Wellhead stabilizer lifting and extending platform for operation under pressure

Abstract

The utility model relates to the technical field of petrochemical engineering under-pressure operation, in particular to an under-pressure operation wellhead stabilizer lifting and extending platform which comprises a positioning assembly, a conical block is fixedly connected to the bottom of a fixing rod, a spring is fixedly connected to the interior of a sleeve, one end of the spring is fixedly connected with a limiting disc, and the other end of the spring is fixedly connected with a lifting assembly. The end, away from the spring, of the limiting disc is fixedly connected with a positioning rod, the end, away from the limiting disc, of the positioning rod is fixedly connected with a wedge-shaped block, and the wedge-shaped block is matched with the conical block. Compared with the prior art, a plurality of climbing frames surrounding the wellhead stabilizer are arranged on the bottom frame for placing the wellhead stabilizer, and the climbing frames are quickly arranged on the bottom frame through the positioning assemblies; and a worker can adjust the height of the bearing platform according to the installation height of the wellhead stabilizer and the double-ram blowout preventer through the lifting platform assembly installed on the bottom frame.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of petroleum chemical industry under pressure operation, especially relates to a kind of under pressure operation wellhead stabilizer elevating extension platform. BACKGROUND

[0002] Wellhead stabilizer is part of the wellhead device of oil drilling, for fixing and stabilizing wellhead, enhancing the integrity and stability of wellhead structure, guaranteeing subsequent operation safety, and when using wellhead stabilizer, double-gate blowout preventer is installed above wellhead stabilizer, which can quickly and effectively control wellhead when abnormal high pressure occurs in wellhead, to prevent blowout, double-gate blowout preventer and wellhead stabilizer cooperate, to provide safety guarantee for drilling operation, to avoid damage to personnel, equipment and environment caused by uncontrolled oil and gas spewing.

[0003] However, in actual situation, because the height of wellhead stabilizer of each well is different, it will lead to the installation position of blowout preventer and wellhead stabilizer being too high, when the height of wellhead stabilizer is too high, it is more troublesome to install double-gate blowout preventer and wellhead stabilizer, not only inconvenient for on-site operator to manually lock when installing blowout preventer and wellhead stabilizer, but also reduces the construction efficiency of construction site, cannot meet the actual use requirement, therefore, the utility model provides a kind of under pressure operation wellhead stabilizer elevating extension platform. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in prior art, and provides a kind of under pressure operation wellhead stabilizer elevating extension platform.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a kind of under pressure operation wellhead stabilizer elevating extension platform, bottom frame;

[0006] The upper end of the bottom frame is fixedly connected with four ladder groups through multiple positioning assemblies, the four ladder groups are distributed in a rectangular shape, the ladder groups in the first direction are provided with two groups, each group of the ladder groups has two, and further comprising:

[0007] Two lifting platform assemblies are fixedly installed on the upper end of the bottom frame, and the lifting platform assemblies are located between the two ladder groups in the group of ladder groups in the first direction.

[0008] Multiple driving assemblies are fixedly installed on the upper end of the bottom frame, and the driving assemblies are used to drive the lifting platform assemblies.

[0009] Multiple second holes are formed in the upper end of the bottom frame, multiple third holes are formed in the outer wall of the bottom frame, and the third holes are communicated with the second holes.

[0010] The positioning assembly comprises a fixed rod and a sleeve, the fixed rod is fixedly connected at the bottom of the ladder group, the bottom of the fixed rod is fixedly connected with a taper block, the fixed rod and the taper block are located inside the second hole, the sleeve is fixedly connected with the third hole, the inside of the sleeve is fixedly connected with a spring, one end of the spring is fixedly connected with a limiting disc, the limiting disc is slidingly connected with the inside of the sleeve, the end of the limiting disc away from the spring is fixedly connected with a positioning rod, the positioning rod is slidingly connected with the sleeve, the end of the positioning rod away from the limiting disc is fixedly connected with a wedge block, the wedge block and the positioning rod are slidingly connected with the third hole, the wedge block cooperates with the taper block, the inside of the sleeve is slidingly connected with a horizontal pull rod, and the horizontal pull rod is fixedly connected with the limiting disc.

[0011] As a further description of the above technical solution:

[0012] The first flower basket bolt is fixedly connected between the two ladder groups in the first direction, and the second flower basket bolt and the iron chain are fixedly connected between the two ladder groups in the second direction.

[0013] As a further description of the above technical solution:

[0014] Each of the ladder groups comprises two ladders, the two ladders in the same ladder group are distributed in an L shape, and a third flower basket bolt is fixedly installed between the two ladders in the same ladder group.

[0015] As a further description of the above technical solution:

[0016] The lifting platform assembly comprises two square fixed cylinders, the square fixed cylinders are fixedly connected at the upper end of the driving assembly, the inside of the square fixed cylinder is provided with a second groove, the inside of the second groove is rotatably connected with a lead screw, the outer wall of the lead screw is threadedly connected with a fixed block, the fixed block is slidingly connected with the second groove, the fixed block away from the lead screw is fixedly connected with a bearing platform, the driving assembly comprises a fixed box and a driving bevel gear, the fixed box is fixedly connected at the upper end of the chassis, the driving bevel gear is fixedly installed in the inside of the fixed box, the bottom of the lead screw penetrates through the fixed box and is fixedly connected with a driven bevel gear, the driven bevel gear is located in the inside of the fixed box, and the driving bevel gear is meshingly connected with the driven bevel gear.

[0017] As a further description of the above technical solution:

[0018] Further comprising a positioning pin, the two ends of the bearing platform are fixedly connected with a first fixed plate, a plurality of first holes are formed on the two ladder groups adjacent to the two sides of the bearing platform, and one end of the positioning pin penetrates through the first fixed plate and one of the first holes.

[0019] As a further description of the above technical solutions:

[0020] The two sides of the second groove are provided with first grooves, and the two sides of the fixing block are fixedly connected with sliding blocks, and the sliding blocks are in sliding connection with the first grooves.

[0021] As a further description of the above technical solutions:

[0022] The upper end of the fixing box is fixedly connected with the square fixing cylinder, the fixing box is rotatably connected with a handle, the inside of the fixing box is rotatably connected with a rotating shaft, one end of the rotating shaft is fixedly connected with the handle, and the other end of the handle is fixedly connected with the driving bevel gear.

[0023] As a further description of the above technical solutions:

[0024] The fixing assembly is fixedly connected with the fixing box, the fixing assembly comprises two second fixing plates, the two second fixing plates are fixedly connected to the two sides of the fixing box, and the second fixing plates are fixedly connected with the chassis through a plurality of bolts.

[0025] The utility model has the advantages of the following beneficial effects:

[0026] 1、Compared with the prior art, the wellhead stabilizer lifting and extending platform with pressure operation, by installing a plurality of climbing frames around the wellhead stabilizer on the chassis on which the wellhead stabilizer is placed, and quickly installing the climbing frames on the chassis through the positioning assembly, the working personnel can be prevented from falling to the ground when installing the double-plate blowout preventer and the wellhead stabilizer, and the height of the bearing platform can be adjusted according to the installation height of the wellhead stabilizer and the double-plate blowout preventer through the lifting platform assembly installed on the chassis, so that the manual locking of the blowout preventer and the wellhead stabilizer by the on-site operator is facilitated, and the construction efficiency of the construction site is improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 A perspective view of the wellhead stabilizer lifting and extending platform with pressure operation is provided for the utility model;

[0028] Figure 2 A chassis structure diagram of the wellhead stabilizer lifting and extending platform with pressure operation is provided for the utility model;

[0029] Figure 3 A positioning assembly structure diagram of the wellhead stabilizer lifting and extending platform with pressure operation is provided for the utility model;

[0030] Figure 4 A zoomed-in view of A of the utility model; Figure 3 ​

[0031] Figure 5 A sleeve internal structure diagram of the wellhead stabilizer lifting extension platform with pressure operation is provided in the utility model.

[0032] Figure 6 A bottom frame sectional view of the wellhead stabilizer lifting extension platform with pressure operation is provided in the utility model.

[0033] Figure 7 For Figure 6 The enlarged view of B of the wellhead stabilizer lifting extension platform with pressure operation is provided in the utility model.

[0034] Figure 8 For Figure 6 The enlarged view of C of the wellhead stabilizer lifting extension platform with pressure operation is provided in the utility model.

[0035] Figure 9 A partial sectional view of the wellhead stabilizer lifting extension platform with pressure operation is provided in the utility model.

[0036] Legend:

[0037] 1, bottom frame; 2, ladder group; 201, ladder; 3, positioning assembly; 301, spring; 302, limit disc; 303, horizontal pull rod; 304, sleeve; 305, positioning rod; 306, wedge block; 307, conical block; 308, fixed rod; 4, fixing assembly; 401, second fixed plate; 402, bolt; 5, driving assembly; 501, fixed box; 502, handle; 503, driving bevel gear; 504, rotating shaft; 6, lifting platform assembly; 601, square fixed cylinder; 602, lead screw; 603, fixed block; 604, driven bevel gear; 605, bearing platform; 606, second recess; 7, first basket bolt; 8, iron chain; 9, first fixed plate; 10, positioning pin; 11, first hole; 12, first recess; 13, sliding block; 14, second hole; 15, third hole; 16, second basket bolt; 17, third basket bolt. DETAILED DESCRIPTION

[0038] With reference to Figures 1-9 The utility model provides a kind of wellhead stabilizer lifting extension platform with pressure operation, comprising: bottom frame 1, multiple positioning assemblies 3, ladder group 2, two lifting platform assemblies 6, multiple driving assemblies 5.

[0039] The upper end of the chassis 1 is fixedly connected with four ladder groups 2 through a plurality of positioning assemblies 3, the four ladder groups 2 are distributed in a rectangular shape, the ladder groups 2 in a first direction are provided with two groups, each group of the ladder groups 2 has two, a lifting platform assembly 6 is fixedly installed on both sides of the upper end of the chassis 1, the lifting platform assembly 6 is located between the two ladder groups 2 in a group of the ladder groups 2 in the first direction, the height of the lifting platform assembly 6 is controlled to realize installation according to the installation height of different wellhead stabilizers and double ram blowout preventers, a driving assembly 5 is fixedly installed on the upper end of the chassis 1, the driving assembly 5 is used for driving the lifting platform assembly 6, the lifting platform assembly 6 is driven through the driving assembly 5, a plurality of second holes 14 are formed in the upper end of the chassis 1, a plurality of third holes 15 are formed in the outer wall of the chassis 1, the third holes 15 are in communication with the second holes 14, the positioning assembly 3 comprises a fixed rod 308 and a sleeve 304, the fixed rod 308 is fixedly connected at the bottom of the ladder group 2, the bottom of the fixed rod 308 is fixedly connected with a tapered block 307, the fixed rod 308 and the tapered block 307 are located in the second hole 14, the sleeve 304 is fixedly connected with the third hole 15, the inside of the sleeve 304 is fixedly connected with a spring 301, one end of the spring 301 is fixedly connected with a limiting disc 302, the limiting disc 302 is slidingly connected with the inside of the sleeve 304, the end of the limiting disc 302 away from the spring 301 is fixedly connected with a positioning rod 305, the positioning rod 305 is slidingly connected with the sleeve 304, the end of the positioning rod 305 away from the limiting disc 302 is fixedly connected with a wedge-shaped block 306, the wedge-shaped block 306 and the positioning rod 305 are slidingly connected with the third hole 15, the wedge-shaped block 306 cooperates with the tapered block 307, the inside of the sleeve 304 is slidingly connected with a horizontal pull rod 303, the horizontal pull rod 303 is fixedly connected with the limiting disc 302.

[0040] Specifically, the tapered block 307 at the lower end of the ladder group 2 is inserted into the second hole 14, at the same time, the positioning rod 305 on the third hole 15 in communication with the second hole 14 slides backward with the wedge-shaped block 306 until the tapered block 307 reaches the bottom of the second hole 14, at this time, since the outer wall of the positioning rod 305 is provided with the spring 301, when the tapered block 307 reaches the bottom of the second hole 14, the positioning rod 305 returns to the original position due to the elastic force of the spring 301, so that the wedge-shaped block 306 on the positioning rod 305 abuts against the upper end of the tapered block 307, thereby realizing installation of the ladder group 2, and the driving assembly 5 and the lifting platform assembly 6 are fixed on the upper end of the chassis 1 through the fixing assembly 4, so that the height of the lifting platform assembly 6 is controlled to realize installation according to the installation height of different wellhead stabilizers and double ram blowout preventers.

[0041] In an embodiment, the first basket bolt 7 is fixedly connected between two ladder groups 2 in the first direction, the second basket bolt 16 and the iron chain 8 are fixedly connected between two ladder groups 2 in the second direction, each ladder group 2 includes two ladders 201, the two ladders 201 in the same ladder group 2 are in L-shaped distribution, and the third basket bolt 17 is fixedly installed between the two ladders 201 in the same ladder group 2, and the ladder group 2 is connected through the third basket bolt 17, the first basket bolt 7, the second basket bolt 16 and the iron chain 8, so that the ladder group 2 is more firmly connected.

[0042] In an embodiment, the lifting platform assembly 6 includes two square fixed cylinders 601 fixedly connected to the upper end of the driving assembly 5, the inside of the square fixed cylinder 601 is provided with a second groove 606, the inside of the second groove 606 is rotatably connected with a lead screw 602, the outer wall of the lead screw 602 is threadedly connected with a fixed block 603, the fixed block 603 is slidably connected with the second groove 606, and the fixed block 603 away from the lead screw 602 is fixedly connected with a bearing platform 605. The driving assembly 5 includes a fixed box 501 and a driving bevel gear 503, the fixed box 501 is fixedly connected to the upper end of the chassis 1, the driving bevel gear 503 is fixedly installed in the inside of the fixed box 501, the bottom of the lead screw 602 penetrates through the fixed box 501 and is fixedly connected with a driven bevel gear 604, the driven bevel gear 604 is located in the inside of the fixed box 501, and the driving bevel gear 503 is meshingly connected with the driven bevel gear 604. The rotation of the lead screw 602 is driven by the driving assembly 5, so that the fixed block 603 on the lead screw 602 moves, thereby realizing the movement control of the bearing platform 605 connected with the fixed block 603.

[0043] In an embodiment, the first fixed plate 9 is fixedly connected to both ends of the bearing platform 605, a plurality of first holes 11 are formed in the two ladder groups 2 adjacent to the two sides of the bearing platform 605, and one end of the positioning pin 10 penetrates through the first fixed plate 9 and one of the first holes 11. The first fixed plate 9 is connected with the ladder group 2 through the positioning pin 10, so that the bearing platform 605 is more stable.

[0044] In an embodiment, the two sides of the second groove 606 are provided with a first groove 12, and the two sides of the fixed block 603 are fixedly connected with a sliding block 13, the sliding block 13 is slidably connected with the first groove 12, and the sliding block 13 slides on the first groove 12, so that the fixed block 603 moves more stably.

[0045] In an embodiment, the fixed box 501 is fixedly connected with the upper end of the chassis 1, the upper end of the fixed box 501 is fixedly connected with the square fixed cylinder 601, the fixed box 501 is rotatably connected with a handle 502, the fixed box 501 is rotatably connected with a rotating shaft 504, one end of the rotating shaft 504 is fixedly connected with the handle 502, the other end of the handle 502 is fixedly connected with a driving bevel gear 503, the driving bevel gear 503 is rotated by rotating the handle 502 on the fixed box 501, so that the rotating shaft 504 is rotated, thereby realizing the rotation of the lead screw 602 connected with the driven bevel gear 604.

[0046] In an embodiment, the fixed assembly 4 is further included, the fixed assembly 4 is fixedly connected with the fixed box 501, the fixed assembly 4 includes two second fixed plates 401, the two second fixed plates 401 are fixedly connected with the two sides of the fixed box 501 respectively, the second fixed plate 401 is fixedly connected with the chassis 1 through a plurality of bolts 402, the second fixed plate 401 connected with the fixed box 501 is fixed with the chassis 1 through the bolt 402, thereby fixing the driving assembly 5.

[0047] Finally, it should be noted that: the above only for the preferred embodiments of the present application have been described and are not intended to limit the present application, although the foregoing detailed description of the present application has been made, for those skilled in the art, it can still be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A wellhead stabilizer lifting extension platform with pressure operation, comprising: a chassis (1); characterized in that the upper end of the chassis (1) is fixedly connected with four ladder groups (2) through a plurality of positioning assemblies (3), the four ladder groups (2) are distributed in a rectangular shape, the ladder groups (2) in the first direction are provided in two groups, each group of the ladder groups (2) has two, and further comprising: two lifting platform assemblies (6) fixedly installed on the upper end of the chassis (1) on both sides, the lifting platform assemblies (6) are located between the two ladder groups (2) in a group of the ladder groups (2) in the first direction; a plurality of drive assemblies (5) fixedly installed on the upper end of the chassis (1), the drive assemblies (5) are used to drive the lifting platform assemblies (6); a plurality of second holes (14) are formed in the upper end of the chassis (1), a plurality of third holes (15) are formed in the outer wall of the chassis (1), and the third holes (15) are in communication with the second holes (14); the positioning assembly (3) comprises a fixed rod (308) and a sleeve (304), the fixed rod (308) is fixedly connected at the bottom of the ladder group (2), the bottom of the fixed rod (308) is fixedly connected with a tapered block (307), the fixed rod (308) and the tapered block (307) are located inside the second hole (14), the sleeve (304) is fixedly connected with the third hole (15), the inside of the sleeve (304) is fixedly connected with a spring (301), one end of the spring (301) is fixedly connected with a limiting disc (302), the limiting disc (302) is slidingly connected with the inside of the sleeve (304), the end of the limiting disc (302) away from the spring (301) is fixedly connected with a positioning rod (305), the positioning rod (305) is slidingly connected with the sleeve (304), the end of the positioning rod (305) away from the limiting disc (302) is fixedly connected with a wedge block (306), the wedge block (306) and the positioning rod (305) are slidingly connected with the third hole (15), the wedge block (306) cooperates with the tapered block (307), and the inside of the sleeve (304) is slidingly connected with a horizontal pull rod (303), the horizontal pull rod (303) is fixedly connected with the limiting disc (302).

2. A riser platform with a wellhead stabilizer for use in a pressurized well according to claim 1, characterized in that: A first basket bolt (7) is fixedly connected between the two ladder groups (2) in the first direction, a second basket bolt (16) and an iron chain (8) are fixedly connected between the two ladder groups (2) in the second direction.

3. A riser platform with a wellhead stabilizer for use in a pressurized well, according to claim 1, characterized in that: Each of the ladder groups (2) comprises two ladders (201), the two ladders (201) in the same ladder group (2) are distributed in an L shape, and a third basket bolt (17) is fixedly installed between the two ladders (201) in the same ladder group (2).

4. The elevated spreader platform with a wellhead stabilizer operating under pressure according to claim 1, characterized in that: The lifting platform assembly (6) comprises two square fixed cylinders (601) fixedly connected to the upper end of the driving assembly (5), a second groove (606) is formed in the square fixed cylinder (601), a lead screw (602) is rotatably connected in the second groove (606), a fixed block (603) is threadedly connected to the outer wall of the lead screw (602), the fixed block (603) is slidably connected with the second groove (606), and a bearing platform (605) is fixedly connected to the fixed block (603) away from the lead screw (602), the driving assembly (5) comprises a fixed box (501) and a driving bevel gear (503), the fixed box (501) is fixedly connected to the upper end of the chassis (1), the driving bevel gear (503) is fixedly installed in the fixed box (501), the bottom of the lead screw (602) penetrates through the fixed box (501) and is fixedly connected with a driven bevel gear (604), the driven bevel gear (604) is located in the fixed box (501), and the driving bevel gear (503) is meshedly connected with the driven bevel gear (604).

5. A riser platform with a wellhead stabilizer for use in a pressurized well according to claim 4, wherein: A positioning pin (10) is further arranged, the two ends of the bearing platform (605) are fixedly connected with first fixed plates (9), a plurality of first holes (11) are formed in the two ladder climbing groups (2) adjacent to the two sides of the bearing platform (605), and one end of the positioning pin (10) penetrates through the first fixed plate (9) and one of the first holes (11).

6. A riser platform with a wellhead stabilizer for use in a pressurized well, according to claim 4, wherein: First grooves (12) are formed in the two sides of the second groove (606), and sliding blocks (13) are fixedly connected to the two sides of the fixed block (603) and slidably connected with the first grooves (12).

7. A riser platform with a wellhead stabilizer for use in a pressurized well, according to claim 4, wherein: The fixed box (501) is fixedly connected to the upper end of the chassis (1), the upper end of the fixed box (501) is fixedly connected with the square fixed cylinder (601), a handle (502) is rotatably connected to the fixed box (501), a rotating shaft (504) is rotatably connected in the fixed box (501), one end of the rotating shaft (504) is fixedly connected with the handle (502), and the other end of the handle (502) is fixedly connected with the driving bevel gear (503).

8. A riser platform with a wellhead stabilizer for use in a pressurized well according to claim 7, wherein: A fixing assembly (4) is further arranged, the fixing assembly (4) is fixedly connected with the fixed box (501), and the fixing assembly (4) comprises two second fixed plates (401) fixedly connected to the two sides of the fixed box (501), and the second fixed plates (401) are fixedly connected with the chassis (1) through a plurality of bolts (402).

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