Method for refitting oil tanker into FPSO

Abstract

The invention discloses a method for refitting an oil tanker into an FPSO. The method includes S1000, an establishing technology of a multipoint mooring chain controller related structure; S2000, an establishing technology of an oil transportation platform, S3000, an establishing technology of a flare tower, S4000, a lifting technology of a crane upper structure, and S5000, an establishing technology of a protecting pipe of a seawater lift pump, wherein a symmetry welding technology is adopted in pipe section folding, splicing and butt joint technologies in the above technologies, and the technologies can be constructed synchronously in parallel. By the adoption of the method for refitting the oil tanker into the FPSO, existing welding equipment, lifting equipment, accuracy measurement equipment and the like are fully used, human resources with related technical capacity are scientifically dispatched, the construction efficiency is high, the construction cost is low, the engineering quality of each subsystem meets the operation standard of an FPSO ship, the engineering quality of the FPSO ship is effectively guaranteed, and therefore the after-sales service time nodes of the FPSO ship are effectively prolonged.

Description

technical field [0001] The invention relates to the field of ships, in particular to a method for converting an oil tanker into an FPSO. Background technique [0002] Floating Production Storage and Offloading (hereinafter referred to as "FPSO"), as an "offshore oil factory", can process oil, gas, water and other mixed liquids from subsea oil wells into qualified crude oil or natural gas and store them in The cargo oil tank, when the reserves reach a certain level, is transported to the shuttle tanker through the external transmission system, which can conveniently provide power for the offshore tanker, has the advantages of strong wind and wave resistance, deep water depth range, and large oil storage / unloading capacity. Applied to the development of deep sea and marginal oil fields far from the coast. [0003] FPSO mainly includes mooring system, oil and gas treatment system, flare tower exhaust gas treatment system, crane hoisting system and seawater lifting treatment sy...

AI Technical Summary

Problems solved by technology

The conventional construction and hoisting process of the pipe section is built and hoisted in one piece, which inevitably collides and damages the external coating of the protection pipe of the seawater lift pump during the construction process, and even affects the roundness and straightness of the protection pipe. Remedial treatment will be done after the damage, the overall quality of the protection pipe of the seawater lift pump will be greatly reduced

After the protective pipe is damaged and deformed, the construction efficiency and anti-corrosion effect of the secondary coating will be seriously affected in the later secondary construction on the hull, which will increase the construction cost and the subsequent maintenance cost virtually.

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