Preliminary results of 1978 coal exploratory drilling in the Trinidad-Raton coal region, Las Animas County, Colorado

Content of adsorbed methane in coal from four core holes in the Raton and Vermejo formations, Las Animas County, Colorado

“…To furnish some data toward this objective, coal core desorption was done in conjunction with coal exploratory drilling by the U.S. Geological Survey (Danilchik, 1978). The gas desorption measurements were made by the Colorado This report presents the method and the results of the gas desorption measurements.…”

“…In the Appalachian region of the United States, techniques for draining methane from coal beds using drill holes have been successfully demonstrated (Deul, 1975)* To apply these techniques to Colorado coal fields, it would be necessary to have one or more coal beds four feet or greater in thickness present at economically attainable depths in an area sufficiently large to constitute an appreciable resource* The drilling program, described by Danilchik (1978), provides some information (Plate 1), but failed to fulfill all the previously listed requisites because the holes were too few and too widely spaced to determine the continuity of the gas-bearing zones and were not deep enough to include all of the coal beds in the coal-bearing section.…”