1·The complications, the organizational stopwork and the troubles in drilling operation are the three important elements composing drilling non-productive times.
复杂情况、组织停工、钻井事故是构成钻井非生产时间的三个主要因素。
1·The complications, the organizational stopwork and the troubles in drilling operation are the three important elements composing drilling non-productive times.
复杂情况、组织停工、钻井事故是构成钻井非生产时间的三个主要因素。