Vertical miscible flood to hike recovery by 70 million barrels
The unusual problem of miscible flooding in the Golden Spike D-3 Field of Alberta is discussed and the current project operations are outlined. Imperial Oil Ltd. has initiated one of the industry's most unusual and potentially rewarding miscible displacement projects here. This 1400-acre pinnacle reef pool now has some 500 ft of oil zone and 100 ft of secondary gas cap. Imperial is spotting a solvent bank horizontally across the pool at the existing gas-oil contact. Once in place, the bank will be displaced vertically downward through the reservoir by injecting dry gas into the gas cap. The relatively slow rate of solvent movement to the base of the reservoir and favorable density differences between driving gas, solvent and oil will result in virtually complete displacement of crude. Ultimate recovery from the pool now will be about 300 million bbl of oil. This is 96% of the original oil in place, and some 70 million bbl more than would have been recovered if the miscible flood had not been started. Another unique feature of the project is that the solvent is generated on location in the field from solution gas which is produced at some 60,000 bopd.
- OSTI ID:
- 6673583
- Journal Information:
- World Oil; (United States), Journal Name: World Oil; (United States) Vol. 162:1; ISSN WOOIA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Miscible flood to recover extra 100 million bbl. [Alberta]
Technology's role in Alberta's Golden Spike miscible project