Wells – Processes – Distinct – separate injection and producing wells
Patent
1985-01-31
1987-03-10
Suchfield, George A.
Wells
Processes
Distinct, separate injection and producing wells
E21B 4322
Patent
active
046484515
ABSTRACT:
A process for the enhanced oil recovery in oil reservoirs having a significant cation exchange capacity. A displacement slug is injected into an injection well formed from several successive zones, the solubility in the injection water of the anionic surfactant which it contains being adjusted so as to increase, for compensating the rock-micellar solution interactions, from one zone of the slug to the next considering the order of introducing the different zones of the slug.
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Baviere Marc
Gaal Gyorgyi
Gesztesi Gyula
Moulu Jean-Claude
Paal Tibor
Institut Francais du Pe'trole
Magyar Szenhidrogenipari Kutato-Fejleszto Intezet
Suchfield George A.
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