A jacket platform for offshore oil and gas production and a method of installing the same

Abstract

The present application relates to the field of oil and gas exploitation equipment, especially to a kind of offshore oil and gas exploitation jacket platform and its installation method, in view of the poor protection effect of flow control plate on platform when facing strong flow in prior art, provide a kind of offshore oil and gas exploitation jacket platform and its installation method, including jacket and platform installed on the upper end of jacket, the jacket includes multiple evenly distributed support conduit and multiple inclined struts around the outside, the surface of support conduit and inclined struts is respectively equipped with multiple groups of counter thruster assembly, counter thruster can be converted into power to provide counterforce to resist when according to the energy of strong current impact of sea wave, offset the influence of strong current on jacket.

Description

Technical Field

[0001] This invention relates to the field of oil and gas extraction equipment, and more specifically to the field of offshore operation platforms for underwater oil and gas extraction, particularly to a jacket platform for offshore oil and gas extraction and its installation method. Background Technology

[0002] As one of the essential supporting equipment for underwater oil and gas extraction, offshore operating platforms play a crucial role in the continuous development of the global economy and the increasing demand for energy. With the dwindling reserves and increasing difficulty of extraction of onshore oil and gas resources after long-term exploitation, the development of offshore oil and gas resources has become a focus of the global energy sector. In the process of offshore oil and gas extraction, the oil and gas extraction platform is the core equipment; it provides the necessary working space and equipment support for extraction operations, and its performance and technical level directly affect the efficiency, safety, and economy of oil and gas extraction. Because the operating platform is located in a complex and ever-changing marine environment, it constantly faces dangers from various aspects, including natural elements, equipment, operations, and external interference. The wind, waves, and strong currents in the ocean also pose significant risks, as these currents are fast and changeable, causing continuous scouring and impact on the platform's foundation.

[0003] For example, patent application number 202210071664 1 discloses a novel jacket platform suitable for offshore oil and gas extraction, including a base frame and a platform deck, with a support frame between the base frame and the platform deck; the support frame contains several sets of flow control components, each including a flow control base fixed within the support frame, with several mounting slots on the base, and a flow control plate rotatably mounted in the center of each mounting slot, the movable end of which extends to the outside of the mounting slot. This invention has the advantage of reducing the impact of wind, waves, and currents on the jacket platform; however, in the prior art, the flow control plate is mainly driven by ocean currents to swing downwards, providing downward pressure to the jacket and thus improving its stability. However, when strong currents are required, the platform will experience complex movements such as swaying and displacement in the strong current. The flow control effect of the flow control plate may be limited due to poor coordination with other structures on the platform. Under the impact of strong currents, the platform may sway significantly, and the downward pressure generated by the flow control plate may not effectively enhance the platform's stability. The two cannot form a good synergistic effect, reducing the protective effect of the flow control plate on the platform in strong currents. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention provides a jacket platform for offshore oil and gas extraction and its installation method, which effectively solves the problems mentioned in the background art.

[0005] The technical solution adopted by the present invention to solve the above problems is as follows:

[0006] A jacket platform for offshore oil and gas extraction includes a jacket and a platform mounted on the upper end of the jacket. The jacket includes a plurality of evenly distributed support pipes and a plurality of diagonal braces surrounding the outer side. A plurality of sets of reinforcement components are installed between the support pipes and the diagonal braces.

[0007] Multiple sets of thrust reverser assemblies are respectively installed on the surfaces of the support guide tube and the diagonal brace. The thrust reverser assembly includes a thrust reverser and a spherical connector for mounting the thrust reverser.

[0008] The thruster assembly includes an elastic rod with side wings fixedly connected to both sides of one side of the elastic rod. A swing body is fixedly connected to the end of the elastic rod. The swing body can swing under the elastic action of the elastic rod and the pressure difference of the water flow on both sides when the ocean current passes through the spherical connector drives the swing body to swing repeatedly.

[0009] Furthermore, the reinforcement includes multiple central reinforcement frames vertically distributed among multiple support conduits. The central reinforcement frames are fixedly connected to the support conduits respectively, and the outer ends of the central reinforcement frames are fixedly connected to the outer diagonal braces respectively. The diagonal braces and the lower ends of the support conduits are jointly fixedly connected to a base frame.

[0010] Furthermore, annular reinforcing frames are fixedly connected to the outer sides of the multiple central reinforcing frames and the base frame, and the annular reinforcing frames are fixedly connected to the diagonal braces; multiple mounting sleeves are respectively opened on the surface of the base frame and the surface of the lower annular reinforcing frames.

[0011] Furthermore, the spherical connector includes a first semicircular block and a second semicircular block that can cooperate with each other to form a spherical structure. The head end of the elastic rod is fixedly connected to the second semicircular block. A semi-cylindrical groove is opened on the corresponding side of the first semicircular block and the second semicircular block. After the first semicircular block and the second semicircular block are combined, a complete cylindrical groove can be formed on the inner side for cooperation with the support guide tube and the diagonal brace.

[0012] Mounting holes are respectively opened on the upper and lower sides of the corresponding end surfaces of the first and second semicircular blocks. A mating component is rotatably connected inside the mounting hole on the surface of the first semicircular block, and a snap-fit ​​component is installed inside the mounting hole on the surface of the second semicircular block. The mating component and the snap-fit ​​component cooperate with each other to form a detachable connection between the first and second semicircular blocks.

[0013] Furthermore, the inner walls of the corresponding semi-cylindrical grooves are respectively rotatably connected to arc-shaped rotating blocks on the same axis, and rubber reinforcing strips are fixedly connected to one end of each of the two corresponding arc-shaped rotating blocks.

[0014] Furthermore, the docking component includes a connecting block located in the mounting hole, a connecting rod fixedly connected coaxially to the connecting block, and a docking block fixedly connected to the other end of the connecting rod. The end of the connecting block away from the docking block is provided with an internal hexagonal groove.

[0015] The snap-fit ​​component includes a fixing block fixedly connected to the inside of the mounting hole. A mating screw is fixedly connected to one end of the fixing block corresponding to the mating block. A threaded hole capable of meshing is opened at one end of the mating block corresponding to the mating screw.

[0016] Furthermore, the inner wall of the mounting hole on the inner side of the second semicircular block is provided with a plurality of ring-shaped locking blocks. The locking blocks are slidably connected to the inner wall of the mounting hole, and the outer ends of the locking blocks are slidably connected to limit rods. The other ends of the limit rods are fixedly connected to the inner wall of the mounting hole, and the surfaces of the limit rods are respectively fitted with limit springs.

[0017] The docking block has a first inclined surface at one end facing the locking block, and multiple evenly distributed arc-shaped teeth at the other end; the locking block and the docking block have a second inclined surface at the corresponding end that can cooperate with the first inclined surface, and the other end is fixedly connected with a mating pin.

[0018] Furthermore, each set of thruster assemblies includes three thrusters. The inner side of the first semicircular block located in the middle position is provided with mounting grooves. The inner side of the mounting grooves is rotatably connected to a central gear. The two sides of the central gear are respectively meshed with vertically distributed linkage racks. The linkage racks are vertically slidably connected to the first semicircular block in the middle position. One end of the linkage rack is fixedly connected to the first semicircular block on the outer side, and the other end is fixedly connected to a stabilizing plate. The stabilizing plate is slidably connected to the corresponding linkage rack.

[0019] Furthermore, a transmission cylinder is fixedly connected to the end of the elastic rod in the middle position of the same group of thrusters. The transmission cylinder is rotatably connected to the second semicircular block in the middle position. Transmission rods are fixedly connected to the ends of the elastic rods on the upper and lower sides respectively. The transmission rods are rotatably connected to the corresponding second semicircular blocks respectively. The transmission rods on both sides are splinedly connected to the inner transmission cylinder respectively. A rotating rod is splinedly connected to the upper end of the upper transmission rod. A groove plate is fixedly connected to the upper end of the rotating rod.

[0020] Impellers are respectively installed on the upper side of the thruster located on the upper side. The impellers are rotatably connected to the surface of the support guide tube and the diagonal brace. A gear ring is fixedly connected to the lower end of the impeller on the same axis. A matching gear is meshed on one side of the gear ring. The matching gear is rotatably connected to the corresponding support guide tube or diagonal brace. A rotating plate is fixedly connected to the lower end of the matching gear. A connecting pin is fixedly connected to the other end of the rotating plate. A matching groove is opened on the surface of the groove plate along the length direction. The connecting pin slides into the matching groove.

[0021] This invention features a novel structure, ingenious design, and simple and convenient operation, offering the following advantages compared to existing technologies:

[0022] When this offshore oil and gas extraction pipe platform is in use, if severe weather is required, the thrusters can use the energy generated by the impact of strong waves and currents to provide a reaction force to counteract the impact of the strong current on the jacket. When the current passes through the spherical connector and the side wings, it is separated to both sides, forming periodically alternating vortices, creating the Karman vortex street effect. As the strong current gradually intensifies, the resulting turbulence will continuously push the side wings and the oscillating body to oscillate repeatedly. During the repeated oscillation, the interaction with the water generates a reverse thrust that acts on the jacket, helping the jacket to counteract the pressure from the strong current. Attached Figure Description

[0023] Figure 1 This is a 3D physical image of a jacket platform for offshore oil and gas extraction according to the present invention.

[0024] Figure 2 This is a first schematic diagram of the overall structure of a jacket platform for offshore oil and gas extraction according to the present invention.

[0025] Figure 3 This is a second schematic diagram of the overall structure of a jacket platform for offshore oil and gas extraction according to the present invention.

[0026] Figure 4 This is a schematic diagram of a jacket structure for an offshore oil and gas extraction jacket platform according to the present invention.

[0027] Figure 5 This is a schematic diagram of the installation state of a thrust reverser for an offshore oil and gas extraction jacket platform according to the present invention.

[0028] Figure 6 This is a first schematic diagram of the connection structure between the thruster and the spherical connector for a jacket platform used in offshore oil and gas extraction according to the present invention.

[0029] Figure 7 This is a schematic diagram of a central rack and pinion linkage structure for a jacket platform used in offshore oil and gas extraction according to the present invention.

[0030] Figure 8 This invention relates to a jacket platform for offshore oil and gas extraction. Figure 7 A schematic diagram of the structure at point T.

[0031] Figure 9 This is a first schematic diagram of a spherical connector structure for an offshore oil and gas extraction jacket platform according to the present invention.

[0032] Figure 10 This is a second schematic diagram of a spherical connector structure for an offshore oil and gas extraction jacket platform according to the present invention.

[0033] Figure 11 This is a first schematic diagram of the docking and snap-fit ​​components of a jacket platform for offshore oil and gas extraction according to the present invention.

[0034] Figure 12 This is a second schematic diagram of the docking components and clamping components of a jacket platform for offshore oil and gas extraction according to the present invention.

[0035] Figure 13 This is a third schematic diagram of the docking components and clamping components of a jacket platform for offshore oil and gas extraction according to the present invention.

[0036] Figure 14 This is an exploded view of the arc-shaped teeth and mating pin structure of a jacket platform for offshore oil and gas extraction according to the present invention.

[0037] Figure 15 This is a second schematic diagram of the connection structure between the thruster and the spherical connector for a jacket platform used in offshore oil and gas extraction according to the present invention.

[0038] Numbering in the diagram: 1-Guide frame, 2-Platform, 3-Support guide tube, 4-Diagonal brace, 5-Central reinforcement frame, 6-Base frame, 7-Mounting sleeve, 8-Thruster, 9-First semicircular block, 10-Second semicircular block, 11-Elastic rod, 12-Side wing, 13-Swinging body, 14-Support spring, 15-Connecting plate, 17-Central gear, 18-Linking rack, 19-Stabilizing plate, 20-Arc-shaped rotating block, 21-Reinforcing strip, 22-Mounting groove, 23-Mounting hole, 24-Connecting rod, 25-Connecting block. 26-Internal hexagonal groove, 27-Matching block, 28-Clamping block, 29-Limiting rod, 30-Limiting spring, 31-Matching pin, 32-First inclined surface, 33-Second inclined surface, 34-Threaded hole, 35-Matching screw, 36-Push spring, 37-Fixing block, 38-Arc-shaped tooth, 39-Impeller, 40-Gear ring, 41-Matching gear, 42-Rotating plate, 43-Connecting pin, 44-Transmission cylinder, 45-Transmission rod, 47-Rotating rod, 48-Slot plate, 49-Matching slot, 50-Annular reinforcing frame. Detailed Implementation

[0039] The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0040] Example 1, as Figure 1-13As shown, this invention provides a jacket platform for offshore oil and gas extraction, belonging to the field of underwater oil and gas extraction equipment, specifically relating to an operating platform for underwater oil and gas extraction, including a jacket 1 and a platform 2 installed on the upper end of the jacket 1. The jacket 1 includes multiple evenly distributed support pipes 3 and multiple diagonal braces 4 surrounding the outside. Multiple sets of reinforcement components are installed between the support pipes 3 and the diagonal braces 4. The support pipes 3, diagonal braces 4 and reinforcement components form a stable and solid jacket 1 to support the platform 2. In response to strong currents at sea, in order to reduce the impact on the jacket 1 and enhance the stability and solidity of the platform 2, multiple sets of thrust reverser assemblies 8 are installed on the surfaces of the support pipes 3 and diagonal braces 4. The thrust reverser 8 assembly includes a thrust reverser 8 and a spherical connector for installing the thrust reverser 8. The thrust reverser 8 can utilize the energy of the impact of strong currents to provide a reaction force to counteract and offset the impact of strong currents on the jacket 1.

[0041] The thruster 8 assembly includes an elastic rod 11, with side wings 12 fixedly connected to both sides of one side of the elastic rod 11. A swing body 13 is fixedly connected to the end of the elastic rod 11. The swing body 13 can swing under the elastic action of the elastic rod 11 and external force. When the ocean current passes through the spherical connector, the pressure difference between the two sides of the water flow creates a pressure difference that drives the swing body 13 to swing repeatedly. The cross-sections of the side wings 12 and the swing body 13 are asymmetrical curved surfaces that are "thicker at the front and thinner at the back". The front end of the side wings 12 of the swing body 13 has a rounded transition to disperse the impact pressure of the ocean current. The back end is sharp and wedge-shaped to accelerate water flow separation and induce stable vortex shedding. When the ocean current passes through the spherical connector and the side wings 12, it is separated to both sides, forming periodically alternating vortices, forming the Karman vortex street effect. When the strong current gradually intensifies, the turbulence formed will continuously drive the side wings 12 and the swing body 13 to swing repeatedly. During the repeated swinging process, it interacts with the water to generate a reverse thrust that acts on the jacket 1, helping the jacket 1 to counteract the pressure from the strong current.

[0042] Baffles are fixedly connected to both sides of the surface of the elastic rod 11. Support springs 14 are sleeved on the surface of the elastic rod 11 between the baffles. When the elastic rod 11 swings, the support springs 14 can use their own elasticity to provide support force, reduce the fatigue of the elastic rod 11 when it swings repeatedly, and assist the elastic rod 11 to reset after the ocean current disappears. Since the thrust reverser 8 can rotate, it can be pushed to rotate when the ocean current impacts the side wing 12, so that the side wing 12 of multiple thrust reversers 8 can correspond to the impact of the ocean current, so that the thrust reversers 8 can be used at the same time to maintain the auxiliary effect on the jacket 1.

[0043] The reinforcement components include multiple central reinforcement frames 5 vertically distributed among multiple supporting conduits 3. The central reinforcement frames 5 are fixedly connected to the supporting conduits 3, and the outer ends of the central reinforcement frames 5 are fixedly connected to the outer diagonal braces 4. The lower ends of the diagonal braces 4 and the supporting conduits 3 are jointly fixedly connected to a base frame 6. The central reinforcement frames 5 and the base frame 6 are triangular structures, which can more effectively improve the stability and strengthen the support effect of the conduit frame 1 when facing strong currents. Furthermore, in order to improve the stability effect of the conduit frame 1, the outer sides of the multiple central reinforcement frames 5 and the base frame 6 are fixedly connected to annular reinforcement frames 50. The annular reinforcement frames 50 are fixedly connected to the diagonal braces 4. Under the action of the annular reinforcement frames 50 and the diagonal braces 4, the impact of the ocean current coming from the front of the conduit frame 1 can be effectively transferred and dispersed. Through effective dispersion and support, the stability of the conduit frame 1 is improved. Multiple installation sleeves 7 are opened on the surface of the base frame 6 and the surface of the lower annular reinforcement frames 50 for convenient installation of the conduit frame 1.

[0044] like Figures 9-13 As shown, the spherical connector includes a first semicircular block 9 and a second semicircular block 10 that can cooperate to form a spherical structure. The head end of the elastic rod 11 is fixedly connected to the second semicircular block 10. Semicircular grooves are respectively opened on the corresponding side of the first semicircular block 9 and the second semicircular block 10. After the first semicircular block 9 and the second semicircular block 10 are combined, a complete cylindrical groove can be formed on the inner side for cooperation with the support guide tube 3 and the diagonal brace 4. Mounting holes 23 are respectively opened on the upper and lower sides of the corresponding end surface of the first semicircular block 9 and the second semicircular block 10. A docking component is rotatably connected to the inner side of the mounting hole 23 on the surface of the first semicircular block 9. A snap-fit ​​component is installed in the mounting hole 23 on the surface of the second semicircular block 10. The docking component and the snap-fit ​​component cooperate to form a detachable connection between the first semicircular block 9 and the second semicircular block 10, which facilitates the installation and disassembly of the thruster 8.

[0045] Furthermore, in order to improve the stability of the thrust reverser 8 installation without affecting its normal rotation, corresponding arc-shaped rotating blocks 20 are coaxially rotatably connected to the inner walls of the semi-cylindrical grooves. When the thrust reverser 8 can rotate, the sphere formed by the first semi-circular block 9 and the second semi-circular block 10 can rotate under the action of the arc-shaped rotating blocks 20. The two arc-shaped rotating blocks 20 correspond to each other and do not affect the rotation of the thrust reverser 8. Rubber reinforcing strips 21 are fixedly connected to one end of the two corresponding arc-shaped rotating blocks 20. When the first semi-circular block 9 and the second semi-circular block 10 install the thrust reverser 8 with clamping force, the rubber reinforcing strips 21 press against the surface of the support guide tube 3 or the diagonal brace 4 to increase friction, thereby improving the stability of the thrust reverser 8 installation and not affecting the rotation of the thrust reverser 8 under the action of the arc-shaped rotating blocks 20.

[0046] Furthermore, the docking component includes a connecting block 25 located in the mounting hole 23, a connecting rod 24 coaxially fixedly connected to the connecting block 25, and a docking block 27 fixedly connected to the other end of the connecting rod 24. The end of the connecting block 25 away from the docking block 27 is provided with an internal hexagonal groove 26, which is adapted to an internal hexagonal wrench to facilitate the operator to rotate the connecting rod 24.

[0047] The snap-fit ​​component includes a fixing block 37 fixedly connected to the inside of the mounting hole 23. A mating screw 35 is fixedly connected to one end of the fixing block 37 corresponding to the mating block 27. A threaded hole 34 that can engage is opened on one end of the mating block 27 corresponding to the mating screw 35. After the Allen wrench is engaged with the Allen socket 26, the mating screw 35 is rotated to correspond with the threaded hole 34 by pushing the connecting block 25. Then the Allen wrench is rotated, and the mating screw 35 is threadedly connected to the threaded hole 34 under the action of the threaded connection. The connection of the first semicircular block 9 and the second semicircular block 10 can be completed. An elastic washer is provided on the corresponding side of the first semicircular block 9 and the second semicircular block 10. After the first semicircular block 9 and the second semicircular block 10 are mated, the elastic washer can further improve the firmness of the connection between the two.

[0048] Furthermore, to facilitate the operator's connection between the first semicircular block 9 and the second semicircular block 10, and to facilitate the installation of the thruster 8; such as Figure 11 and Figure 13 As shown, the inner wall of the mounting hole 23 on the inner side of the second semicircular block 10 is provided with a plurality of ring-shaped locking blocks 28. The locking blocks 28 are slidably connected to the inner wall of the mounting hole 23. The outer ends of the locking blocks 28 are slidably connected to limit rods 29. The other ends of the limit rods 29 are fixedly connected to the inner wall of the mounting hole 23. Limit springs 30 are sleeved on the surface of the limit rods 29. The limit springs 30 can push the locking blocks 28 to move inward by their own elastic force. The locking blocks 28 can block the docking block 27, so that the docking block 27 cannot be disengaged.

[0049] In practical use, the mating block 27 can be directly inserted into the mounting hole 23 on the surface of the second semicircular block 10. The mating block 27 has a first inclined surface 32 at one end facing the locking block 28, and multiple evenly distributed arc-shaped teeth 38 at the other end. The locking block 28 has a second inclined surface 33 at one end corresponding to the mating block 27, which can cooperate with the first inclined surface 32, and the other end is fixedly connected with a mating pin 31. When the mating block 27 is inserted into the corresponding mounting hole 23, the first inclined surface 32 and the second inclined surface 33 slide against each other and can push the locking block 28. The limiting spring 30 is pressed outwards, allowing the docking block 27 to pass the locking block 28. Under the push of the limiting spring 30, the locking block 28 moves inwards to block the docking block 27, preventing it from disengaging. A pushing spring 36 is fitted on the surface of the docking screw 35, with one end of the pushing spring 36 fixedly connected to the fixing block 37. After the docking block 27 is inserted, it can be supported by the pushing spring 36 and will not wobble back and forth. Then, the operator can continue to press the first semicircular block 9 to connect the threaded hole 34 with the screw thread, completing a firm connection.

[0050] Furthermore, when the first semicircular block 9 is pressed to align the threaded hole 34 with the screw, the arc-shaped teeth 38 and the mating pin 31 are separated, which does not affect the rotation of the mating block 27. When the pusher 8 is disassembled, the connecting block 25 can be rotated in the opposite direction to disengage the screw from the threaded hole 34. Then, when the first semicircular block 9 is rotated in the opposite direction and moved outward, the arc-shaped teeth 38 and the mating pin 31 slide together. When the mating block 27 rotates, the arc-shaped teeth 38 can push the mating pin 31 outward, thereby causing the locking block 28 to move outward synchronously. When the locking block 28 no longer obstructs the mating block 27, the mating block 27 can be removed, thus achieving the disassembly of the first semicircular block 9 and the second semicircular block 10.

[0051] Furthermore, to facilitate adjustment of the spacing between the thrusters 8, each set of thruster 8 components includes three thrusters 8. The inner side of the first semicircular block 9 located in the middle position is provided with mounting grooves 22. A central gear 17 is rotatably connected to the inner side of each mounting groove 22. Vertically distributed connecting racks 18 mesh on both sides of the central gear 17. The connecting racks 18 are vertically slidably connected to the first semicircular block 9 in the middle position. One end of each connecting rack 18 is fixedly connected to the first semicircular block 9 on the outer side, and the other end is fixedly connected to a stabilizing plate 19. The stabilizing plate 19 is connected to the... The corresponding sliding connection of the rack and pinion 18 is used to improve the stability of the rack and pinion 18 when sliding. Under the action of the meshing transmission between the central gear 17 and the rack and pinion 18, the central gear 17 and the rack and pinion 18 maintain the linkage transmission effect. When one of the thrusters 8 moves, the other thruster 8 can move synchronously under the meshing transmission between the rack and pinion 18 and the central gear 17. This makes it convenient to adjust the spacing between the thrusters 8. Furthermore, setting three thrusters 8 as a group for installation can improve the regularity of the thrusters 8 during installation and facilitate the installation operation by the operator.

[0052] Example 2, as Figure 14 and Figure 15 As shown, a transmission cylinder 44 is fixedly connected to the end of the elastic rod 11 in the middle position of the thrusters 8 in the same group. The transmission cylinder 44 is rotatably connected to the second semicircular block 10 in the middle position. The ends of the elastic rods 11 on the upper and lower sides are respectively fixedly connected to transmission rods 45. The transmission rods 45 are respectively rotatably connected to the corresponding second semicircular blocks 10. The transmission rods 45 on both sides are respectively splined connected to the inner transmission cylinder 44. A rotating rod 47 is splined connected to the upper end of the upper transmission rod 45. A groove plate 48 is fixedly connected to the upper end of the rotating rod 47, so that when the rotating rod 47 rotates, it can synchronously drive the transmission rod 45 and the transmission cylinder 44 to rotate, without affecting the adjustment of the distance between the three thrusters 8.

[0053] Furthermore, impellers 39 are respectively installed on the upper side of the thruster 8. The impellers 39 are rotatably connected to the surfaces of the support duct 3 and the diagonal brace 4. When there is a strong current surge, the impellers 39 can rotate with the impact of the current. A gear ring 40 is fixedly connected to the lower end of the impeller 39 on the same axis. A matching gear 41 meshes with one side of the gear ring 40. The matching gear 41 is rotatably connected to the corresponding support duct 3 or diagonal brace 4. A rotating plate 42 is fixedly connected to the lower end of the matching gear 41. A connecting pin 43 is fixedly connected to the other end of the rotating plate 42. A matching groove 49 is opened on the surface of the groove plate 48 along the length direction. The connecting pin 43 and the matching groove 49 are connected to each other. In a sliding fit, the gear ring 40 rotates synchronously when the impeller 39 rotates. During the rotation of the gear ring 40, it drives the rotating plate 42 to rotate through the meshing transmission with the mating gear 41. When the rotating plate 42 rotates, it drives the groove plate 48 to swing repeatedly through the sliding fit between the connecting pin 43 and the mating groove 49. When the groove plate 48 swings back and forth, the rotating rod 47 can rotate repeatedly, thereby driving the thruster 8 to swing rapidly. It utilizes the impact of the ocean current to drive the thruster 8 to swing through a physical means, thereby interacting with the water to produce a wave-like propulsion effect and generating a reaction force to help the jacket 1 resist the ocean current.

[0054] The present invention also provides a method for installing a jacket platform for offshore oil and gas extraction, comprising the following steps:

[0055] S1. Install support conduits 3; weld multiple support conduits 3 evenly on the upper end of the base frame 6, with the support conduits 3 arranged in a ring on the upper end of the base frame 6.

[0056] S2. Install the ring-shaped reinforcing frame 50; place multiple ring-shaped reinforcing frames 50 on the outside of the base frame 6 and the central reinforcing frame 5 respectively, and fasten them with bolts;

[0057] S3. Install diagonal bracing rods 4; evenly wrap multiple diagonal bracing rods 4 around the outside of the central reinforcement frame 5, and evenly weld the diagonal bracing rods 4 to the surface of the annular reinforcement frame 50 to form a stable tower-shaped pipe frame 1.

[0058] S4. Install thrusters 8; arrange the thrusters 8 in groups of three vertically distributed, adjust the spacing to ensure that they do not interfere with each other, and evenly install them onto the surfaces of the support guide tube 3 and the diagonal brace 4 using spherical connectors, and test whether the thrusters 8 can rotate normally.

[0059] S5. Install the jacket frame 1; use a pile driver to drive the installation sleeve 7 into the deep seabed rock with the installation sleeve 7 as the base point, pour concrete to fill and reinforce the pile foundation, and when installing the jacket frame 1, keep the bottom end of the installation sleeve 7 on the same plane, fit the installation sleeve 7 with the pile foundation and fix it to complete the installation of the jacket frame 1.

[0060] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains can make various modifications or additions to the described specific embodiments or use similar methods to replace them.

Claims

1. A jacket platform for offshore oil and gas extraction, comprising a jacket (1) and a platform (2) mounted on the upper end of the jacket (1), characterized in that: The catheter frame (1) includes multiple evenly distributed support catheters (3) and multiple diagonal braces (4) surrounding the outside. Multiple sets of reinforcement components are installed between the support catheters (3) and the diagonal braces (4). Multiple sets of thrust reverser (8) assemblies are respectively installed on the surfaces of the supporting conduit (3) and the diagonal brace (4). The thrust reverser (8) assembly includes a thrust reverser (8) and a spherical connector for mounting the thrust reverser (8). The thruster (8) assembly includes an elastic rod (11), with side wings (12) fixedly connected to the two sides of the elastic rod (11) respectively. A swing body (13) is fixedly connected to the end of the elastic rod (11). The swing body (13) can swing under the elastic action of the elastic rod (11) and the water pressure difference on both sides is formed when the ocean current passes through the spherical connector, which pushes the swing body (13) to swing repeatedly.

2. A jacket platform for offshore oil and gas extraction as described in claim 1, characterized in that: The reinforcement includes a central reinforcement frame (5) that is vertically distributed among a plurality of support conduits (3). The central reinforcement frame (5) is fixedly connected to the support conduits (3) respectively. The outer ends of the central reinforcement frame (5) are fixedly connected to the outer diagonal braces (4) respectively. The lower ends of the diagonal braces (4) and the support conduits (3) are jointly fixedly connected to a base frame (6).

3. A jacket platform for offshore oil and gas extraction as described in claim 2, characterized in that: A ring-shaped reinforcement frame (50) is fixedly connected to the outer side of the multiple central reinforcement frames (5) and the base frame (6), and the ring-shaped reinforcement frame (50) is fixedly connected to the diagonal brace (4); multiple installation sleeves (7) are respectively opened on the surface of the base frame (6) and the surface of the lower ring-shaped reinforcement frame (50).

4. A jacket platform for offshore oil and gas extraction as described in claim 3, characterized in that: The spherical connector includes a first semicircular block (9) and a second semicircular block (10) that can cooperate to form a spherical structure. The head end of the elastic rod (11) is fixedly connected to the second semicircular block (10). The first semicircular block (9) and the second semicircular block (10) have semi-cylindrical grooves on their corresponding sides. After the first semicircular block (9) and the second semicircular block (10) are combined, a complete cylindrical groove can be formed on the inner side, which is used to cooperate with the support guide tube (3) and the diagonal brace (4). Mounting holes (23) are respectively opened on the upper and lower sides of the corresponding end surfaces of the first semicircular block (9) and the second semicircular block (10). A mating component is rotatably connected inside the mounting hole (23) on the surface of the first semicircular block (9). A snap-fit ​​component is installed inside the mounting hole (23) on the surface of the second semicircular block (10). The mating component and the snap-fit ​​component cooperate with each other to form a detachable connection between the first semicircular block (9) and the second semicircular block (10).

5. A jacket platform for offshore oil and gas extraction as described in claim 4, characterized in that: Correspondingly, the inner walls of the semi-cylindrical grooves are respectively connected to arc-shaped rotating blocks (20) on the same axis, and the corresponding ends of the two corresponding arc-shaped rotating blocks (20) are respectively fixedly connected to rubber reinforcing strips (21).

6. A jacket platform for offshore oil and gas extraction as described in claim 4, characterized in that: The docking component includes a connecting block (25) located in the mounting hole (23), a connecting rod (24) coaxially fixedly connected to the connecting block (25), and a docking block (27) fixedly connected to the other end of the connecting rod (24). The end of the connecting block (25) away from the docking block (27) is provided with an internal hexagonal groove (26). The snap-fit ​​component includes a fixing block (37) fixedly connected to the inside of the mounting hole (23). The fixing block (37) is fixedly connected to a docking screw (35) at one end corresponding to the docking block (27). The docking block (27) is provided with a threaded hole (34) that can engage with the docking screw (35) at one end.

7. A jacket platform for offshore oil and gas extraction as described in claim 6, characterized in that: The inner wall of the mounting hole (23) on the inner side of the second semicircular block (10) is provided with a plurality of ring-shaped locking blocks (28). The locking blocks (28) are slidably connected to the inner wall of the mounting hole (23). The outer ends of the locking blocks (28) are slidably connected to limit rods (29). The other ends of the limit rods (29) are fixedly connected to the inner wall of the mounting hole (23). Limit springs (30) are sleeved on the surface of the limit rods (29). The docking block (27) has a first inclined surface (32) at one end facing the locking block (28), and multiple evenly distributed arc-shaped teeth (38) at the other end; the locking block (28) and the docking block (27) have a second inclined surface (33) at one end that can cooperate with the first inclined surface (32), and the other end is fixedly connected with a mating pin (31).

8. A jacket platform for offshore oil and gas extraction as described in claim 4, characterized in that: Each set of thrusters (8) includes three thrusters (8). The inner side of the first semicircular block (9) located in the middle position is provided with mounting grooves (22). The inner side of the mounting grooves (22) is rotatably connected to the central gears (17). The two sides of the central gears (17) are respectively meshed with vertically distributed linkage racks (18). The linkage racks (18) are vertically slidably connected to the first semicircular block (9) in the middle position. One end of the linkage rack (18) is fixedly connected to the first semicircular block (9) on the outer side, and the other end is fixedly connected to the stabilizing plate (19). The stabilizing plate (19) is slidably connected to the corresponding linkage rack (18).

9. A jacket platform for offshore oil and gas extraction as described in claim 8, characterized in that: A transmission cylinder (44) is fixedly connected to the end of the elastic rod (11) in the middle position of the same group of thrusters (8). The transmission cylinder (44) is rotatably connected to the second semicircular block (10) in the middle position. The ends of the elastic rods (11) on the upper and lower sides are respectively fixedly connected to transmission rods (45). The transmission rods (45) are respectively rotatably connected to the corresponding second semicircular blocks (10). The transmission rods (45) on both sides are respectively splined connected to the inner transmission cylinder (44). A rotating rod (47) is splined connected to the upper end of the upper transmission rod (45). A groove plate (48) is fixedly connected to the upper end of the rotating rod (47). Impellers (39) are respectively provided on the upper side of the thruster (8) located on the upper side. The impellers (39) are rotatably connected to the surfaces of the support guide tube (3) and the diagonal brace (4). The lower end of the impeller (39) is coaxially fixedly connected to a gear ring (40). A matching gear (41) meshes on one side of the gear ring (40). The matching gear (41) is rotatably connected to the corresponding support guide tube (3) or diagonal brace (4). A rotating plate (42) is fixedly connected to the lower end of the matching gear (41). A connecting pin (43) is fixedly connected to the other end of the rotating plate (42). A matching groove (49) is opened on the surface of the groove plate (48) along the length direction. The connecting pin (43) slides into the matching groove (49).

10. A method for installing a jacket platform for offshore oil and gas extraction as described in claim 9, characterized in that, Includes the following steps: S1. Install support conduits (3); weld multiple support conduits (3) evenly at the upper end of the base frame (6), and the support conduits (3) are distributed in a ring at the upper end of the base frame (6); S2. Install the ring-shaped reinforcement frame (50); Set multiple ring-shaped reinforcement frames (50) on the outside of the base frame (6) and the central reinforcement frame (5) respectively, and tighten them with bolts; S3. Install diagonal bracing (4); surround multiple diagonal bracing (4) evenly around the outside of the central reinforcement frame (5), and weld the diagonal bracing (4) evenly to the surface of the annular reinforcement frame (50) to form a stable tower-shaped pipe frame (1). S4. Install the thrusters (8); arrange the thrusters (8) in groups of three vertically distributed, adjust the spacing to ensure that they do not interfere with each other, and evenly install them onto the surfaces of the support tube (3) and the diagonal brace (4) using spherical connectors, and test whether the thrusters (8) can rotate normally. S5. Install the guide frame (1); use a pile driver to drive the installation sleeve (7) into the deep seabed rock with the pile driver as the base point, pour concrete to fill and reinforce the pile foundation, and when installing the guide frame (1), keep the bottom end of the installation sleeve (7) in the same plane, put the installation sleeve (7) into the pile foundation and fix it, and complete the installation of the guide frame (1).

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