摘要
This paper analyzed the microcosmic heterogeneity characteristics of volcanic reservoir of the first member of Yingcheng Formation in Xudong area from the pore heterogeneity, grain heterogeneity and fillings heterogeneity and by using the methods of geostatistics analysis, core description and slice observation. The results show that the reservoir has the characteristics of low porosity and low permeability, and the grain heterogeneity and fillings heterogeneity are very strong.