Modeling and Estimation of Subsurface Transport Profile for Methane Release Using H-Infinity Filtering

Abstract

In this paper, we propose an H-infinity filtering based algorithm to estimate the subsurface plume profile of methane release in porous media. The model presented here is a modified Lagrangian dispersion model used to simulate the advective-dispersion of methane gas plume in porous media. The chemical gas sensors are mounted in an access tube placed vertically inside the subsurface. The nature of the medium is assumed to be non-heterogeneous and a uniform plume release is presumed. The dispersion coefficients of the dusty gas model are used in the model to describe the gas transport.