Compounds and method for enhanced oil recovery using sulfur surfactants
AssigneeIngevity South Carolina, LLC
InventorsKimberley D. MacEwan, Reinaldo C. Navarrete, Chao Yang
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Abstract
A method of enhanced oil recovery wherein: (a) a flooding composition is delivered into a subterranean reservoir; (b) the flooding composition includes a sulfur surfactant; and (c) the fluid produced from the subterranean reservoir can also be analyzed to determine if the surfactant is present in the fluid. The surfactant preferably includes a sulfonate moiety or other sulfur-containing moiety. The presence of the surfactant in the fluid produced from the subterranean reservoir is preferably determined by X-ray fluorescence spectroscopy, HPLC-AES, or HPLC-ICP.
Claims2
A compound of a formula:
- wherein R is a linear or branched hydrocarbon constituent group having from 8 to 24 carbon atoms.
A method of enhanced oil recovery from a subterranean reservoir comprising the:
- (a) delivering a flooding composition into said subterranean reservoir, said flooding composition including a surfactant comprising at least one sulfonate moiety or other sulfur-containing moiety, or a combination thereof;
- and
- (b) analyzing a fluid produced from said subterranean reservoir to determine if said surfactant is present in said fluid,
- wherein said surfactant comprises one or more compounds having a formula:
- wherein R is a linear or branched hydrocarbon constituent group of having from 8 to 24 carbon atoms.
Dependencies are inferred from the claim text.