Figure 21

EMT-1 well acoustic impedance versus velocity ratio (VP/VS) Cross-plot, (A) In-situ log data AI/ (Vp/Vs) Cross-plot shows that the smallest GR values is represented by ideal brine sand, (B) Fluid substituted data, SW 50% data AI/VPVS Cross—plot shows that the smallest GR values is represented by ideal gas sand.