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Underground coal gasification: Its potential for long-term supply of sng. Occasional pub

Technical Report ·
OSTI ID:7271592
The paper examines the viability of underground coal gasification (UCU) as a future source of substitute natural gas (SNG). The economics of commercial scale UCG technology at a western site is estimated and compared with aboveground gasification and also with an extrapolation of GRI's Baseline Projection for natural gas prices. Although much technical and economic uncertainty exists regarding UCG, the potential reserve base for unmineable coals is very large, about four times that of currently mineable coals. Assuming that only 10 percent of the 1.8 trillion tons of marginal U.S. coal resources may be amendable to UCG, this represents 1000 trillion cubic feet of potential SNG production. The UCG economics of the paper are based on a techno-economic study conducted by Williams Brothers Engineering Company; the cosponsors included GRI, Amoco Production Company, Hunt Oil Company, and Williams Brothers Engineering Company.
Research Organization:
Gas Research Inst., Chicago, IL (United States)
OSTI ID:
7271592
Report Number(s):
PB-94-176021/XAB; GRI--84/0254
Country of Publication:
United States
Language:
English