Modified in-situ retorting results of two field retorts
Rio Blanco Oil Shale Company (RBOSC) has designed, constructed and processed two Modified In Situ (MIS) retorts at Tract C-a using newly developed techniques for rubbling, ignition and operation through surface drill holes. Retort Zero was ignited in October 1980, nominal dimensions 30' x 30' x 165' (9 x 9 x 50 meters), oil yield was 1,876 barrels (298,300 liters). Retort One was ignited June 1981, nominal dimensions 60' x 60' x 400' (18 x 18 x 122 meters), oil yield was 24,444 barrels (3,886,000 liters). RBOSC's MIS method was proved very successful; ignition was achieved in less than 36 hours, average front advance rates were 2.7 and 3.0 ft/day (.8 and .9 meter/day) and oil yields were 68 percent of Fischer Assay, close to model predictions for both retorts. This paper describes conceptually the MIS method developed by RBOSC and give the process results. Details of how the results were achieved are proprietary.
- Research Organization:
- Rio Blanco Oil Shale Co.
- OSTI ID:
- 5323422
- Report Number(s):
- CONF-820927-
- Journal Information:
- Soc. Pet. Eng. AIME, Pap.; (United States), Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Vol. SPE10998; ISSN SEAPA
- 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 ANALYSIS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMICAL REACTORS
COMBUSTION KINETICS
CONSTRUCTION
DECOMPOSITION
DESIGN
DIMENSIONS
DISTILLATION EQUIPMENT
DRILL CORES
ENERGY SOURCES
EQUIPMENT
FIELD TESTS
FORECASTING
FOSSIL FUELS
FUELS
IGNITION
IN-SITU PROCESSING
IN-SITU RETORTING
KINETICS
MATERIALS
MODIFIED IN-SITU PROCESSES
OIL SHALES
OIL YIELDS
OPERATION
PROCESSING
PRODUCTION
QUALITATIVE CHEMICAL ANALYSIS
REACTION KINETICS
RETORTING
RETORTS
TESTING
YIELDS