Composition for secondary and tertiary oil recovery
AssigneeMerck & Co., Inc.
InventorsNathaniel Grier, Richard A. Dybas, Robert A. Strelitz
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Abstract
An antimicrobial composition for secondary and tertiary oil recovery comprising a flooding composition consisting of displacement and driving fluids having incorporated therein an antimicrobially effective amount of a di-bicyclo[3.1.1] or [2.2.1] heptyl or di-bicyclo[3.1.1] and [2.2.1] heptenyl polyamines or salts thereof.
Claims4
A premix for incorporation into displacing and driving fluids used for injection into oil-bearing strata during oil production subsequent to primary recovery which comprises at least 0.0005% by weight of 1-[1,5-di-(3,3-dimethylnorborn-2-yl)-3-pentyl]-1,5,9-triazanonane, and acid addition salts thereof, at least .05% by weight of a hydrocarbon solvent soluble surfactant, and a hydrocarbon solvent, fluid at ambient temperature.
Dependencies are inferred from the claim text.