Go straight to content
<
<
Rolf Johan Lorentzen

Rolf Johan Lorentzen

Senior Researcher

rolo@norceresearch.no
+47 51 87 56 24
Nygårdsgaten 112, 5008 Bergen, Norway

I completed my PhD in applied mathematics at the University of Bergen in 2002. Since 1/10-2018 I have been employed as a senior scientist in NORCE Energy. From 2006-2018 I was a senior scientist at IRIS, and before that a researcher at Rogaland research.

I have mainly worked with problems related to modeling of multi-phase fluid flow in wells and porous media (reservoirs), and in particular calibration of models using ensemble-based data assimilation. I have also worked on ensemble-based optimization, and have contributed to the development and applications of these methods. More recently, I have worked with applications involving large data sets (seismic) and large-scale models, as well as problems in medicine.

Rolf Johan Lorentzen

Division

Energy & Technology

Research themes

Big Data
Renewable energy
Data assimilation
Reservoir Modelling

Research Groups

Dataassimilering og optimalisering

More information about Rolf Johan Lorentzen

See profile in Cristin

Download pressphoto
Source: NORCE/Rune Rolvsjord

Projects

See all
See all
Publications
A natural Hessian approximation for ensemble based optimization – Computational Geosciences 2023
History Matching Field Scale Model Using LET Based Relative Permeability – 2022
Adaptive machine learning-based surrogate modeling to accelerate PDE-constrained optimization in enhanced oil recovery – Advances in Computational Mathematics 2022
Robust Value Quantification of Enhanced Oil Recovery Methods Using Ensemble-Based Optimization – SPE Reservoir Evaluation and Engineering 2022
Methodological developments for ensemble-based optimization of EOR processes – Universitetet i Stavanger 2021
Workflow for adding 4D seismic data in history matching – Universitetet i Stavanger 2021
Ensemble-based constrained optimization using an exterior penalty method – Journal of Petroleum Science and Engineering 2021
4D seismic history matching – Journal of Petroleum Science and Engineering 2021
Accounting for model errors of rock physics models in 4D seismic history matching problems: A perspective of machine learning – Journal of Petroleum Science and Engineering 2021
Optimizing Well Economic Limits Using Ensemble-Based Optimization on Olympus Field – 2020
On the Robust Value Quantification of Polymer EOR Injection Strategies for Better Decision Making – 2020
Accounting for Model Errors of Rock Physics Models in 4D Seismic History Matching Problems: A Perspective of Machine Learning – 2020
Assisted History Matching of 4Dseismic Data - A Comparative Study – 2019
Simultaneous assimilation of production and seismic data: application to the Norne field – Computational Geosciences 2019
OLYMPUS optimization under geological uncertainty – Computational Geosciences 2019
Ensemble-based Kernel Learning to Handle Rock-physics-model Imperfection in Seismic History Matching: A Real Field Case Study – 2019
History Matching the Full Norne Field Model Using Seismic and Production Data – SPE Journal 2019
Mathematics and Medicine: How mathematics, modelling and simulations can lead to better diagnosis and treatments – Lecture Notes in Computational Science and Engineering 2019
Correlation-Based Adaptive Localization for Ensemble-Based History Matching: Applied To the Norne Field Case Study – SPE Reservoir Evaluation and Engineering 2018
OLYMPUS Optimization Under Geological Uncertainty – 2018
History Matching Of Real Production And Seismic Data In The Norne Field – 2018
History Matching Using an Iterative Ensemble Smoother with Correlation-Based Adaptive Localization - A Real Field Case Study – 2018
Correlation-Based Adaptive Localization for Ensemble-Based History Matching: Applied to the Norne Field Case Study – 2018
Practical Use of the Ensemble-Based Conjugate Gradient Method for Production Optimization in the Brugge Benchmark Study – 2018
A Novel Ensemble-Based Conjugate Gradient Method for Reservoir Management – 2018
Estimation of pressure-saturation and porosity fields from seismic acoustic impedance data using an ensemble based method – 2017
An auxiliary adaptive Gaussian mixture filter applied to flowrate allocation using real data from a multiphase producer – Computers & Geosciences 2017
Data assimilation using MRI data – 2016
An Auxiliary Adaptive Gaussian Mixture Filter Applied to Flowrate Allocation Using Real Data from a Multiphase Producer – 2016
Estimation of production rates using transient well flow modeling and the auxiliary particle filter – full-scale applications – SPE Production & Operations 2016
Iterative Ensemble Smoother as an Approximate Solution to a Regularized Minimum-Average-Cost Problem: Theory and Applications – SPE Journal 2015
Optimization of well trajectory under uncertainty for proactive geosteering – SPE Journal 2015
On an Alternative Implementation of the Iterative Ensemble Smoother and its Application to Reservoir Facies Estimation – 2014
Toward an Enhanced Bayesian Estimation Framework for Multiphase Flow Soft-sensing – 2014
On an Alternative Implementation of the Iterative Ensemble Smoother and its Application to Reservoir Facies Estimation – IRIS 2014
Toward an enhanced Bayesian estimation framework for multiphase flow soft-sensing – Inverse Problems 2014
An iterative version of the adaptive Gaussian mixture filter – Computational Geosciences 2014
Estimation of production rates with transient well-flow modeling and the auxiliary particle filter – SPE Journal 2014
Estimating Facies Fields by Use of the Ensemble Kalman Filter and Distance Functions-Applied to Shallow-Marine Environments – SPE Journal 2013
History Matching Channelized Reservoirs Using the Ensemble Kalman Filter – Society of Petroleum Engineers Journal : SPE Journal 2012
Optimization of Well Trajectory under Uncertainty for Proactive Geosteering – 2012
An iterative ensemble Kalman filter – IEEE Transactions on Automatic Control 2011
Tuning of Computer Model Parameters in Managed-Pressure Drilling Applications Using an Unscented-Kalman-Filter Technique – SPE Journal 2010
Tuning of Computer Model Parameters in Managed Pressure Drilling Applications Using an Unscented Kalman Filter Technique – SPE Journal 2010
Results of the Brugge Benchmark Study for Flooding Optimization and History Matching – SPE Reservoir Evaluation and Engineering 2010
See all publications in Cristin