Method for improving connection reliability of ultra-deepwater drilling ship and high-pressure mud pipe

A technology for mud pipes and drilling ships, which is applied in the direction of pipes/pipe joints/fittings, pipe supports, mechanical equipment, etc., which can solve the problems of easy damage of connecting parts, and achieve the effect of solving easy damage, improving efficiency, and avoiding marine pollution

Active Publication Date: 2018-12-18
NANTONG YONGDA PIPE IND
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] Aiming at the technical problems existing in the background technology, the present invention uses special fasteners for fixing, and cooperates with the 3PRS parallel mechanism to adjust the movable part of the mud pipe to reduce the devi

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  • Method for improving connection reliability of ultra-deepwater drilling ship and high-pressure mud pipe
  • Method for improving connection reliability of ultra-deepwater drilling ship and high-pressure mud pipe
  • Method for improving connection reliability of ultra-deepwater drilling ship and high-pressure mud pipe

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Embodiment Construction

[0028] In order to make it easy to understand the technical methods, creative features, achieved goals and effects of the present invention, the present invention will be further described below with reference to the specific embodiments.

[0029] like figure 1 As shown, a method for improving the connection reliability of high-pressure mud pipes of an ultra-deepwater drilling vessel according to the present invention, the method includes the following steps:

[0030] S1, the part connecting the mud pipe and the drilling ship is connected by special fasteners;

[0031] S2, on the basis of S1, a 3PRS parallel mechanism is installed at the bottom of the drillship, the base of the 3PRS parallel mechanism is fixedly connected to the hull, and the movable end of the 3PRS parallel mechanism is connected to the mud pipe. The 3PRS parallel mechanism is used to reduce the size of the mud pipe. The position deviation between the fixed part and the movable part of the drilling ship, so ...

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Abstract

The invention relates to the technical field of drilling ships, in particular to a method for improving the connection reliability of an ultra-deepwater drilling ship and a high-pressure mud pipe. Themethod comprises the following steps that S1, connection portions of the mud pipe and the drilling ship are connected through a special fastener; and S2, on the basis of S1, the bottom of the drilling ship is provided with a 3PRS parallel connection mechanism, a base of the 3PRS parallel connection mechanism is fixedly connected with a ship body, the moving end portion of the 3PRS parallel connection mechanism is connected with the mud pipe, and the 3PRS parallel connection mechanism is used for reducing the positional deviation between fixed portions and moving portions of the mud pipe and the drilling ship. According to the method for improving the connection reliability of the ultra-deepwater drilling ship and the high-pressure mud pipe, fixation is performed by adopting the special fastener, meanwhile, the moving portion of the mud pipe is adjusted in coordination with the 3PRS parallel connection mechanism to reduce the deviation between the fixed portion and the moving portion of the mud pipe, by means of the method, the problem that the mud pipe or a connection part is prone to being damaged is well solved, the oil extraction efficiency is improved, and meanwhile, marine pollution caused by oil leakage is avoided.

Description

technical field [0001] The invention relates to the technical field of drilling ships, in particular to a method for improving the connection reliability of high-pressure mud pipes of ultra-deep water drilling ships. Background technique [0002] Drillships are pontoon-type drilling platforms, which are usually equipped with drilling equipment on motor ships or barges. Platforms are positioned by mooring or dynamic positioning systems. The hull of the pontoon-type drilling rig floats on the sea surface and is easily affected by waves. The displacement of the drilling ship ranges from several thousand tons to tens of thousands of tons. It has the ship shape and self-propulsion ability of ordinary ships, and it can float on the sea for oil drilling. [0003] When the high-pressure mud pipe is installed on the drilling rig to extract oil, the oil moves rapidly inside the mud pipe, causing the mud pipe to shake up and down on the drilling rig, causing the high-pressure mud pip...

Claims

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Application Information

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IPC IPC(8): F16L3/10F16F15/04
CPCF16F15/04F16L3/10
Inventor 韦伟
Owner NANTONG YONGDA PIPE IND
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