C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
31/8
C09K 8/584 (2006.01) B01F 17/00 (2006.01) E21B 43/22 (2006.01)
Patent
CA 1052555
ABSTRACT In an aqueous anionic surfactant system, for use in displacing oil within subterranean reservoirs, the multivalent cation tolerance is improved by the presence of both a solute which inhibits crystal growth and a solute which forms crystalline precipitates of multivalent cations.
226022
Na
Shell Canada Limited
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