As defined by the U.S. Geological Survey (USGS), heavy oil is a type of crude oil characterized by an asphaltic, dense, viscous nature (similar to molasses), and its asphaltene (very large ...
Image Credit: Bruker BioSpin - NMR, EPR and Imaging ESR Analysis of Asphaltene and Vanadium in Crude Oil Can Determine its Quality Currently, crude oil accounts for about one-third of global energy ...