水下生产设施安装技术研究分析

Technology Research and Analysis of Underwater Production Facilities Installation

主要对海洋油气田开发中水下安装工程所需要的安装船类型、水下生产设施的安装定位和安装方法的选择进行系统研究,包括下水、定位、连接等作业。在上述研究的基础上参考DNV规范,分析安装船上起重机吊点各特征响应,并详细论述水下生产设施在安装过程中所受到的各种水动力荷载的计算公式,便于进行模型的力学分析。旨在通过对水下生产设施安装进行逐步分析,为设计及工程人员在对船舶类型要求、水下生产设施安装方法、安装仿真模拟等方面提供一定的理论和技术指导。

This paper aims at doing the systematic research on the type choice of required installation vessels, positioning and installation methods of underwater production facilities. The research includes lowering underwater production facilities into water, positioning and connection, etc. Based on the above research, the characteristic responses of crane lifting point motion are well studied according to DNV rules. Then, the calculation equations for the different kinds of hydrodynamic forces acting on underwater production facilities in installation process are proposed, which is convenient for the mechanical analysis of model. The analytical research on underwater production facilities installation at sequent phases can give some theoretical foundation and technical guidances to the designers and engineers with respect to vessel type requirements, installation method and simulation of underwater production facilities.