CN220336849U

CN220336849U - Wellhead tubular column righting device for pressurized operation

Info

Publication number: CN220336849U
Application number: CN202321221339.5U
Authority: CN
Inventors: 李惠洋子
Original assignee: Shaanxi Stan Energy Development Co ltd
Current assignee: Shaanxi Stan Energy Development Co ltd
Priority date: 2023-05-19
Filing date: 2023-05-19
Publication date: 2024-01-12
Anticipated expiration: 2033-05-19

Abstract

The utility model provides a wellhead pipe column centralizing device for pressurized operation, and belongs to the technical field of wellhead pipe column centralizing. The wellhead tubular column centralizing device for pressurized operation comprises a first limiting semi-ring, a second limiting semi-ring and a first rotating shaft, wherein the first limiting semi-ring and the second limiting semi-ring are rotationally connected through the first rotating shaft, and a centralizing mechanism comprises a chute which is arranged on the outer walls of the first limiting semi-ring and the second limiting semi-ring; the sliding block is in sliding connection with the inner wall of the sliding groove; the reinforcing plate is fixedly connected to the inner side of the sliding block; the clamping plate is fixedly connected to the inner side of the reinforcing plate; the spring fixed connection is between the inner wall of slider and spout, supports the tubular column through the grip block with first spacing semi-ring one side, and is fixed with first spacing semi-ring and the spacing semi-ring of second, right the tubular column through the elasticity and the grip block of spring, and the tubular column promotes the grip block and outwards slides, compression spring, can be suitable for different tubular columns, and the practicality is stronger.

Description

Wellhead tubular column righting device for pressurized operation

Technical Field

The utility model relates to the technical field of wellhead pipe column centralizing, in particular to a wellhead pipe column centralizing device for pressurized operation.

Background

In the process of developing an oil-gas field, if the conditions of formation pressure change, underground accidents, changing the exploitation mode, process technology, adjusting the exploitation layer system and the like are met, well repair operation is often needed. Oilfield workover refers to a process of frequent, repeated maintenance repair to lower or replace production strings into or out of oil or water well casings in order to understand the failure of the oil or water well, recover the production capacity, and reform the reservoir to increase the production capacity of the oil or water well, for greater economic benefits.

The wellhead centralizing device is special equipment for centralizing an oilfield wellhead pipe column, the equipment used at present is installed on a working derrick, the existing wellhead centralizing device solves the wellhead correction problem of a surface casing, but cannot be used for other pipe columns, cannot be used for multiple purposes, and is poor in practicality, so that the wellhead pipe column centralizing device for pressurized working is provided to solve the problems.

Disclosure of Invention

In order to overcome the above disadvantages, the present utility model provides a wellhead string centralizer for pressurized operations that overcomes or at least partially solves the above-described technical problems.

The utility model provides a wellhead tubular column centralizing device for pressurized operation, which comprises a first limiting semi-ring, a second limiting semi-ring and a first rotating shaft, wherein the first limiting semi-ring and the second limiting semi-ring are rotationally connected through the first rotating shaft,

the centering mechanism is arranged between the first limiting semi-ring and the second limiting semi-ring and comprises

The sliding groove is formed in the outer walls of the first limiting semi-ring and the second limiting semi-ring;

the sliding block is in sliding connection with the inner wall of the sliding groove;

the reinforcing plate is fixedly connected to the inner side of the sliding block;

the clamping plate is fixedly connected to the inner side of the reinforcing plate;

and the spring is fixedly connected between the sliding block and the inner wall of the sliding groove.

In a preferred scheme, the inner wall of the chute is fixedly connected with a limiting rod, and the limiting rod is in sliding connection with the sliding block.

In a preferred scheme, a first connecting plate is fixedly connected between the first limiting semi-ring and the first rotating shaft, the first rotating shaft is rotationally connected with a circular ring, and a second connecting plate is fixedly connected between the circular ring and the second limiting semi-ring.

In a preferred scheme, the outer walls of the first limiting semi-ring and the second limiting semi-ring are fixedly connected with fixing plates, and the two fixing plates are fixedly connected through bolts.

In a preferred scheme, the bottoms of the first limiting semi-ring and the second limiting semi-ring are provided with supporting mechanisms, the supporting mechanisms are four, and the four supporting mechanisms are arranged in an annular equidistant mode.

In a preferred scheme, the supporting mechanism comprises two mounting plates, wherein the two mounting plates are fixedly connected to the bottoms of the first limiting semi-ring or the second limiting semi-ring, and a second rotating shaft is fixedly connected between the two mounting plates.

In a preferred scheme, the second rotating shaft is rotatably connected with a supporting rod, and the supporting rod is slidably connected with a supporting sleeve.

In a preferred scheme, the bottom of support sleeve fixedly connected with bottom plate, the bottom fixedly connected with centrum of bottom plate, the outer wall fixedly connected with barb of centrum.

In a preferred scheme, screw holes are formed in one of the support sleeves and one of the support rods, a plurality of screw holes are formed in the screw holes, and a plurality of screw holes are formed in the screw holes at equal intervals.

The utility model provides a wellhead tubular column righting device for pressurized operation, which has the beneficial effects that:

1. the clamping plate on one side of the first limiting semi-ring is propped against the pipe column, then the first limiting semi-ring and the second limiting semi-ring are closed, then the pipe column is fixed through bolts, the pipe column is righted through the elastic force of the spring and the clamping plate, the clamping plate is pushed to slide outwards through the pipe column, the sliding block compresses the spring, different pipe columns can be applied, and the practicability is stronger.

2. Through inserting centrum and barb under the ground for bottom plate and ground contact provide holding power for righting mechanism, prevent that the tubular column from taking place to incline, and rotate with the second pivot through setting up the bracing piece and be connected, bracing piece and support sleeve sliding connection can be according to the environmental adjustment length and the angle in scene, can use the support of various different environment fixed, and the suitability is stronger.

Drawings

For a clearer description of the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art;

FIG. 1 is a perspective view of an overall structure provided by an embodiment of the present utility model;

FIG. 2 is a schematic top view of an embodiment of the present utility model;

fig. 3 is a top view and a perspective view of a first limiting half ring and a second limiting half ring according to an embodiment of the present utility model;

fig. 4 is a bottom structural perspective view of a first limiting half ring and a second limiting half ring according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a supporting mechanism according to an embodiment of the present utility model;

in the figure: 1. a first limiting half ring; 2. a righting mechanism; 201. a chute; 202. a slide block; 203. a reinforcing plate; 204. a clamping plate; 205. a spring; 206. a limit rod; 3. a second limiting semi-ring; 4. a first rotating shaft; 5. a first connection plate; 6. a circular ring; 7. a second connecting plate; 8. a fixing plate; 9. a support mechanism; 901. a mounting plate; 902. a second rotating shaft; 903. a support rod; 904. a support sleeve; 905. a bottom plate; 906. a vertebral body; 907. a barb; 10. and (3) a threaded hole.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a well head tubular column righting device of operation under pressure, includes first spacing semi-ring 1, second spacing semi-ring 3 and first pivot 4, and first spacing semi-ring 1 and second spacing semi-ring 3 pass through first pivot 4 rotation and connect, righting mechanism 2, and righting mechanism 2 sets up between first spacing semi-ring 1 and second spacing semi-ring 3, and righting mechanism 2 includes spout 201, and spout 201 is seted up at the outer wall of first spacing semi-ring 1 and second spacing semi-ring 3; the sliding block 202 is in sliding connection with the inner wall of the sliding groove 201; the reinforcing plate 203, the reinforcing plate 203 is fixedly connected to the inner side of the sliding block 202; a clamping plate 204, wherein the clamping plate 204 is fixedly connected to the inner side of the reinforcing plate 203; the spring 205 is fixedly connected between the sliding block 202 and the inner wall of the sliding groove 201, the limiting rod 206 is fixedly connected to the inner wall of the sliding groove 201, the limiting rod 206 is in sliding connection with the sliding block 202, the clamping plate 204 on one side of the first limiting semi-ring 1 is propped against a pipe column, then the first limiting semi-ring 1 and the second limiting semi-ring 3 are combined and fixed through bolts, the pipe column is straightened through the elastic force of the spring 205 and the clamping plate 204, and the clamping plate 204 is pushed to slide outwards through the pipe column, so that the sliding block 202 compresses the spring 205, different pipe columns can be applied, and the practicability is higher;

a first connecting plate 5 is fixedly connected between the first limiting semi-ring 1 and the first rotating shaft 4, the first rotating shaft 4 is rotationally connected with a circular ring 6, a second connecting plate 7 is fixedly connected between the circular ring 6 and the second limiting semi-ring 3, fixed plates 8 are fixedly connected to the outer walls of the first limiting semi-ring 1 and the second limiting semi-ring 3, the two fixed plates 8 are fixedly connected through bolts, and the opening and closing of the first limiting semi-ring 1 and the second limiting semi-ring 3 can be controlled by arranging the first rotating shaft 4, the circular ring 6, the second connecting plate 7 and the first connecting plate 5, so that the device is convenient to install and the working efficiency is improved;

the bottoms of the first limiting semi-ring 1 and the second limiting semi-ring 3 are provided with supporting mechanisms 9, the supporting mechanisms 9 are provided with four supporting mechanisms 9 which are arranged in an annular equidistant mode, each supporting mechanism 9 comprises two mounting plates 901, each mounting plate 901 is fixedly connected to the bottom of the first limiting semi-ring 1 or the bottom of the second limiting semi-ring 3, a second rotating shaft 902 is fixedly connected between each mounting plate 901, each second rotating shaft 902 is rotatably connected with a supporting rod 903, each supporting rod 903 is slidably connected with a supporting sleeve 904, the bottom of each supporting sleeve 904 is fixedly connected with a bottom plate 905, the bottom of each bottom plate 905 is fixedly connected with a cone 906, the outer wall of each cone 906 is fixedly connected with a barb 907, the cone 906 and the barb are inserted under the ground, the bottom plates 905 are in contact with the ground to provide supporting force for the righting mechanism 2, the pipe columns are prevented from inclining, each supporting rod 903 is rotatably connected with the second rotating shafts 902 through the arrangement of the supporting rods 903, the supporting rods 903 can be slidably connected with the supporting sleeves 904, and various environments can be used according to the on-site environment adjustment length and angle, and the applicability is high;

screw holes 10 are formed in one of the support sleeves 904 and one of the support rods 903, a plurality of screw holes 10 are formed in the screw holes 10, the screw holes 10 are formed in equal intervals, and one of the support sleeves 904 and one of the support rods 903 are fixed through bolts so as to prevent the support rods 903 from sliding in the support sleeves 904.

Specifically, the working process or working principle of the wellhead tubular column righting device for pressurized operation is as follows: the clamping plate 204 on one side of the first limiting semi-ring 1 is propped against the pipe column, then the first limiting semi-ring 1 and the second limiting semi-ring 3 are closed, then the pipe column is righted through the elastic force of the spring 205 and the clamping plate 204, the clamping plate 204 is pushed to slide outwards through the pipe column, the sliding block 202 compresses the spring 205, different pipe columns can be applied, the practicability is stronger, the opening and closing of the first limiting semi-ring 1 and the second limiting semi-ring 3 can be controlled through the arrangement of the first rotating shaft 4, the circular ring 6, the second connecting plate 7 and the first connecting plate 5, the device is convenient to install, and the working efficiency is improved.

Through inserting centrum 906 and barb 907 under the ground for bottom plate 905 and ground contact provide the holding power for righting mechanism 2, prevent that the tubular column from taking place to incline, and rotate with second pivot 902 through setting up bracing piece 903 and be connected, bracing piece 903 and support sleeve 904 sliding connection can be according to the environmental adjustment length and the angle of scene, can use the support of various different environment fixed, and the suitability is stronger, and after the installation is accomplished, is fixed one of them support sleeve 904 and one of them bracing piece 903 through the bolt, in order to prevent that bracing piece 903 from sliding in support sleeve 904.

Claims

1. The wellhead tubular column righting device for pressurized operation is characterized by comprising a first limiting semi-ring (1), a second limiting semi-ring (3) and a first rotating shaft (4), wherein the first limiting semi-ring (1) and the second limiting semi-ring (3) are rotationally connected through the first rotating shaft (4);

the centering mechanism (2), the centering mechanism (2) is arranged between the first limiting semi-ring (1) and the second limiting semi-ring (3), and the centering mechanism (2) comprises;

the sliding groove (201) is formed in the outer walls of the first limiting semi-ring (1) and the second limiting semi-ring (3);

the sliding block (202) is connected with the inner wall of the sliding groove (201) in a sliding manner;

the reinforcing plate (203) is fixedly connected to the inner side of the sliding block (202);

a clamping plate (204), wherein the clamping plate (204) is fixedly connected to the inner side of the reinforcing plate (203);

the spring (205), the spring (205) is fixedly connected between the sliding block (202) and the inner wall of the chute (201).

2. The wellhead tubular column centralizing device for pressurized operation according to claim 1, wherein a limiting rod (206) is fixedly connected to the inner wall of the sliding groove (201), and the limiting rod (206) is slidably connected with the sliding block (202).

3. The wellhead tubular column righting device for pressurized operation according to claim 1, wherein a first connecting plate (5) is fixedly connected between the first limiting semi-ring (1) and the first rotating shaft (4), the first rotating shaft (4) is rotatably connected with a circular ring (6), and a second connecting plate (7) is fixedly connected between the circular ring (6) and the second limiting semi-ring (3).

4. The wellhead tubular column righting device for pressurized operation according to claim 3, wherein the outer walls of the first limiting semi-ring (1) and the second limiting semi-ring (3) are fixedly connected with fixing plates (8), and the two fixing plates (8) are fixedly connected through bolts.

5. The wellhead tubular column righting device for pressurized operation according to claim 4, wherein the bottoms of the first limiting semi-ring (1) and the second limiting semi-ring (3) are provided with supporting mechanisms (9), the supporting mechanisms (9) are four, and the four supporting mechanisms (9) are arranged in an annular equidistant mode.

6. The wellhead tubular column righting device for pressurized operation according to claim 5, wherein the supporting mechanism (9) comprises two mounting plates (901), the two mounting plates (901) are fixedly connected to the bottoms of the first limiting semi-ring (1) or the second limiting semi-ring (3), and a second rotating shaft (902) is fixedly connected between the two mounting plates (901).

7. The wellhead string centralizing device for pressurized work according to claim 6, wherein the second rotating shaft (902) is rotatably connected with a supporting rod (903), and the supporting rod (903) is slidably connected with a supporting sleeve (904).

8. The wellhead string centralizing device for pressurized operation according to claim 7, wherein a bottom plate (905) is fixedly connected to the bottom of the supporting sleeve (904), a cone (906) is fixedly connected to the bottom of the bottom plate (905), and barbs (907) are fixedly connected to the outer wall of the cone (906).

9. The wellhead string centralizing device for pressurized operation according to claim 8, wherein threaded holes (10) are formed in one of the supporting sleeves (904) and one of the supporting rods (903), the threaded holes (10) are formed in a plurality of the threaded holes (10) at equal intervals.