成岩相在低渗透砂岩储层评价中的应用  

Application of diagenetic facies in assessment of low permeability sandstone reservoir

作　　者：李丙喜[1] 王秀娟[2] 马俊胜[2] 郭冰[2] 叶博[2] 

机构地区：[1]中国矿业大学,北京100083 [2]中油长庆油田分公司,陕西西安710021

出　　处：《特种油气藏》2013年第6期30-34,142,共5页Special Oil & Gas Reservoirs

基　　金：国家自然科学基金"基于沉积模拟的湖相滩坝砂体沉积动力学探索"(41102089)

摘　　要：从成岩作用形成的效应出发,分析主要成岩矿物及孔隙类型对物性的影响。根据其对物性的贡献划分了铁方解石胶结相、水云母高岭石胶结相、绿泥石薄膜胶结相和长石溶蚀相4种成岩相。利用该方法对环江地区长81油藏进行了研究,可以很好地预测有利储层发育区域,指示有利成藏区域,对预测低渗透砂岩储层分布及指导油田生产有重要意义。The influences of main diagenetic minerals and pore types on physical properties are analyzed based on diagenesis effect. Four diagenetic facies are divided according to contribution to physical property in the Chang 81 reservoir of Huanjiang area,which are ferrocalcite cementation facies,hydromica / kaolinite cementation facies,chlorite film cementation facies and feldspar dissolution facies. Thereby favorable reservoirs are predicted. This research is of important significance to forecasting the distribution of low permeability sandstone reservoirs and guiding oilfield production.

关 键 词：成岩相 储层评价 低渗透砂岩油藏 鄂尔多斯盆地 环江地区长81油藏 

分 类 号：TE122.2[石油与天然气工程—油气勘探]