WebTar Sands, Oil Shales, and Fracking. Far greater amounts of fossil fuel energy are found in tar sands and oil shales than in coal. Accessing these energy sources entails much higher environmental costs. Oil shales and tar sands harbor approximately twice the energy potential of coal, or 10 times the energy in remaining oil reserves. Web19 de fev. de 2013 · Tar sands retrieved by surface mining has an EROI of only about 5:1, according to research released Tuesday. Tar sands retrieved from deeper beneath the earth, through steam injection, fares even ...

Mass Spectrometric Characterization Of Shale Oils

WebTar Sands and Oil Shales The world's largest potential liquid-hydrocarbon reserves are not recoverable by ordinary oil-producing methods. The pace of their exploitation depends … WebTar Sands and Oil Shales The world's largest potential liquid-hydrocarbon reserves are not recoverable by ordinary oil-producing methods. The pace of their exploitation depends on technical, economic and political factors The advance of technology exerts a powerful force on the course of events in an industrial society, but it rarely operates ... how do you change your youtube name

Oil Shale and Tar Sands - Biological Diversity

http://large.stanford.edu/courses/2014/ph240/montgomery1/ Web24 de nov. de 2015 · Oil sand production methods • The oil sand industry uses two major methods to produce oil from bituminous sands • 1. Open Pit mining • 2. In-situ mining: … WebTar Sands to Oil. There are two ways in which we can obtain the tar sands in order to create oil. One way is by mining on the surface (less than 100 meters deep). The second … pho slang word