Publications

  • 4d seismic and history matching - activities at the IOR center

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  • Efficient big seismic data assimilation through sparse

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  • Geosteering

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  • The past and the future

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  • Olympus Field Development Optimization (FDO)

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  • Decision-Driven Big Data and Analytics for the Digital Subsurface

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  • IOR Center Task 6 – Higher Order Methods and Open Source Simulation Tools

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  • OPM: Simulation tools for CO2-EOR

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  • Digital Well Delivery and New Opportunities

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  • Correlation-Based Adaptive Localization With Applications to Ensemble-Based 4D-Seismic History Matching

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  • Heterogeneity preserving upscaling for heat transport in fractured geothermal reservoirs

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  • New methodology for interpreation of dynamic contrast imaging data

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  • Ensemble-based Methods for Production Optimization

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  • A Weak Compatibility Condition For Newest Vertex Bisection in any Dimension

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  • Production Optimization for the Digital Subsurface

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  • Esemble based methods for reservoir characterization and optimization: Examples on including uncertainty quantification throughout the workflows.

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  • Efficient big seismic data assimilation through sparse representation

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  • Comparison of Linear Reconstructions for Second Order Finite Volume Schemes on Polyhedral Grids

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  • Value of 4D seismic history matching

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  • A two-phase flow simulation method with improved stability

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  • A robust control volume heterogeneous multiscale method for

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  • Estimation of pressure-saturation and porosity fields from seismic acoustic impedance data using an ensemble based method

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  • Fractal structures in freezing brine

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  • Comparison of Linear Reconstructions for Second Order Finite Volume Schemes on Polyhedral Grids

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  • Simulating polymer flooding using implicit high-resolution methods

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  • Properties of iterative ensemble smoothers for history matching

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  • Efficient big data assimilation through sparse representation

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  • Use of correlation-based localization for history matching seismic data

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  • 4D seismic and history matching - activities at the IOR center

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  • Efficient big data assimilation through sparse representation

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  • An adaptive pluri-Gaussian simulation model for geological uncertainty quantification

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  • Comparison of Linear Reconstructions for Second Order Finite Volume Schemes on Polyhedral Grids

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  • Fully implicit higher-order schemes applied to polymer

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  • Distributed Newest Vertex Bisection

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  • Large Sample Properties of the Adaptive Gaussian Mixture Filter

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  • Data-driven adaptive localization with applications to

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  • Use of Correlation Based Localization for History Matching Seismic Data

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  • Iterative Ensemble Smoothers in a probabilistic framework

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  • A general purpose localization method for ensemble based history matching applied to the full Norne field

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  • A modified randomized maximum likelihood for improved Bayesian history matching

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  • Robust production optimization with capacitance-resistance model as precursor

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  • hp–Adaptive Discontinuous Galerkin Methods for Porous Media Flow

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  • NIOR Centre Overview

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  • Bayesian Inversion of Time-lapse Seismic Waveform Data Using an Integral Equation Method

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  • Estimation of Pressure-Saturation and Porosity Fields from Seismic AVA Data Using an Ensemble

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  • Baysian inversion of time-lapse seismic waveform data using an integral equation

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  • Estimation of Pressure-Saturation and Porosity Fields from Seismic AVA Data Using an Ensemble Based Method

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  • Data-driven adaptive localization with applications to seismic history matching

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  • Data Driven Adaptive Localization With Applications To Ensemble-Based 4D Seismic History Matching

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  • The DUNE-FEM-DG module

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  • Using code generation to improve performance of a multipurpose Discontinuous Galerkin implementation based on DUNE-FEM and DUNE-FEM-DG

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  • An auxiliary adaptive Gaussian mixture filter applied to flowrate allocation

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  • Chemical Screening and Evaluation for Water Management in Carbonate Naturally Fractured Reservoirs – Part I

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  • Chemical Screening and Evaluation for Water Management in Carbonate Naturally Fractured Reservoirs – Part II

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  • Improving physically based snow simulations by assimilating snow depths using the particle filter

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  • Fully implicit higher-order schemes applied to polymer flooding

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  • Owerview of IRIS 4D seismic activities

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  • SCAL - Skrugard 7220/5-1

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  • Extensions of the Ensemble Based Optimization algorithm

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  • Distributed Newest Vertex Bisection

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  • Testing and verification of ensemble based methods in ERT

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  • Complex geology estimation using the iterative adaptive Gaussian mixture (IAGM)

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  • Estimating Observation Error Covariance Matrix of Seismic Data from a Perspective of Image denoising

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  • An Ensemble 4D Seismic History Matching Framework with Sparse Representation Based on Wavelet Multiresolution Analysis

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  • New methodology for inter pretation of dynamic contrast imaging data

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  • Rate Allocation - Wells C-1 and C-4

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  • Rate Allocation - Project Summery Phase III

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  • Rate Allocation - User Guide and Technical Description

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  • Time lapse CSEM reservoir monitoring of the Norne field with vertical dipoles

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  • Ensemble based 4D seismic history matching using a sparse representation of AVA data

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  • Time lapse CSEM reservoir monitoring of the Norne field with vertical dipoles

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  • Ensemble based 4D seismic history matching using a sparse representation of AVA data

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  • SCAL Askja, Well 30/11-9 A

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  • 4d seismic and history matching - activities at the IOR center

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  • Production optimization

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  • Task 6: Reservoir Simulation Tools - About OPM and Task 6 projects and activities

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  • Sensitivity analysis of effective fluid and rock bulk modulus due to changes in pore pressure, temperature and saturation

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  • Simulating gelation of silica for in-depth reservoir plugging using IORSim as an add on tool to ECLIPSE

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  • Mutation Based Optimization Extensions and Improvements

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  • Ensemble Based Optimization using Impor tance Sampling and Gaussian Mixture

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  • Estimating Observation Error Covariance Matrix of Seismic Data from a Perspective of Image Processing

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  • Comparison of Linear Reconstructions for Second Order Finite Volume Schemes on Polyhedral

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  • Ensemble Based Optimization using Impor tance Sampling and Gaussian Mixture

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  • An ensemble 4D seismic history matching framework with sparse representation: A 3D benchmark case study

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  • Fully Implicit Higher-order Schemes Applied to Polymer Flooding

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  • An Auxiliary Adaptive Gaussian Mixture Filter Applied to Flowrate Allocation Using Real Data

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  • An Ensemble 4D Seismic History Matching Framework with Wavelet Multiresolution Analysis - A 3D Benchmark Case Study

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  • An Auxiliary Adaptive Gaussian Mixture Filter Applied to Flowrate Allocation Using Real Data

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  • Fully Implicit Higher-order Schemes Applied to Polymer Flooding

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  • Linear Reconstructions for Second Order Finite Volume Schemes on Polyhedral Grids

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  • Different Parameterizations of the Initial Ensemble for a Channelized Reservoir in an

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  • Robust Production Optimization with Capacitance-Resistance Model as Precursor

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  • Robust Production Optimization with Capacitance-Resistance Model as Precursor

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  • Integrated Work Flow of Preserving Facies Realism in History Matching: Application to the Brugge Field

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  • Bayesian estimation of reservoir properties - effects of uncertainty quantification of 4D seismic data

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  • Rate Allocation – Wells D-1 and C-3

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  • Efficient bigdata assimilation through sparserepresentation: A case study in 4D seismic history matching

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  • Conditioning Reservoir Models to Pressure Transients by Iterative Ensemble Smoother

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  • Different parameterizations of the initial ensemble for a channelized reservoir in an Assisted History Matching context

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  • Realistic Application of EnKF on Capacitance-Resistance Models

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  • Ensemble based data assimilation for a multi-compar tment porous media model

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  • Estimating observation errorcovariance matrix ofseismic data from a perspective of image processing

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  • Improving physically based snow simulations by assimilating snow depths using the particle filter

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  • A High-Order Multiscale Global Atmospheric Model

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  • Iterative Ensemble Smoothers in a probabilistic framework

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  • Data assimilation using MRI data

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  • Assimilation using MRI data

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  • Evaluating Potential CO2 Injection Capacity of Aquifers Based on Well Testing

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  • The Distributed and Unified Numerics Environment, Version 2.4

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  • On the effect of wettability, hysteresis, and spreading films on three-phase fluid flow in porous

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  • On Efficient Time Stepping using the Discontinuous Galerkin Method for Numerical Weather Prediction

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  • Flow - an open source research tool for reservoir simulation

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  • Plane Wave Semi-Continuous Galerkin method for seismic wave simulation

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  • Using a Capacitance-Resistance Model as Proxy for Fast Robust Production Optimization

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  • Estimation of reservoir parameter changes using 4D seismic data

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  • Efficient big data assimilation through sparse representation: A case study in 4D seismic

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  • Parametric representation of cell boundary flux distribution in well equations

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  • An Ensemble 4D Seismic History Matching Framework with Sparse Representation Based on Wavelet Multiresolution Analysis

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  • SPE-180024-MS: Polymers and Polymer-Based Gelants for Improved Oil Recovery and Water Control Applications in Naturally Fractured Chalk Formations

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  • Robust Production Optimization with Capacitance-Resistance Model as Proxy

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  • Snorre In-Depth Water Diversion - New Operational Concept for Large Scale Chemical Injection from a Shuttle Tanker

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  • From oil to medicine

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  • Data assimilation for a multi-compartment porous media model

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  • Cooling test Johan Sverdrup Reservoir Sand - on how temperature reduction affects side stesses

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  • What is going on at IRIS offices in the 8th floor?

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  • Data assimilation in medicine?

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  • Gradient Free Optimization under Uncertainty

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  • Wettability study Gohta PL 492 license

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  • Wettability study Alta PL 609 license

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  • Ensemble

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  • Rate Allocation – New Functionalities and Additional Tests

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  • Three-Phase Capillary Pressure, Hysteresis and Trapping in a Porous Glass-Bead Column

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  • Iterative Ensemble Smoother as an Approximate Solution to a Regularized Minimum-Average-Cost Problem: Theory and Applications

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  • Integrated Workflow of Preserving Facies Realism in History Matching: Application to the Brugge Field

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  • Horizontally Explicit and Vertically Implicit (HEVI) Time Discretization Scheme for a Discontinuous Galerkin Nonhydrostatic Model

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  • Three-phase capillary pressure, hysteresis and trapping in mixed-wet rock

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  • Generalized Randomized Maximum Likelihood

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  • Efficient Simulation-based Multiobjective Well Placement Optimization

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  • Preserving Geological Realism in Reservoir Data Assimilation

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  • User manual. IRIS Filter Toolbox

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  • Ensemble Methods for Reservoir Data Assimilation: Best Practices

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  • Better estimation of pressure-saturation changes from time-lapse PP-AVO data by using non-linear

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  • Iterative Ensemble Smoothers in the Annealed Importance Sampling Framework

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  • Preser ving Geological Realism of Channelized Facies in Complex Reser voir

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  • A Unified Framework for a Class of Ensemble Data Assimilation Algorithms in Reservoir History Matching

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  • Preserving Geological Realism of Facies Estimation on the Brugge Field

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  • Estimation of production rates using transient well flow modeling and the auxiliary particle filter - full-scale applications

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  • Removal of mud components from reservoir sandstone rocks

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  • Mitigating Observation Perturbation Sampling Errors in the Stochastic EnKF

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  • Iterative Ensemble Smoother as an Approximate Solution to a Regularized Minimum-Average-Cost Problem: Theory and Applications

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  • Ensemble based framework for proactive g eosteering

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  • An ensemble-based framework for proactive geosteering

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  • An ensemble-based framework for proactive geosteering

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  • Ensemble-based framework for proactive geosteering

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  • COREC - Centre for Oil RECovery - Three year report 2012-2014 Final

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  • Optimization under uncertainty: A unified framework for a class of ensemble data assimilation algorithms

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  • (Towards a) Generalized Randomized Maximum Likelihood

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  • Ensemble Smoothers in the Annealed Importance Sampling Framework

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  • Rate Allocation Project Summary

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  • Multi-objective optimization for rapid and robust optimal oilfield development under geological uncertainty

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  • Rate Allocation Applied to Well D-1

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  • An Adaptive Pluri-Gaussian Simulation Model for Geological Uncertainty Quantification

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  • Integrated Workflow of Preserving Facies Realism in History Matching: Application to the Brugge Field

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  • Preserving Geological Realism for Channelized Facies Estimation on the Brugge Field

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  • Pressure Transient Analysis in CO2 Storage Projects: from Reservoir Characterization to Injection Performance Forecast

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  • Critical Aspects in Surfactant Flooding Procedure at Mixed-wet Conditions. SPE-174393-MS

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  • Evaluation of the compositinal changes during flooding of reactive fluids using scanning electron microscopy, nano-secondary ion mass spectrometry, x-ray diffraction, and whole-rock geochemistry

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  • Snorre three-phase steady-state, well 34/4-C-6-H

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  • A Theoretical look at Ensemble-Based Optimization in Reservoir Management

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  • Modelling of snap-off mechanisms during three-phase flow in porous media

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  • SPE 170883 - Computation of Three-Phase Capillary Pressure Curves and Fluid Configuratons at Mixed-Wet Conditions in 2D Rock Images

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  • Porosity and permeability deve lopment in compacting chalks during flooding of nonequilibrium brines: Insights from long-term experiment

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  • Three-phase fluid displacements on the pore scale: method and mechanisms

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  • Simulation tools for CO2 storage and CO2-EOR. Final report phase 1

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  • Multi-Objective Optimization Coupled With Dimension-Wise Polynomial-Based Approach in Smart Well Placement Under Model Uncertainty

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  • SPE 173872 Facies Parameterization and Estimation for Complex Reservoirs - The Brugge Field

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  • Facies Parameterization and Estimation for Complex Reservoirs - The Brugge Field

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  • A MODEL FOR LOW SALINITY FLOODING EXPERIMENTS: DISSOLUTION AND ION EXCHANGE

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  • Bridging multipoint statistics and truncated Gaussian fields for improved estimation of channelized reservoirs with ensemble methods

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  • Reservoir stability during water flooding and the effect of cooling - triaxial cell experiments on Johan Sverdrup reservoir snd

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  • Multi-Objective Optimization Coupled With Dimension-Wise Polynomial-Based Approach in Smar t Well Placement Under Model Uncer tainty

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  • On how water chemistry and compaction alter the permeability of Ekofisk reservoir cores from the VB7 well

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  • Ensemble based 4-d seismic histor y matching

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  • COREC Phase 1 and 2 Dynamic fracture impact on well

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  • Toward an enhanced Bayesian estimation framework for multiphase flow soft-sensing

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  • SCAL Johan Sverdrup, well 16/2-11

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  • Ensemble Kalman filtering with a divided state-space strategy for coupled data assimilation problems

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  • Near well modeling

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  • Project results and thoughts. Field studies & Isatis Big Loop Study

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  • Some numerical investigations of an iterative ensemble smoother based on the regularized Levenberg-Marquardt algorithm

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  • Reservoir complexity and recovery factor potential: A literature survey

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  • Large sample properties of the Adaptive Gaussian Mixture Filter

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  • Ensemble Smoothers in the Annealed Importance Sampling Framework

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  • Iterative Bayesian Inversion with Gaussian Mixtures: Finite Sample Implementation and Large Sample Asymptotics

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  • Ensemble based methods for estimation and optimization

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  • On an Alternative Implementation of the Iterative Ensemble Smoother and its Application to

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  • Ensemble Kalman Filtering with Residual Nudging: An Extension to State

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  • Estimating Geo-modeling Control-parameters from Historical Data by Means of the EnKF

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  • Ensemble Kalman filtering with a divided state-space strategy for

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  • Adaptivity with DUNE-FEM

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International Research Institute of Stavanger
Mailing address:
Visiting address:
P.O. Box 8046, N-4068 Stavanger, Norway
Prof. Olav Hanssensvei 15, 4021 Stavanger


Phone:
Fax:

+47 51 87 50 00
+47 51 87 52 00

General email address: firmapost@iris.no
International Research Institute of Stavanger
Mailing address:
Visiting address:
P.O. Box 8046, N-4068 Stavanger, Norway
Prof. Olav Hanssensvei 15, 4021 Stavanger


Phone:
Fax:

+47 51 87 50 00
+47 51 87 52 00

General email address: firmapost@iris.no
International Research Institute of Stavanger
Mailing address:



Visiting address:
P.O. Box 8046
N-4068 Stavanger
Norway

Prof. Olav Hanssensvei 15 
4021 Stavanger

 
Phone:
Fax:
General email:
+47 51 87 50 00
+47 51 87 52 00
firmapost@iris.no