Ifp Energies Nouvelles

Energy Solutions (us) LLC

Rhodia Operations

Eloise Chevallier

Mikel Morvan

Max Chabert

Vincent Miralles

The invention relates to a composition which comprises within an aqueous medium: —at least one ethoxylated alkylamine; and—at least one amphoteric or zwitterionic surfactant. The invention further relates to the use of said compositions as foaming compositions, in particular for EOR (enhanced oil recovery).

Foaming formulations for enhanced oil recovery

The invention relates to a composition C which comprises, in an aqueous medium M: The invention further relates to the use of these compositions as foaming compositions for EOR.

Foaming compositions for enhanced oil recovery

A method for extracting a crude oil contained in a geological formation comprises a step of fracturing the geological formation, by injection of a specific aqueous extraction fluid under pressure, which contains at least one surfactant that reduces the interfacial tension between the extraction fluid and the crude oil to be extracted to below 0.1 mN/m; followed by a discharge step ('flowback'). Additionally, the original fracturing fluids used in this method, and the additives used in these fracturing fluids include a surfactant or a surfactant mixture which make it possible to reduce the interfacial tension between the fluid and a petroleum oil below 0.1 mN/m.

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Bordeaux, France

Eloise Chevallier