Occurrence and Identification of Different Types of Clay Minerals in Sedimentary Rocks
Clay minerals in sedimentary rock types,content and occurrence is the key to control the reservoir quality,the development decision-making parameters,its direct impact on the pore structure,porosity,permea-bility,water saturation and reservoir characteristics,also directly or indirectly affect the whole process of oil and gas development,makes the clay minerals important object in the study of oil exploration and development.Ac-cording to the above problems,combining with the current occurrence of different scholars classification scheme,systematic identification of clay mineral occurrences and types was carry out based on the polarization microscope and scanning electron microscope(sem).Considering the factors such as the cause,porosity,clay type and clay occurrence form,the occurrence and identification characteristics of different types of clay minerals in sedimenta-ry rocks were analyzed,standardized diagrams and identification marks for identifying different clay minerals were formed.A scientific,applicable and complete classification framework was formed for the classification of sedimentary clay minerals,which has practical value for quantitative and qualitative evaluation of clay.
clay mineralsclassification schemeidentification characteristicspolarization microscopescan-ning electron microscope
NETL
NSTL
万方数据
维普
