Document Type : Reasearch Paper
Department of Nano Chemical Engineering, Shiraz University, Shiraz, Iran.
Research Institute of Petroleum Industry (RIPI), Tehran, Iran.
Maybe viscosity in drilling fluid is the most important parameter because cutting removal from well are task of viscose fluid. If viscosity of fluid is less than particular value, cutting will settle down in well and drilling operation will be stopped. In this study, synthesis of Alumina/Polyacrylamide nanocomposite through solution polymerization method was performed. Rheological behavior of mud drilling fluid after addition different amount of synthetic nanocomposite was measured for different periods of time. One of the major disadvantages of polymeric fluid is shear thinning property, called thixotropy. In this work we also test the influence of additive nano alumina particle in reduction of thixotropic behavior of drilling fluid. Adding different amount of synthetic nanocomposite increases the viscosity of drilling fluid up to more than 300 cP for both fresh and salt water mud at only 4 wt% and about 100 cP at2 wt% also reduces the rate of thixotropic behavior more than 5% after adding nano particles instead of free nano particle polymer.