Fault uncertainty and ranking in tetrahedral models
in: Proc. 27th Gocad Meeting, Nancy
Abstract
Geometric uncertainty linked to faults is not easy to take into account when building reservoir
models. A small change in geometry can have a considerable impact on fluid flow simulations because
faults facilitate flow or act as barriers. Building faulted models is often a long and complicated
process, so studying the impact of fault uncertainty is not yet part of the regular reservoir studying
workflow. The method explained in this paper is to use small perturbation on fault geometry in
tetrahedral grids to create several models from the initial model. Perturbations are computed as
scalar fields on the fault surfaces and the tetrahedral model is modified to take these perturbations
into account while maintaining geometrical and geological consistency. Several models can thus be
created quickly with slightly perturbed fault geometry. The models are then ranked according to
several criteria.
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BibTeX Reference
@inproceedings{P104_Tertois, abstract = { Geometric uncertainty linked to faults is not easy to take into account when building reservoir models. A small change in geometry can have a considerable impact on fluid flow simulations because faults facilitate flow or act as barriers. Building faulted models is often a long and complicated process, so studying the impact of fault uncertainty is not yet part of the regular reservoir studying workflow. The method explained in this paper is to use small perturbation on fault geometry in tetrahedral grids to create several models from the initial model. Perturbations are computed as scalar fields on the fault surfaces and the tetrahedral model is modified to take these perturbations into account while maintaining geometrical and geological consistency. Several models can thus be created quickly with slightly perturbed fault geometry. The models are then ranked according to several criteria. }, author = { Tertois, Anne-Laure AND Caumon, Guillaume AND Titeux, Marc-Olivier }, booktitle = { Proc. 27th Gocad Meeting, Nancy }, title = { Fault uncertainty and ranking in tetrahedral models }, year = { 2007 } }