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3 - Grids in Subsurface Modeling

from Part I - Geological Models and Grids

Published online by Cambridge University Press:  22 July 2019

Knut-Andreas Lie
Knut-Andreas Lie
Affiliation:
SINTEF, Norway
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Summary

The chapter explains how you can generate grid models to represent subsurface reservoirs. We outline a number of elementary grid types: structured/rectilinear grids, fictitious domains, Delaunay triangulations, and Voronoi grids. We then explain stratigraphic grids that are commonly used to model real subsurface formations, including in particular corner-point and perpendicular bisector (PEBI) grids. We explain how such grids are represented in MRST using a data structure for general unstructured grids, and we discuss how to compute geometric properties like volumes, face areas, face normals, etc. We end the chapter by presenting an overview of alternative gridding techniques, including composite grids, multiblock grids, and control-point and boundary conformal grids.

Keywords

unstructured gridsDelaunay tessellationVoronoi gridsmesh generatorsstratigraphic gridscorner-point gridsnon-neighboring connectionsPEBI gridsdata structurescomposite gridsmultiblock gridsMRST
Type
Chapter
Information
An Introduction to Reservoir Simulation Using MATLAB/GNU Octave
User Guide for the MATLAB Reservoir Simulation Toolbox (MRST)
 , pp. 55 - 110
Publisher: Cambridge University Press
Print publication year: 2019
Creative Commons
Creative Common License - CCCreative Common License - BYCreative Common License - NCCreative Common License - ND
This content is Open Access and distributed under the terms of the Creative Commons Attribution licence CC-BY-NC-ND 4.0 https://creativecommons.org/cclicenses/

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