Shell Oil Comapny

Shell Internationale Research Maatschappij, B.v.

Andrew Granja Shepherd

Thomas Carl Semple

Julian Richard Barnes

Robert Moene

Reinaldo Conrado Navarrete

Marten Adriaan Buijse

Marinus Cornelis Hendrikus Grutters

Marinus Cornelis Grutters

A hydrocarbon recovery composition which comprises a first blend of C24-28 internal olefin sulfonates and an injectable fluid composition comprising the hydrocarbon recovery composition, water and/or brine wherein the hydrocarbon recovery composition is present in an amount of from 0.05 to 1.0 wt % of the total injectable fluid composition can be used for enhanced hydrocarbon recovery from a formation.

Composition for enhanced hydrocarbon recovery from a formation

A method of treating a formation containing crude oil with specific solubility groups and chemical families is described. The method includes (a) providing a hydrocarbon recovery composition to at least a portion of a formation containing crude oil with specific solubility groups and chemical families, wherein the composition comprises a Cinternal olefin sulfonate; and (b) allowing the composition to interact with hydrocarbons in the crude oil containing formation.

Method and composition for enhanced hydrocarbon recovery from a formation containing a crude oil with specific solubility groups and chemical families

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Assen, Netherlands

Andrew Granja Shepherd