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An Analytical Solution by HAM for Nonlinear Simulation of Deepwater SCR Installation

机译:深水SCR安装非线性模拟火腿分析解决方案

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摘要

Steel catenary riser (SCR) is a cost-effective riser system that is widely used in deepwater offshore oilfields development. During SCR J-lay installation, the movement of pull-head must be carefully controlled to ensure riser safety. Since the SCR installation path calculation through numerical simulation software is usually time-consuming, this paper has established a mechanical model for SCR installation by making use of homotopy analysis method (HAM) to simplify its analytical solution, and dimensional analysis was considered in making initial guess solution. Based on this analytical solution, a program within the framework of MATLAB was developed to predict the two-dimensional riser behavior during installation, and a sensitivity analysis for different values of the control variables was carried out. Engineers may efficiently optimize the installation path by the application of this technique.
机译:钢结线提升管(SCR)是一种经济高效的提升系统,广泛应用于深水海上油田开发。在SCR J铺设期间,必须仔细控制拉头的运动以确保提升管安全。由于通过数值模拟软件进行了SCR安装路径计算通常是耗时的,因此本文通过利用使用同型分析方法(HAM)来简化其分析解决方案,建立了SCR安装的机械模型,并考虑了初始分析猜测解决方案。基于该分析解决方案,开发了MATLAB框架内的程序以预测安装期间的二维提升性行为,并进行对控制变量的不同值的灵敏度分析。工程师可以通过应用这种技术有效地优化安装路径。

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