Wells – Processes – In situ combustion
Patent
1974-06-26
1977-05-31
Purser, Ernest R.
Wells
Processes
In situ combustion
166267, E21
Patent
active
040263576
ABSTRACT:
Solid hydrocarbon materials present in subsurface earth formation such as, for example, the coke like residue remaining in a subterranean tar sand deposit which has previously been exploited by controlled oxidation depletion, is converted to a synthesis gas composition by contacting the solid hydrocarbon material with an oxygen enriched gas or essentially pure oxygen and a moderating fluid such as water, steam or carbon dioxide to control the reaction temperature so as to ensure the generation of carbon monoxide and hydrogen within the formation. The oxygen and steam or carbon dioxide may be injected as a mixture or simultaneously by separate injection means, or oxygen may be injected for intervals of time interrupted by brief periods of carbon dioxide, steam or water injection. The effluent is predominantly gaseous carbon monoxide, hydrogen, and lesser amounts of carbon dioxide and methane and, occasionally liquid hydrocarbons. The mixture of carbon monoxide and hydrogen may be utilized directly as a fuel gas, or may be utilized as feed stock for petro chemical manufacturing processes. Carbon dioxide may be separated from the effluent gaseous mixture and recycled with steam into the formation.
REFERENCES:
patent: 2584605 (1952-02-01), Merriam et al.
patent: 2695163 (1954-11-01), Pearce et al.
patent: 2825408 (1958-03-01), Watson
patent: 2839141 (1958-07-01), Walter
patent: 2906337 (1959-09-01), Hennig
patent: 3044545 (1962-07-01), Tooke
patent: 3145772 (1964-08-01), Huitt
patent: 3174543 (1965-03-01), Sharp
patent: 3205944 (1965-09-01), Walton
patent: 3344856 (1967-10-01), Lange
patent: 3360044 (1967-12-01), Lange
patent: 3442332 (1969-05-01), Keith
patent: 3480082 (1969-11-01), Gilliland
patent: 3605890 (1971-09-01), Holm
patent: 3766982 (1973-10-01), Justheim
patent: 3830300 (1974-08-01), Allen
Park Jack H.
Purser Ernest R.
Ries Carl G.
Texaco Exploration Canada Ltd.
Whaley Thomas H.
LandOfFree
In situ gasification of solid hydrocarbon materials in a subterr does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with In situ gasification of solid hydrocarbon materials in a subterr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and In situ gasification of solid hydrocarbon materials in a subterr will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-652199