E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/31
E21B 43/22 (2006.01) C09K 8/58 (2006.01)
Patent
CA 1063013
"Abstract of the Disclosure" A process for the recovery of petroleum from a sub- terranean formation by the injection of a micellar displace- ment system consisting of a micellar solution and aqueous phase including the ammonium or alkali metal salt of an amino- polycarboxylic acid as a chelating agent. The chelating agent is present in concentrations in excess of the stoichiometric amount required to chelate the multivalent ion of the aqueous phase.
273901
Ferr Donald H.
Holm Leroy W.
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