Quantitative Characterization and Controlling Factors of Shallow Shale Reservoir in Taiyang Anticline, Zhaotong Area, China

Pore and its structural characteristics are key parameters affecting shale gas reservoir development. Accurate quantitative characterization of pore is great significance for evaluating state. In this study, 15 shallow marine samples were collected in Well Y108. X-ray diffraction results indicate that brittle minerals the most common components shale. paper, various types classified characterized by scanning electron microscope images. The total porosity measured mercury intrusion method between 3.2% 6.5%. addition, a petrophysical model established to calculate matrix fracture. consistent with porosity. Three (VTOC > VBri VClay) obtained. low-pressure N2/CO2 adsorption experiment allows analysis volume, specific surface area, size. Finally, it was determined primary space mesopores micropores. impact constituents on pores their properties also covered work. enrichment organic carbon conducive development pore-fracture system. Additionally, there positive linear relationship porosity, average diameter,