Solution mining systems and methods for treating hydrocarbon containing formations
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United States of America Patent
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Jul 14, 2009
Grant Date -
Sep 27, 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 nahcolite is disclosed. The method includes providing a first fluid to a portion of the formation through at least two injection wells. A second fluid is produced from the portion through at least one injection well until at least two injection wells are interconnected such that fluid can flow between the two injection wells. The second fluid includes at least some nahcolite dissolved in the first fluid. The first fluid is injected through one of the interconnected injection wells. The second fluid is produced from at least one of the interconnected injection wells. Heat is provided from one or more heaters to the formation to heat the formation. Hydrocarbon fluids are produced from the formation.
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