Umbilical Cable Recovery Load Analysis
Umbilical Cable Recovery Load Analysis作者机构:School of Civil EngineeringTianjin University China Offshore Oil Engineering Co. Ltd.COOEC
出 版 物:《China Ocean Engineering》 (中国海洋工程(英文版))
年 卷 期:2013年第27卷第3期
页 面:351-358页
核心收录:
学科分类:081505[工学-港口、海岸及近海工程] 08[工学] 0815[工学-水利工程] 0824[工学-船舶与海洋工程] 0814[工学-土木工程] 082401[工学-船舶与海洋结构物设计制造]
基 金:financially supported by the National Natural Science Foundation of China (Grant No. 41272323) the Program for New Century Excellent Talents in University (Grant No. NCET-11-0370)
主 题:umbilical cable clay seabed catenary equation touch down point recovery load
摘 要:Umbilical cable is a kind of integrated subsea cable widely used in the exploration and exploitation of oil and gas field. The severe ocean environment makes great challenges to umbilical maintenance and repair work. Damaged umbilical is usually recovered for the regular operation of the offshore production system. Analysis on cables in essence is a two-point boundary problem. The tension load at the mudline must be known first, and then the recovery load and recovery angle on the vessel can be solved by use of catenary equation. The recovery analysis also involves umbilical- soil interaction and becomes more complicated. Calculation methods for recovery load of the exposed and buried umbilical are established and the relationship between the position of touch down point and the recovery load as well as the recovery angle and recovery load are analyzed. The analysis results provide a theoretical reference for offshore on-deck operation.