Static and dynamic connectivity in bed-scale models of faulted and unfaulted turbidites

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Show simple item record Manzocchi, Tom Walsh, John J. Tomasso, Mark Strand, Julian Childs, Conrad Haughton, Peter D. W. 2011-07-20T16:11:34Z 2011-07-20T16:11:34Z The Geological Society of London 2007 en 2007
dc.description.abstract A range of unfaulted and faulted bed-scale models with sheet-like bed geometries have been built and analysed in terms of static bed connectivity and fractional permeability assuming permeable sands and impermeable shales. The models are built using a new method which allows amalgamation ratio to be included explicitly as model input and this property, rather than net:gross ratio, is found to be the dominant control on inter-bed connectivity. The connectivity of faulted sequences is much more complex and is dominated by interactions of variables. A comprehensive modelling suite illustrates these results and highlights the extremely rare combinations of circumstances in which faulted sequences have lower connectivities than their unfaulted sedimentological equivalents, irrespective of whether fault rock properties are included or not. In general, models containing stochastically placed shale smears associated with each faulted shale horizon are better connected than if deterministic Shale Gouge Ratio cut-offs are applied. Despite the complex interactions between geological input and bed-scale connectivity, the flow properties of a system are controlled by only three geometrical, rather than geological, variables describing connectivity, anisotropy and resolution. If two different faulted or unfaulted systems have identical values of these three variables they will have the same flow properties. en
dc.description.sponsorship Not applicable en
dc.format.extent 3552369 bytes
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Geological Society, London en
dc.relation.ispartof Jolley, S. J. et al (eds.). Structurally complex reservoirs en
dc.subject Turbidites en
dc.subject Connectivity en
dc.subject Faults en
dc.subject Bed-scale en
dc.subject.lcsh Turbidites en
dc.subject.lcsh Faults (Geology) en
dc.title Static and dynamic connectivity in bed-scale models of faulted and unfaulted turbidites en
dc.type Book Chapter en
dc.internal.availability Full text available en
dc.status Peer reviewed en
dc.identifier.doi 10.1144/SP292.18
dc.neeo.contributor Manzocchi|Tom|aut|
dc.neeo.contributor Walsh|John J.|aut|
dc.neeo.contributor Tomasso|Mark|aut|
dc.neeo.contributor Strand|Julian|aut|
dc.neeo.contributor Childs|Conrad|aut|
dc.neeo.contributor Haughton|Peter D. W.|aut|
dc.description.othersponsorship Amerada Hess, BG Energy, BP Exploration, ConocoPhillips, Kerr-McGee North Sea, Shell, Statoil and Total en

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