Anti-deviation integral wellhead device

Abstract

The invention relates to the technical field of oil exploitation wellhead equipment, in particular to an anti-deviation integral wellhead device which comprises a wellhead body, a wellhead device body, an anti-deviation mounting mechanism and a mounting platform, and flange plates are arranged at the upper end of the wellhead body and the lower end of the wellhead device body and detachably connected through bolts. The installation platform is arranged on the ground and used for arranging the anti-deviation installation mechanism, the installation platform comprises a supporting plate, a first opening is formed in the middle of the supporting plate and used for containing the well mouth body, a butt joint disc is arranged on the outer side of the well mouth device body, and the anti-deviation installation mechanism comprises a supporting ring and a supporting adjusting mechanism. The top face of the supporting ring makes contact with the bottom face of the butt joint disc. By means of the anti-deviation mounting mechanism, single-person quick mounting of the wellhead device body can be achieved, the working efficiency is improved, the labor cost is reduced, and after mounting is completed, the anti-deviation mounting mechanism can further play a role in supporting the wellhead device body and preventing the wellhead device body from deviating.

Description

Technical Field

[0001] The present invention relates to the technical field of oil production wellhead equipment, and specifically relates to an anti-offset integral wellhead device. Background Art

[0002] In oil production operations, the wellhead device is a key piece of equipment, and its stability is crucial. During long-term use of traditional wellhead devices, affected by various factors such as ground settlement and vibrations caused by production activities, offset phenomena are likely to occur. Wellhead offset not only leads to seal failure, causing crude oil leakage and environmental pollution, but also increases equipment wear, shortens the service life of the equipment, and raises maintenance costs. At the same time, the installation and adjustment process of traditional wellhead devices is complex, requiring a large amount of manpower and time, which affects production efficiency.

[0003] Chinese Patent CN113027373B discloses an integral wellhead device, which relates to the technical field of oil production, and includes a load-bearing plate, a wellhead body, and a wellhead device body. The upper end of the load-bearing plate is rotatably connected to a casing, the upper end of the casing is threadedly connected to a threaded rod, the outer wall of the casing is fixedly sleeved with a first pulley, the upper end of the load-bearing plate is fixedly connected to a motor located on one side of the casing, and the driving end of the motor is fixedly connected to a second pulley. Through the up and down movement of the mounting plate, the height adjustment between the wellhead device body and the lower flange is realized, and the second clamping plate moves towards the direction close to the outer wall of the wellhead device, thereby completing the fixed clamping of the wellhead device, ensuring the stability of the wellhead device during installation, and avoiding the situation where the wellhead device cannot be docked when the docking position between the upper flange and the lower flange is offset under the cooperation of the guiding block and the balancing mechanism, thereby improving the rapid installation of the wellhead device and further improving the working efficiency.

[0004] However, the technical solution of the above patent enables a free adjustment in the horizontal direction, but cannot complete the fine docking installation operation between the wellhead body and the wellhead device body, and the structure for performing the lifting operation is on one side, which is likely to cause unstable center of gravity, thus affecting the stability of the overall structure. Summary of the Invention

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] An anti-offset integral wellhead device, comprising a wellhead body, a wellhead device body, an anti-offset installation mechanism and an installation platform. Flange plates are provided at the upper end of the wellhead body and the lower end of the wellhead device body, and they are detachably connected by bolts. The installation platform is arranged on the ground for arranging the anti-offset installation mechanism. The installation platform includes a support plate, and an opening one is provided in the middle of the support plate for accommodating the wellhead body. A docking plate is arranged on the outer side of the wellhead device body. The anti-offset installation mechanism includes a support ring and a support adjustment mechanism. The support ring is arranged on the support adjustment mechanism, and the top surface of the support ring is in contact with the bottom surface of the docking plate.

[0007] Preferably, a conical cylinder is further arranged on the outer side wall of the support ring, and an arc chamfer is arranged on the outer bottom edge of the docking plate.

[0008] Preferably, a number of threaded installation holes are evenly distributed on the periphery of the support plate, and ground anchors are arranged in the threaded installation holes by threads.

[0009] Preferably, the ground anchor includes an anchor rod, a docking joint is arranged at the top of the anchor rod, an external thread part is arranged in the middle of the anchor rod, a pointed part is arranged at the bottom of the anchor rod, and a spiral blade is arranged on the anchor rod above the pointed part. The spiral blade includes a left-handed part and a right-handed part arranged longitudinally.

[0010] Preferably, a limit mechanism is further arranged on the outer side of the anchor rod by threads. The limit mechanism includes a sleeve, and a number of support arms are evenly distributed in a ring on the outer side of the sleeve. The top end of the support arm is rotatably connected to a rotating shaft seat one arranged on the outer side wall of the sleeve through a rotating shaft, and a limit block is further arranged on the outer side of the rotating shaft seat one facing outward.

[0011] Preferably, two locking nuts are further arranged on the external thread part, and the two locking nuts are respectively arranged on the upper and lower sides of the support plate.

[0012] Preferably, the anti-offset mounting mechanism includes a plurality of guide posts annularly and evenly arranged on the support plate. A stud is also vertically arranged on the support plate. Above the support plate, there is also a platform 1. On the platform 1, there are a plurality of through holes 1 corresponding to the guide posts and through holes 2 corresponding to the stud. A sleeve 1 is arranged in the through hole 1, and a sleeve 2 is arranged in the through hole 2. The inner wall of the sleeve 2 is provided with internal threads, and the stud is threadedly connected with the sleeve 2. The lower end of the stud is connected to the output end of the driving motor. In the middle of the platform 1, there is an opening 2. Above the platform 1, there is a platform 2. Outside the opening 2, a slide rail 1 and a linear driving unit 1 are symmetrically and parallelly arranged. In the slide rail 1, there are a plurality of sliders 1. In the middle of the platform 2, there is an opening 3. The sliders 1 and the moving blocks of the linear driving unit 1 are both connected to the bottom surface of the platform 2. Above the platform 2, there is a platform 3. Outside the opening 3, a slide rail 2 and a linear driving unit 2 are symmetrically and parallelly arranged. In the slide rail 2, there are a plurality of sliders 2. In the middle of the platform 3, there is an opening 4. The sliders 2 and the moving blocks of the linear driving unit 2 are both connected to the bottom surface of the platform 3. The slide rail 2 and the slide rail 1 are perpendicularly arranged. The retaining ring is inserted into the opening 4.

[0013] Preferably, the docking disc includes an upper disc and a lower disc, and the upper disc and the lower disc are rotatably connected.

[0014] Preferably, a fine leveling mechanism is also arranged on the support plate. The fine leveling mechanism includes a plurality of slide rails 3 annularly distributed with the opening 1 as the center. Along the extending direction of the slide rail in the slide rail 3, there is a screw rod. On the screw rod, there is a slider 3. The screw rod horizontally penetrates through the slider 3 and is threadedly connected with the slider 3. On the outer side of the screw rod, there is an adjusting handle. On the top surface of the slider, there is a pressure sensor. On the top surface of the pressure sensor, there is a rotating shaft seat 2. In the rotating shaft seat 2, a roller is rotatably arranged. Above the support plate, there is also an adjusting disc. The upper surface of the adjusting disc is flat, and the lower bottom surface of the adjusting disc is a conical structure. A plurality of rollers are in contact with the bottom surface of the adjusting disc. A plurality of guide posts and the driving motor are both arranged on the upper surface of the adjusting disc.

[0015] Preferably, the platform 1 includes a half part 1 and a half part 2, and the half part 1 and the half part 2 are inserted into each other. The platform 2 includes a half part 3 and a half part 4, and the half part 3 and the half part 4 are inserted into each other. The platform 3 includes a half part 5 and a half part 6, and the half part 5 and the half part 6 are inserted into each other. The retaining ring includes a half part 7 and a half part 8, and the half part 7 and the half part 8 are inserted into each other. A plurality of connecting forks 1 are evenly arranged on the outer side of the upper disc. Corresponding to each connecting fork 1 on the outer side of the support plate, there is a connecting fork 2. Between the connecting fork 1 and the connecting fork 2, there is a support member. The support member includes a middle sleeve. At both ends of the middle sleeve, there are adjusting rods threadedly connected. At both ends of the adjusting rod, there are connecting ball heads. The two connecting ball heads are respectively connected to the connecting fork 1 and the connecting fork 2 through pin shafts.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the anti-offset installation mechanism, the present invention can achieve the single-person rapid installation of the wellhead device body. Compared with the traditional hoisting method, at least two people need to cooperate to complete the docking efficiently. The present invention improves work efficiency, reduces labor costs, and after the installation is completed, the anti-offset installation mechanism can also support the wellhead device body to prevent it from shifting.

[0017] The present invention uses the tip and spiral blades at the bottom of the anchor rod to screw the anchor rod into the ground, firmly fixing the ground anchor on the ground. By adjusting the length of the anchor rod extending out of the support plate to contact the ground, the support plate can be in a horizontal state to meet the installation requirements for different terrains.

[0018] By rotating the sleeve, the present invention causes the limit mechanism to descend, so that the support arm contacts the ground, further improving the stability of the installation platform.

[0019] After the wellhead body and the wellhead device body are installed, by removing the supporting ring, platform one, platform two, and platform three in sequence, they can be taken off for repeated use, and the support member is connected to the upper plate to support the wellhead device body to prevent it from shifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the present invention; Figure 2 It is a schematic diagram of the structure of platform one of Embodiment 1 of the present invention; Figure 3 It is a schematic diagram of the overall structure of Embodiment 2 of the present invention; Figure 4 It is a schematic diagram of the ground anchor structure of Embodiment 2 of the present invention; Figure 5 It is a schematic diagram of the overall structure of Embodiment 3 of the present invention; Figure 6 It is a schematic diagram of the ground anchor structure of Embodiment 3 of the present invention; Figure 7 It is a schematic diagram of the overall structure of Embodiment 4 of the present invention; Figure 8 It is Figure 7 a partial structure schematic diagram at position A in Figure 9 It is a schematic diagram of the overall structure of the connecting support member in Embodiment 4 of the present invention; Figure 10 It is a partial structure schematic diagram of the support member in Embodiment 4 of the present invention; Figure 11 It is a schematic diagram of the structure of platform one in Embodiment 4 of the present invention; Figure 12Schematic diagram of Structure 2 of Platform in Embodiment 4 of the present invention; Figure 13 Schematic diagram of Structure 3 of Platform in Embodiment 4 of the present invention; Figure 14 Schematic diagram of the supporting ring structure in Embodiment 4 of the present invention.

[0021] In the figure: 1, wellhead body; 2, wellhead device body; 21, flange; 22, docking plate; 221, arc chamfer; 222, upper plate; 2221, connecting fork 1; 223, lower plate; 3, anti-offset installation mechanism; 31, supporting ring; 311, conical cylinder; 312, half part seven; 313, half part eight; 32, support adjustment mechanism; 321, guide post; 322, stud; 323, drive motor; 33, Platform 1; 331, through hole 1; 332, through hole 2; 333, sleeve 1; 334, sleeve 2; 335, opening 2; 336, half part one; 337, half part two; 34, Platform 2; 341, slide rail 1; 342, linear drive unit 1; 343, slider 1; 344, opening 3; 345, half part three; 346, half part four; 35, Platform 3; 351, slide rail 2; 352, linear drive unit 2; 353, slider 2; 354, opening 4; 355, half part five; 356, half part six; 4, installation platform; 41, support plate; 411, opening 1; 412, threaded installation hole; 413, connecting fork 2; 5, ground anchor; 51, anchor rod; 511, docking joint; 512, external thread part; 513, tip; 514, spiral blade; 5141, left-handed part; 5142, right-handed part; 6, limiting mechanism; 61, sleeve; 62, support arm; 63, rotating shaft seat 1; 64, rotating shaft; 65, limiting block; 7, locking nut; 8, fine leveling mechanism; 81, slide rail 3; 82, screw rod; 83, slider 3; 84, adjusting handle; 85, pressure sensor; 86, rotating shaft seat 2; 87, roller; 88, adjusting disc; 9, support member; 91, middle sleeve; 92, adjusting rod; 93, connecting ball head; 94, pin shaft. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0023] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "provided with", "sleeved / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. Embodiment 1

[0025] As Figure 1-2 shown, in this embodiment, an anti-offset integral wellhead device includes a wellhead body 1, a wellhead device body 2, an anti-offset installation mechanism 3, and an installation platform 4. Flange plates 21 are provided at the upper end of the wellhead body 1 and the lower end of the wellhead device body 2, and they are detachably connected by bolts. This connection method is convenient for installation and disassembly, and facilitates subsequent maintenance and replacement work.

[0026] The installation platform 4 is arranged on the ground and is used to install the anti-offset installation mechanism 3. The installation platform 4 includes a support plate 41. An opening 411 is provided in the middle of the support plate 41, and the wellhead body 1 can be accommodated in this opening 411. A docking plate 22 is arranged on the outside of the wellhead device body 2. The anti-offset installation mechanism 3 includes a support ring 31 and a support adjustment mechanism 32. The support ring 31 is arranged on the support adjustment mechanism 32, and the top surface of the support ring 31 contacts the bottom surface of the docking plate 22. By adjusting the support ring 31 through the support adjustment mechanism 32, the position and angle of the wellhead device body 2 can be adjusted, effectively preventing the wellhead from offsetting.

[0027] In this embodiment, a conical cylinder 311 is arranged on the outer side wall of the support ring 31, and an arc chamfer 221 is arranged on the outer bottom edge of the docking plate 22. The conical cylinder 311 and the arc chamfer 221 cooperate with each other to play a guiding role during the installation and use of the wellhead device, facilitating the accurate installation of the wellhead device.

[0028] In this embodiment, the anti-offset mounting mechanism 3 includes four guide posts 321 evenly distributed in a ring on the support plate 41. A stud 322 is also vertically arranged on the support plate 41, and the lower end of the stud 322 is connected to the output end of the drive motor 323. Above the support plate 41, a platform 33 is provided. On the platform 33, a through hole 331 corresponding to the guide post 321 and a through hole 332 corresponding to the stud 322 are provided. A sleeve 333 is arranged in the through hole 331, and a sleeve 334 is arranged in the through hole 332. The inner wall of the sleeve 334 has internal threads and is threadedly connected to the stud 322. By driving the stud 322 to rotate through the drive motor 323, the platform 33 can move up and down along the stud 322.

[0029] In this embodiment, an opening 335 is provided in the middle of the platform 33, and a platform 34 is arranged above it. A slide rail 341 and a linear drive unit 342 are symmetrically and parallelly arranged outside the opening 335. There are several sliders 343 in the slide rail 341. An opening 344 is provided in the middle of the platform 34. The sliders 343 and the moving blocks of the linear drive unit 342 are both connected to the bottom surface of the platform 34. A platform 35 is arranged above the platform 34. A slide rail 351 and a linear drive unit 352 are symmetrically and parallelly arranged outside the opening 344. There are several sliders 353 in the slide rail 351. An opening 354 is provided in the middle of the platform 35. The sliders 353 and the moving blocks of the linear drive unit 352 are both connected to the bottom surface of the platform 35, and the slide rail 351 is perpendicular to the slide rail 341. The support ring 31 is inserted at the opening 354. By driving the platform 34 and the platform 35 to move horizontally through the linear drive unit 342 and the linear drive unit 352 respectively, the position adjustment of the support ring 31 in the two-dimensional plane can be realized, and further the horizontal position of the wellhead device body 2 can be accurately adjusted.

[0030] In this embodiment, the docking plate 22 includes an upper plate 222 and a lower plate 223, and the upper plate 222 and the lower plate 223 are rotatably connected. This structure can enable the wellhead device body 2 to adaptively adjust the angle within a certain range, which is a roller slewing support structure.

[0031] The working principle and beneficial effects of the above technical solution are as follows: During use, first, determine the installation position on the ground. Place the support plate 41 of the installation platform 4 at the predetermined position, and place the wellhead body 1 in the first opening 411 of the support plate 41. Then, use a hoisting device to lift and transport the wellhead device body 2, so that the docking plate 22 of the wellhead device body 2 contacts the top surface of the support ring 31. Drive the stud 322 to rotate through the drive motor 323, and adjust the height of the first platform 33 to make the wellhead device body 2 in a suitable vertical position. Then, adjust the horizontal positions of the second platform 34 and the third platform 35 through the first linear drive unit 342 and the second linear drive unit 352, and rotate the wellhead body 1 to align the threaded holes on the two flange plates, insert bolts, and control the drive motor 323 to drive the stud 322 to rotate, adjust the height of the first platform 33, so that the two flange plates are in contact. Finally, use bolts and nuts to lock and dock the wellhead body 1 and the wellhead device body 2 together to complete the installation.

[0032] Compared with the prior art, the present invention can realize the single-person rapid installation of the wellhead device body 2 through the anti-offset installation mechanism 3. Compared with traditional hoisting, at least two people must cooperate to complete the docking efficiently, which improves work efficiency, reduces labor costs, and after the installation is completed, the anti-offset installation mechanism 3 can also support the wellhead device body 2 to prevent it from shifting. Embodiment 2

[0033] As Figure 1-4 shown, on the basis of Embodiment 1, in order to adapt to different ground conditions and keep the support plate 41 in a horizontal state, in this embodiment, a plurality of threaded installation holes 412 are evenly distributed on the periphery of the support plate 41, and the ground anchor 5 is threadedly connected in the threaded installation holes 412. The ground anchor 5 includes an anchor rod 51, the top of the anchor rod 51 is provided with a docking joint 511 for convenient connection with external equipment; the middle part is provided with an external thread part 512 for connection with the support plate 41 and other components; the bottom is provided with a pointed part 513 for facilitating insertion into the ground, and a spiral blade 514 is arranged on the anchor rod 51 above the pointed part 513. The spiral blade 514 includes a left-handed part 5141 and a right-handed part 5142 arranged longitudinally. This structure can make the ground anchor 5 more firmly fixed on the ground, enhance the stability of the installation platform 4, and thus reduce the possibility of wellhead offset.

[0034] During use, connect the docking joint with a wrench and screw the ground anchor 5 into the ground. When installing the ground anchor 5, use the pointed part 513 at the bottom of the anchor rod 51 and the spiral blade 514 to screw the anchor rod 51 into the ground, so that the ground anchor 5 is firmly fixed on the ground. By adjusting the length of the anchor rod extending out of the support plate 41 to contact the ground, the support plate 41 can be in a horizontal state to meet the installation requirements of different terrains. Embodiment 3

[0035] As Figure 1-6As shown, on the basis of Embodiment 2, in this embodiment, a limiting mechanism 6 is also threadedly arranged outside the anchor rod 51. The limiting mechanism 6 includes a sleeve 61, and the sleeve 61 is threadedly connected to the external thread portion. A plurality of support arms 62 are annularly and evenly distributed on the outer side of the sleeve 61. The top ends of the support arms 62 are rotatably connected to a first rotating shaft seat 63 on the outer side wall of the sleeve 61 through a rotating shaft 64. A limiting block 65 is arranged on the outer side of the first rotating shaft seat 63 facing outwards. Two locking nuts 7 are also arranged on the external thread portion 512, respectively located on the upper and lower sides of the support plate 41, for fixing the ground anchor 5 to the support plate 41 to prevent the ground anchor 5 from loosening.

[0036] During use, after the adjustment of the anchor rod 51 is completed, by rotating the sleeve 61, the limiting mechanism 6 descends, so that the support arms 62 contact the ground, further improving the stability of the installation platform 4. Embodiment 4

[0037] As Figure 1-14 shown, on the basis of Embodiment 3, in this embodiment, a fine leveling mechanism 8 is arranged on the support plate 41. The fine leveling mechanism 8 includes a plurality of third slide rails 81 annularly distributed with the opening 411 as the center. A screw rod 82 is arranged in the third slide rail 81 along the extending direction of the slide rail. A third slider 83 is arranged on the screw rod 82. The screw rod 82 horizontally penetrates through the third slider 83 and is threadedly connected to the third slider 83. An adjusting handle 84 is arranged on the outer side of the screw rod 82. A pressure sensor 85 is arranged on the top surface of the slider 83. A second rotating shaft seat 86 is arranged on the top surface of the pressure sensor 85. A roller 87 is rotatably arranged in the second rotating shaft seat 86. An adjusting disc 88 is arranged above the support plate 41. The upper surface of the adjusting disc 88 is a plane, and the lower bottom surface is a conical structure. A plurality of rollers 87 contact the bottom surface of the adjusting disc 88. The guiding column 321 and the driving motor 323 are both arranged on the upper surface of the adjusting disc 88. By rotating the adjusting handle 84, the third slider 83 can be moved on the third slide rail 81, and further the supporting height of the roller 87 on the adjusting disc 88 can be adjusted to realize the fine leveling of the adjusting disc 88, further improving the installation accuracy and stability of the wellhead device.

[0038] Platform 1 33 includes half part 1 336 and half part 2 337, which are plugged into each other. Platform 2 34 includes half part 3 345 and half part 4 346, which are plugged into each other. Platform 3 35 includes half part 5 355 and half part 6 356, which are plugged into each other. The support ring 31 includes half part 7 312 and half part 8 313, which are plugged into each other. The adjustment disk also includes two mutually plugged parts. This design facilitates transportation and installation. A number of connecting forks 1 2221 are evenly distributed on the outer side of the upper disk 222. Connecting forks 2 413 are provided on the outer side of the support plate 41 corresponding to each connecting fork 1 2221. A support member 9 is arranged between the connecting fork 1 2221 and the connecting fork 2 413. The support member 9 includes a middle sleeve 91. Adjusting rods 92 are threadedly connected to both ends of the middle sleeve 91. Connecting ball heads 93 are arranged at both ends of the adjusting rods 92. The two connecting ball heads 93 are respectively connected to the connecting fork 1 2221 and the connecting fork 2 413 through pin shafts 94. By adjusting the length of the support member 9, the stability and anti-offset ability of the wellhead device can be further enhanced.

[0039] During use, after the preliminary installation of the support plate 41 is completed, in order to ensure that the anti-offset installation mechanism 3 is in a vertical state, by rotating the handle, the contact position between the roller and the adjustment disk is adjusted, so that the upper surface of the adjustment disk is in a horizontal state. During adjustment, according to the pressure value feedback by the pressure sensor, the pressure balance when each roller contacts the adjustment disk is adjusted, so as to prevent local stress concentration and cause damage. After the wellhead body and the wellhead device body are installed, by sequentially removing the support ring, Platform 1, Platform 2, Platform 3 and the adjustment disk, they can be taken off for repeated use, and the support member is connected to the upper disk, so as to support the wellhead device body and prevent it from shifting.

[0040] The above is only a preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent replacements or changes, and all should be covered by the protection scope of the present invention.

Claims

1. An anti-offset integral wellhead device, characterized in that: It includes a wellhead body (1), a wellhead device body (2), an anti-offset installation mechanism (3) and an installation platform (4). Flange plates (21) are provided at the upper end of the wellhead body (1) and the lower end of the wellhead device body (2), and they are detachably connected by bolts. The installation platform (4) is arranged on the ground for installing the anti-offset installation mechanism (3). The installation platform (4) includes a support plate (41). An opening one (411) is provided in the middle of the support plate (41) for accommodating the wellhead body (1). A docking plate (22) is arranged on the outer side of the wellhead device body (2). The anti-offset installation mechanism (3) includes a support ring (31) and a support adjustment mechanism (32). The support ring (31) is arranged on the support adjustment mechanism (32), and the top surface of the support ring (31) is in contact with the bottom surface of the docking plate (22).

2. The integrated wellhead device for preventing deviation according to claim 1, wherein: A conical cylinder (311) is further provided on the outer side wall of the support ring (31), and an arc chamfer (221) is provided at the outer bottom edge of the docking plate (22).

3. The integral wellhead device for preventing deviation according to claim 1, characterized in that: A number of threaded installation holes (412) are evenly distributed on the periphery of the support plate (41), and ground anchors (5) are internally threaded in the threaded installation holes (412).

4. The integral wellhead device for preventing deviation according to claim 3, characterized in that: The ground anchor (5) includes an anchor rod (51). A docking joint (511) is provided at the top of the anchor rod (51). An external thread portion (512) is provided in the middle of the anchor rod (51). A pointed portion (513) is provided at the bottom of the anchor rod (51). A spiral blade (514) is provided on the anchor rod (51) above the pointed portion (513). The spiral blade (514) includes a left-handed portion (5141) and a right-handed portion (5142) arranged longitudinally.

5. The integrated wellhead device for preventing deviation according to claim 1, characterized in that: A limiting mechanism (6) is also threaded on the outer side of the anchor rod (51). The limiting mechanism (6) includes a sleeve (61). A number of support arms (62) are annularly and evenly distributed on the outer side of the sleeve (61). The top end of the support arm (62) is rotatably connected to a rotation shaft seat one (63) provided on the outer side wall of the sleeve (61) through a rotation shaft (64). A limiting block (65) is further provided on the outer side of the rotation shaft seat one (63) facing outward.

6. The integral wellhead device for preventing deviation according to claim 5, wherein: Two locking nuts (7) are also provided on the external thread portion (512), and the two locking nuts (7) are respectively arranged on the upper and lower sides of the support plate (41).

7. The integral wellhead device for preventing deviation according to claim 1, wherein: The anti-offset mounting mechanism (3) includes a number of guide posts (321) arranged in a circular and evenly distributed manner on the support plate (41). A stud (322) is also vertically arranged on the support plate (41). Above the support plate (41), there is also a platform one (33). On the platform one (33), there are a number of through holes one (331) corresponding to the guide posts (321) and through holes two (332) corresponding to the stud (322). A sleeve one (333) is arranged in the through hole one (331), and a sleeve two (334) is arranged in the through hole two (332). The inner wall of the sleeve two (334) is provided with internal threads, and the stud (322) is threadedly connected to the sleeve two (334). The lower end of the stud (322) is connected to the output end of the driving motor (323). In the middle of the platform one (33), there is an opening two (335). Above the platform one (33), there is a platform two (34). Outside the opening two (335), a slide rail one (341) and a linear driving unit one (342) are symmetrically and parallelly arranged. A number of sliders one (343) are arranged in the slide rail one (341). In the middle of the platform two (34), there is an opening three (344). The sliders one (343) and the moving blocks of the linear driving unit one (342) are both connected to the bottom surface of the platform two (34). Above the platform two (34), there is a platform three (35). Outside the opening three (344), a slide rail two (351) and a linear driving unit two (352) are symmetrically and parallelly arranged. A number of sliders two (353) are arranged in the slide rail two (351). In the middle of the platform three (35), there is an opening four (354). The sliders two (353) and the moving blocks of the linear driving unit two (352) are both connected to the bottom surface of the platform three (35). The slide rail two (351) and the slide rail one (341) are perpendicularly arranged. The support ring (31) is inserted and arranged at the opening four (354).

8. The integrated wellhead device for preventing deviation according to claim 1, characterized in that: The docking plate (22) includes an upper plate (222) and a lower plate (223), and the upper plate (222) and the lower plate (223) are rotatably connected.

9. The integrated wellhead device for preventing deviation according to claim 7, characterized in that: A fine leveling mechanism (8) is further provided on the support plate (41). The fine leveling mechanism (8) includes a plurality of slide rails three (81) annularly distributed around an opening one (411). A screw rod (82) is arranged in the slide rail three (81) along the extending direction of the slide rail. A slider three (83) is arranged on the screw rod (82). The screw rod (82) transversely penetrates through the slider three (83) and is in threaded connection with the slider three (83). An adjusting handle (84) is arranged on the outer side of the screw rod (82). A pressure sensor (85) is arranged on the top surface of the slider (83). A rotating shaft seat two (86) is arranged on the top surface of the pressure sensor (85). A roller (87) is rotatably arranged in the rotating shaft seat two (86). An adjusting disc (88) is further provided above the support plate (41). The upper surface of the adjusting disc (88) is a plane, and the lower bottom surface of the adjusting disc (88) is a conical structure. A plurality of rollers (87) are in contact with the bottom surface of the adjusting disc (88). A plurality of guide posts (321) and a driving motor (323) are arranged on the upper surface of the adjusting disc (88).

10. The integrated wellhead device for preventing deviation according to claim 9, characterized in that: The platform one (33) includes a half part one (336) and a half part two (337), and the half part one (336) and the half part two (337) are inserted into each other. The platform two (34) includes a half part three (345) and a half part four (346), and the half part three (345) and the half part four (346) are inserted into each other. The platform three (35) includes a half part five (355) and a half part six (356), and the half part five (355) and the half part six (356) are inserted into each other. The supporting ring (31) includes a half part seven (312) and a half part eight (313), and the half part seven (312) and the half part eight (313) are inserted into each other. A plurality of connecting forks one (2221) are evenly distributed on the outer side of the upper disc (222). Connecting forks two (413) are arranged on the outer side of the support plate (41) corresponding to each connecting fork one (2221). A support member (9) is arranged between the connecting fork one (2221) and the connecting fork two (413). The support member (9) includes a middle sleeve (91). Adjusting rods (92) are threadedly connected to both ends of the middle sleeve (91). Connecting ball heads (93) are arranged at both ends of the adjusting rods (92). The two connecting ball heads (93) are respectively connected to the connecting fork one (2221) and the connecting fork two (413) through a pin shaft (94).

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