Invention Grant
US08573299B2 Non-ionic alkali polymer solutions for enhanced oil recovery in a subterranean formation 有权
非离子碱性聚合物溶液,用于在地层中提高采收率

Non-ionic alkali polymer solutions for enhanced oil recovery in a subterranean formation
Abstract:
A method for enhancing oil recovery is disclosed. The method includes providing a subsurface reservoir containing hydrocarbons therewithin and a wellbore in fluid communication with the subsurface reservoir. A solution for injection into the reservoir is formed by mixing a composition with at least one non-ionic chemical, at least one polymer, and at least one alkali. The non-ionic chemical can be alcohol alkoxylates such as alkylaryl alkoxy alcohols or alkyl alkoxy alcohols. The solution is solution is clear and aqueous stable when mixed. The solution is injected through the wellbore into the subsurface reservoir.
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