Floating liquefied natural gas production, storage and unloading device adaptive to adverse sea conditions

Abstract

The invention relates to a floating liquefied natural gas (FLNG) production, storage and unloading device adaptive to adverse sea conditions, comprising a boat body, FLNG upper equipment arranged on a boat body deck, a cargo hold arranged in the boat body, an inner turret single-point cabin arranged at the inner head part of the boat body, an inner turret single-point system arranged in the single-point cabin, and a propelling system arranged at the tail part of the boat body, wherein the FLNG upper equipment and the cargo hold are used for realizing basic functions of production, storage and unloading of the production, storage and unloading device; the inner turret single-point system has a single-point positioning function and can perform single-point disengagement and tie-back under adverse sea conditions; the propelling system comprises multiple pieces of full circle swinging propelling equipment and is used for providing self-propulsion power of the production, storage and unloading device, and can adjust an included angle between the boat body and a wave direction or wind direction during transmission operation. According to the floating liquefied natural gas production, storage and unloading device, quick disengagement and tie-back can be realized, under the adverse sea conditions, such as typhoon, self-propulsion by the propelling system of the device can be performed to get away from a sea area where the typhoon passes, and safety of all systems of the device and workers is effectively protected.

Description

technical field [0001] The invention relates to the field of offshore natural gas production, storage and unloading devices, in particular to a floating liquefied natural gas production, storage and unloading device adapted to harsh sea conditions. Background technique [0002] Floating liquefied natural gas production, storage and offloading unit (abbreviated as FLNG, also known as LNG FPSO) is a new type of floating device that integrates pretreatment, liquefaction, storage and export of offshore natural gas. As an emerging offshore natural gas field floating production device, it has been paid attention to and developed and researched by many energy agencies and oil and gas companies. The development of deep-sea natural gas fields adopts FLNG technology, which not only does not occupy land space, is far away from people's residences, is safe and environmentally friendly, and has high economic efficiency. Its LNG products can be transported to on-road terminals or offshor...

AI Technical Summary

Problems solved by technology

[0007] This patent has a relatively good production storage and unloading system, but in the face of severe sea conditions, it is difficult to ensure the safe operation of the heating system for the isolation space between LNG cargo tanks and the normal processing of BOG after personnel evacuate

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