Late Yanshanian sedimentary facies of late Yanshanian succession of eastern Yihezhuang salient, Jiyang depression, Bohai Bay basin, China

摘要

The sedimentary facies the late Yanshanian succession of eastern Yihezhuang salient in Jiyang depression, which was a pre-Cenezoic inland rift basin, were studied in order to improve the success rate of locating hydrocarbon reservoirs. Based on previous study, the sedimentary facies got identified in late Yanshanian succession in the study area through seismic profiles, well logs and cores. This study enhanced the sedimentary facies analysis to inland tectonically active basins, and would be helpful to predict reservoirs and carry on the second startup of petroleum resources in pre-Cenezoic residual basins.