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.
出处
《特种油气藏》
CAS
CSCD
北大核心
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)
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
diagenetic facies
reservoir assessment
low permeability sandstone reservoir
Ordos Basin
the Chang 81 reservoir in Huanjiang area
