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US 12,006,470 B2Granted
Sulphonated internal ketone-based formulations for assisted recovery of oil
AssigneesRhodia Operations, Ifp Energies Nouvelles
InventorsMikel Morvan, Pascal Pitiot, Loïc Baussaron, Roberto Company
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Abstract
The present invention relates to compositions for enhanced oil recovery, comprising: (A) internal ketones sulfonated alpha to the ketone group; and (B) unsulfonated internal ketones, with a molar ratio B/(A+B) greater than or equal to the limiting molar concentration of unsulfonated ketones from which a stabilization is observed in the reduction in mobility when the mixture of said ketones is injected into a porous medium.
Claims9
A composition suitable for enhanced oil recovery, comprising:
- (A) internal ketones sulfonated alpha to the ketone group;
- and
- (B) unsulfonated internal ketones,
- with a molar ratio B/(A+B), corresponding to the molar concentration of unsulfonated ketones, ranging between 10% and 50%.
1 more element
Dependencies are inferred from the claim text.