drag and torque

Predicting and controlling the drag and torque in the process ofd rilling extended reach Wells is one of the key factors to ensure to be successful in the drilling.

大位移井钻井过程中摩阻扭矩的预测和控制是成功地钻成大位移井的关键因素之一。

The specific advantages, such as efficiency and the absence of drag torque, are maintained in this process, with costs remaining relatively Iow.

而干式离合器特有的优点，如高效率和无阻力矩将继续保持下去，同时成本仍可维持在相对低的水平。

Torque and drag in extended-reach well greatly impact on the efficiency of drilling.

大位移井钻井的摩阻和扭矩严重影响钻井时效。