1) Fracture Reason Analysis on Drill Collar
钻铤断裂原因分析
2) Fracture Reason Analysis of the Roller
轧辊断裂原因分析
3) collar break
断钻铤
1.
During the operation several downhole complications took place, such as collar break, cone break off, drill pipe sticking, lost circulation, caving and eccentrically worn drill pipe.
该井在施工中发生了断钻铤、掉牙轮、卡钻事故和井漏、井壁失稳、钻具偏磨等复杂情况。
补充资料：铤
见筳（梃、铤）。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条