Abstract
The Lower Cretaceous sandstone reservoirs of southern Alberta, Canada, are extremely difficult to develop due to abrupt variations in sandstone and shale distribution. Such reservoirs occur intermittently throughout the study area near Taber, Alberta, where estimated recoverable reserves are approximately 9.75 million bbl. In February 1984, three-dimensional seismic data were recorded for a 4-km/sup 2/ area to delineate one of these reservoirs. Data were collected with a uniform bin size of 20 x 20 m and processed for amplitude and phase compensation, spectral whitening, velocity and static correlations, and poststack three-dimensional migration. The seismic lithologic modeling process (SLIM) was then applied to derive a thin-layer interpretation of the migrated data. The process was loosely constrained by parameters from one of six boreholes located within the survey area. The derived model showed remarkable consistency with the remaining five boreholes and provided a reasonable basis for estimating gross reservoir pore volume, hydrocarbon distribution, and reserves in place. Development drilling based on this model is in progress.
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