A Research on the Effect of Heterogeneities on Sandstone Matrix Acidizing Performance

Table 3

Parameters for layers A and B.

Parameters	Layer A	Layer A	Layer A	Layer B
Average porosity (%)	18	15	12	10
Average permeability (md)	100	50	20	10
Average fraction of fast-reacting mineral (%)	20
Average fraction of slow-reacting mineral (%)	75
Carbonate fraction (%)	5
Dimensionless porosity correlation length (, )	0.08, 0.0001
Porosity coefficient of variation	1