In situ thermal processing of a hydrocarbon containing formation leaving one or more selected unprocessed areas
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United States of America Patent
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Apr 20, 2004
Grant Date -
Mar 14, 2002
app pub date -
Apr 24, 2001
filing date -
Apr 24, 2000
priority date (Note) -
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Abstract
A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H.sub.2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. An unpyrolyzed section may be left between two substantially pyrolyzed sections to inhibit subsidence of the formation.
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