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Evaluation of PAC with Nanoclay as drilling mud
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Nine different formulations were built and subsequently their rheological properties were measured according to American Petroleum Institute (API). Porous media model was designed by Corel DRAW (Corel Corporation of Ottawa, Canada)computer software and applied on the glass. Using this kind of micro-models enable us to design the porous media with real dimensions. Statistical analyses showed that 75%wt of nanoclay suspension and Poly anionic cellulose could successfully improve the rheological properties. The existence of nanoclay in the suspension could significantly compensate viscosity reduction up to two times by increasing shear rate.