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The AAPG/Datapages Combined Publications Database
AAPG Special Volumes
Abstract
Geostatistical Simulation of Reservoir Porosity Distribution from 3-D, 3-C Seismic Reflection and Core Data in the Lower Nisku Formation at Joffre Field, Alberta
ABSTRACT
Rock properties such as lithology and porosity can be obtained from comparative P- and S-wave traveltimes or velocities measured from multicomponent (3-D, 3-C) seismic reflection data. A 3-D, 3-C seismic reflection data survey was acquired by the Colorado School of Mines Reservoir Characterization Project at Joffre field, Alberta, to map the complex porosity distribution in a shelf carbonate reservoir. Velocity ratio analysis, of compressional velocity to shear velocity (Vp/Vs), indicates a linear correlation with porosity in the Devonian Nisku reservoir. Vertical porosity distribution at wells and horizontal porosity distribution derived from seismic reflection data are used to map 3-D porosity distribution using geostistical methods. The results show enhanced mapping of porosity distribution and better definition of the lateral limits of the reservoir. These results will assist in reservoir simulation of this field.
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