Compositions – Leather or fur treating
Patent
1990-12-20
1992-01-21
Stoll, Robert L.
Compositions
Leather or fur treating
252 8552, 252 8554, 166268, 166271, 166274, 166272, 166295, 166300, 523130, E21B 4322
Patent
active
050825771
ABSTRACT:
For selectively reducing permeability to water in an underground formation producing oil and/or gas, injecting into the formation a composition comprising water, at least one water soluble aldehyde compound at a concentration (by weight) of 180 to 20,000 ppm and at least one non-ionic polysaccharide at a concentration (by weight) of 200 to 5000 ppm, the concentration of aldehyde compound being higher than that of polysaccharide. The composition may be used in the water injection well or the hydrocarbon producing well and may assist in the recovery of hydrocarbons.
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Kohler Norbert
Zaitoun Alain
Institut Francais du Pe'trole
Sayala Chhaya
Stoll Robert L.
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