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Fracture analysis of outcrop analogues to support modelling of the subseismic domain in carbonate reservoirs, south-central Pyrenees

By
Jon Gutmanis
Jon Gutmanis
GeoScience Ltd, Falmouth Business Park, Bickland Water Road, Falmouth, Cornwall TR11 4SZ, UKCatalonia Geological Research, 25620 Tremp, Catalonia, Spain
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Lluís Ardèvol i Oró
Lluís Ardèvol i Oró
Catalonia Geological Research, 25620 Tremp, Catalonia, SpainGeoplay Pyrenees Ltd, 6 Nerets, 25630 Talarn, Catalonia, Spain
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Davinia Díez-Canseco
Davinia Díez-Canseco
Catalonia Geological Research, 25620 Tremp, Catalonia, SpainDepartamento de Estratigrafía, Universidad Complutense de Madrid-IGEO, 2 José Antonio Novais, 28040 Madrid, Spain
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Lynda Chebbihi
Lynda Chebbihi
GeoScience Ltd, Falmouth Business Park, Bickland Water Road, Falmouth, Cornwall TR11 4SZ, UK
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Abdullah Awdal
Abdullah Awdal
GeoScience Ltd, Falmouth Business Park, Bickland Water Road, Falmouth, Cornwall TR11 4SZ, UK
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Alexander Cook
Alexander Cook
GeoScience Ltd, Falmouth Business Park, Bickland Water Road, Falmouth, Cornwall TR11 4SZ, UK
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Published:
January 01, 2018

Abstract

The productivity of wells in fractured reservoirs depends, in terms of rate and sustainability, on the heterogeneity and variable connectivity of the open fracture network. Outcrop studies in Cretaceous carbonates from the Catalan Pyrenees illuminate this issue and reveal the degree of uncertainty associated with the interpretation of fracture data from wells and seismic. Three examples are chosen to provide verifiable data, parameters and concepts which can be applied to the workflow of fractured reservoir characterization. We discuss fracture properties and distributions in the subseismic volume, the coupled behaviour between litho-mechanical properties, in situ stress and fracturing, and the permeability properties of fault damage zones. The outcrops also highlight some of the difficulties involved in constructing static reservoir models and evaluating fracture interpretations derived from software-based techniques such as surface curvature.

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Contents

Geological Society, London, Special Publications

Subseismic-Scale Reservoir Deformation

M. Ashton
M. Ashton
Badley Ashton America Inc., USA
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S. J. Dee
S. J. Dee
BP Exploration and Operating Company Limited, UK
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O. P. Wennberg
O. P. Wennberg
Statoil, Norway
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The Geological Society of London
Volume
459
ISBN electronic:
9781786203403
Publication date:
January 01, 2018

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