Download or read book Carbon Dioxide Based Vapex for Enhanced Oil Recovery in Heavy Oil Reservoirs written by Blair M. Stengler and published by . This book was released on 2010 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: It was found that the substitution of a portion of the methane with CO2 did not negatively impact oil production. In some cases, recovery factors increased as the CO2 content in the solvent increased. The increase in production when incorporating CO2 in the solvent was more pronounced at higher reservoir pressure. The process was significantly more effective at higher reservoir temperatures. The use of a more viscous oil in the simulation lead to a substantial decrease in recovery. Finally, the optimal vertical spacing between the injection and production wells was found to be between 6 and 7 meters.