HYDROCARBON RECOVERY PROCESS
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United States of America Patent
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app pub date -
Apr 28, 2015
filing date -
Apr 28, 2014
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Abstract
A process for hydrocarbon recovery from a hydrocarbon-bearing formation utilizing an injection well for the injection of a mobilizing and displacing fluid, such as steam, into the formation and a production well, spaced from the injection well, and through which hydrocarbon is recovered. The process includes injecting a surfactant and a gas into the production well for a first period of time to thereby emplace or form foam to an extent sufficient to modify the path of flow in an inter-well region between the injection well and the production well and in an area spaced from the inter-well region of the reservoir, which area is in fluid communication with at least one of the injection well and the production well. The process also includes injecting fluid into the injection well to cause the flow of hydrocarbon in the formation and recovering the hydrocarbon through the production well.
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