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Geomorphology and High-Resolution Stratigraphy of Progradational Wave-Dominated Shoreline Deposits: Impact on Reservoir-Scale Facies Architecture

By
Gary J. Hampson
Gary J. Hampson
Department of Earth Science and Engineering, Imperial College London, Exhibition Road, London SW7 2AZ, UK e-mail: g.j.hampson@imperial.ac.uk
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Antonio B. Rodriguez
Antonio B. Rodriguez
Department of Geological Sciences, University of Alabama, Box 870338, Tuscaloosa, Alabama 35487-0338, U.S.A. Present address: Institute of Marine Sciences, University of North Carolina at Chapel Hill, 3431 Arendell Street, Morehead City, North Carolina 28557, U.S.
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Joep E.A. Storms
Joep E.A. Storms
Department of Applied Geology, Delft University of Technology, Stevinweg 1, 2628 CN Delft, The Netherlands
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Howard D. Johnson
Howard D. Johnson
Department of Earth Science and Engineering, Imperial College London, Exhibition Road, London SW7 2AZ, UK
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Craig T. Meyer
Craig T. Meyer
Department of Geological Sciences, University of Alabama, Box 870338, Tuscaloosa, Alabama 35487-0338, U.S.A. Present address: Devon Energy Corporation, 1200 Smith Street, Houston, Texas 77002, U.S.A.
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Published:
January 01, 2008

Abstract

Modern and ancient progradational shoreface-shelf deposits contain a complex physical stratigraphy that is below parasequence scale. This stratigraphy is interpreted to reflect a threefold hierarchy of geomorphic elements: (1) beach ridges, approximating to units bounded by minor facies-discontinuity surfaces, (2) beach-ridge sets, bounded by surfaces across which there is a distinct offset in shoreline trajectory, and (3) progradational wave-dominated shoreline systems, which correspond to parasequences and are bounded by flooding surfaces. All three geomorphic elements and their bounding surfaces are readily reproduced in simple process-response numerical models. A synthesis of modern and ancient datasets and numerical-modeling experiments indicates that the three geomorphic elements and associated stratigraphy can be produced by a number of mechanisms, including changes in wave climate, temporal and spatial variations in sediment supply, and relative sea-level fluctuations.

Models of high-resolution, intra-parasequence stratigraphy can be used to guide correlations in subsurface wireline-log and core datasets, thus improving the definition of reservoir facies architecture and rock-property distributions. The key to robust application of these models is the consistent identification of subtle, high-order stratigraphic surfaces, and their subsequent correlation as shoreface-shelf clinoforms. Data from the Rannoch Formation, Brent Field, U.K. North Sea, are used to illustrate the application of such models, which provide a mechanism to explain anomalous fluid distributions and drainage patterns in the reservoir.

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SEPM Special Publication

Recent Advances in Models of Siliciclastic Shallow-Marine Stratigraphy

Gray J. Hampson
Gray J. Hampson
Department of Earth Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
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Ronald J. Steel
Ronald J. Steel
Department of Geosciences, Jackson School, University of Texas at Austin, Austin, Texas 78712, U.S.A.
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Peter M. Burgess
Peter M. Burgess
Shell International Exploration and Production, Kessler Park 1, P.O. Box 60, 2280 AB Rijswijk, The NetherlandsPresent address: Department of Earth Sciences, Royal Holloway University of London, Egham, Surrey TW20 0EX, UK
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Robert W. Dalrymple
Robert W. Dalrymple
Department of Geological Sciences and Geological Engineering, Queen’s University, Kingston, Ontario K7L 3N6, Canada
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SEPM Society for Sedimentary Geology
Volume
90
ISBN electronic:
9781565763180
Publication date:
January 01, 2008

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