The drill fluid in the drill stem increases the inertia of lateral vibration.
钻柱内的钻井液增加了钻柱横向振动的惯性质量.
互联网摘选
The longer the single drill pipe , the lesser the critical compressive force of drill stem.
钻杆的单根长度越长, 钻柱所能承受的临界载荷越小.
互联网摘选
计算结果表明:随钻柱与井眼间偏心度增大,波动压力减小.全偏心情况下的波动压力大约只有同心情况下的一半.
互联网摘选
Application of laser rigidification technique in strengthening drill stem joint
激光硬化技术在强化钻杆接头中的应用
互联网摘选
