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Development and testing of spent shale grouts for backfilling abandoned in-situ oil shale retorts

Journal Article · · J. Pet. Technol.; (United States)
DOI:https://doi.org/10.2118/11441-PA· OSTI ID:6160198
Grouts based on Lurgi spent shale were developed for backfilling in-situ oil shale retorts. Lignosulfonate fluidizer (0.25%) was used to achieve adequate fluidity. Addition of 10% fly ash increased the strength of the grouts. Permeabilities of the grouts decreased at higher confining pressures and were low enough to reduce leaching by groundwater.
Research Organization:
Lawrence Berkeley Laboratory, Univ. of California
OSTI ID:
6160198
Journal Information:
J. Pet. Technol.; (United States), Journal Name: J. Pet. Technol.; (United States) Vol. 36:7; ISSN JPTJA
Country of Publication:
United States
Language:
English