Results of direct-method determination of the gas content of US coalbeds. Information Circular/1986

Abstract

In 1972, the Bureau of Mines developed a direct-method test for measuring the gas content of virgin-coal core samples for coal mine health and safety considerations. Since that time, approximately 1500 coal samples from more than 250 coalbeds in 17 States have been collected for gas content determination. This report makes the Bureau's extensive data base of gas-content data more readily available to the coal and gas industries. The data are presented in tabular form, alphabetically by coalbed name and by State. The components of the total gas content (lost, desorbed, and residual gas) are given. Location (State and country), sample depth, coalbed or formation name, and coal rank are included for geographic and geologic identification.