Two-Parameter Inversion of Fluid-Saturated Porous Medium with Niche Ant Colony Algorithm

Table 4

The inversion results of two parameters with 5% noise.

Parameter	True value	Inversion value	Absolute error	Relative error (%)
Porosity 𝜑	0.333000	0.332193	0.000807	0.242342
Permeability 𝑘	0.004883	0.004465	0.000418	8.560311