An Improved Scheme of Frequency-Dependent AVO Inversion Method and Its Application for Tight Gas Reservoirs

Figure 12

Inversion profile through well cf125 by the new scheme (a) and Wilson’s (b). Two P–wave’s dispersion gradients at the location marked by red ellipse are low, and well test indicates the place is a poor gas reservoir (white block). Two inversion results match well test. But comparison shows that result by our scheme has better continuity and more contrast than that by Wilson’s.

(a)

(b)