In-situ and laboratory measurements of coal matrix and cleat permeability

Abstract

Micropores and the cleat network of coal provide the principal source of permeability for fluid flow. The flow behavior of fluids under varying total stress and different environmental conditions are examined in field and laboratory experiments. Based on the measurements a multi-scale, two-phase flow model to describe and quantify the various effects of the mine operation will be developed with a focus on the challenge of extrapolating point based results from a small scale to a regional scale.