Method and composition for enhanced hydrocarbons recovery
AssigneeShell Oil Company
InventorsPaul Shpakoff, Kirk Raney
Life of this patent
Estimating the term…
Abstract
A method of treating a hydrocarbon containing formation is described. The method may include providing a hydrocarbon recovery composition to the hydrocarbon containing formation. Hydrocarbons in the hydrocarbon containing formation may interact with the hydrocarbon recovery composition. The hydrocarbon recovery composition may include an aliphatic anionic surfactant and an aliphatic nonionic additive. In some embodiments, an aliphatic anionic surfactant may be branched. In other embodiments, an aliphatic nonionic additive may be branched.
Claims31
A method of treating a hydrocarbon containing formation, comprising:
- providing a composition to at least a portion of the hydrocarbon containing formation, wherein the composition comprises a branched aliphatic anionic surfactant and an aliphatic nonionic additive;
- and
- allowing the composition to interact with hydrocarbons in the hydrocarbon containing formation.
(canceled)
4-5. (canceled)
9-12. (canceled)
(canceled)
35-186. (canceled)
Dependencies are inferred from the claim text.