Method of improved oil recovery by simultaneous injection of steam and water
Patent
·
OSTI ID:5675159
A method is disclosed for recovering heavy oil from a subterranean, permeable, heavy oil-containing formation comprising injecting steam into the lower portion of the formation, injecting a controlled amount of unheated water into the upper portion of the formation and displacing the oil through the formation toward a production well where the oil is produced. The steam injection releases heat (BTU) to the heavy oil and formation reducing the viscosity of the oil and increasing its mobility for recovery. The sequence of injection of the water and steam is designed to yield the maximum oil recovery per BTU injected by increasing the volume of the formation subjected to heating and increasing the vertical sweep.
- Assignee:
- Mobil Oil Corp.
- Patent Number(s):
- US 4392530
- OSTI ID:
- 5675159
- Country of Publication:
- United States
- Language:
- English
Similar Records
Method of improved oil recovery by simultaneous injection of water with an in-situ combustion process
High sweep efficiency enhanced oil recovery process
In situ recovery process for heavy oil sands
Patent
·
Mon Jan 14 23:00:00 EST 1985
·
OSTI ID:5705000
High sweep efficiency enhanced oil recovery process
Patent
·
Mon Nov 09 23:00:00 EST 1981
·
OSTI ID:5920196
In situ recovery process for heavy oil sands
Patent
·
Tue Oct 09 00:00:00 EDT 1984
·
OSTI ID:6245854