Delineating Deformed Coal Development Zones With Lithological Inversion Methods Based on Logging Curve Reconstruction

The occurrence and distribution of deformed coal is one of main geological factors to control coal and gas outburst. It is very difficult to delineate the distribution of deformed coal with conventional methods. Based on logging curve reconstruction way, the paper uses the lithological inversion methods, including pseudo impedance inversion and porosity inversion, to determine the distribution of deformed coal with features of soft layer.