作　　者： ; ; ; ; ;

机构地区： 长江大学地球物理与石油资源学院教育部油气资源与勘探技术重点实验室

出　　处： 《石油天然气学报》 2013年第7期78-81,3,共4页

摘　　要： 针对下刚果盆地某区块的复杂岩性,以测井资料为基础,通过特征提取和最优聚类划分出了17个测井相。结合该区的取心资料,通过岩心标定,赋予了这17个测井相一定的地质意义,建立了测井相-岩相知识库。以该知识库为基础,通过判别分析的方法,对未取心段的岩性进行了识别,绘制了目的层段的岩性柱状剖面图。实例应用结果表明,该方法具有较高的准确度和良好的地质效果。 The lithology was very complex in the Lower Congo Basin.To identify the type of rock , the features of logging data were extracted and they were divided into 17logging facies.In combination with coring data in the area , the 17log facies were assigned with their geological significance.A knowledge base was established for logging facies and lithofacies.And based on the knowledge base and method of identification , the lithology of uncoring section is recognized , a columnar sectional diagram is developed for the target zone.Application of examples shows that the method has high accuracy and good geological effect.

关 键 词： 测井相 最优聚类 判别分析 特征提取 岩性识别

领　　域： [天文地球] [天文地球]