| 摘要 |
Intrusion of saline waters into fresh water aquifers is inhibited by injecting into the aquifer in advance of the major portion of the saline water, a micellar dispersion comprised of a surfactant containing a cation which can be replaced in situ by a major cation within the saline water. For example, a micellar dispersion (containing a sodium petroleum sulfonate) is injected into an aquifer and upon contact with magnesium cation within the intruding saline water, the magnesium cation replaces the sodium cation and, as a result, the viscosity of the micellar dispersion increases substantially. The effect of the replacement of the cation is to form a very viscous material within the aquifer to inhibit saline water intrusion.
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