Abstract: In framework of esential conditions required for for mation of a hydrocarbon bearing reservoir, including hydro-carbon generation,accumulation and presetvation,barrier salingy,migration and trapping,the hydrocat bon explo-ration sedimentology is discused.The discussions of hydrocarbon development sedimentology are made basd on the relationship among sedimentation,peirogenesis ani developing proces during development of hydroarbon reser-voir.In hydrocarbon exploration sedimentology, it's discussion is focused at the relationships among terrestrial sed-mentary facics, reservoir beds and traps.In hydroca. bon development sedimentology, i's discusion is focused at sedi mentary attributes and petrogenic characteristics,both are the foundation of reservoir study, and particularly empha-sised that the studies of reservoir sedimentology and petrogenesis process should be treated as most important content.

Key words: terrestrial sedimentology, hydrocarbon generating bed, reservoir bed, cap bed, hydrocarbon migration, trap, exploration, development