机械卡钻可能由井眼内的碎屑、井眼内几何形状异常、水泥、键槽或者岩屑在环空中的积聚等引起。
Mechanical sticking can be caused by junk in the hole, wellbore geometry anomalies, cement, keyseats or a buildup of cuttings in the annulus.
盐岩在应力作用下发生蠕变导致井眼闭合，常引起钻具卡钻事故。
Salt rock can make borehole close in the effect of creep, which often leads to stuck.
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