摘要
The reservoir performance of Member 8 of Middle Permian Xiashihezi Formation(He 8) reservoir in the Gaoqiao area of Ordos Basin is summarized and evaluated by analyzing the reservoir petrology,reservoir properties,the type of reservoir porosity and pore structure. According to the lithology and petrophysical properties of the reservoir,pore type and pore texture parameters,the reservoir is classified into four types.Type II and Ⅲ are the better-medium reservoirs in the research area,and the main reservoirs to increase production in the future.