用测井资料自动识别低孔低渗储集层岩性——以泌阳凹陷安棚古近系为例  

Using Well Log Data to Automatically Identify Lithology of Reservoir with Low Porosity and Low Permeability——An example from Anpeng Paleogene in Biyang sag

作　　者：申辉林[1] 方鹏[1] 刘美杰[1] 

机构地区：[1]中国石油大学地球资源与信息学院,山东青岛266555

出　　处：《新疆石油地质》2010年第6期644-646,共3页Xinjiang Petroleum Geology

摘　　要：较详细分析了低孔低渗储集层测井曲线响应特征,提出利用灰色关联挑选识别岩性关键参数的方法,通过层内差异法实现自动分层选取样本层,再利用主成分进行聚类分析,把样本层划分成若干测井相,最后通过Bayes逐步判别算法对未知地层进行测井相-岩性识别,并在实例应用中取得了较好的效果。The well logs response characteristic of low porosity and low permeability reservoir is analyzed in detail.The method for selection of key parameters of lithology identification by using grey correlation is proposed.Through the automatic stratification realized by intra-layer differentiation method to select sample layers and conduct cluster analysis using major components,divide the sample layers into several logging facies,and finally,the logging facies-lithology identification of uncertain layers is made by Bayes successive discriminate analysis.This method is effective in application.

关 键 词：泌阳凹陷 低渗透储集层 测井相 灰色关联 聚类分析 岩性识别 

分 类 号：P631.829.6[天文地球—地质矿产勘探]