Impact of uncertainties in rock mechanical properties on subsidence evaluation
Authors
T.M. Hu and F. Fournier and J.J. Royer and C. Joseph
Journal/Article/Conference
Proc. IAMG 2006
Abstract
A methodology based on embedded stochastic simulations is proposed to
propagate the large uncertainties usually attached to the rock
mechanical properties down to the evaluation of the subsidence risk.
First, the uncertainties on the lithology are accounted for through
sequential indicator simulations. Second, the rock mechanical
properties are simulated conditionally to the previously generated
lithologies, after careful calibration of rock mechanical property
distributions from log and core data. Finally, the mechanical
computation is performed for each stochastic realization: it is
based on a simplified 1D poroelastic model under oedometric
conditions, since it provides conservative results. The methodology
is demonstrated on a specific field for which it is shown that the
subsidence evaluation is mainly impacted by the uncertainties on the
lithology within the reservoir.
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BibTeX Reference
@inproceedings{Royer06IAMGa,
| AUTHOR
|
=
{T.M. Hu and F. Fournier and J.J. Royer and C. Joseph}
,
|
| TITLE
|
=
{Impact of uncertainties in rock mechanical properties on subsidence evaluation},
|
| BOOKTITLE
|
=
{Proc. IAMG 2006},
|
| YEAR
|
=
{2006},
|
}
