In situ retorting with high temperature oxygen supplying gas
Liquid and gaseous products are recovered from an in situ oil shale retort containing a fragmented permeable mass of formation particles by establishing a combustion zone in the fragmented permeable mass of particles. The combustion zone is advanced through the fragmented mass of particles by introducing a retort inlet mixture comprising oxygen into the retort on the trailing side of the combustion zone. The retort inlet mixture is maintained at a sufficiently high temperature of at least 1150/sup 0/ F so that the temperature of at least a portion of the fragmented mass on the trailing side of the combustion zone is maintained at a temperature of at least 1150/sup 0/ F. For increasing the yield of hydrocarbon products obtained from the retort.
- Assignee:
- Occidental Oil Shale Inc
- Patent Number(s):
- US 4192381
- OSTI ID:
- 5537481
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
040401* -- Oil Shales & Tar Sands-- In Situ Methods
True & Modified
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COMBUSTION
DECOMPOSITION
ELEMENTS
ENERGY SOURCES
ENHANCED RECOVERY
FOSSIL FUELS
FUELS
HYDROCARBONS
IN-SITU COMBUSTION
IN-SITU PROCESSING
IN-SITU RETORTING
MATERIALS
MINERAL OILS
NONMETALS
OIL SHALES
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDATION
OXYGEN
PROCESSING
RECOVERY
RETORTING
SHALE OIL
THERMAL RECOVERY
THERMOCHEMICAL PROCESSES