半潜式钻井平台锚系留力分析

半潜式钻井平台是一种常用的平台结构形式,主要依靠锚泊系统将船定位在海面进行钻井作业。本文详细论述了锚的分类、半潜式钻井平台锚系留力的分析方法,并通过实例分析进行了验证,为半潜式钻井平台海上作业的安全稳定提供分析依据,同时对锚系留力的分析方法应用提出了建议。     

In-place structural strength and fatigue analysis for floating platform topsides

This paper presents some insights on the state-of-the-art practice that has been utilized recently in the inplace structural strength and fatigue analysis for topsides on deepwater floating platforms such as tension leg plat-form (TLP) and semi-submersibles. Emphases are put on analysis software,geometric and mass modeling,hydro-dynamic loading and its mapping,and analysis procedures. In addition,for the in-place analysis using structure analysis computer system (SACS),the procedure of Visual Basic for Application (VBA) is developed to map AQWA-LINE hydrodynamic loading to the SACS integrated hull/topsides model;for the in-place analysis using structure engineering system analysis model (SESAM),many computer aided applications are made to aid the post-processing. These applications have been used in structural analyses for a few TLP and semi-submersible plat-form topsides,and are briefly introduced in this paper.     

海上钻井方式的演变与不同类型移动式钻井平台的特点

目前在海洋油气资源开发中所使用的移动式钻井平台主要包括:坐底式平台、自升式平台、半潜式平台和钻井船四种类型,不同类型的钻井平台在它们进化过程中表现出了一种传承和演变的关系。对不同类型的移动式钻井平台的演变过程与特点进行了综述。