The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Figure

AAPG Bulletin; Year: 2021; Issue: August
DOI: 10.1306/02262118214

Return to Full Text

Figure 13. Pie charts showing the difference in bulk and clay mineralogy from volume percent (A), weight percent (B), and volume percent assuming 95% illite microporosity (C) in reservoir-quality Cypress Sandstone. Mineralogy by weight percent (mean volume of microporosity $\left[V_m\right])$ is taken directly from the x-ray diffraction (XRD) analysis. Volume percent (effective clay mineral volume $\left[V_e\right])$ is acquired by accounting for clay microporosity in XRD data. Data represent all 56 sample depths from the 3 wells analyzed in this study. ${\overline{\varphi }}_m$ = average clay mineral microporosity.

Return to Full Text