摘要
通过对金湖凹陷天长地区 30余口井的岩心进行铸体薄片、阴极发光、包裹体、扫描电镜、X 衍射粘土矿物等分析化验、统计 ,把研究区储层分为四大类七个亚类 ,认为本区低渗透储层的主要控制因素有沉积相带、碳酸盐含量、泥质含量、粒度中值等 ,对于东部的Ⅱc、Ⅲ类储层 。
On the basis of moldic pore section, cathodoluminescence, enlosure, scanning electron microscope, x-ray diffraction for clay mineral, assay and statistics of bore specimen of over 30 wells in Tian-Chang region of Jin-Hu sag, the reservoir in the region of interest is divided into 3 kinds of patterns and 7 subdivisions. It is thought that main controlled factors of low permeability reservoir are zone of deposition, carbonate content shale content, granul-arity median and so on. Therefore, fracturing and refracturing are main methods of obtaining commercial oil and gas for Ⅱc and Ⅲ patterns of reservoir in the East part of Jin-hu sag.
出处
《西南石油学院学报》
CSCD
2004年第5期21-23,共3页
Journal of Southwest Petroleum Institute
关键词
金湖凹陷
岩心分析
低渗透
压裂
Jin-hu sag
core analysis
low permeability reservoir
fracturing
