DOI: 10.21276/sjet

Pages: 250-253

The energy of a nation is largely conditioned by the extent of prospective, surveyed and extracted oil and gas reserves and other natural resources. Hence this is the main source of somewhere economy. Experiments are held to investigate the effect of aging time and temperature on a prepared oil based drilling mud which contains nano ferric oxide particle. The rheological specifications of drilling mud in high temperature–high pressure viscometer are considered in this work to simulate the drilling conditions occurred in deep wells. Also, all results which are related to the rheological behavior of drilling fluid are at the higher range of shear rate value than those are related to the nano drilling fluid, at the constant temperature and the constant amount of shear stress.