Perturbation of Fault Network Building on a Stratigraphic Grid.

@inproceedings{P04_Zhang,
 abstract = { Structural uncertainty on 3-dimensional reservoir models has a significant impact on the evaluation of
hydrocarbon in place and the subsequent estimation of the reserves. It is difficult to cope with such an
uncertainty, and hence en effective approach to edit or update existing reservoir models is needed. Such
direct editing approaches are very appealing since they remove the need for a complete and tedious
updating. In this paper, we apply the theory of simple constrained deformation (Scodef) to update the
geometry of a Stratigraphic Grid (SGrid) so as to account for a set of displacement vectors, which are
defined on a set of geological surfaces. For instance, these vectors may be available on fault’s surfaces to
stochastically perturb the fault network’s geometry. Since it is not easy to ensure that the displacement
vectors are consistent, we propose using equation of continuity to constrain the updated model. The result
shows that the updated stratigraphic grid honors the displacement field as much as possible while
preserving consistent geometric contacts between faults/horizons. This approach was implemented as a
Gocad plugin named “EasyFault” to assist reservoir engineers in updating a stratigraphic model by
varying the fault network’s geometry. },
 author = { Zhang, Ling AND Caumon, Guillaume },
 booktitle = { Proc. 26th Gocad Meeting, Nancy },
 title = { Perturbation of Fault Network Building on a Stratigraphic Grid. },
 year = { 2006 }
}