孔雀亭B2H井卡钻事故处理与认识  

Processing and Understanding of the Pipe-stuck Accidents in Kongqueting B2H Well

作　　者：王喜杰[1] 陈刚[1] WANG Xijie;CHEN Gang(Shanghai Branch Engineering Technology of CNOOC Energy Development Co. LTD. Shanghai 200335, China)

机构地区：[1]中海油能源发展股份有限公司工程技术上海分公司,上海200335

出　　处：《海洋石油》2017年第3期68-70,74,共4页Offshore Oil

摘　　要：孔雀亭B2H井在φ212.725 mm井眼钻井施工中因地层垮塌埋钻具造成了卡钻事故,在处理本次事故中,采用大吨位活动钻具、蹩扭下压、带压上提、机械震击等手段均未能解卡。现场结合钻具在井眼中状态、地层及套管承压能力,采用环空打压的方式,最终成功解卡。环空打压方式的使用,拓宽了卡钻事故处理方法,为后续同类型事故的处理积累了经验。Ground collapse caused the pipe-stuck accidents inφ212.725mm hole of KQT-B2H.In this accidents,limited active drill pipe,added torque,depressed,pulled drill pipe with pressure,hammer tool and so on,were used,but failed.Combined with the pipe,casing and ground,succed unfreezing through add pressure to annular.It widen the pipe-stuck treatment method and accumulated experience.

关 键 词：坍塌卡钻 环空打压 深部地层 地层承压能力 

分 类 号：TE28[石油与天然气工程—油气井工程]