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U.S. Department of Energy
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Flooding with micellar dispersions containing petroleum sulfonates obtained by sulfonating whole or topped crude oil

Patent ·
OSTI ID:7309548
Flooding of a subterranean formation with micellar dispersions containing petroleum sulfonates obtained by sulfonating whole or topped crude oil is improved through the use of a micellar dispersion of a predetermined viscosity containing an amount of cosurfactant in excess of that required to cause the micellar dispersion to have the highest viscosity possible for the particular micellar dispersion with the particular cosurfactant used. Preferably, the cosurfactant is an alcohol and the cosurfactant concentration is sufficiently high to control the micellar dispersion to have a predetermined mobility when injected into a hydrocarbon-bearing formation. 14 claims, 3 figures.
Assignee:
Marathon Oil Co.
Patent Number(s):
US 4013125
OSTI ID:
7309548
Country of Publication:
United States
Language:
English