Studying rheological behavior of nanoclay as oil well drilling fluid
· Bentonite is commonly used to control the rheology and filtrate loss required for waterbased drilling fluids. In this study, the effect of clay modifiion on fluid viscosity and its dispersion in oilwet fluids were investigated and the thixotropic behavior of nanoclay and common bentonite samples were evaluated. Moreover, the viscosity of a nanoclay .