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介绍了利用多测井参数求取岩石可钻性的理论和方法，并给出了预测岩石可钻性的数学模型。室内试验表明，该模型能进一步提高岩石可钻性的预测精度，能满足钻井工程的实际需要；可以很方便地建立某地区的岩石可钻性剖面并掌握其分布规律。
The theory and method for determining the drillability of rock using multiple logging parameters are introduced. The mathematical model for predicting the drillability of rock is presented. Laboratory tests show that the model can further improve the prediction accuracy of rock drillability, and can meet the actual needs of drilling engineering. It is easy to establish a section of rock drillability in a certain area and grasp its distribution law.