Micellar flooding process
Patent
·
OSTI ID:7219298
A process is given for the recovery of petroleum from a subterranean formation by the injection of a micellar displacement system consisting of a micellar solution and aqueous phase including the ammonium or alkali metal salt of an aminopolycarboxylic 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. 30 claims.
- Assignee:
- Union Oil Co. of California
- Patent Number(s):
- US 4036300
- OSTI ID:
- 7219298
- Country of Publication:
- United States
- Language:
- English
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