Wells – Processes – Heating – cooling or insulating
Patent
1979-06-12
1981-01-20
Novosad, Stephen J.
Wells
Processes
Heating, cooling or insulating
166 59, 166260, E21B 4324, F23D 1502
Patent
active
042457017
ABSTRACT:
A method and apparatus for conducting such method are disclosed for igniting a fragmented permeable mass of formation particles in an in situ oil shale retort. The method is conducted by forming a hole through unfragmented formation to the fragmented mass. An oxygen-containing gas is introduced into the hole. A fuel is introduced into a portion of the hole spaced apart from the fragmented mass. The fuel and oxygen-containing gas mix forming a combustible mixture which is ignited for establishing a combustion zone in a portion of the hole spaced apart from the fragmented mass. The hot gas generated in the combustion zone is conducted from the hole into the fragmented mass for heating a portion of the fragmented mass above an ignition temperature of oil shale.
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Novosad Stephen J.
Occidental Oil Shale Inc.
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