~ 1307 ~ International Journal of Chemical Studies 2017; 5(5): 1307-1311 P-ISSN: 2349–8528 E-ISSN: 2321–4902 IJCS 2017; 5(5): 1307-1311 © 2017 IJCS Received: 17-07-2017 Accepted: 20-08-2017 Saleh Nokhbatolfoghahaei Department of Petroleum Engineering, Lamerd Branch, Islamic Azad University, Lamerd, Iran Farshad Farahbod Department of Chemical Engineering, Firoozabad Branch, Islamic Azad University, Firoozabad, Iran Abdolhamid Ansari Department of Petroleum Engineering, Lamerd Branch, Islamic Azad University, Lamerd, Iran Correspondence Farshad Farahbod Department of Chemical Engineering, Firoozabad Branch, Islamic Azad University, Firoozabad, Iran Evaluation of kinetic and electrical of drilling fluid as basic fluid in drilling process Saleh Nokhbatolfoghahaei, Farshad Farahbod and Abdolhamid Ansari Abstract The heating properties of nano drilling fluid are very important in the upstream and also downstream fields. Experiments are held to investigate the effect of ferric oxide nano particles on the thermo electrical properties of drilling slurry. The main purpose of this study is to improve the the thermo electrical properties of drilling slurry by nano ferric oxide. The objective of designing drilling fluid for extreme and deep environment (HPHT wells) is to develop high performance drilling fluid system in well bore to achieve zonal isolation. So, the thermal conductivity, electrical conductivity and overall heat transfer coefficient are investigated in this paper. Results show the behavior of nano drilling fluid in the conduction mechanism can followed by polynomial with order 3th. The experimental results show the heat transfer with two mechanisms of convection and conduction can increase with increasing the percentage of used ferric oxide. This characteristic can be introduced in the novel drilling fluid. Keywords: electrical conductivity; thermal conductivity; drilling fluid additives; high performance drilling fluid system. 1. Introduction During a well cementing operation purpose should be achieve zonal isolation (Nediljka et al., 1994) [16] . That belongs to the slurry design, to ensure the best quality of cementing especially at high temperature environment such a HPDFS Silica Fume (SF) use as a cement slurry additive to reduce the density of cement (Siddique and Khan, 2011). SF increase slurry performance and control hydrostatic pressure during drilling cementing. This mixture used as primary source for a hydraulic seal in the well bore as secondary application is used for remedial operations including depleted zone closing, splits and leaks repair (Nediljka et al., 1994) [16] . The function of SF is allows a well to reach full production potential besides producing a blocking effect in the oil well. It is also responsible to prevent gas migration and highly effective for proper placement and decrease permeability for better control of weak zones (Siddique and Khan, 2011). Compressive strength of concrete containing SF is proved higher strength; as increase the concentration of silica fume it improves stress resistance in the early development and reduces the free water (Mehta and Gjorve, 1982 and Shadizadeh et al., 2010) [12, 17] . The thermo electric and also, the rheological properties of drilling fluid play important role to determine the workability of slurry, fineness (Shahriar and Nehdi, 2012) [19] . The mixing process is very important parameters for thermal and rheological behavior of drilling slurry, the criteria of designing slurry depends on formulation, thermal conductivity, density, plastic viscosity, shears tress, yield point and gel strength for enhance durability and toughness for drilling slurry (Shahriar and Nehdi, 2011) [18] Cement grout is used for sealing geothermal wells for is olatezones drilling fluid operation. The electrical and rheological behaviors of drilling slurry are important for the drilling process; it will be optimum to predict correctly about slurry placement (Bannister, 1980) [3] . Drilling slurry is concentrated suspensions of small and heavy particles so thermal and rheological measurements are suffering to the disruption of drilling operation (Miranda et al., 2010) [13] . The thermo electrical properties and the rheology of Oil Well drilling fluid (OWDF) should be considered when it applied on the originally and primarily casing drilling. Therefore, fundamental knowledge of OWDF slurry rheology is necessary to evaluate the ability to mix and pump grout, remove mud and slurry placement optimization and to predict the effect of temperature on the slurry pit (Shahriar and Nehd, 2011) [18] . Incomplete mud removal can result in poor drilling fluid bonding, zone communication and ineffective stimulation treatment (Bannister, 1980) [3] . A rheology is study related to the flow of fluids and deformation of solids under