rock-bit interaction model

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。

On the basis of the interaction model between formation and rock bit, a lateral vibration dynamic model of the rock bit was established under the interaction between drilling string and rocks.

在建立牙轮钻头与井底岩石互作用模型的基础之上，建立了基于钻柱和岩石互作用下的牙轮钻头横向振动动力学模型。

This paper attempts to use the parameter estimation method to backward calculate tooth-rock sample interaction mathematical model according to some bit bench test data.

本文尝试用参数估计的方法，依据一些钻头台架试验的数据，来反求牙齿-岩样互作用的数学模型。