U-shaped balance weight structure for deep water dynamic pipe cable laying

Abstract

The invention discloses a U-shaped balance weight structure for deep water dynamic pipe cable laying. The U-shaped balance weight structure comprises a balance weight body and a lifting lug assembly arranged on the balance weight body. A through groove penetrating through a first surface and a second surface opposite to the first surface is formed in the balance weight body, the through groove further penetrates through a third surface of the adjacent balance weight body, and a U-shaped groove used for enabling a dynamic flexible pipe cable to be matched in is formed. The U-shaped balance weight structure for deep water dynamic pipe cable laying is simple in structure, the dynamic flexible pipe cable can be prevented from being damaged by the balance weight structure while balance weight is provided for the dynamic flexible pipe cable, the problem that the dynamic flexible pipe cable interferes with a workboat in the vertical laying process is solved, and connection of the dynamic flexible pipe cable to an anchoring foundation is assisted.

Description

technical field [0001] The invention relates to the technical field of marine engineering, in particular to a U-shaped counterweight structure used for laying dynamic pipe cables in deep water. Background technique [0002] In the development of deep-water offshore oil, dynamic flexible risers are widely used to tie back subsea oil and gas pipelines to FPSO tankers. Wave configuration is one of the commonly used configurations of dynamic flexible risers. During the vertical laying process of the wave configuration dynamic flexible riser float section, the riser is easy to interfere with the bottom of the ship or the ship's moon pool because the floater floats the riser, and the connection of the riser to the anchorage foundation near the seabed will also become difficult. difficulty. [0003] For the laying of the above-mentioned standpipe, the traditional method is to hang the counterweight on the standpipe, but the suspension of the counterweight brings the collision pro...

AI Technical Summary

Problems solved by technology

During the vertical laying process of the wave configuration dynamic flexible riser float section, the riser is easy to interfere with the bottom of the ship or the ship's moon pool because the floater floats the riser, and the connection of the riser to the anchorage foundation near the seabed will also become difficult. difficulty

[0003] For the laying of the above-mentioned standpipe, the traditional method is to hang the counterweight on the standpipe, but the suspension of the counterweight brings the collision problem with the standpipe, which is also a problem that needs to be solved urgently

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