Characteristics and genesis of coastal sand bar in Carboniferous Yanghugou Formation,western margin of Ordos Basin
Due to the lack of understanding of the genesis of the Carboniferous Yanghugou Formation coastal sand bar in the western edge of Ordos Basin,which hinders the further development of the reservoir.This paper,based on the core observation and regional geological data of the core wells such as well Huitan1,well E32,well E33,well Le1 in the study area,combined with the analysis of rock grain size,log curve characteristics and element analysis,analyzes the sedimentary characteristics of Yanghugou Formation coastal sand bar in the western edge of the Ordos Basin The sedimentary characteristics and control factors of the sand body of the sand bar are systematically studied.The results show that the sand bars in the study area are banded and gathered along the paleo-uplift,and the sand body thickness of the sand bars in the south is large.The results can provide a useful reference for the next exploration and development of the favorable areas of Yanghugou Formation in the Ordos Basin.