基于灰色中心点三角聚类的相对优质储层过程性立体评价  

Process Property-Tridimensional Evaluation of Relative High-Quality Reservoir Based on Grey Center-Point Triangular Cluster

作　　者：黄进腊[1,2] 张哨楠[1] 刘成川[2] 曾焱[2] 

机构地区：[1]西南石油大学博士后科研流动站,四川成都610500 [2]中石化西南油气分公司博士后科研工作站,四川成都610041

出　　处：《延安大学学报（自然科学版）》2014年第2期36-40,共5页Journal of Yan'an University：Natural Science Edition

基　　金："十一五"国家科技重大专项(2011ZX05002-004)

摘　　要：元坝气田须二段储层为特低孔特低渗致密砂岩储层,但存在相对优质储层。为寻找"甜点",应用灰色中心点三角聚类方法,以元坝地区须二段致密砂岩为例,考虑油气生成的烃源特征、聚集成藏的古构造特征2个重要过程,同时结合对砂体参数、沉积微相及基本物性的立体认识开展"过程性立体评价",将储层分为优质、良好和差3类。结合开发实践,三类储层有效厚度数据总体表现为依次降低,与储层划分结论吻合性好,为同类储层的综合评价提供了新的研究思路方法,具有一定的借鉴意义。The 2nd member of Xujiahe formation is low porosity and low permeable reservoir in Yuanba gas field, Nevertheless,it has relative high - quality reservoir. The 2nd member of Xujiahe formation as a case study was evaluation ＂process property- tridimensional＂ for seeking＂ sweet spots＂based on grey clustering method as centerpoint triangular. The reservoir was divided into excellent, good and poor in 3 stypes due to 2 aspects：the 2 important processes include source characteristics of oil - gas generation and paleostructure of aggregation, and more associate with the tridimensional understanding of the characteristics of sand bodies, sedimentary facies and basic properties. With the development of practice, effective thickness data of three types of reservoir were decreased, and the reservoir classification results were almost in agreement. Therefore, the gray center- point triangular clustering method, having comprehensive discriminant ability better, provided a new idea for process property - tridimensional

关 键 词：优质储层 灰色聚类 储层评价 元坝 

分 类 号：P618.13[天文地球—矿床学]