Supporting pier system of FLNG upper module

Abstract

The invention discloses a supporting pier system of an FLNG upper module. The supporting pier system comprises a first supporting pier body, a second supporting pier body, a third supporting pier body and a fourth supporting pier body which are arranged on four angular points of the bottom of the upper module; the first supporting pier body and the fourth supporting pier body are arranged in a diagonal manner; the upper surface of one supporting pier body is in sliding contact with a supporting post of the upper module; the upper surface of the other supporting pier body is fixedly connected with the supporting post of the upper module; the second supporting pier body and the third supporting pier body are arranged in the diagonal manner; the upper surface of one supporting pier body is in sliding contact with the supporting post of the upper module, and is equipped with a baffle plate for limiting the upper module from moving in a boat breadth direction; and the upper surface of the other supporting pier body is in sliding contact with the supporting post of the upper mould, and is equipped with a baffle plate for limiting the upper module from moving in a boat length direction. According to the supporting pier system disclosed by the invention, a relative limiting layout mode is adopted, so that influences, on the module, of boat motion can be greatly reduced, and an integral operation efficiency coefficient and a safety coefficient of the FNLG are improved.

Description

technical field [0001] The invention relates to a FLNG module support pier, in particular to a support pier system for reducing the influence of FLNG sloshing on an upper module under severe sea conditions. Background technique [0002] With less and less available natural gas resources on land, exploration and development of offshore natural gas fields is an inevitable trend. A considerable part of the gas fields in the South China Sea are deep-sea gas fields and small marginal gas fields. For these marginal small gas fields and deep-sea natural gas resources, without the support of surrounding facilities, floating liquefied natural gas (FLNG) devices are used as a new type of offshore gas field development technology. The FLNG process system is complex, the total weight of the upper module can reach tens of thousands of tons (more than 30,000 tons), and there are many large pressure vessels in the pretreatment and liquefaction process, LNG is very sensitive to ship sloshi...

AI Technical Summary

Problems solved by technology

[0003] At present, the design of traditional buttress layout and type can only meet the support requirements of the FPSO hull for the upper module, and cannot release or partially release the constraints (the constraints along the longitudinal direction of the hull can be released, but the constraints along the width direction of the hull cannot be released), so it cannot effectively reduce the Hull motion effects

For FLNG, the FLNG upper module process is complex and has strict requirements on the range of motion of the hull, especially in harsh sea conditions such as the South China Sea, where FLNG sloshing causes process system failure to cause production shutdowns and other accidents

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