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ORGANOPHILIC CLAY BASED DRILLING FLUIDS CONTAINING GEMINI SURFACTANT AND POLYACRYLAMIDE
ORGANOPHILIC CLAY BASED DRILLING FLUIDS CONTAINING GEMINI SURFACTANT AND POLYACRYLAMIDE
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机译:含双子表面活性剂和聚丙烯酰胺的有机粘土基钻井液
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摘要
A drilling fluid formulation which includes an aqueous phase, and additives including an organophilic clay, a gemini surfactant, and a polyacrylamide. The organophilic clay contains an ion-exchange reaction product of a clay material (e.g. smectite) and quaternary ammonium cations. The polyacrylamide contains reacted units of an acrylamide monomer, an acrylate monomer, and a hydrophobicity modifying monomer. Rheology properties of the drilling fluid including gel strength, yield stress, and storage modulus are specified. The additives present in the drilling fluid synergistically boost its shale swelling inhibition capability.
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