A Theoretical Analysis Method for Sandwich Pipes Under Combined Internal-External Pressure and Thermal Load
Sandwich pipe is a submarine pipeline for transporting oil and gas resources which can be used in deep and ultra-deep water.As simultaneously sustaining the external pressure which is enormous especially in the deep and ultra-deep water and internal high temperature pressure (HTHP), the pipeline will produce enormous thermal stress when it is in production.The huge internal stresses will lead to buckling that will result in destructive damage to the pipeline both in partial failure and global instability.This paper presents an analytical formulation of the instability of a sandwich pipe system considered for high-temperature products in the oil and gas industry.We analyze the stresses and strains of the pipeline under combined internal-external pressure and thermal load in theory.Through the analysis,a theoretical formula analysis method is reduced which costs effectively and timely and more accurate in the result compared to the analysis from a nonlinear finite element (NLFE).
Sandwich pipe Thermal stress Deepwater Elasticity solution
Changsheng Xiang Qin Wang Menglan Duan
School of Petroleum Engineering,China University of Petroleum,Qingdao,China Offshore Oil/Gas Research Center,China University of Petroleum,Beijing,China
国际会议
SUT International Conterence on Subsea Technology and Deepwater Engineering(SUT 水下技术和深水工程国际会议)
深圳
英文
262-274
2012-09-25（万方平台首次上网日期，不代表论文的发表时间）