Alkoxylated asphalts as co-surfactants in surfactant oil recover

Details Alkoxylated asphalts as co-surfactants in surfactant oil recover Alkoxylated asphalts as co-surfactants in surfactant oil recover

1975-09-10

1977-05-03

Guynn, Herbert B.

Compositions

Leather or fur treating

166273, 166274, 208 44, 252351, E21B 4322

Patent

active

040213560

ABSTRACT:
Ethoxylated asphalt solutions have high tolerance for sodium and calcium ions as well as magnesium and other divalent ions. The use of ethoxylated asphalts in combination with other surfactants that normally precipitate out in the presence of these cations results in a stable surfactant solution wherein the surfactant will not precipitate out and wherein the surfactant solution has the ability to efficiently sweep oil from subterranean hydrocarbon reservoirs.

REFERENCES:
patent: 3508612 (1970-04-01), Reisberg et al.
patent: 3811505 (1974-05-01), Flournoy et al.
patent: 3811507 (1974-05-01), Flournoy et al.

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