Reservoir Engineering Aspects of Pilot Scale CO2 EOR Project in Upper Mississippian Formation at Wellington Field in Southern Kansas

摘要

A DOE sponsored pilot-scale project has been funded in which 30,000 metric tons of CO2 will be injected in the upper part of the Mississippian reservoir to verify CO2 Enhanced Oil Recovery (EOR) potential at Wellington field in South Kansas. Many conventional Mississippian oilfields in Kansas are going through final stages of water flooding and are at CO2 miscible or near miscible conditions. Wellington Field represents a typical Kansas Mississippian reservoir with very well documented production/injection history and proven performance and, therefore, it is ideal candidate for CO2 EOR. The main objective of this work is to evaluate reservoir properties, predict reservoir response, and evaluate possible risks for CO2 EOR in the Mississippian reservoir at Wellington Field.