伊犁盆地南缘水西沟群粘土矿物特征研究及其意义

粘土矿物是砂岩中重要的填隙物,其在砂岩中的含量、产状以及矿物组成对砂岩的孔隙结构、渗透性能都有重要意义,并影响着以砂岩为储层的能源矿产的成矿。文章通过镜下观察和X射线衍射分析,研究了粘土矿物特征、形成机制及其与砂岩层渗透性的关系。

Study on the characteristics of clay minerals in Shuixigou group at the south edge of Yili basin and its significance

Clay minerals are the important matrix in sandstone, their content and occurrence and combination are quite important to the pore texture and permeability of sandstone, and can influence the metallization of energy minerals whose reservoir are always sandstone. Through microscope-observation and analysis of X-ray diffraction, the authors have analyzed the characteristics and the formation mechanism of the clay minerals and their relation to the permeability of sandstone layer.