Browsing NTNU Open by Author "Bellout, Mathias"
Now showing items 1-20 of 20
-
A reduced random sampling strategy for fast robust well placement optimization
Jesmani, Mansoureh; Jafarpour, Behnam J.; Bellout, Mathias; Foss, Bjarne Anton (Journal article; Peer reviewed, 2019)Model-based decision-making in oilfield development often involves hundreds of computationally demanding reservoir simulation runs. In particular, well placement optimization under uncertainty in the geologic representation ... -
Application of Simultaneous Perturbation Stochastic Approximation to Well Placement Optimization under Uncertainty
Jesmani, Mansoureh; Jafarpour, Behnam J.; Bellout, Mathias; Hanea, Remus Gabriel; Foss, Bjarne Anton (Chapter, 2016) -
Collaborative optimization by shared objective function data
Angga, I Gusti Agung Gede; Bellout, Mathias; Bergmo, Per Eirik Strand; Slotte, Per Arne; Berg, Carl Fredrik (Peer reviewed; Journal article, 2022)This article presents a collaborative algorithmic framework that is effective for solving a multi-task optimization scenario where the evaluation of their objectives consists of two parts: The first part involves a common ... -
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 ... -
Effect of CO2 tax on energy use in oil production: waterflooding optimization under different emission costs
Angga, I Gusti Agung Gede; Bellout, Mathias; Kristoffersen, Brage Strand; Bergmo, Per Eirik Strand; Slotte, Per Arne; Berg, Carl Fredrik (Peer reviewed; Journal article, 2022)Tackling emissions from hydrocarbon production is a necessity because hydrocarbon production will last for a prolonged time. As a popular hydrocarbon production method, waterflooding operation is energy-intensive and ... -
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 ... -
Extending a derivative-free model-based trust-region optimization algorithm to account for constraints and partial gradient information - Application to oil field development
Andersen, Joakim Rostrup (Master thesis, 2018)This master's thesis is motivated by the oil field development challenge. This is a very big and complicated task and only one part of it will be in focus, namely, the well placement challenge. When planning a new oil field ... -
FieldOpt: Enhanced Software Framework for Petroleum Field Optimization - Development of Software Support System for the Integration of Oil Production Problems with Optimization Methodology
Baumann, Einar Johan Moen (Master thesis, 2015)This thesis concerns the development of FieldOpt, a software framework that aims at being a common platform for MSc. and Ph.D. students of optimization theory and petroleum engineering to conduct research. With FieldOpt, ... -
Gradient-based constrained well placement optimization
Volkov, Oleg; Bellout, Mathias (Journal article; Peer reviewed, 2018)A novel well placement gradient approximation methodology is developed based on performing finite difference approximations of augmented Lagrangian derivatives within the adjoint formulation. The methodology is efficient ... -
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 ... -
Graphical User Interface for Petroleum Field Optimization Software (FieldOpt) - Development of Interface for Configuring Driver Files
Rykkelid, Karoline Louise (Master thesis, 2016)This Master's thesis concerns the further development of FieldOpt, a petroleum field optimization software, in close collaboration with the Petroleum Cybernetics Group at NTNU. This particular part of the development has ... -
Implementation of Linear Constraint Handling Techniques for Generating Set Search Method for Well Placement Optimization Problem on FieldOpt Platform
Niu, Bo (Master thesis, 2017)Literature review shows that few researchers have focused on GSS method to solve well placement optimization problem and even fewer researchers have approximated the feasible domain with piecewise linear constraints. In ... -
Implementation of Particle Swarm Optimization Algorithm within FieldOpt Optimization Framework - Application of the algorithm to well placement optimization
Panahli, Chingiz (Master thesis, 2017)In the present work, particle swarm optimization algorithm is applied in well placement optimization problem using FieldOpt, a software framework that aims at being common platform for field development optimization. ... -
Implementation of Trust-region Algorithm for Well Placement Optimization in FieldOpt Framework
Wang, Lingya (Master thesis, 2017)Oil field development is a challenging engineering task that involves optimization problems such as the types, numbers, scheduling, location, and controls of wells. Optimization algorithm is the keyfactor for optimization ... -
On the Importance of Expert Knowledge in Well Placement Optimisation
Zakharov, Alexander (Master thesis, 2016)As of today, well placement optimisation in field development planning is most commonly based on the trial-and-error approach that requires the evaluation of numerous field development scenarios. This approach is not ... -
Optimal Well Inflow Modelling
Nakibuule, Maria Assumpta (Master thesis, 2021)Horisontale brønner (HWs) er utplassert i hydrokarbonreservoarer for å øke reservoarets kontringsområde og dermed utvinning. Trykktap langs brønnens lengde, og reservoarets heterogenitet skaper en ubalansert brønninnstrø ... -
Reduced well path parameterization for optimization problems through machine learning
Kristoffersen, Brage Strand; Bellout, Mathias; Silva, Thiago Lima; Berg, Carl Fredrik (Peer reviewed; Journal article, 2021)In this work we apply a recently developed machine learning routine for automatic well planning to simplify well parameterization in reservoir simulation models. This reduced-order parameterization is shown to be beneficial ... -
Study of Pattern Search Optimization and Implementation of Hooke-Jeeves Direct Search for Production Optimization using Perforations
Møller, Silje (Master thesis, 2016)This thesis concerns the topic of petroleum production optimization using perforations. A plug-in by PhD student Einar Baumann was extended to include a second pattern search method: Hooke-Jeeves direct search. Originally ... -
Well Control Optimization by Coupling Smart Proxy Models with Genetic Algorithm
Chaturvedi, Arpita (Master thesis, 2021)Generally, optimal well controls to maximize net present value (NPV) are obtained by coupling of numerical reservoir simulation with an optimization algorithm. This approach requires a significant number of numerical ... -
Well placement optimization subject to realistic fielddevelopment constraints
Jesmani, Mansoureh; Bellout, Mathias; Hanea, Remus Gabriel; Foss, Bjarne Anton (Journal article; Peer reviewed, 2016)