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。
On the system dynamics, the dynamics model for roller cone bit under the interaction of drilling string and rock was established.
从系统动力学的角度出发，建立了基于钻柱、岩石相互作用下的牙轮钻头动力学模型。
On the basis of many experiments, the mechanics model for the interaction of roller cone bit and rock was established.
在大量单元实验的基础上，建立了牙轮钻头与岩石相互作用力学模型。
The result here can be used quantitatively to analyze the affection of the formation on the well trajectory, and has significant importance for the further study of the bit-rock interaction relation.
结果可用来定量地分析地层因素对井眼轨迹的影响，对于深入研究钻头-地层相互作用关系具有重要意义。
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。
The dynamics of roller cone bit under the interaction of drilling string, bit and rock during the drilling process was investigated.
研究了钻井过程中钻柱、钻头、岩石相互作用下的牙轮钻头动力学特性。
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。
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。
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