利用声波测井进行钻速预测方法的研究

PENETRATION RATE PREDICTION WITH SONIC LOGGING DATA

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。

The paper discusses the relationship between sonic logging and petrophysical property,points out the basic factor affecting penetration rate-formation factor, through the typical penetration rate mode. Since sonic logging data reflect of formation factor,it could be used to predict penetration rate. By analyzing the results of the tests, a penetration rate mode is derivated. The mode could be modified upon field drilling conditions and casing programme.