Formation and Potential of Fractured Shale Reservoirs in China

Qi Li¹, Suwei Shao¹, and Renhua Kang^2
1 China University of Geosciences, Wuhan, Hubei Province, China
² Shengli Oilfield LTD, SINOPEC, Dongying, Shandong province, China

Fractured Shale reservoirs are mainly composed of shales and mudstones,abundant in organic matter, calcareous and siliceous minerals. There are three genetic types of frature which are structural, overpressured and diagenetic contraction ones in the source rocks. The reservoir caprock are made up of non-fractured mudstones, gypsum and halite rock. And anticline and monocline are major trap types.The fractured shale reservoir are believed to have great source potiential due to a great deal of hydrocarbon remained in the source rocks.