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Chapter from:
AAPG Memoir 71 : Reservoir Characterization-Recent Advances
Edited by Richard A. Schatzinger and John F. Jordan
Copyright 
1999 by The American Association of
Petroleum Geologists. All rights reserved.
Memoir 71, Chapter 18: The Ardross Reservoir Gridblock Analog: Sedimentology, Statistical
Representivity, and Flow Upscaling , by Philip Ringrose, Gillian Pickup, Jerry Jensen,
and Margaret Forrester , Pages 265 - 275
Chapter 18
The Ardross Reservoir Gridblock Analog:
Sedimentology, Statistical Representivity, and Flow Upscaling
Philip Ringrose1
Gillian Pickup
Jerry Jensen2
Margaret Forrester3
Heriot-Watt University
Edinburgh, Scotland, U.K.
1Now at
Statoil Research Centre, Rotvoll, Trondheim, Norway
2Now
at Petroleum Engineering Department, Texas A&M University, College Station, TX
77843-3116, USA
3Now
at Edinburgh Petroleum Systems Ltd., Research Park, Riccarton, Edinburgh, Scotland, UK
ABSTRACT
We have used a reservoir gridblock-size outcrop (10 X 100 m) of
fluvio-deltaic sandstones to evaluate the importance of internal heterogeneity for a
hypothetical waterflood displacement process. Using a dataset based on probe permeameter
measurements taken from two vertical transects representing "wells" (5 cm
sampling) and one "core" sample (exhaustive 2-mm-spaced sampling), we evaluate
the permeability variability at different lengthscales, the correlation characteristics
(structure of the variogram function), and importance of volume and data support. We then
relate these statistical measures to the sedimentology.
