Northwest Of The Lower Permian Reservoir Study

Under the guidance of the theories of stratigraphy, palaeobology , sedimentology, diagenesis and reservoir geology, taken field profile and drilling cores as research object, and combined with achievement of predecessors, the sedimentary facies, diagenesis essential characteristics of reservoir and controlling factors for reservoir of lower Permian series Formation in northwest sichuan have been comprehensively studied. Both classic and modern methods have been used in this research. The main contents includes: stratigraphic classification and correlation of under Permian Formation, the rock texture characteristics, type and forming conditions of rock; change rule of the sedimentary facies in vertical and horizontal direction and distribution in plane and the essential controlling factors through correlation of sedimentary facies transverse profile and regional geologic characteristics; establishing plane stereoscopic model of sedimentary of beach by studying diagenesis; basic characteristic and the primary control factors controlling the formation of reservoir are analyzed. Finally, the distributed rule and the advantageous reservoir growth sub-area of reservoir in lower Permian series are analyzed through the sedimentary facies and diagenesis.