Small righting platform for marine riser

A small platform and riser technology, applied in the direction of drilling pipe, casing, drilling equipment, etc., can solve the problems of economic property loss, low structural bearing capacity, inconvenient installation and disassembly, etc.

Pending Publication Date: 2021-08-20
天津开发区安能石油技术发展服务有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After the drill pipe enters the formation through the riser, if the riser is affected by the ocean load and shifts its position, thereby contacting the drill pipe, causing extrusion and friction, both the drill pipe and the riser will be greatly damaged; if the riser is worn If it is broken, serious accidents will occur, resulting in economic property losses and even casualties.
[0003] In order to solve the above problems, the technicians designed the

Method used

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  • Small righting platform for marine riser
  • Small righting platform for marine riser
  • Small righting platform for marine riser

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Embodiment Construction

[0031] In order to more clearly understand the above purpose, features and advantages of the present invention, the following in conjunction with the attached figure 1 - attached Figure 8 The present invention is further described in detail with specific embodiments. It should be noted that, in the case of no conflict, the technical solutions of the present application and the features in the technical solutions can be combined with each other.

[0032] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. Technical Program Limitations.

[0033] The technical solutions of the present invention will be described below in conjunction with specific embodiments, and the described embodiments are only...

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Abstract

The invention provides a small righting platform for a marine riser. The small righting platform for the marine riser comprises a small platform body, the small platform body is fixed to a drilling platform tail plate through a bearing mechanism, and a righting device is fixedly arranged on the small platform body. According to the small righting platform for the marine riser, the small platform is collapsibly and fixedly arranged at the drilling platform tail plate, precious drilling platform space is completely prevented from being occupied, the working area of the small platform is offshore, stress borne by the righting device is effectively reduced, the righting device of a complex mechanical structure is prevented from being used, enough working space is provided by the small platform, position of the marine riser can be corrected in real time, and righting effect is better.

Description

technical field [0001] The invention belongs to the technical field of offshore drilling equipment, and in particular relates to a riser straightening small platform. Background technique [0002] In offshore drilling operations, the riser is a steel pipe connecting the subsea blowout preventer group and the floating offshore drilling device. It is mainly used to isolate seawater, guide drilling tools and casings, and form a channel for mud circulation. After the drill pipe enters the formation through the riser, if the riser is affected by the ocean load and shifts its position, thereby contacting the drill pipe, causing extrusion and friction, both the drill pipe and the riser will be greatly damaged; if the riser is worn If it is broken, serious accidents will occur, resulting in economic property losses and even casualties. [0003] In order to solve the above problems, the technicians designed the centralizing device, but most of the existing devices are concentrated o...

Claims

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Application Information

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IPC IPC(8): E21B17/10E21B15/02E21B19/00
CPCE21B15/02E21B17/1078E21B19/002
Inventor 王强
Owner 天津开发区安能石油技术发展服务有限公司
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