Connection structure capable of disconnecting floating production storage and offloading (FPSO) mooring floater and boat body

Abstract

The invention discloses a connection structure capable of disconnecting a floating production storage and offloading (FPSO) mooring floater and a boat body, which comprises the boat body and the floater, wherein the floater comprises a cone part and a pedestal; the lower bottom face of the cone part is fixed on the pedestal; a locking device used for locking the floater is arranged on the boat body; a conical through hole capable of accommodating the cone part of the floater is formed on the boat body; the locking device is positioned in the conical through hole; the cone part of the floater is formed by a base body round table; the bottom of the base body round table is cut by a plurality of planes parallel to the axial line of the base body round table, so the lower bottom face of the cone part is of a regular polygon; and the bottom of the conical through hole is also of a regular polygon and forms irrotational cooperation with the bottom of the cone part. Due to the characteristic that the structure is round at the top and square at the bottom, primary positioning is easy to realize, relative rotation between the floater and the boat body is avoided, quick connection and disconnection are easy to realize, and the operation is simple.

Description

technical field [0001] The invention relates to the field of marine oil and gas equipment, in particular to a connection and release structure for an FPSO hull and a positioning buoy. Background technique [0002] FPSO (Floating production, storage, offloading unit) floating production storage and offloading ship has the functions of production, oil storage and oil offloading, and is one of the main modes of offshore oil development. At present, with the substantial increase in the consumption of oil and gas resources in my country, the country's demand for oil and gas resources is also increasing. Effective, economical and rapid development of my country's South China Sea resources is imminent. Due to the relatively hostile environment in the South China Sea, the traditional permanent mooring method can no longer adapt to the natural environment of the South China Sea. The new type of detachable mooring method is the development trend, from passive bearing to active prevent...

AI Technical Summary

Problems solved by technology

Due to the relatively hostile environment in the South China Sea, the traditional permanent mooring method can no longer adapt to the natural environment of the South China Sea. The new type of mooring method that can be released is the development trend, from passive bearing to active prevention

The traditional detachable FPSO adopts the form of turret, RTM (Riser Turrent Mooring) and BTM (Buoycant Turrent Mooring). The disadvantages of this turret are: the scale is relatively small, the system is relatively complicated, the manufacturing cost is high, and the price is extremely expensive. Moreover, the number and form of risers are limited

The technical solution disclosed in this patent application has made a useful exploration on the connection and release structure between the hull and the float. However, in the process of connecting the float to the hull, how to realize the positioning of the float and the hull and avoid Relative rotation, in order to facilitate the locking operation, still needs to be further improved

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