search

equinor / ert

ERT - Ensemble based Reservoir Tool - is designed for running ensembles of dynamical models such as reservoir models, in order to do sensitivity analysis and data assimilation. ERT supports data assimilation using the Ensemble Smoother (ES), Ensemble Smoother with Multiple Data Assimilation (ES-MDA) and Iterative Ensemble Smoother (IES).
https://ert.readthedocs.io/en/latest/
GNU General Public License v3.0
99 stars 104 forks source link

MCMC roadmap #1107

Open markusdregi opened 3 years ago

markusdregi commented 3 years ago

Beyond the scope of https://github.com/equinor/ert/milestone/21, an MCMC implementation should contain...

Priors:

Stochastic proxy: The assumption of deterministic forward model is often violated in the case of stochastic forward models. To compensate one can evaluate the same realisation multiple times and then condition to the mean of the responses and add the variation to the covariance matrix.

Plotting/diagnostics: Plots are needed.

Evaluate simple proxy generation We should start the MVP by generating the proxy functions using an established implementation and run it locally. However, whether this is sufficient on a large case needs to be evaluated down the road.

markusdregi commented 3 years ago

Relevant paper: https://www.onepetro.org/conference-paper/SPE-113390-MS