Tension type mooring system and mounting method thereof

A mooring system and tensioning technology, applied in the new FPSO tensioning mooring system and its installation field, can solve the problem of reduced pulling force, failure to meet platform restoring force, increased horizontal angle between catenary line and hull, etc. problems, to achieve the effect of large recovery stiffness, light weight, and increased payload

Pending Publication Date: 2019-03-19
DALIAN MARITIME UNIVERSITY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

At the same time, the horizontal angle between the catenary line and the hull increases, and the tension in the horizontal direction decreases, which cannot meet the requirements of the platform's restoring force, and many new problems will arise in design and construction.

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  • Tension type mooring system and mounting method thereof
  • Tension type mooring system and mounting method thereof
  • Tension type mooring system and mounting method thereof

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Embodiment Construction

[0029] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordina...

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Abstract

The invention provides a tension type mooring system and a mounting method thereof. The tension type mooring system comprises a floating production storage and off-loading device provided with at least one composite mooring rope; a suction anchor used as a mooring foundation is arranged at the bottom of the composite mooring rope; the composite mooring rope refers to a three-section composite mooring rope in a tension state and comprises an upper anchor chain, a middle polyester rope and a bottom anchor chain, the upper anchor chain, the middle polyester rope and the bottom chain are connectedfrom top to bottom sequentially, and a first float ball is arranged at the joint between the middle polyester rope and the bottom anchor chain. According to the tension type mooring system and the mounting method thereof, tension type multi-point mooring of the polyester ropes is utilized, the polyester rope resilience stiffness is high, high resilience force is provided for the floating production storage and off-loading device, and horizontal offset is reduced effectively; besides, as shorter mooring ropes are needed, price of the polyester ropes of the same break strength is lower, cost issaved, and economical efficiency is higher.

Description

technical field [0001] The present invention relates to an FPSO mooring system, in particular to a novel FPSO tensioned mooring system and an installation method thereof. Background technique [0002] With the increasing human demand for energy, offshore oil resources will become the main battlefield for the development of oil and gas resources. At present, the exploitation of offshore oil and gas resources has developed into the deep sea, and the working water depth of many offshore floating structures reaches 3000m. With the increase of mining depth, marine floating structures such as FPSO have higher and higher requirements on the rigidity and performance of their mooring systems. [0003] The function of the mooring system is to effectively limit the motion response of the floating platform, so that the platform can meet the engineering requirements in a suitable water area, such as the design requirements of the riser and the guarantee of working conditions. [0004] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B21/50
CPCB63B21/50
Inventor 李文华岳英杰周性坤林珊颖孙玉清王国有沈岩刘程隆利柯思诚
Owner DALIAN MARITIME UNIVERSITY
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