石油钻柱动态可靠度分析

摘要

针对石油钻柱频繁失效复杂影响因素问题,分析钻柱工作过程中应力与强度变化规律对钻柱失效的影响,建立了钻柱动态可靠度模型.%The influence of stress and strength variation on drill string failure during drilling is investigated in this paper with the respect of complicated issues of frequent failures to establish the dynamic reliability model of drill string.