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U.S. Department of Energy
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Application of laboratory results to the design of a high yield VMIS oil shale retort

Conference ·
OSTI ID:6431951
In situ oil shale retorts have typically been designed to process a rubble bed having uniform cross-sectional rubble properties. Edge effects during rock fragmentation commonly produce increased void at the perimeter of these low-void retorts. Previous laboratory and field results have demonstrated this void variation normal to the direction of flow causes non-uniform retort front velocities that result in significantly lower oil yield. It is unlikely that process control parameters (e.g. multiple injection points, steam, etc.) can provide any significant yield improvement in these non uniform retorts. Any large improvement would come from modified rubblization concepts. This paper describes a modification to the retort blast design to achieve a uniform retorting front velocity in rubble with non-uniform properties (void fraction and particle size).
Research Organization:
Sandia National Labs.
DOE Contract Number:
AC04-76DP00789
OSTI ID:
6431951
Report Number(s):
CONF-861146-
Country of Publication:
United States
Language:
English