Wells – Processes – Distinct – separate injection and producing wells
Patent
1979-06-04
1982-07-06
Guynn, Herbert B.
Wells
Processes
Distinct, separate injection and producing wells
166275, 252 855D, E21B 4322
Patent
active
043378285
ABSTRACT:
The method of recovering petroleum from a subterranean reservoir a polyepoxide condensate of at least one of: (a) a polyalkylene oxide adduct of a fusible, water-insoluble organic aromatic hydrocarbon solvent-soluble synthetic resin, wherein said resin has from between about 4 to about 15 phenolic groups and is an alkyl or cycloaliphatic substituted phenol-aldehyde condensate and (b) a polyether polyol including polyether amino polyols, said polyepoxide condensate at about 25.degree. C.: (i) being less than about 1% by volume soluble in water and in isooctane; (ii) having a solubility parameter in the range of between about 6.9 and about 8.5; and (iii) spreading at the interface between distilled water and refined mineral oil to form a film having a thickness no greater than about 20 Angstroms at a film pressure of about 16 dynes per cm.
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Guynn Herbert B.
Magna Corporation
Norvell, Jr. William C.
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