore is adjusted by the leveling mechanism 5 so that the two are kept flush.

[0047] S6. Adjust the rotation angle of BOP4 by rotating assembly 36, so that the bolt holes of the connection flange on BOP4 are aligned with the bolt holes of the connection flange on the wellbore, and fix them by fastening bolts passing through the bolt holes; S7. Close hydraulic station 2.

[0048] S8. Complete the installation of the remaining pipelines.

[0049] The implementation principle of a BOP hydraulic installation device and an installation method thereof according to an embodiment of the present application is as follows: when the staff performs docking and fixing of BOP4 to the wellbore underwater, the staff first fixes BOP4 through the position adjustment mechanism 3, and hoists the installation device as a whole to a predetermined underwater position, and then the staff drives BOP4 to move through the position adjustment mechanism 3, so that BOP4 moves toward the well center of the wellbore until it initially reaches the well center position, and then flips BOP4 so that BOP4 is accurately positioned at the position where it needs to be installed, and then adjusts the position between the connecting flange on BOP4 and the connecting flange on the wellbore through the leveling mechanism 5 so that the two are kept flush, and then adjusts the rotation angle of BOP4 again through the position adjustment mechanism 3 so that the bolt holes of the connecting flange on BOP4 are aligned with the wellbore. The bolt holes of the connecting flanges on the wellbore are aligned, and the bolts are passed through the bolt holes to fix them, and finally the installation of the remaining pipelines is completed; the hydraulic station 2 is the power source for the operation of the entire installation device, and the structure of the hydraulic station 2 is relatively simple, without complex electronic components, so it is less susceptible to the influence of moisture, humidity or water pressure in the underwater environment, thereby improving the reliability of the system operation; at the same time, through the coordinated use of the position adjustment mechanism 3 and the leveling mechanism 5, the staff can quickly and conveniently operate underwater to achieve accurate docking and fixation of the connecting flange on the BOP4 and the connecting flange on the wellbore, and the adjustment process only requires the staff to operate the operating table, which reduces the labor intensity of the staff while improving the operational safety, and facilitates the subsequent inspection and maintenance of the BOP4.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A BOP hydraulic installation device, characterized in that: include: A base (1), wherein a hydraulic station (2) and an operating table are arranged on the base (1); A position adjustment mechanism (3) is arranged on the base (1) and connected to the hydraulic station (2) to realize movement, rotation, flipping and fixing of the BOP (4); A leveling mechanism (5) is arranged on the base (1) and connected to the hydraulic station (2) to ensure that the connecting flange on the BOP (4) is flush with the connecting flange on the wellbore.

2. A BOP hydraulic installation device according to claim 1, characterized in that: The position adjustment mechanism (3) comprises: A sliding seat (31) is arranged above the base (1) at intervals; A lifting frame (32) is spaced apart from the side of the sliding seat (31) away from the base (1) and is in contact with the BOP (4); A transverse and longitudinal adjustment component (33) is disposed between the base (1) and the sliding seat (31) and is used to drive the sliding seat (31) to move transversely or longitudinally; A turning assembly (34) is disposed between the sliding seat (31) and the lifting frame (32) and is used to drive the lifting frame (32) to rotate to a vertical or horizontal state; A lifting assembly (35) is disposed between the lifting frame (32) and the turning assembly (34) and is used to drive the lifting frame (32) to move up and down in a height direction; A rotating assembly (36) is disposed between the lifting frame (32) and the BOP (4) and is used to drive the BOP (4) to rotate; The fixing assembly (37) is arranged on one side of the lifting frame (32) and is used to fix the BOP (4).

3. A BOP hydraulic installation device according to claim 2, characterized in that: The transverse and longitudinal adjustment component (33) comprises: A movable frame (331) is slidably connected to the base (1); A transverse hydraulic cylinder (334) is disposed between the base (1) and the movable frame (331) and is connected to the hydraulic station (2); A longitudinal hydraulic cylinder (335) is disposed between the movable frame (331) and the sliding seat (31) and is connected to the hydraulic station (2); The moving directions of the movable frame (331) and the sliding seat (31) are perpendicular to each other.

4. A BOP hydraulic installation device according to claim 2, characterized in that: The flip assembly (34) comprises: The turning frame (341) is arranged between the sliding seat (31) and the lifting frame (32), the turning frame (341) and the sliding seat (31) are hinged, and the turning frame (341) and the lifting frame (32) are slidably connected; The turning hydraulic cylinder (342) is hinged between the sliding seat (31) and the turning frame (341), and is communicated with the hydraulic station (2).

5. A BOP hydraulic installation device according to claim 2, characterized in that: The lifting assembly (35) comprises: A guide rail is fixedly mounted on the turning frame (341), and the lifting frame (32) is slidably connected to the guide rail; The lifting hydraulic cylinder is arranged between the lifting frame (32) and the turning frame (341), and is connected to the hydraulic station (2).

6. A BOP hydraulic installation device according to claim 2, characterized in that: The rotating assembly (36) comprises: A support base (361) is fixed to the lifting frame (32); A rotary hydraulic motor (362) is disposed on the support seat (361) and connected to the hydraulic station (2); A rotating frame (363) is disposed below the rotating hydraulic motor (362) and connected to the output end of the rotating hydraulic motor (362); The clamping component (364) is disposed between the rotating frame (363) and the BOP (4) and is used to clamp the BOP (4).

7. A BOP hydraulic installation device according to claim 6, characterized in that: The clamping member (364) comprises: A clamping plate (3641) is arranged on one side of the rotating frame (363), and a plurality of clamping plates are provided; A rotating screw (3642) is threadedly connected to the rotating frame (363) and is rotationally connected to the clamping plate (3641); The guide rod (3644) is arranged between the clamping plate (3641) and the rotating frame (363), one end of the guide rod (3644) is fixedly connected to the clamping plate (3641), and the other end is slidably connected to the rotating frame (363), and a scale is arranged on the guide rod (3644).

8. A BOP hydraulic installation device according to claim 2, characterized in that: The fixing assembly (37) comprises two fixing half rings (371) symmetrically hinged on the lifting frame (32), a plurality of rollers (372) rotatably connected to the fixing half rings (371), a connecting seat (373) fixed on the fixing half rings (371), and a connecting bolt (374) arranged between the two connecting seats (373); The BOP (4) is provided with a fixing groove, the fixing half ring (371) is snap-fitted into the fixing groove, and the roller (372) can roll in the fixing groove.

9. A BOP hydraulic installation device according to any one of claims 1 to 8, characterized in that: The leveling mechanism (5) comprises a plurality of lifting hydraulic motors (51) arranged on a base (1), a lifting screw (52) fixedly arranged at an output end of the lifting hydraulic motor (51), a lifting sleeve (53) threadedly sleeved on the outside of the lifting screw (52), a leveling seat (54) fixedly arranged on the lifting sleeve (53), and a telescopic rod (55) fixedly arranged between the base (1) and the leveling seat (54), and the lifting hydraulic motor (51) is connected to a hydraulic station (2).

10. A method for installing a BOP hydraulic installation device, characterized in that: A BOP hydraulic installation device applicable to any one of claims 1 to 9, wherein the installation steps are as follows: S1. Installing the BOP (4) on the position adjustment mechanism (3); S2, hoisting the installation device as a whole to a predetermined underwater position; S3, start the hydraulic station (2); S4, driving the BOP (4) to move by the position adjustment mechanism (3), so that the BOP (4) moves toward the well center of the wellbore until it reaches the well center position, and then turning the BOP (4) over, so as to accurately position the BOP (4) to a position where it needs to be installed; S5. Adjust the position between the connecting flange on the BOP (4) and the connecting flange on the wellbore by means of the leveling mechanism (5) so that the two are kept flush; S6, adjusting the rotation angle of the BOP (4) by means of the position adjustment mechanism (3) so that the bolt holes of the connection flange on the BOP (4) are aligned with the bolt holes of the connection flange on the wellbore, and fixing them by passing the tightening bolts through the bolt holes; S7, closing the hydraulic station (2); S8. Complete the installation of the remaining pipelines.

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