A Theoretical approach to the Evaluation of Insitu Coal


K. W. Edwards, K. M. Banks
Roke Oil Enterprises Ltd

Formation Evaluation Symposium of the
Canadian Well Logging Society in Calgary, October 24, 25, 26, 1977



CWA method. The formulation of a theoretical basis for the eva- luacion of insitu coal through the use of geophysi- cal logs is outlined. This involved the development of an approach to the interpretation of resistivity in environments having multiple conductive and non- conductive components. Utilizing this approach and other conventional interpretation techniques, a program was developed yielding accurate determina- tion of the insitu percentages of coal, water and ash for the evaluation of coal deposits. Basic in- formation obtained from the CWA program can be uti- lized in numerous aspects gf total mine planning.