Enhanced oil recovery using sulfonate mixtures

C - Chemistry – Metallurgy – 09 – K

Patent

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Details

C09K 8/584 (2006.01) B01F 17/02 (2006.01) B01F 17/12 (2006.01) E21B 43/20 (2006.01)

Patent

CA 2732878

A surfactant blend of a low molecular weight surfactant and a high molecular weight surfactant to be used in an aqueous flooding. The surfactant blend may be neutralized with an alkali or alkaline agent. The surfactant blend may be mixed with a polymer. Surfactant blends of the present invention increase oil recoveries from oil reservoirs.

La présente invention concerne un mélange de tensioactifs comprenant un tensioactif de faible poids moléculaire et un tensioactif de poids moléculaire élevé destinés à être utilisés dans un procédé d'injection d'eau. Le mélange de tensioactifs peut être neutralisé avec un alcali ou un agent alcalin. Le mélange de tensioactifs peut être mélangé avec un polymère. Les mélanges de tensioactifs de la présente invention augmentent les récupérations de pétrole à partir des gisements de pétrole.

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