e-Article
Measurement of the flow properties of coals for in-situ gasification. Progress report, July 1978--September 1978. [As a function of water saturation and orientation]
Document Type
Technical Report
Author
Source
Subject
Language
English
Abstract
The effective and relative permeabilities of Hanna, Wyoming sub-bituminous coals and Texas lignites to nitrogen and carbon dioxide were measured as functions of water saturation and structural orientation at simulated overburden pressures of 200 psig and 400 psig. Porosity values derived from water saturation and shrinkage values were also obtained for the six Hanna and three lignite samples which were tested. The results of permeability tests on five Texas lignites reported previously were coupled with the three new runs to obtain average relative permeability curves for the lignites. The present work merely adds to the statistical population developed under the contract and analysis will be a partial function of the final report.