Browsing Institutt for geovitenskap og petroleum by Journals "Computational Geosciences"

Now showing items 1-7 of 7

    • Automated porosity estimation using CT-scans of extracted core data 

      Chawshin, Kurdistan; Berg, Carl Fredrik; Varagnolo, Damiano; Lopez, Olivier (Peer reviewed; Journal article, 2022)
      Estimation of porosity at a millimeter scale would be an order of magnitude finer resolution than traditional logging techniques. This enables proper description of reservoirs with thin layers and fine scale heterogeneities. ...

    • Derivative-free trust region optimization for robust well control under geological uncertainty 

      Silva, Thiago Lima; Bellout, Mathias; Giuliani, Caio M.; Camponogara, Eduardo; Pavlov, Alexey (Peer reviewed; Journal article, 2022)
      A Derivative-Free Trust-Region (DFTR) algorithm is proposed to solve the robust well control optimization problem under geological uncertainty. Derivative-Free (DF) methods are often a practical alternative when gradients ...

    • Efficient flow diagnostics proxies for polymer flooding 

      Krogstad, Stein; Lie, Knut-Andreas; Nilsen, Halvor Møll; Berg, Carl Fredrik; Kippe, Vegard (Journal article; Peer reviewed, 2017)
      Flow diagnostics refers to a family of numerical methods that within a few seconds can compute visually intuitive quantities illuminating flow patterns and well connections for full 3D reservoir models. The starting point ...

    • Efficient well placement optimization under uncertainty using a virtual drilling procedure 

      Kristoffersen, Brage Strand; Silva, Thiago Lima; Bellout, Mathias; Berg, Carl Fredrik (Peer reviewed; Journal article, 2021)
      An Automatic Well Planner (AWP) is used to efficiently adjust pre-determined well paths to honor near-well properties and increase overall production. AWP replicates modern geosteering decision-making where adjustments to ...

    • Gradient-based production optimization with simulation-based economic constraints 

      Volkov, Oleg; Bellout, Mathias (Journal article; Peer reviewed, 2017)
      In reservoir management, production optimization is performed using gradient-based algorithms that commonly rely on an adjoint formulation to efficiently compute control gradients. Often, however, economic constraints are ...

    • Joint Optimization of Oil Well Placement and Controls 

      Bellout, Mathias Rodrigez; Ciaurri, David Echeverria; Durlofsky, Louis J.; Foss, Bjarne Anton; Kleppe, Jon (Journal article; Peer reviewed, 2012)
      Well placement and control optimization in oil field development are commonly performed in a sequential manner. In this work, we propose a joint approach that embeds well control optimization within the search for optimum ...

    • Well placement optimization subject to realistic fielddevelopment constraints 

      Jesmani, Mansoureh; Bellout, Mathias; Hanea, Remus Gabriel; Foss, Bjarne Anton (Journal article; Peer reviewed, 2016)