rock-bit interaction

By using strict mechanical analysis and mathematical treatment, three rock-bit interaction models reported in literature are analyzed.

本文通过力学分析与数学推导，对已有的三种钻进模型进行了分析推理。

It still is a difficult subject for most drilling engineers to predict and control well path by applying the mechanical analysis of bottom hole assembly and the rock-bit interaction model.

利用下部钻具力学分析和钻头与地层相互作用模型来预测和控制井眼轨道对于大多数钻井作业来说仍是一个难题。

Completing control method of well path due to the rock characters and the interaction between bit and formation.

根据地层岩石特性及钻头与地层的相互作用关系，完成井眼轨迹控制方法。