• An Augmented Lagrangian Method for Optimal Control of Continuous Time DAE Systems 

      Aguiar, Marco Aurelio Schmitz de; Camponogara, Eduardo; Foss, Bjarne Anton (Conference object; Journal article; Peer reviewed, 2016)
      This works presents an algorithm for solving optimal control problems (OCP) of differential algebraic equations (DAE) based on the augmented Lagrangian method. The algorithm relaxes the algebraic equations and solves a ...
    • An Augmented Lagrangian for Optimal Control of DAE Systems: Algorithm and Properties 

      Aguiar, Marco Aurelio; Camponogara, Eduardo; Foss, Bjarne Anton (Peer reviewed; Journal article, 2021)
      This article proposes a relax-and-discretize approach for optimal control of continuous-time differential algebraic systems. It works by relaxing the algebraic equations and penalizing the violation into the objective ...
    • Contributions to production optimization of oil reservoirs 

      Codas Duarte, Andrés (Doctoral thesis at NTNU;, Doctoral thesis, 2016)
      This thesis covers methods for optimization of oil production in three time-scales. In the long-term perspective, years, it is desired to maximize the economic return of the field operation, or alternatively, it is desired ...
    • Echo State Networks for data-driven downhole pressure estimation in gas-lift oil wells 

      Antonelo, Eric; Camponogara, Eduardo; Foss, Bjarne Anton (Journal article; Peer reviewed, 2017)
      Process measurements are of vital importance for monitoring and control of industrial plants. When we consider offshore oil production platforms, wells that require gas-lift technology to yield oil production from low ...
    • Introducing Approximate Well Dynamics into Production Optimization for Operations Scheduling 

      Hulse, Eduardo O.; Silva, Thiago Lima; Camponogara, Eduardo; Rosa, Vinicius R.; Vieira, Bruno F.; Furtado, Alex Teixeira (Journal article; Peer reviewed, 2020)
      Most of the literature on short-term production optimization concerns the computation of optimal system settings for steady-state operations. Such methodologies are applicable when the scales of time are faster than reservoir ...
    • Network-Constrained Production Optimization by Means of Multiple Shooting 

      Silva, Thiago Lima; Codas, Andrés; Stanko, Milan; Camponogara, Eduardo; Foss, Bjarne Anton (Journal article; Peer reviewed, 2019)
      A methodology is proposed for the production optimization of oil reservoirs constrained by gathering systems. Because of differences in scale and simulation tools, production optimization involving oil reservoirs and ...