CO_2 Injection in the Weyburn Field of Canada: Optimization of Enhanced Oil Recovery and Greenhouse Gas Storage With Horizontal Wells

摘要

Recently, a billion-dollar CO2 injection project has beenlaunched to increase oil recovery in the Weyburn field ofCanada. Initially, the project will use 5000 tonnes of CO2daily in 19 patterns. The background economic calculationsuse the assumption that miscibility will be achieved and asteady supply of CO2 at a cost of $35/tonne will be available.This paper provides detailed results of a comprehensivereservoir simulation study using a fully compositional model,in order to optimise the pattern and injection/productionstrategies.