Solution mining dawsonite from hydrocarbon containing formations with a chelating agent
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United States of America Patent
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Jul 7, 2009
Grant Date -
May 3, 2007
app pub date -
Oct 20, 2006
filing date -
Oct 24, 2005
priority date (Note) -
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Abstract
A method for treating an oil shale formation comprising dawsonite includes providing heat from one or more heaters to the formation to heat the formation. Hydrocarbon fluids are produced from the formation. At least some dawsonite in the formation is decomposed with the provided heat. A chelating agent is provided to the formation to dissolve at least some dawsonite decomposition products. The dissolved dawsonite decomposition products are produced from the formation.
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