Soda-anthraquinone lignin sacrificial agents in oil recovery

Wells – Processes – Distinct – separate injection and producing wells

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166273, 166275, 252 855D, E21B 4322

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active

045095973

ABSTRACT:
A supplemental oil recovery method comprising injecting into a subterranean formation a fluid containing soda-anthraquinone lignin which is adsorbed by adsorptive sites therein and functions as a sacrificial agent and thereafter injecting a micellar dispersion containing a surfactant into the subterranean formation to displace the oil contained therein.

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patent: 4313500 (1982-02-01), Johnson, Jr. et al.
Gale et al., Soc. Pet. Eng., vol. 13, No. 4, p. 191 (1973).
Bozena Kosikova et al., Paperi Ja Pun, vol. 62 (4a), pp. 229-236 (1980).
Irwin A. Pearl, The Chemistry of Lignin, Mariel Dekker, Inc., N.Y., N.Y., pp. 19-22 (1967).
Fredrich Emil Brauns, The Chemistry of Lignin, Academic Press, Inc., N.Y., N.Y., pp. 99 and 416 (1952).

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