CN212535600U

CN212535600U - Oil field well head strutting arrangement

Info

Publication number: CN212535600U
Application number: CN202021228934.8U
Authority: CN
Inventors: 兰卫家; 刘志刚; 房新扬
Original assignee: Top Well Petroleum Technologies Co ltd
Current assignee: Top Well Petroleum Technologies Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-02-12
Anticipated expiration: 2030-06-29

Abstract

The utility model provides an oil field well head strutting arrangement. The oil field well head strutting arrangement includes: the turntable is supported and supported by the platform, and a through hole is formed in the center of the turntable; the square slip is arranged in the through hole and is positioned at the lower part of the through hole; the lower supporting tile is arranged on the turntable, a flange is arranged at the lower end of the lower supporting tile, and the flange is embedded into the upper part of the through hole; the upper supporting tile is arranged above the lower supporting tile, the lower end of the lifting flange short section is connected with the inlet cross joint, the lifting flange short section upwards penetrates through the square slip, the lower supporting tile and the upper supporting tile, the upper end of the lifting flange short section is fixedly connected with an upper flange, and the upper supporting tile is abutted to the lower end face of the upper flange; and the lifting device is abutted between the upper support tile and the lower support tile. The utility model provides an among the prior art too big problem of load that the well head receives.

Description

Oil field well head strutting arrangement

Technical Field

The utility model relates to an oil field well workover corollary equipment field, concretely relates to oil field well head strutting arrangement.

Background

In conventional snubbing operations, the blowout preventer stack is installed directly above the wellhead, such as an offshore well. In the operation process, the weight of wellhead equipment and an operation pipe column can be completely applied to a wellhead, the wellhead is subjected to overlarge load, a riser pipe can be bent or even damaged, once the riser pipe is damaged, oil gas can be leaked into seawater in the normal production process of an oil well, and the consequences are very serious.

SUMMERY OF THE UTILITY MODEL

Problem to prior art existence, the utility model aims to provide an oil field well head strutting arrangement to solve among the prior art too big problem of load that the well head receives.

In order to achieve the above object, the utility model provides an oil field well head strutting arrangement, include: the turntable is supported and supported by the platform, and a through hole is formed in the center of the turntable; the square slip is arranged in the through hole and is positioned at the lower part of the through hole; the lower supporting tile is arranged on the turntable, a flange is arranged at the lower end of the lower supporting tile, and the flange is embedded into the upper part of the through hole; the upper supporting tile is arranged above the lower supporting tile, the lower end of the lifting flange short section is connected with the inlet cross joint, the lifting flange short section upwards penetrates through the square slip, the lower supporting tile and the upper supporting tile, the upper end of the lifting flange short section is fixedly connected with an upper flange, and the upper supporting tile is abutted to the lower end face of the upper flange; and the lifting device is abutted between the upper support tile and the lower support tile.

Further, the lifting device includes: a piston rod of the hydraulic cylinder is arranged downwards and is abutted against the upper end surface of the lower support tile; the ring frame is arranged between the upper supporting tile and the lower supporting tile, the guide pipe penetrates through the ring frame upwards, the upper end face of the ring frame is abutted to the lower end face of the upper supporting tile, and the ring frame is fixedly connected with the cylinder body of the hydraulic cylinder.

Further, oil field well head strutting arrangement still includes a plurality of location lead screws, and a plurality of location lead screws set up along the circumference of ring frame, connect through location lead screw between carousel and the ring frame.

Furthermore, the number of the hydraulic cylinders is multiple, and the hydraulic cylinders are arranged along the circumferential direction of the ring frame.

Furthermore, a positioning groove is formed in the upper end face of the lower supporting tile, a piston rod of the hydraulic cylinder extends into the positioning groove, and the end portion of the piston rod of the hydraulic cylinder abuts against the bottom of the positioning groove.

Adopt the utility model discloses well oil field well head strutting arrangement has following technological effect:

the lower end of the rising flange nipple is connected with a wellhead four-way joint, the upper end fixedly connected with of the rising flange nipple is connected with an upper flange, an upper supporting tile is abutted to the lower end face of the upper flange, the lifting device is abutted between the upper supporting tile and a lower supporting tile, the weight of wellhead equipment and an operation pipe column can be transmitted to a rotary table, the load borne by a wellhead is remarkably reduced, and a water-resisting guide pipe is well protected.

And secondly, the hydraulic cylinders are arranged along the circumferential direction of the ring frame, so that the force transmitted to the turntable can be uniformly distributed on the turntable, and the local stress is prevented from being overlarge. Meanwhile, the size of the load loaded on the wellhead can be accurately controlled by regulating and controlling the oil pressure of the hydraulic cylinder.

Drawings

FIG. 1 is a schematic cross-sectional view of an oilfield wellhead support device of the present invention;

10. a wellhead cross joint; 20. lifting the flange short section; 21. an upper flange; 30. a turntable; 31. square slips; 40. a lower support tile; 41. a positioning groove; 42. a flange; 50. an upper support tile; 60. a lifting device; 61. a hydraulic cylinder; 62. a ring frame; 70. positioning a lead screw; 80. and (4) supporting the platform.

Detailed Description

To clearly illustrate the design concept of the present invention, the following description is made with reference to the examples.

In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions of the present invention are described below clearly and completely with reference to the drawings in the examples of the present invention, and it is obvious that the described examples are only a part of examples of the present invention, but not all examples. Based on the middle examples of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely to distinguish similar items and are not to be construed as requiring a particular order or sequence, and it is to be understood that such uses are interchangeable under appropriate circumstances.

The utility model provides an oil field well head strutting arrangement to solve among the prior art too big problem of load that the well head receives.

As shown in fig. 1, the oilfield wellhead supporting device comprises a turntable 30, a square slip 31, a lower support shoe 40, an upper support shoe 50 and a lifting device 60, wherein the turntable 30 is supported by a platform support 80, and a through hole is formed in the center of the turntable 30; the square slips 31 are arranged in the through hole and are positioned at the lower part of the through hole; the lower support tile 40 is arranged on the turntable 30, the lower end of the lower support tile 40 is provided with a flange 42, and the flange 42 is embedded into the upper part of the through hole;

the upper supporting tile 50 is arranged above the lower supporting tile 40, and the lower end of the lifting flange nipple 20 is connected with the wellhead four-way 10, in the embodiment, the lower end of the lifting flange nipple 20 is connected with the wellhead four-way 10 through a flange, the lifting flange nipple 20 upwards penetrates through the direction slip 31, the lower supporting tile 40 and the upper supporting tile 50, the upper end of the lifting flange nipple 20 is fixedly connected with the upper flange 21, and the upper supporting tile 50 is abutted to the lower end face of the upper flange 21; the lifting means 60 abuts between the upper and lower support tiles 50, 40.

As shown in fig. 1, in the present embodiment, the lifting device 60 includes a hydraulic cylinder 61 and a ring frame 62, a piston rod of the hydraulic cylinder 61 is disposed downward and abuts on an upper end surface of the lower support shoe 40; the ring frame 62 is arranged between the upper supporting tile 50 and the lower supporting tile 40, the rising flange nipple 20 upwards penetrates the ring frame 62, the upper end face of the ring frame 62 is abutted to the lower end face of the upper supporting tile 50, in the embodiment, the upper end face of the lower supporting tile 40 is provided with the positioning groove 41, the piston rod of the hydraulic cylinder 61 extends into the positioning groove 41, and the end portion of the piston rod of the hydraulic cylinder 61 is abutted to the bottom of the positioning groove 41. The ring frame 62 is fixedly connected with the cylinder bodies of the hydraulic cylinders 61, in the embodiment, the number of the hydraulic cylinders 61 is three, and the hydraulic cylinders 61 are uniformly distributed along the circumferential direction of the ring frame 62.

As shown in FIG. 1, the oilfield wellhead support device further comprises three positioning screw rods 70, the three positioning screw rods 70 are uniformly arranged along the circumferential direction of the ring frame 62, and the rotary table 30 is connected with the ring frame 62 through the positioning screw rods 70.

The following is a brief description of the working principle of the present invention:

the blowout prevention operation equipment is arranged on an upper flange 21 of the lifting flange nipple 20, a hydraulic cylinder 61 is started, under the action of oil pressure, a piston rod of the hydraulic cylinder 61 extends downwards and abuts against the bottom of a groove of the positioning groove 41 to obtain a certain supporting force, and the supporting force of the device is accurately adjusted by adjusting the pressure of the hydraulic cylinder 61. After the adjustment is completed, the position is fixed by adjusting the positioning screw 70. In the process of lifting and lowering the pipe string under pressure in blowout prevention operation, axial force generated by the pipe string and blowout prevention operation equipment acts on the rotary table 30, and damage to the riser is prevented.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Finally, it is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention, and these changes and modifications are to be considered as the protection scope of the invention.

Claims

1. An oilfield wellhead support device, comprising:

the turntable (30) is supported by the platform support (80), and a through hole is formed in the center of the turntable (30);

the square slips (31) are arranged in the through hole, and the square slips (31) are positioned at the lower part of the through hole;

a lower support tile (40), wherein the lower support tile (40) is arranged on the turntable (30), the lower end of the lower support tile (40) is provided with a flange (42), and the flange (42) is embedded into the upper part of the through hole;

the upper supporting tile (50) is arranged above the lower supporting tile (40), the lower end of the lifting flange nipple (20) is connected with a wellhead four-way joint (10), the lifting flange nipple (20) upwards penetrates through the square slip (31), the lower supporting tile (40) and the upper supporting tile (50), the upper end of the lifting flange nipple (20) is fixedly connected with an upper flange (21), and the upper supporting tile (50) is abutted to the lower end face of the upper flange (21);

-lifting means (60), said lifting means (60) being in abutment between said upper and lower support tiles (50, 40).

2. The oilfield wellhead support device of claim 1, wherein: the lifting device (60) comprises:

a hydraulic cylinder (61), wherein a piston rod of the hydraulic cylinder (61) is arranged downwards and abuts against the upper end surface of the lower support tile (40);

the ring frame (62), the ring frame (62) set up in go up support tile (50) with between lower support tile (40), rising flange nipple joint (20) upwards pass ring frame (62), the up end of ring frame (62) with the lower terminal surface butt of going up support tile (50), ring frame (62) with the cylinder body fixed connection of pneumatic cylinder (61).

3. The oilfield wellhead support device of claim 2, wherein: the oilfield wellhead supporting device further comprises a plurality of positioning screw rods (70), the positioning screw rods (70) are arranged along the circumferential direction of the ring frame (62), and the rotary disc (30) is connected with the ring frame (62) through the positioning screw rods (70).

4. The oilfield wellhead support device of claim 2, wherein: the number of the hydraulic cylinders (61) is multiple, and the hydraulic cylinders (61) are arranged along the circumferential direction of the ring frame (62).

5. The oilfield wellhead support device of claim 2, wherein: the upper end surface of the lower supporting tile (40) is provided with a positioning groove (41), a piston rod of the hydraulic cylinder (61) extends into the positioning groove (41), and the end part of the piston rod of the hydraulic cylinder (61) abuts against the bottom of the positioning groove (41).