Impact of uncertainties in rock mechanical properties on subsidence evaluation - Université de Lorraine Access content directly
Conference Papers Year : 2006

Impact of uncertainties in rock mechanical properties on subsidence evaluation

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.
No file

Dates and versions

hal-04062202 , version 1 (07-04-2023)

Identifiers

  • HAL Id : hal-04062202 , version 1

Cite

Tianmeng Hu, Frédérique Fournier, Jean-Jacques Royer, C. Joseph. Impact of uncertainties in rock mechanical properties on subsidence evaluation. International Association for Mathematical Geosciences 10th Annual Conference, IAMG, 2006, Liège (Belgique), Belgium. ⟨hal-04062202⟩
13 View
0 Download

Share

Gmail Facebook X LinkedIn More