
TY  - JOUR
A1  - Daily, W. 
T1  - Underground oil-shale retort monitoring using geotomograph
JF  - Exploration Geophysics
JO  - Explor. Geophys.
Y1  - 1984
VL  - 15
IS  - 3
SP  - 194
EP  - 194
KW  - 
UR  - https://doi.org/10.1071/EG984194B 
N2  - Geophysical tomographs (geotomographs) were made of two underground oil-shale retorts: (1) the Occidental Oil Shale Inc. miniretort constructed for ignition tests at the demonstration mine at Logan Wash, Colorado; and (2) the Geokinetics Oil Shale Inc. Retort 25 near Vernal, Utah. These experiments demonstrate that geotomography may be a valuable diagnostic tool for underground oil-shale retorting processes. At the Geokinetics in-situ retort, the technique delineated the zones of high permeability in a cross-section of the retort. At the Occidental modified in-situ miniretort, the technique imaged the high-temperature zone of the retort with a spatial resolution of about 2 m, and showed its temporal development over a period of eleven days. 
ER  -

