塔里木油田用鉆桿失效原因分析及預防措施

Investigation of Failure Causes for Drill Pipes Used in Tarim Oil Field and Relevant Preventative Actions

摘要: 塔里木油田鉆井條件苛刻,鉆桿受力情況復雜,容易發(fā)生鉆桿失效事故。分析了鉆桿失效的原因,介紹了相應的預防措施及其效果。認為現(xiàn)有鉆桿標準不能滿足塔里木油田的使用要求。多年實踐證明,塔里木油田通過制定鉆桿訂貨補充技術條件和嚴格現(xiàn)場探傷規(guī)范,有效地減少了鉆桿失效事故,延長了鉆桿使用壽命。

Abstract: The well-drilling operation conditions in Tarim Oil Field are so harsh that drill pipes are under complicated loads,and thus apt to fail to operation.Failure causes of the said drill pipes are investigated,and relevant preventative actions and their effectiveness are elaborated.It is regarded that the prevailing drill pipe standard can be no longer satisfactory to the application requirements for drill pipes as used in Tarim Oil Field.Years' operation practices of the oil field have proven that drill pipe failure rate has been significantly reduced,and drill pipe service life prolonged,due to the supplementary technical terms for ordering,and the stringent site NDT specification as established by Tarim Oil Field.