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钻井行业存在工程事故风险,工程事故又包括有井下事故、设备事故、人身伤害事故等,井下事故则包括断钻具、卡钻、钻头事故、固井事故、电测事故等,本文主要讲述某井发生溢流复杂后,长时间关井处理溢流造成井下钻具压差卡钻,在压稳井后处理卡钻期间采用倒扣器打捞井下落鱼。经过该井实践分析,形成了较为完整的倒扣器使用方法、处理井下钻具事故经过及经验总结与建议。
Drilling industry there is a risk of engineering accidents, engineering accidents also include downhole accidents, equipment accidents, personal injury accidents, downhole accidents include broken drill, stuck drill, bit accident, cementing accident, electrical measurement accidents, this article describes a Well after the overflow occurred complex wells, long time shut-in treatment overflow overflow caused by underground pressure drill pipe stuck in the stability of the post-processing card stuck during the use of downhole salvage fish downhole. After practice analysis of the well, a more complete method of using the undercutter has been formed to deal with the accident of the downhole drilling tool and the experience summary and suggestions.