... mechanisms, e.g. rate-dependent effects. DA approaches, based on the Ensemble Kalman Filter (EnKF) (Kalman, 1960), have been already used in the oil and gas industry for history match purposes and, more recently, for the geomechanical characterization of deep rocks (Fokker et al., 2016, Zoccarato et al...

... machine learning Upstream Oil & Gas numerical method Reservoir Characterization Fluid Dynamics international journal application vector Artificial Intelligence FOM pod model-order reduction reduction Computation snapshot algorithm ensemble subspace reservoir geomechanics...

...-overlapping non-pay regime. The coupled system for the state is formulated within a variational monolithically-coupled framework. We propose an iterative stochastic ensemble method (ISEM) to estimate material coefficients such as permeability coefficients in the pay-zone or Lamé parameters in the non-pay...