@inproceedings{scholars7423,
            year = {2016},
         journal = {Procedia Engineering},
            note = {cited By 40; Conference of 4th International Conference on Process Engineering and Advanced Materials, ICPEAM 2016 ; Conference Date: 15 August 2016 Through 17 August 2016; Conference Code:131138},
           pages = {49--56},
           title = {Rheological Behaviour of Graphene Nano-sheets in Hydrogenated Oil-based Drilling Fluid},
             doi = {10.1016/j.proeng.2016.06.490},
       publisher = {Elsevier Ltd},
          volume = {148},
          author = {Ho, C. Y. and Yusup, S. and Soon, C. V. and Arpin, M. T.},
        keywords = {Bins; Cavitation; Dispersions; Drilling fluids; Fluid dynamics; Graphene; Hydrodynamics; Hydrogenation; Nanofluidics; Nanosheets; Newtonian liquids; Process engineering; Shear deformation; Shear stress; Temperature distribution; Viscosity, Experimental investigations; Graphene nanosheets; Hydrodynamic cavitations; Hydrogenated oil; Oil-based drilling fluid; Rheological behaviour; Rheological effect; Temperature dependence, Well drilling},
        abstract = {An experimental investigation has been carried out to investigate the rheological effect of hydrogenated oil-based drilling fluid when dispersed with graphene nano-sheets. The rheological aspects that were investigated were viscosity and shear stress of the fluid respectively. The weight concentration of graphene sheets carried out in this experimental investigation were 25 ppm, 50 ppm and 100 ppm respectively. Graphene nano-sheets were dispersed via hydrodynamic cavitation dispersion and ultrasonic bath for three (3) hours each. From the analysis, the graphene-oil based drilling fluid exhibit higher viscosity as compared to the hydrogenated oil-based drilling fluid over the shear rate range of 0 - 140 s-1. Interestingly, the graphene-oil based fluid is a Bingham fluid but behaves similar to a Newtonian fluid as it possesses zero shear stress. Temperature dependence of the studied nanofluid was carried out at 30{\^A}oC, 40{\^A}oC and 50{\^A}oC respectively to observe the relationship between the additions of nanoparticles into the hydrogenated oil-based drilling fluid as compared to the base fluid. Two rheological models (Bingham model and Power Law model) were fitted to predict the behavior of graphene-oil based drilling fluid with respect to temperature and shear rate. {\^A}{\copyright} 2016 The Authors.},
            issn = {18777058},
             url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85014004743&doi=10.1016\%2fj.proeng.2016.06.490&partnerID=40&md5=7368d5e8e1c717a83cf36d98f301c099}
}