Methods and Systems for In-Situ Extraction of Bitumen
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United States of America Patent
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Issued Date -
Jan 31, 2013
app pub date -
Jul 25, 2012
filing date -
Jul 26, 2011
priority date (Note) -
Abandoned
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Abstract
A method for carrying out in-situ bitumen extraction can include a step of forming one or more vertical freeze walls within or around a deposit of bituminous material and establishing a laterally confined deposit of bituminous material; a step of injecting a solvent within the laterally confined deposit of bituminous material; a step of withdrawing a mixture of dissolved bitumen and solvent from within the laterally confined deposit of bituminous material; a step of injecting water within the laterally confined deposit of bituminous material; and a step of withdrawing a mixture of solvent and water from within the laterally confined deposit of bituminous material.
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