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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 Previous HitsamplingNext Hit) and one "core" sample (exhaustive 2-mm-spaced Previous HitsamplingTop), 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.

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