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Keywords: ensemble
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Proceedings Papers
Integration of Production Data Analysis in Ensemble History Matching
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, January 24–26, 2023
Paper Number: SPE-212679-MS
... process is highly recommended. The scope of the activity is then to set up a new workflow able to fully integrate Production Data Analysis (PDA) with an Ensemble History Matching (ENHM) workflow. PDA outcomes represent evidence highlighted by the whole production history based on the collection, analysis...
Proceedings Papers
A Pragmatic Approach to Reservoir Simulation Optimisation Under Uncertainty
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, September 17–19, 2019
Paper Number: SPE-196659-MS
... of a large uncertainty ensemble of static realisations, and most of all the large number of simulation runs that potentially needs to be conducted. This is exacerbated when the models are large and require many hours to run. Moreover, even with the prevalence of distributed and parallel computing clusters...
Proceedings Papers
Production Optimisation Under Uncertainty with Automated Scenario Reduction: A Real-Field Case Application
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, September 17–19, 2019
Paper Number: SPE-196637-MS
... Abstract In this work we discuss the successful application of our previously developed automated scenario reduction approach applied to life-cycle optimization of a real field case. The inherent uncertainty present in the description of reservoir properties motivates the use of an ensemble...
Proceedings Papers
Efficient Optimization of Field Management Strategies in Reservoir Simulation
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, September 17–19, 2019
Paper Number: SPE-196662-MS
... the simulation model, using customized logic for field management strategies, can bring improved workflow flexibility and efficiency, by reducing the effort needed for uncertainty iterations. To achieve meaningful forecasts for an ensemble of uncertain scenarios, it is important to distinguish between different...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, September 17–19, 2019
Paper Number: SPE-196636-MS
... users to easily model conceptual as well as parametric uncertainties of the reservoir without the necessity of any complex scripting. The chain of models for all concepts is presented in one view, to provide overview of the key differences between concepts used. An ensemble of geologically sound samples...
Proceedings Papers
Drainage Strategy Optimization - Making Better Decisions Under Uncertainty
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, September 17–19, 2019
Paper Number: SPE-196683-MS
... strategy ensemble reservoir model Upstream Oil & Gas development strategy algorithm control strategy Scenario enhanced recovery injector producer drainage strategy development scenario reservoir society of petroleum engineers waterflooding Introduction In a recent report...
Proceedings Papers
Visual Recognition of Drill Cuttings Lithologies Using Convolutional Neural Networks to Aid Reservoir Characterisation
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, September 17–19, 2019
Paper Number: SPE-196675-MS
... consistent as well. It would further help to reduce the time taken to get human expertise to complete the task, as well as the associated cost. machine learning classification recognition ensemble Artificial Intelligence reservoir characterisation detection Upstream Oil & Gas convolutional...
Proceedings Papers
History Matching Using 4D Seismic in an Integrated Multi-Disciplinary Automated Workflow
Available to PurchaseTaha Taha, Paul Ward, Gavin Peacock, John Heritage, Rafel Bordas, Usman Aslam, Steve Walsh, Richard Hammersley, Emmanuel Gringarten
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, September 17–19, 2019
Paper Number: SPE-196680-MS
... Abstract This paper presents a case study in 4D seismic history matching using an automated, ensemble-based workflow that tightly integrates the static and dynamic domains. Subsurface uncertainties, captured at every stage of the interpretative and modelling process, are used as inputs within...
Proceedings Papers
Dynamic Modeling of a High Temperature CO2-Rich Giant Gas Field with a Carbon Capture and Storage Strategy
Available to PurchasePaolo Rizzato, Daniele Castano, Leili Moghadasi, Dario Renna, Patrizia Pisicchio, Martin Bartosek, Yohan Suhardiman, Andrew Maxwell
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, September 17–19, 2019
Paper Number: SPE-196691-MS
... the CO2 sequestration in the reservoir. Reservoir Characterization Modeling & Simulation Upstream Oil & Gas enhanced recovery Fluid Dynamics Plateau Length Brine ensemble experiment configuration Carbon Capture aquifer flow in porous media temperature co2-rich giant gas field...
Proceedings Papers
Enhancing the Geological Models Consistency in Ensemble Based History Matching an Integrated Approach
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, May 8–10, 2017
Paper Number: SPE-186049-MS
... Abstract The aim of this work is to present the effectiveness of a fully integrated approach for ensemble-based history matching on a complex real field application. We show that the predictive ability of the ensemble of models is greatly enhanced through an integrated workflow promoting...
Proceedings Papers
Applying Statistical Learning to Quantitative Well Log Analysis
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, May 8–10, 2017
Paper Number: SPE-186044-MS
.... The statistical approach also indirectly takes into account noise in the data. well logging water resistivity well log data saturation machine learning Upstream Oil & Gas traditional workflow fraction log analysis oil field porosity ensemble Artificial Intelligence nonlinear equation core...
Proceedings Papers
Characterization and Uncertainty Reduction on Facies Distribution and Probability Cubes with Ensemble Kalman Filter History Matching
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, May 8–10, 2017
Paper Number: SPE-186074-MS
... Abstract Power of ensemble based data assimilation methods to history match oil and gas reservoirs has been revealed during the past couple of years by different field application works ( Oliver and Chen, 2011 ). Moreover the achievements in advanced parameterization ( Lorentzen et al. 2011...
Proceedings Papers
Estimation of Three-Phase Relative Permeabilities for A WAG Process Using An Improved Ensemble Randomized Maximum Likelihood Algorithm
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, May 8–10, 2017
Paper Number: SPE-186012-MS
... Abstract In this paper, a modified ensemble randomized maximum likelihood (EnRML) algorithm has been developed to estimate three-phase relative permeabilities with consideration of hysteresis effect by reproducing the actualproduction data. Ensemble-based history matching uses an ensemble...
Proceedings Papers
Improving Reservoir Exploitation Using Fast Geomechanical Modelling Coupled With Surface Displacement Data Assimilation
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, May 8–10, 2017
Paper Number: SPE-186028-MS
... displacement workflow ensemble compartment Ingredients of the inversion Planning of reservoir exploitation is often mainly based on predictions of future reservoir behavior by reservoir flow simulations. These flow simulations incorporate our a-priori understanding of the geology of the reservoir...
Proceedings Papers
Improved Reservoir Management Decisions Using Ensemble Based Methods
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, September 14–16, 2015
Paper Number: SPE-175668-MS
... predictions and associated uncertainty estimates can be trusted. In order to achieve this task, a clear requirement is that the reservoir models consistently honour both static and dynamic data, while capturing all modelling uncertainties. In this paper we will illustrate how using ensemble based methods can...
Proceedings Papers
Value of Multiple Production Measurements and Water Front Tracking in Closed-Loop Reservoir Management
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, September 14–16, 2015
Paper Number: SPE-175608-MS
... . Chen , Y. , Oliver , D.S. and Zhang , D. 2009 . Efficient ensemble-based closed-loop production optimization . SPEJ 14 ( 4 ) 634 – 645 . doi: 10.2118/112873-PA . Jansen , J.D. , Brouwer , D.R. , Nævdal , G. and van Kruijsdijk , C.P.J.W. 2005 . Closed-loop...
Proceedings Papers
Optimizing Reservoir Life-Cycle Production Under Uncertainty: a Robust Ensemble-Based Methodology
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, September 14–16, 2015
Paper Number: SPE-175570-MS
... performance. Another key issue is that model parameters are always affected by uncertainty, even after being conditioned to the historical data. Objective of this paper is to present a robust ensemble-based optimization methodology (EnOpt) for maximizing reservoir life-cycle production under geological...
Proceedings Papers
Multipoint Statistical Characterization of Geologic Facies from Dynamic Data and Uncertain Training Images
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, October 9–11, 2011
Paper Number: SPE-146935-MS
... geologic modeling artificial intelligence tis facies realization realization consistency weight pcm approach enkf probability map khodabakhshi facies distribution ensemble ti consistency weight forecast multiple tis reference model ensemble kalman filter Introduction Subsurface...
Proceedings Papers
Monte Carlo Molecular Simulation of Phase-coexistence for Oil Production and Processing
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, October 9–11, 2011
Paper Number: SPE-148282-MS
... Abstract The Gibbs- NVT ensemble Monte Carlo method is used to simulate the liquid-vapor coexistence diagram and the simulation results of methane agree well with the experimental data in a wide range of temperatures. For systems with two components, the Gibbs- NPT ensemble Monte Carlo method...
Proceedings Papers
Data Assimilation Coupled to Evolutionary Algorithms—A Case Example in History Matching
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE/EAGE Reservoir Characterization and Simulation Conference, October 19–21, 2009
Paper Number: SPE-125512-MS
... properties. It is shown that an EnKF workflow can be effectively coupled to other stochastic optimization schemes with complimentary optimization features. The EnKF formulation reduces a non-linear optimization problem in a large parameter space to a statistical optimization problem in ensemble space...
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