羅勇 齊曉亮 高巍 何寧 郝雙戶

摘 要：總體介紹了課題研究背景和研究思路，圍繞2013年工作任務(wù)，總結(jié)了取得的技術(shù)進(jìn)步，包括平臺(tái)的概念設(shè)計(jì)、整體運(yùn)動(dòng)分析、立管設(shè)計(jì)等 新型的干樹半潛浮式生產(chǎn)平臺(tái)其創(chuàng)新點(diǎn)是把平臺(tái)的立柱和甲板分開，從而使平臺(tái)的主要尺度能夠根據(jù)穩(wěn)性和運(yùn)動(dòng)的優(yōu)化要求進(jìn)行獨(dú)立選型。針對(duì)干樹生產(chǎn)平臺(tái)的技術(shù)要求，圍繞穩(wěn)性、控制垂蕩運(yùn)動(dòng)及橫、縱搖運(yùn)動(dòng)特性，對(duì)平臺(tái)主尺度進(jìn)行了優(yōu)選，使其具有良好的穩(wěn)性，同時(shí)又保證其垂向運(yùn)動(dòng)的固有頻率高于波浪能量頻率，并且使波浪力在波浪能量周期內(nèi)有相對(duì)的抵消。

關(guān)鍵詞：干樹半潛平臺(tái) 主尺度選型 穩(wěn)性 垂蕩控制 整體運(yùn)動(dòng)性能 系泊設(shè)計(jì)

Abstract： In this report， the research background and research ideas were introduced. The actual research work were carried out around the 2013 work plan：including the global sizing， global performance and the TTR riser design. The concept is based on an innovative solution of separating columns and deck of the semi-submersible platform， so that the key dimensions of the platform can be independently tuned to maintain good stability and desired natural frequencies of the platform in vertical motion. The platform configuration is carefully selected so that its natural frequencies in vertical motion are well above wave energy frequency and wave force cancelation effect is fully utilized in the period of large wave energy. In this way， satisfactory motions can be achieved. Stability of the new platform is analyzed and the results indicate that the stability meets the design code and safety requirements.

Key Words： Dry tree semi-submersible； Main dimension Selection； Stability； Heave Motion； Global Motion performance； Mooring

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