According to core observation,well logging and boring,as well as the development performance data,reservoir sedimentary characteristics and heterogeneity and their effects on the flood development of block Bei 16,Xing anling Group in Sudeerte oilfield were comprehensively studied.

The reservoir sedimentation models are classified into rift model and sag model,which are fully represented in the passive rifts and active rifts,only different in sedimentary cycles that the active rift is bi-model with single cycle and the passive rift is bi-model with multi-cycle.

Reservoir sedimentary characteristics and heterogeneity of block Cao 4,member 4 of Shahejie formation in Lean Oilfield;

Mesozoic sedimentary characteristics and tectonic evolution in the eastern part of the Qiangtang basin;

Sedimentary characteristics of the shallow Jurassic braided river delta,the Junggar Basin;

Tertiary sedimentary features and environment of the Lanzhou-Minhe basin;

This paper deals with the sedimentary features of the Mesozoic Fanjiatang coal-bearing strata in the southwestern part of Wuwei county in terms of the composition of rocks,the texture and structure of sediments and fossils Combined with logging curves the early, middle and late periods of sedimentary environment are delimited and coal accumulation law is conclude