Study of flue gas and steam assisted gravity drainage

Flue gas assisted steam gravity drainage technique (SAGP) is a both economic and environmental approach to improve heavy oil reservoir development effect, which can control steam chamber growth, save thermal energy and reduce greenhouse emission. Based on the problems of a pilot SAGD reservoir at Liaohe Oil Field is facing, a robust gas-oil equation of state parameters based on PVT experiment data are constructed using phase behavior simulation method. Then, a typical 1-well-patten heavy oil reservoir model simulation was successfully carried on and revealed several benefits of SAGP. For example, SAGP can reduce steam injection volume and heat loss, lower cap temperature, enhance steam chamber sweep volume and sequestrate the flue gas underground.