Abstract: The study of sedimentology in China is no longer fixed on traditional sedimentary petrology. New disciplines growing up-on sedimentology are being unceasingly explored. Approaches integrating sedimentology and other disciplines are rigorously promoted, with special emphasis given to the studies of se-quence stratigraphy, reservoir sedimentology, orogenic sedi-mentology, and sedimentary basin analysis. Branches of sedi-mentology, such as environmental sedimentology, continental dynamic sedimentology and global-change sedimentology, are further developing. As each of the areas of sedimentology study is so closely related to social and economic development, it is ex-pected that sedimentology will flourish again in the 21th centu-ry.

Key words: enhenced oil recovery, gas injection, miscible floofing