RECOVERY AND UP-GRADING OF BITUMEN FROM TAR-SANDS

摘要

This Patent relates to new or improved methods forrecovery of bitumen and heavy oil from tar-sands and toupgrading the same into marketable petroleum productsand energy producing fuels; and to tailings disposal ina more environmentaly acceptable way.Bitumen and Heavy-Oil are found in many countries,but in Northern and central Alberta they constitute oneof the largest Hydrogen-Carbon bodies in the world. Thesehydrogen carbons are resistant to flow at ambienttemperatures and cannot be recovered by conventional oilwell drilling.