Prestack Inversion Identification of Dolomite Reservoirs in the Fourth Member of the Sinian Dengying Formation in Moxi Area, Sichuan Basin, SW China

Table 2

AVO types of reservoirs in the study area.

AVO type	Reservoir fluid properties	Reservoir parameters	AVO forward gathers of reservoir top boundary and trend analysis	Typical well and production
				Well name	Gas production (10^4m^3·d^-1)	Water production (m^3·d^-1)
I type	Gas layer	: 2.65 g/cm^3		MX22	105.61
		: 6231 m/s		MX108	27.21
		: 3445 m/s		MX118	31.48
		: 6%		MX109	63.98
		: 5%		MX105	24.46
III type	Gas layer	: 2.63 g/cm^3		MX103	14.87
		: 6312 m/s
		: 3476 m/s
		: 6%
		: 5%
IV type	Water layer	ρ:2.71 g/cm^3		MX52	4.75	10.98
		: 6204 m/s
		: 3211 m/s
		: 5%
		: 70%