Lignin amine microemulsions

Details Lignin amine microemulsions Lignin amine microemulsions

1990-10-01

1992-03-10

Suchfield, George A.

Wells

Processes

Distinct, separate injection and producing wells

166274, 252 8554, E21B 4322

Patent

active

050942964

ABSTRACT:
The invention is a method of recovering hydrocarbons from an underground hydrocarbon formation having at least one injecting well and at least one production well which comprises injecting a microemulsion into the formation through an injection well, driving said microemulsion through the formation and producing hydrocarbons through a production well, said microemulsion comprised of an internal phase of a primary amine having from about 8 to about 22 carbon atoms, lignin, a water-soluble anionic sulfonate surfactant, a solubilizer and an oil, and an external phase of brine.

REFERENCES:
patent: 4006779 (1977-02-01), Kalfoglou
patent: 4271907 (1981-06-01), Gale
patent: 4353806 (1982-10-01), Canter et al.
patent: 4384997 (1983-05-01), Detroit
patent: 4611659 (1986-09-01), DeBons et al.
patent: 4822501 (1989-04-01), DeBons et al.
patent: 4946606 (1990-08-01), Osterloh
Prince, Leon M., Microemulsions: Theory and Practice, Academic Press, New York, 1977, p. 34.
Drew Myers, Surfactant Science and Technology, VCH Publishers, New York, 1988, pp. 172, 178.
Tadros, Th. F., "Influence of Structure and Chain Length of Surfactant on the Nature and Structure of Microemulsions", Structure Performance Relationships in Surfactants, American Chemical Society, 1984, p. 154.

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