Lignosulfonated derivatives for use in enhanced oil recovery

Details Lignosulfonated derivatives for use in enhanced oil recovery Lignosulfonated derivatives for use in enhanced oil recovery

1980-07-01

1983-05-24

Guynn, Herbert B.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

166274, 252 855D, C07G 100, E21B 4322

Patent

active

043849970

ABSTRACT:
A composition useful in supplemental oil recovery from subterranean geological formations which composition includes a lignosulfonate that has been reacted with a halocarboxylic acid in an aqueous alkaline medium; and the process of introducing this composition into subterranean formations and reservoirs for the purpose of recovering additional petroleum therefrom.

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patent: 3469630 (1969-09-01), Hurd et al.
patent: 3726850 (1973-04-01), Detroit
patent: 3841887 (1974-10-01), Falkehag et al.
patent: 4006779 (1977-02-01), Kalfoglou
patent: 4069217 (1978-01-01), Detroit et al.
patent: 4088640 (1978-05-01), Detroit
patent: 4133385 (1979-11-01), Kalfoglou
patent: 4172497 (1979-10-01), Kalfoglou
patent: 4219471 (1980-08-01), Detroit

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