MOPU building method

Abstract

The invention provides a building method of a MOPU which comprises section construction steps, main hull construction steps, launching into water steps and pile legs closure steps. Section construction steps: sub-merged container sections, deck box sections and pile leg sections are built respectively, wherein the pile leg sections comprise bottom pile leg sections, top pile leg sections and a plurality of middle pile leg sections. Main hull construction steps: the sub-merged container sections are closed together to form a sub-merged container and further fixed with the bottom pile leg sections, with the bottom pile leg sections as benchmarks, and the deck box sections are closed together to form a deck box, the sub-merged container and the deck box constitute the main hull. Launching into water steps: the main hull section, the top file leg sections and the middle pile leg sections are launched into water respectively. Pile legs closure steps: the middle pile leg sections and the top file leg sections are closed above the bottom pile leg sections. The MOPU building method has the advantages that the sub-merged container sections, the deck box sections and the pile leg sections are built respectively and simultaneously, the use of large hoisting equipment is avoided in the closure process, the closure risk is reduced effectively, the closure operability is improved, labor costs are reduced and further good economy is provided.

Description

technical field [0001] The invention relates to the field of marine engineering equipment construction, in particular to a method for constructing an MOPU. Background technique [0002] MOPU (Mobile Offshore Production Unit) is a mobile production unit. Mobile offshore production units play an important role in some marginal oil fields where there is no oil pipeline connection and FPSOs are not suitable for berthing. [0003] Such as figure 1 As shown, MOPU is a platform with very complex structure and function. It is usually equipped with truss-type legs composed of three or four cylindrical columns. A steel sinker is arranged at the bottom of the legs, and a deck box and related production units. When MOPU is working, the sinking box is lowered to the seabed, the deck box is climbed to the top of the legs and fixed, and the relevant production units on the deck box are used for corresponding operations. [0004] Among them, such MOPU platforms with large-scale truss-ty...

AI Technical Summary

Problems solved by technology

[0010] The object of the present invention is to provide a kind of MOPU construction method, solve the problem of long construction period and high construction cost of MOPU in the prior art

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