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通过对具有代表性的钻速模式的分析和对声波测井结果与岩石物理机械特性的相关关系的探讨,说明地层因素是影响钻速的基本因素。而声波测井结果是地层因素的具体反映,因此可以利用声波测井结果进行钻速预测。通过对试验结果的统计分析,得到用声波时差表示的钻速模式,若用于现场预测钻速时,还须根据钻井条件和井身结构对钻速模式进行修正。
Through the analysis of the representative mode of the drilling rate and the relationship between the acoustic logging results and the petrophysical mechanical properties, it shows that the formation factor is the basic factor that affects the drilling rate. The acoustic logging results are the specific reflection of the formation factors, so the sonic logging results can be used to predict the drilling speed. Through the statistical analysis of the test results, we can get the drilling speed mode indicated by the acoustic time difference. If the drilling speed is predicted in the field, the drilling speed mode must be corrected according to the drilling conditions and well structure.