悬臂自升式钻井平台运动对隔水导管的响应  

Response of conductor induced by motions of jackup in cantilever mode

作　　者：王腾 管志川 

机构地区：[1]中国石油大学石油工程学院,山东青岛266580

出　　处：《中国石油大学学报（自然科学版）》2012年第4期84-87,共4页Journal of China University of Petroleum(Edition of Natural Science)

基　　金：国家自然科学基金项目(51179201);山东省自然科学基金项目(2009ZRA05002);中国石油大学自主创新科研计划项目(10CX04037A)

摘　　要：以间隙单元模拟隔水导管系统与导管架平台导向支撑间的相互作用,利用有限元法研究悬臂自升式钻井平台运动、导管架平台偏移等位移荷载作用下隔水导管系统的挠曲变形响应,并以隔水导管系统的强度与稳定性为设计准则,分析钻井平台与固定平台相对位移同相和反相的最大相对运动位移及其弯矩分布。计算结果表明,在给定的隔水导管强度和截面尺寸下,钻井平台的最大相对位移为75.0 cm。With gap elements modeling the gap contact condition between guided supports and the conductor systems, the deflections response of the conductor systems induced by the motions of jackup in cantilever mode and offsets of the jacket platforms under operating conditions was investigated by finite element method. The limiting relative excursions between the jacket out of phase and in phase with the jackup and the distributions of the moment were quantified by the strength and stability analysis of the conductor systems. The results show that for given conductor strength and dimensions, the maximum relative displacement between jackup and jacket platform with guide offsets is about 75.0 cm.

关 键 词：隔水导管 相对运动 悬臂自升式钻井平台 间隙单元 响应 挠曲变形 

分 类 号：TE21[石油与天然气工程—油气井工程]