Blowout preventer trolley adapter

Abstract

The utility model discloses a blowout preventer trolley adapter which comprises a main box body, a grating platform, a central pipe sleeve and a connecting assembly used for being connected with a construction workpiece, the main box body is provided with an auxiliary well mouth and an installation hole for installing a lifting pump, the grating platform is detachably arranged on the installation hole in a covering mode, and the central pipe sleeve is arranged on the grating platform. The central pipe sleeve is embedded in the auxiliary wellhead, and the connecting assembly is embedded in the central pipe sleeve; according to the utility model, the layout of the existing wellhead operation equipment is not changed, the existing blowout preventer trolley and the track can be reasonably utilized, the manufacturing is simple, the use is reliable, and the requirements of adding an auxiliary wellhead and temporary suspension equipment thereof are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of blowout preventer trolleys, and in particular relates to a blowout preventer trolley adapter. Background Art

[0002] The blowout preventer trolley is an auxiliary equipment used for assembling and lowering the blowout preventer group in offshore drilling. The blowout preventer group trolley usually has an increased carrying capacity and can be moved at the wellhead and nearby. Due to the lack of space and interfaces for hoisting and storing tools at the existing wellhead, it has become very necessary and urgent to form an auxiliary wellhead near the wellhead to meet the complex requirements of drilling technology. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a blowout preventer trolley adapter, which can effectively solve the problem of insufficient space and interface for existing wellhead hoisting and storage tools in the prior art.

[0004] In order to solve the above technical problems, the technical solutions adopted by the utility model are as follows:

[0005] A blowout preventer trolley adapter comprises a main box body, a grid platform, a center pipe sleeve and a connecting assembly for connecting construction workpieces, wherein the main box body is provided with an auxiliary wellhead and a mounting hole for installing a lifting pump, the center pipe sleeve is embedded in the auxiliary wellhead, the grid platform is detachably covered on the mounting hole, the connecting assembly is embedded in the center pipe sleeve, the inner upper end of the auxiliary wellhead is provided with a first step portion, the outer upper end of the center pipe sleeve is provided with a second step portion, the second step portion is overlapped on the first step portion, the inner upper end of the center pipe sleeve is provided with a third step portion, the outer upper end of the connecting assembly is provided with a fourth step portion, the fourth step portion is overlapped on the third step portion.

[0006] As a preferred solution of the utility model, the connecting assembly includes a bushing, the fourth step portion is arranged on the outer side of the upper end of the bushing, the bushing is interference fit with the center pipe sleeve, and a connecting port is provided on the bushing, the upper part of the connecting port is arranged in a cylindrical shape, and the lower part of the connecting port is arranged in a truncated shape with the opening gradually increasing from top to bottom.

[0007] As a preferred solution of the utility model, the outer edge of the lower end of the bushing is provided with a chamfer.

[0008] As a preferred embodiment of the present invention, the connecting assembly includes a bushing, the fourth step portion is arranged on the outer side of the upper end of the bushing, the fifth step portion is arranged on the inner side of the upper end of the bushing, the sixth step portion is arranged on the outer side of the upper end of the bushing, the sixth step portion is overlapped on the fifth step portion, a connecting port is arranged on the bushing, the upper part of the connecting port is arranged in a truncated shape with an opening gradually decreasing from top to bottom, the middle part of the connecting port is arranged in a cylindrical shape, and the lower part of the connecting port is arranged in a truncated shape with an opening gradually increasing from top to bottom.

[0009] As a preferred solution of the utility model, the bushing includes a left bushing and a right bushing, and the left bushing and the right bushing are overlapped to form the connecting port.

[0010] As a preferred solution of the utility model, the left bushing and the right bushing are both provided with a plurality of through holes arranged along the circumference.

[0011] As a preferred solution of the utility model, the outer edge of the lower end of the bushing is provided with a chamfer.

[0012] The blowout preventer trolley adapter provided by the utility model has the following beneficial effects compared with the prior art:

[0013] When in use, the adapter is installed on the blowout preventer trolley, wherein the auxiliary wellhead on the adapter is opposite to the operating port of the blowout preventer trolley. Under different working conditions, the connecting assembly can be used to connect construction workpieces such as a return pipeline short section or casing. At the same time, since the grid platform is detachably covered on the mounting hole, the lifting pump can also be installed in the mounting groove after the grid platform is removed. It has a wide range of uses and can not only maintain the layout of the existing wellhead operating equipment, but also reasonably utilize the existing blowout preventer trolley and track. It is simple to manufacture and reliable to use, meeting the needs of adding auxiliary wellheads and their temporary suspension equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0015] Figure 1 It is a structural schematic diagram of a blowout preventer trolley adapter provided by an embodiment of the utility model;

[0016] Figure 2 This is a structural schematic diagram of a blowout preventer trolley adapter provided by an embodiment of the utility model after a lift pump is installed;

[0017] Figure 3 It is a structural schematic diagram of a blowout preventer trolley adapter provided in the first embodiment of the utility model;

[0018] Figure 4This is a structural schematic diagram of a blowout preventer trolley adapter provided by the first embodiment of the utility model in a use state;

[0019] Figure 5 This is a structural schematic diagram of a blowout preventer trolley adapter provided in the second embodiment of the utility model;

[0020] Figure 6 It is a structural schematic diagram of a blowout preventer trolley adapter provided in the second embodiment of the utility model in a use state.

[0021] Markings in the figure:

[0022] Main casing 100; auxiliary wellhead 101; mounting hole 102; first step 103; grid platform 200; center pipe sleeve 300; second step 301; third step 302; connection assembly 400; fourth step 401; bushing 402; connection port 403; bushing 404; fifth step 405; sixth step 406; left bushing 407; right bushing 408; through hole 409; return short section pipeline 500; casing 600; lifting pump 700. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 cannot be understood as a limitation on the present utility model. It should be understood that the terms "first", "second", etc. are used in the present utility model to describe various information, but such information should not be limited to these terms, which are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present utility model, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "first" information.

[0025] like Figure 1 to Figure 2As shown, a preferred embodiment of the utility model provides a blowout preventer trolley adapter, which includes a main box body 100, a grid platform 200, a center pipe sleeve 300 and a connecting assembly 400 for connecting construction workpieces, wherein the main box body 100 is provided with an auxiliary wellhead 101 and a mounting hole 102 for installing a lift pump 700, the grid platform 200 is detachably covered on the mounting hole 102, the center pipe sleeve is embedded in the auxiliary wellhead 101, the connecting assembly 400 is embedded in the center pipe sleeve, the inner upper end of the auxiliary wellhead 101 is provided with a first step portion 103, the outer upper end of the center pipe sleeve is provided with a second step portion 301, the second step portion 301 is overlapped on the first step portion 103, the inner upper end of the center pipe sleeve is provided with a third step portion 302, the outer upper end of the connecting assembly 400 is provided with a fourth step portion 401, the fourth step portion 401 is overlapped on the third step portion 302.

[0026] When in use, the adapter is installed on the blowout preventer trolley, wherein the auxiliary wellhead 101 on the adapter is opposite to the operating port of the blowout preventer trolley. Under different working conditions, the connecting assembly 400 can be used to connect construction workpieces such as a return pipeline short section or a casing 600. At the same time, since the grid platform 200 is detachably covered on the mounting hole 102, after the grid platform 200 is removed, the lifting pump 700 can also be installed in the mounting groove. It has a wide range of uses, and can not only maintain the layout of the existing wellhead operating equipment, but also reasonably utilize the existing blowout preventer trolley and track. It is simple to manufacture and reliable to use, and meets the needs of adding the auxiliary wellhead 101 and its temporary suspension equipment.

[0027] For example, Figure 3 to Figure 4 As shown, in the first embodiment, the connection assembly 400 includes a bushing 402, the fourth step 401 is arranged on the outer side of the upper end of the bushing 402, the bushing 402 is interference fit with the center pipe sleeve 300, and a connection port 403 is arranged on the bushing 402, the upper part of the connection port 403 is arranged in a cylindrical shape, and the lower part of the connection port 403 is arranged in a truncated shape with an opening gradually increasing from top to bottom. When used, the bushing 402 is used to connect with the return short-joint pipeline 500. Since the return short-joint pipeline 500 will do a pendulum motion when in use, the lower part of the connection port 403 is arranged in a truncated shape with an opening gradually increasing from top to bottom, so as to avoid motion interference with the short-joint pipeline and facilitate use.

[0028] Exemplarily, the outer edge of the lower end of the bushing 402 is chamfered, which can facilitate the bushing 402 to extend into the center sleeve and facilitate installation.

[0029] For example, Figures 5 and 6As shown, in the second embodiment, the connection assembly 400 includes a bushing 402 and a bushing 404, the fourth step portion 401 is arranged on the outer side of the upper end of the bushing 402, the inner side of the upper end of the bushing 402 is provided with a fifth step portion 405, the outer side of the upper end of the bushing 404 is provided with a sixth step portion 406, the sixth step portion 406 is overlapped on the fifth step portion 405, the bushing 404 is provided with a connection port 403, the connection port 404 is provided with a fifth step portion 405, and the fifth step portion 406 is overlapped on the fifth step portion 405. The upper part of the connection port 403 is arranged in a truncated shape with an opening gradually decreasing from top to bottom, the middle part of the connection port 403 is arranged in a cylindrical shape, and the lower part of the connection port 403 is arranged in a truncated shape with an opening gradually increasing from top to bottom. The bushing 404 includes a left bushing 407 and a right bushing 408, and the left bushing 407 and the right bushing 408 cover each other to form the connection port 403, and the left bushing 407 and the right bushing 408 are both provided with a plurality of through holes 409 arranged along the circumference.

[0030] During the specific installation, the left bushing 407 is installed first, and then the casing 600 is extended into the auxiliary wellhead 101, and finally the right bushing 408 is installed, which can facilitate the installation of the casing 600 and avoid installation difficulties caused by excessive friction. In addition, since there are many types of casing 600 and they are replaced frequently, when using it, it is only necessary to take out the left bushing 407 and the right bushing 408 and replace them with left bushings 407 and right bushings 408 of suitable sizes. In addition, when replacement is needed, other tools can be hooked on the through hole 409 to facilitate the pulling out of the left bushing 407 and the right bushing 408, and there is no need to repeatedly disassemble the core 402. A single person can also operate it, and replacement is convenient.

[0031] Exemplarily, the lower end of the bushing 402 is provided with a chamfer, which can facilitate the bushing 402 to extend into the center sleeve and facilitate installation.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A blowout preventer trolley adapter, characterized in that: It includes a main box body, a grille platform, a center pipe sleeve and a connecting component for connecting construction workpieces, the main box body is provided with an auxiliary wellhead and a mounting hole for installing a lifting pump, the grille platform is detachably covered on the mounting hole, the center pipe sleeve is embedded in the auxiliary wellhead, and the connecting component is embedded in the center pipe sleeve, the inner upper end of the auxiliary wellhead is provided with a first step portion, the outer upper end of the center pipe sleeve is provided with a second step portion, the second step portion is overlapped on the first step portion, the inner upper end of the center pipe sleeve is provided with a third step portion, the outer upper end of the connecting component is provided with a fourth step portion, and the fourth step portion is overlapped on the third step portion.

2. A blowout preventer trolley adapter according to claim 1, characterized in that: The connecting assembly comprises a bushing, the fourth step portion is arranged on the outer side of the upper end of the bushing, the bushing is interference fit with the central pipe sleeve, a connecting port is arranged on the bushing, the upper portion of the connecting port is arranged in a cylindrical shape, and the lower portion of the connecting port is arranged in a truncated shape with an opening gradually increasing from top to bottom.

3. A blowout preventer trolley adapter according to claim 2, characterized in that: The outer edge of the lower end of the bushing is chamfered.

4. A blowout preventer trolley adapter according to claim 1, characterized in that: The connecting assembly comprises a bushing and a bushing, wherein the fourth step portion is arranged on the outer side of the upper end of the bushing, the fifth step portion is arranged on the inner side of the upper end of the bushing, and the sixth step portion is arranged on the outer side of the upper end of the bushing, and the sixth step portion is overlapped on the fifth step portion. A connecting port is arranged on the bushing, and the upper part of the connecting port is arranged in a truncated shape with an opening gradually decreasing from top to bottom, the middle part of the connecting port is arranged in a cylindrical shape, and the lower part of the connecting port is arranged in a truncated shape with an opening gradually increasing from top to bottom.

5. A blowout preventer trolley adapter according to claim 4, characterized in that: The bushing includes a left bushing and a right bushing, and the left bushing and the right bushing are overlapped to form the connecting port.

6. A blowout preventer trolley adapter according to claim 5, characterized in that: The left bushing and the right bushing are both provided with a plurality of through holes arranged along the circumference.

7. A blowout preventer trolley adapter according to claim 4, characterized in that: The outer edge of the lower end of the bushing is chamfered.

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