西南石油大学学报（自然科学版）2012，Vol.34Issue(3)：174-182,9.DOI:10.3863/j.issn.1674-5086.2012.03.027
致密碎屑岩中粘土矿物的形成机理与分布规律
Formation Mechanism and Distribution of Clay Minerals of Deeply Tight Siliciclastic Reservoirs
摘要
Abstract
With the development of petroleum exploration and exploitation, the proportion of deeply buried tight siliciclastic reservoirs is increasing significantly. The key to successful exploration in tight siliciclastic reservoirs is usually to find the growing law of the efficient reservoirs. However, there is a close relationship between formation mechanism and diagenetic clay minerals. Kaolinite, chlorite, mixed-layer illite-smectite and illite are common clay minerals in tight siliciclastic reservoirs. Formation mechanism and distribution of clay minerals can be studied by thin section, SEM and BSE, with consideration of sedimentary facies and sequence stratigraphy. The results show that formation of clay minerals are influenced by framework grains composition, climate, depositional environment, temperature, and so on. Clay minerals formed in early diagenesis can be controlled by sea level changes, however, which can influence late diagenetic clay minerals. Formation mechanism and distribution of clay minerals of deeply buried tight siliciclastic reservoirs can be predicted by integrating framework grain composition, depositional setting and sequence stratigraphic study.关键词
碎屑岩/致密储层/成岩作用/粘土矿物/高岭石/绿泥石Key words
siliciclastic rocks/ tight reservoirs/ diagenesis/ clay minerals/ kaolinite/ chlorite分类
能源科技引用本文复制引用
张哨楠,丁晓琪,万友利,熊迪,朱志良..致密碎屑岩中粘土矿物的形成机理与分布规律[J].西南石油大学学报（自然科学版）,2012,34(3):174-182,9.基金项目
国家自然科学基金(40972098) （40972098）
中国博士后科学基金(2012M511941). （2012M511941）
