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U.S. Department of Energy
Office of Scientific and Technical Information

Preparation and injection of grout from spent shale for stabilization of abandoned in-situ oil shale retorts

Conference ·
OSTI ID:6038601
A procedure has been developed for stabilizing abandoned in-situ oil shale retorts by means of high-temperature treatment of surface-processed shale, followed by grinding, mixing with water, and injection underground. Laboratory results indicate that abandoned in-situ retorts can be made strong enough to prevent subsidence, and sufficiently impermeable to greatly reduce groundwater flow. The underground injection also reduces the amount of spent-shale disposal on the surface.
Research Organization:
California Univ., Livermore (USA). Lawrence Livermore Lab.
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
6038601
Report Number(s):
UCRL-82455; CONF-790913-6
Country of Publication:
United States
Language:
English