Channel: LITHOFACIES PALAEOGEOGRAPHY AND SEDIMENTOLOGY http://www.gdlxb.cn/gdlxb EN-US http://www.gdlxb.cn/gdlxb/EN/current.shtml http://www.gdlxb.cn/gdlxb 5 -3 μm² to 4.87×10^-3 μm²(average of 0.59×10^-3 μm²). The dominant control factors for the distribution of the Es3L fine-grained reservoir development include lithofacies,sedimentary environment,diagenesis and thermal evolution of organic matter. In the middle and lower part of the Lower Sub-member of Third Member of Shahejie Formation,the amount of terrestrial input is low,the water salinity is high,and the water stratification is strong. The main lithofacies area LF2 and LF4,which are prone to the development of Class I and Class II high-quality reservoirs. The fine-grained reservoirs in Es3L are in the intermediate diagenetic stage A. The transformation of clay minerals,dissolution,recrystallization and dolomitization,as well as the thermal evolution of organic matter produce secondary pores and fractures,which improve the physical properties of the reservoir.]]>