Conductively heating a subterranean oil shale to create permeability and subsequently produce oil
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United States of America Patent
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Dec 12, 1989
Issued Date -
N/A
app pub date -
Feb 17, 1988
filing date -
Mar 21, 1983
priority date (Note) -
Expired
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Abstract
Shale oil is produced from a subterranean interval of oil shale, where the interval is initially substantially impermeable and contains a specified grade and thickness of oil shale. Said interval is conductively heated from borehole interiors which are kept hotter than about 600.degree. C. and are heated at a rate such that kerogen pyrolysis products formed within the oil shale create and flow through horizontal fractures which subsequently extend into fluid-producing wells that are positioned in specified locations.
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