Oil recovery process utilizing aromatic solvent and steam

Patent · Tue Jan 17 04:00:00 EST 1978

OSTI ID:5325650

Allen, J C

Petroleum may be recovered from viscous petroleum containing formations including tar sand deposits by first creating a fluid communication path in the formation, followed by injecting via an injection well an aromatic solvent such as benzene, saturated with carbon dioxide at the injection pressure into the fluid communication path, following the injection of the solvent with the injection of an oil-displacing fluid such as hot water, steam, or superheated steam and recovering oil from the formation via a production well. If desired, the oil displacing fluid may include a solubilizing agent, a surfactant or an alkaline agent.

• Assignee: Texaco Inc.
• Patent Number(s): US 4068716
• OSTI ID: 5325650
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040401* -- Oil Shales & Tar Sands-- In Situ Methods
True & Modified
AROMATICS
BENZENE
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
FLUID INJECTION
GEOLOGIC DEPOSITS
HYDROCARBONS
IN-SITU PROCESSING
OIL SAND DEPOSITS
ORGANIC COMPOUNDS
ORGANIC SOLVENTS
OXIDES
OXYGEN COMPOUNDS
PROCESSING
SATURATION
SOLVENTS
STEAM INJECTION