Formulation and method of use for exploitation of heavy and extra heavy oil wells
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United States of America Patent
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Aug 18, 2015
Grant Date -
Oct 4, 2012
app pub date -
May 18, 2012
filing date -
Dec 20, 2010
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Abstract
A combined injection and production method includes establishing a production well and an injection well into a hydrocarbon-bearing formation; introducing a mixture of a surfactant, a co-surfactant and a carrier fluid into each of the production well and the injection well so that the mixture flows into porous media surrounding the production well and the injection well; holding the mixture in the porous media surrounding the production well in the presence of water for a period of time sufficient to form a water film on surfaces of the porous media surrounding the production well; and injecting an injection fluid into the injection well while producing from the production well, whereby hydrocarbons flow from the porous media around the injection well toward the production well.
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