Oil recovery by waterflooding employing multicomponent surfactan

Details Oil recovery by waterflooding employing multicomponent surfactan Oil recovery by waterflooding employing multicomponent surfactan

1975-03-20

1977-02-22

Purser, Ernest R.

Wells

Processes

Distinct, separate injection and producing wells

252 855D, E21B 4322

Patent

active

040087689

ABSTRACT:
A process for the recovery of oil from subterranean oil reservoirs by waterflooding employing an anionic-nonionic surfactant system which is particularly suitable for use in reservoirs in which the connate waters contain a high salt content, including divalent metal salts, or which may be employed in carrying out waterfloods in which the available injection waters exhibit a relatively high salt content. The multifunctional surfactant system comprises a surface-active amide linked sulfonate anionic group and a surface-active polyethylene oxide nonionic group and may be employed in an aqueous solution having a salinity within the range of 3 to 25 weight percent. Subsequent to the injection of the aqueous solution of surfactant, an aqueous flooding medium may be injected which exhibits a salinity which is lower than the salinity of the surfactant slug.

REFERENCES:
patent: 3096820 (1963-07-01), Bernard
patent: 3332486 (1967-07-01), McGhee
patent: 3455386 (1969-07-01), Reisburg
patent: 3474864 (1969-10-01), Hurd
patent: 3578781 (1971-05-01), Abrams et al.
patent: 3792731 (1974-02-01), Feuerbacher et al.
patent: 3811504 (1974-05-01), Flournoy et al.
patent: 3811505 (1974-05-01), Flournoy et al.
Pittaway, "The Effects on Interfacial Tension of Aging of the Surfactants IGEPAL CO-520 and IGEPON T-33," Sept. 3, 1974.
Schwartz and Perry, "Surface Active Agents," Interscience Publishers, 1949, pp. 326, 327.
"McCutcheon's D&E", 1970, p. 127.

Affiliated with

Also associated with

Rating

Oil recovery by waterflooding employing multicomponent surfactan does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Oil recovery by waterflooding employing multicomponent surfactan, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oil recovery by waterflooding employing multicomponent surfactan will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-319780