准噶尔盆地九区南火山岩裂缝识别方法研究

在裂缝性油气藏研究中,裂缝识别一直是测井解释的一个难点。本文在详细分析了准噶尔盆地九区南火山岩的双侧向和微球聚焦测井响应特征之后,建立了基于双侧向和微球聚焦测井的火山岩裂缝识别模型,并将此模型程序化,实现其裂缝的计算机自动识别。识别结果与成像测井对比表明,该方法能够较准确地对研究工区的裂缝进行识别,且精度较高。

STUDY ON THE IDENTIFYING METHOD OF VOLCANIC ROCK FRACTURES IN THE SOUTH OF NINE AREA OF JUNGGAR BASIN

In research of fractured reservoir,fracture identification is always a problem in well logging interpretation.After analysing response charac- teristics of dual laterolog and microspherical focused logging of the volcanic rock in the south of nine area of Zhunger Basin,a model for volcanic fracture identification is established. The model is programed and with it fractures can beidentified automatically through comput- ers.Comparison between the identification result and that of imaging logging shows that the method can identify fractures in the research area accurately.