Synergistic effect of nickel nanoparticles with tetralin on the rheology and upgradation of extra heavy oil

Abstract Heavy oil is a boon and a bane, the former due to its untapped energy potential and the latter due to the difficulties in production, flow assurance, and upgradation challenges. Nanotechnology applications for oil and gas industry are at their nascent stage of development, amongst these, heavy oil upgradation using nanoparticles is an area of emerging research. In this work, a synergistic effect of nickel nanoparticles (