Staggered in-time coupling of fluid flow and geomechanical
deformation modeling for 4D seismic
Susan Minkoff
Department of Mathematics and Statistics,
University of Maryland, Baltimore County
Thursday, March 28, 2002 15:00-16:00,
Room 145, NIST North (820)
Gaithersburg
Thursday, March 28, 2002 13:00-14:00,
Room 4511
Boulder
Abstract:
Time-lapse seismic feasibility studies for compactible reservoirs
such as Ekofisk in the North Sea require coupled flow simulation and
geomechanical deformation modeling. We present an algorithm for
staggered-in-time, 2-way coupling of flow and geomechanics and indicate
what impact the coupled code has on calculation of seismic properties.
Modifications to the geomechanics code allow changes in
pore pressure to be included in the total stress calculation. The
geomechanics code produces volumetric strain-induced porosity and
permeability updates for the flow simulator. We validate our
loosely-coupled
simulator against a fully-coupled flow and mechanics simulator from
ARCO.
Contact: A. J. KearsleyNote: Visitors from outside NIST must contact
Robin Bickel; (301) 975-3668;
at least 24 hours in advance.
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