... scenarios to identify gas or CO 2 in reservoirs and determine the gas saturation with case studies (Iglesias et al., 2016; Rose et al., 2017). Simulated log response in a forward formation model of shale and sand, that shows FNXS is sensitive to gas-filled porosity variation, but insensitive to liquid...

.... The forward modeling of quadrupole dispersion behavior is based on a homogeneous isotropic (HI) formation model which already includes the tool-presence effects. An automatic selection method of frequency band is designed to minimize errors from unknown borehole parameters. The multi-shot processing mode...