Novel inwards rotation tower single-point mooring device

Abstract

The invention discloses an inwards rotation tower single-point mooring device. The novel inwards rotation tower single-point mooring device comprises single-point buoys, a rotation tower structure, a vertical pipe deck, a ball collecting deck, a sliding ring combination and a mooring cable, wherein the single-point buoys are connected with the rotation tower structure; the mooring cable is arranged on the bottoms of the single-point buoys; the vertical pipe deck and the ball collecting deck are successively arranged on the top of the rotation tower structure; and the sliding ring combination is arranged on the ball collecting deck, and comprises a plurality of liquid sliding rings, an electric sliding ring or an optical fiber sliding ring. The requirement on a continuous working weather window is low during connection and disconnection; and the novel inwards rotation tower single-point mooring device particularly has obvious advantages under the condition that the requirement on two to three weeks of continuous weather windows needed by single-point return connection without a disconnection device is met difficultly in a winter monsoon climate.

Description

technical field [0001] The invention relates to an inner turret single point mooring device. Background technique [0002] With the continuous development of my country's offshore oil industry, the floating production storage and offloading unit (FPSO) has become the main facility for the development of offshore oil and gas fields, and plays a vital role in the exploitation of offshore oil and gas fields. According to different sea areas and sea conditions, FPSOs in the world currently mainly adopt the following three mooring methods: single-point mooring system, multi-point mooring system and dynamic positioning system. The single point mooring system has become the only choice for FPSO positioning in harsh sea areas due to its resistance to harsh and extreme environmental conditions and its weather vane effect. Generally, the FPSO in the Bohai Sea area adopts the single-point mooring system of the soft rigid arm of the tower, and the FPSO in the South China Sea adopts the...

AI Technical Summary

Problems solved by technology

As we all know, the South China Sea is a typhoon-prone area, and some problems have occurred in the internal turret single point mooring system under severe sea conditions, which has greatly affected the safe production of the oil field.

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