Geochron: a framework to estimate fracturation of deformed sedimentary layers
Authors
J.-J. Royer and J.-L. Mallet and R. Cognot and R. Moyen
Journal/Article/Conference
Proc. IAMG 2006
Abstract
A full-3D balanced restoration technique is used to estimate the fracturation of a
deformed sedimentary layer using a Geochron parametric
representation of the ante-deformed geological structure. The
displacements and the strains which have affected the geological
formation are computed assuming small deformations and using the
elastic solid theory of continuous media. In simple cases such as
thin plates, this new approach is in agreement with results
predicted by the theory. Strain tensor invariants (dilatation
coefficient, principal strains, etc.) coupled with mechanical
properties of rock types are used to characterize the distribution
of fracture orientations. It also gives useful strain parameters
that can be related to the observed faults. This general theoretical
framework provides solutions to complex problems such as the
determination of strains resulting from tectonic events and for
predicting faulted zones in reservoirs. The method is applied on the
Split Mountain Anticline Case Study (Utah, USA), a natural
outcropped clastic reservoir. Observed fractures on the field are in
good agreement with the ones predicted from the proposed restoration
methodology. The final goal of this research is to improve oil and
gas recovery in fractured reservoirs by a better estimation of the
permeability tensor.
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BibTeX Reference
@inproceedings{Royer06IAMGb,
| AUTHOR
|
=
{J.-J. Royer and J.-L. Mallet and R. Cognot and R. Moyen}
,
|
| TITLE
|
=
{Geochron: a framework to estimate fracturation of deformed sedimentary layers},
|
| BOOKTITLE
|
=
{Proc. IAMG 2006},
|
| YEAR
|
=
{2006},
|
}
