方钻杆旋塞阀故障树的建立和分析

结合油田井控手册编写工作和在油田现场的调研与工作的实际经验,结合旋塞阀的故障模式分析,建立了方钻杆旋塞阀的失效故障树.对旋塞阀失效故障树进行定性和定量分析,求出了故障树的最小割集和结构重要度,确定了旋塞阀的主要失效因素:材料的性能、密封问题、操作问题、检验和维护保养等,提出规范操作、优化旋塞阀结构、提高各零部件的配合精度、增强旋塞阀关键零部件的强度及耐腐蚀性、制定统一的检验维护标准和研制自平衡旋塞阀等改进措施,对预防和减少方钻杆旋塞阀使用中存在的问题,优化旋塞阀结构有重要的参考价值.

Establishment and analysis of failure tree for kelly cock

Based on the knowledge of well control handbook composed,the experience of Tarim Oil Filed oil-field working for half a year and the collection of information home and abroad,the Fault Tree of Kelly Cock was established.Qualitative analysis was performed,the minimal cut sets and importance de-gree were worked out,the failure facts were revealed,which were material capability,seal ability,operation problem,examination and maintenance,etc.Innovative approach were proposed,which were standardization operation,...