标题：Using Geophysical Data (Gamma Ray) and Micro-facies to Identify of Lithology and Sedimentary Environment of Gadvan and Dariyan Formations in the Marun Oil Field (Dezful Embayment)
出版社：geodynamics Research International Bulletin Online
摘要：In this research, the Gadvan and Dariyan formations in the Marun Oil field of the Dezful embayment were studied. In well numbers 291,308 of Marun Oil field, Gadvan and Dariyan formations mainly are include limestone and shale. The lower and upper boundaries of the Gadvan in both wells are respectively Fahlian and Dariyan formations and also the lower and upper boundaries of the Dariyan Formation in both wells are Gadvan and Kazhdomi formations respectively. In this study, we used data from two exploratory and descriptively well and was draw stratigraphic columns based on electrical diagrams and study of thin sections studies. On the bases thin sections, identification of texture and micro-paleontology studies, 6 micro-facies were identified for each of the mentioned wells (3 micro-facies for Dariyan Formation and 3 micro-facies Gadvan Formation) which are belonging to facies belt of mid ramp and outer ramp. In the middle of Dariyan Formation present inter-bedded of shale that is also associated with increased of Gamma Ray, this shale belonging to Kazhdumi Formation and divided Dariyan Formation to lower and upper parts
