Nonlinear AVA Inversion Based on a Novel Quadratic Approximation for Fluid Discrimination

Table 1

Parameters of model 1 and model 2.

	Lithology						(-)
Model 1	Water sand	3050	1595	2.23	7.509	5.673	2.333
	Gas sand	2780	1665	2.08	2.623	5.766
Model 2	Shale	2898	1290	2.425	10.951	4.035	2.333
	Gas sand	2857	1666	2.275	3.838	6.314