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NP5-96井是南堡浅海油田一口预探井。二开钻进后在明化镇组地层发生两次断钻铤事故,综合录井对整个事故处理过程进行监测。本文分析事故发生原因,总结打捞成功经验,同时归纳事故发生时参数变化规律,以便能准确做出预报避免类似事故发生。
Well NP5-96 is a pre-exploration well in Nanpu shallow sea oilfield. After the second drilling, two broken drill collar accidents occurred in the formation of Minghuazhen Formation, and comprehensive logging was performed to monitor the entire accident treatment process. This article analyzes the causes of the accident, summarizes the successful experience of salvage, and at the same time summarizes the parameters of the accident change rules, so that we can accurately predict to avoid similar accidents.