Study quantifies Powder River coal seam properties

Matt Mavor Tesseract Corp. Park City, Utah Tim Pratt Ticora Geosciences Inc. Denver Roland DeBruyn Redstone Resources Inc. Denver Gas Research Institute (GRI) is funding an ongoing study to understand why operators have been so successful at producing gas from Powder River basin, Wyoming, coal gas reservoirs. This article summarizes results from the study aimed at quantifying coal seam properties. In the early 1990s, conventional wisdom concluded that large-scale, commercial natural gas production from these coals was not possible. The coals were recognized as high-permeability aquifers that could not be sufficiently "dewatered" to produce sorbed natural g...

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