结合变尺度分析方法和常规测井资料识别裂缝的发育

Research on fracture identification based on the variable scale fractal technique and conventional logging data

用测井资料定性识别裂缝的最有效的方法是应用声、电成像测井资料,但由于价格昂贵,只能在极少数井中应用,对于大范围的区域性评价有一定的局限性。文章综合声波时差等常规测井资料和一种R/S分析方法来综合识别裂缝的发育,并预测四川盆地的MB1井,得出的结论与成像测井资料基本一致。实践证明,这种分析方法为无成像测井资料油井裂缝识别提供了一种新的直观有效分析方法。

Application of acoustic or electric imaging logging data is the most effective method to identify fracture,but the price is high,and the technique can be used in a few wells,Besides,it is limited to a wide range of regional evaluation.A new technique is used to predict the fracture by using the acoustic travel time(AC) data,other test data and variable scale fractal techniques.This technique has predicted fracture of MB1 well block in Sichuan basin oilfield.Therefore,it is proved that the research of this paper provides a new method to identify fractures more intuitively and effectively for the oil fields which lack imaging well logging data.