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Method of recovering hydrocarbons from oil shale

Patent ·
OSTI ID:5941717
;
A method is described for recovering hydrocarbons from an oil-shale formation by in situ retorting. A well penetrating the formation is heated and gas is injected until a pressure buildup within the well is reached, due to a decrease in the conductivity of naturally occurring fissures within the formation. The well is then vented, in order to produce spalling of the walls. This results in the formation of an enlarged cavity containing rubberized oil shale. A hot gas then is passed through the rubberized oil shale in order to retort hydrocarbons and these hydrocarbons are recovered from the well. (11 claims)
Assignee:
Mobil Oil Corp.
Patent Number(s):
US 3542131
OSTI ID:
5941717
Country of Publication:
United States
Language:
English

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Related Subjects

04 OIL SHALES AND TAR SANDS
040401* -- Oil Shales & Tar Sands-- In Situ Methods
True & Modified
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
DECOMPOSITION
ENERGY SOURCES
ENGINEERING
ENHANCED RECOVERY
FLUID INJECTION
FOSSIL FUELS
FUELS
GAS INJECTION
IN-SITU PROCESSING
IN-SITU RETORTING
MATERIALS
MINERAL OILS
NUCLEAR REACTIONS
OIL SHALES
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PROCESSING
PYROLYSIS
RECOVERY
RESERVOIR ENGINEERING
RESERVOIR PRESSURE
RETORTING
SHALE OIL
SPALLATION
THERMOCHEMICAL PROCESSES