他们昨天仗量了钻杆和钻链的长度。
研究表明，水平井眼中钻柱所能承受的临界载荷和所使用钻杆的单根长度有密切关系。
The research indicated that the critical compressive force of drill stem in horizontal well is closely related with the length of single drill pipe in use.
钻杆的单根长度越长，钻柱所能承受的临界载荷越小。
The longer the single drill pipe, the lesser the critical compressive force of drill stem.
钻杆螺纹形式及长度可根据用户要求制造。
Thread form and the length of drill pipe can be manufactured in accordance with user requirements.
从方钻杆补心(KB)、钻台(DF)、底座或者地面标高(GL)到井中测量点或者井底的实际井筒长度。
The actual wellbore length from the kelly bushing (KB), derrick floor (DF), foundation or ground level (GL), to a point in the well or bottom of the well.
短钻杆是钻井过程中调整钻具间隔长度以达到某种技术目地的工具。
Short drill Pipe Short drill rod is a tool for adjusting drilling tool spaced length to reach a certain technical purpose in drilling engineering.
短钻杆是钻井过程中调整钻具间隔长度以达到某种技术目地的工具。
Short drill Pipe Short drill rod is a tool for adjusting drilling tool spaced length to reach a certain technical purpose in drilling engineering.
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