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Method for establishing a combustion zone in an in situ oil shale retort

Patent ·
OSTI ID:5965072
; ;

A method for retorting oil shale in an in situ oil shale retort includes the steps of excavating a void in a subterranean formation containing oil shale and placing combustible material in the void adjacent an ignition situs. Formation is then explosively expanded toward the void to form a retort containing a fragmented permeable mass of formation particles containing oil shale, the top layer of the fragmented mass adjacent an ignition situs containing such combustible material. The combustible material is then ignited for establishing a combustion zone in the retort.

Assignee:
Occidental Oil Shale, Inc.
Patent Number(s):
US 4147389
OSTI ID:
5965072
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
COMBUSTION
COMMINUTION
ENERGY SOURCES
EXPLOSIVE FRACTURING
FOSSIL FUELS
FRACTURING
FUELS
IN-SITU COMBUSTION
IN-SITU PROCESSING
IN-SITU RETORTING
MODIFIED IN-SITU PROCESSES
OIL SHALES
OXIDATION
PROCESSING
RETORTING
THERMOCHEMICAL PROCESSES