Upgrading and mining of coal
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United States of America Patent
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Nov 29, 2005
Grant Date -
Sep 18, 2003
app pub date -
Oct 24, 2002
filing date -
Oct 24, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for treating a coal formation to alter properties of coal in the formation is provided. In one embodiment, heat from one or more heaters may be provided to at least a portion of the formation. Heat may be allowed to transfer from the one or more heaters to a part of the formation. In certain embodiments, the heat from the one or more heaters may pyrolyze at least some hydrocarbons within the part of the formation. The method may include producing a fluid from the formation. In some embodiments, the produced fluid may include at least some pyrolyzed hydrocarbons from the formation. In an embodiment, after at least some coal has been treated at least a portion of such coal may be produced from the formation.
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