Method for bulking full a retort

Details Method for bulking full a retort Method for bulking full a retort

1982-06-01

1984-05-22

Suchfield, George A.

Mining or in situ disintegration of hard material

Tunnel recovery of fluid material

166251, 166259, 299 13, E21B 43247, E21C 4110

Patent

active

044497539

ABSTRACT:
A method for forming an in situ oil shale retort in a subterranean formation containing oil shale is provided. The in situ oil shale retort has top, bottom, and generally vertically extending side boundaries of unfragmented formation and contains a body of expanded oil shale formation that completely fills the retort to its top boundary. The retort is bulked full by explosively expanding a layer above a fragmented permeable mass of formation particles forming part of the body of expanded formation in the retort. The layer is expanded with an available void fraction of no more than about ten percent.

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