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METHODS FOR CLAY SWELLING INHIBITION USING GEMINI SURFACTANTS CONTAINING A SATURATED LINKER
METHODS FOR CLAY SWELLING INHIBITION USING GEMINI SURFACTANTS CONTAINING A SATURATED LINKER
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机译:使用含有饱和接头的Gemini表面活性剂的粘土溶胀抑制方法
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摘要
Methods of controlling clay swelling and stabilizing subterranean geological formations containing swellable clays (e.g., montmorillonite, bentonite) are described. The methods involve treating the swellable clays with a composition containing an amidoamine-based gemini surfactant. The gemini surfactant has dual chains connected via an alkylene linker, whereby each chain contains a quaternary ammonium head group and an ethoxylated alkyl tail. As examined by linear swelling and free swelling tests, use of the gemini surfactant is effective in reducing swelling of the clays.
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