--> Abstract: A Sequential Approach to Reservoir Characterization, by J. Kramers, S. Bachu, D. Cuthiell, and L-P. Yuan; #91012 (1992).
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ABSTRACT: A Sequential Approach to Previous HitReservoirNext Hit Previous HitCharacterizationNext Hit

KRAMERS, JOHN, STEFAN BACHU, DAVE CUTHIELL, and LI-PING YUAN, Alberta Geological Survey, Alberta Research Council, Edmonton, Alberta, Canada

Numerical Previous HitcharacterizationNext Hit for Previous HitreservoirNext Hit simulation requires a sequential approach, starting with a detailed understanding of the geology; pore systems and fluid distributions; defining the Previous HitflowNext Hit Previous HitunitsNext Hit; and finally, scaling-up conventional core analysis permeability and porosity data to the Previous HitflowNext Hit unit or grid block scale. A Lower Cretaceous channel Previous HitreservoirNext Hit in east-central Alberta was used as a case study to develop and apply an integrated, multidisciplinary approach to Previous HitreservoirNext Hit Previous HitcharacterizationNext Hit.

Different methodologies were adopted for the various Previous HitflowNext Hit Previous HitunitsNext Hit, depending on their internal characteristics. Statistical techniques were used for the "relatively uniform" sandy portions of the Previous HitreservoirNext Hit. These ranged from the geometric average for Previous HitflowNext Hit Previous HitunitsNext Hit with no trend in horizontal permeability values, to an integrated average of the trend in permeability values for Previous HitflowNext Hit Previous HitunitsNext Hit where permeability varies with depth. For the heterogeneous Previous HitflowNext Hit Previous HitunitsNext Hit, composed of shale breccia in a sand matrix, the scaling-up of permeability values was carried out by means of fluid Previous HitflowNext Hit simulations through numerical analogs of actual and synthetic core images. General curves were developed that relate shale breccia content and shape to effective permeability. The combination of these methodologies ha resulted in a quantitative Previous HitcharacterizationNext Hit of each Previous HitreservoirNext Hit Previous HitflowNext Hit unit at every well location and provided numerical values to be used as input in Previous HitreservoirNext Hit simulations. This sequential approach to Previous HitreservoirNext Hit Previous HitcharacterizationTop can be applied to a wide variety of siliciclastic reservoirs. (AOSTRA/ARC Joint Geological Research Program.)

 

AAPG Search and Discovery Article #91012©1992 AAPG Annual Meeting, Calgary, Alberta, Canada, June 22-25, 1992 (2009)