摘要
珍珠冲组的孔隙空间以次生孔隙为主,储层类型为孔隙—裂缝型或裂缝—孔隙型。储层质量受沉积微相和成岩后生作用影响。各沉积微相中,三角洲前缘分流河道和辫状河道是有利的沉积相带。压实作用、胶结作用、溶蚀作用和破裂作用对本区砂岩储层发育起主要作用。
The porous structure of Zhenzhuchong Formation is formed mainly by the secondary porosity. The reservoir belongs to the type of porosity - fissure or fissure - porosity. And the quality of reservoir is affected by the sedimentary microfacies and secondary process of diagenesis. In the sedimentary microfacies, the advantageous ones are the branch river of delta front and the braided river microfacies. The main factors in the sandstone reservoir development of this area are compaction, cementation, corrosion and fragmentation.
出处
《云南地质》
2009年第3期338-344,共7页
Yunnan Geology
关键词
储层物性
孔隙特征
成岩后生作用
珍珠冲组
梓潼地区
Reservoir Property
Porosity Characteristics
Secondary Process of Diagenesis
Zhenzhuchong Formation
Zitong Area
