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Showing 1 to 20 of 46 for “"History matching"”.
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Assisted history matching using pattern recognition technology
… in different capacities. Sensitivity analysis, history matching, operations optimization and uncertainty assessment are the conventional analyses in full field model studies. Realistic modeling of the complexities of a reservoir requires a large number of grid blocks. As the complexity of a …
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Uncertainty quantification of unconventional reservoirs using assisted history matching methods
… is characterization uncertainty. Assisted History Matching (AHM) methods provide attractive means for uncertainty quantification (UQ), because they yield an ensemble of qualifying models instead of a single candidate. Here we integrate embedded discrete fracture model (EDFM), one of …
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Ensemble-based reservoir history matching using hyper-reduced-order models
… optimization, uncertainty quantification, and history matching. To relieve the computational burden in reservoir flow modeling, a reduced-order modeling procedure based on hyper-reduction is presented. The procedure consists of three components: state reduction, constraint reduction, and …
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Localization with the EnKF for the Automatic History Matching of the SAGD Processes
… localization were proposed for automatic history matching of SAGD processes. The regions of the localization function were determined through covariance analysis by using a large ensemble with 1000 members. The covariance analysis indicated that the regions of cross correlations between …
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A Novel Automatic History Matching Method and Upscaling Study of Cyclic Solvent Injection Process for Post-Chops Heavy Oil Reservoirs
… tests. A modified genetic algorithm (GA) based history matching method (MGA) was validated by history matching three tests. This MGA method was developed by integrating a population database and orthogonal array with the GA to improve the efficiency and effectiveness of the algorithm. Because of …
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History matching sensitivity investigations and forecasting for low matrix porosity, permeability and highly fractured carbonate reservoir to optimize oil production in Kurdistan Region
… The reservoir model should be calibrated via the history matching process which makes the model reliable for forecasting and development planning. An investigation has been carried out to find the most sensitive parameter which affects the matching between the real production data and the …
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Numerical simulation and optimisation of polymer flooding in a heterogenous reservoir : constrained versus unconstrained optimisation
… the impact of geological uncertainties and history matching techniques on designing the optimal strategy for, and quantifying the economic risks of, polymer flooding in a heterogeneous clastic reservoir. We applied two different history matching techniques (adjoint-based and a stochastic …
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Permeability Distribution Estimation Based on Semi-Analytical Reservoir Simulator
… distribution can be realized by automatic history matching production data. The process of automatic history matching involves the minimization of an objective function which usually includes the sum of data mismatch part as well as the sum of prior model mismatch part. For our …
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Continuous reservoir modeling updating by integrating experimental data using an ensemble Kalman Filter
… real field data are available to test the new history matching method, and most of the data sets are synthetic cases. Second, computational cost may be high when using non-Gaussian priors or nonlinear models. Third, with large complex models, the simulation runs and history matching method …
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Investigation of post hydraulic fracturing well cleanup physics in the Cana Woodford shale
… and effective way to tackle the problem. History matching can help reveal some mechanisms existent in the cleanup process. The Fracturing, Acidizing, Stimulation Technology (FAST) Consortium at Colorado School of Mines previously developed a numerical model for investigating the hydraulic …
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A comparison of electric and hydraulic approaches to fluid flow simulation and hydraulic parameters inversion
History matching and prediction of future performance of hydrocarbon reservoirs and groundwater aquifers are considered some of the biggest challenges facing hydrologists and petroleum engineers. The complexity of the simulation method, in addition to the huge amount of input data, makes evaluating …
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An improved approach for quantifying the impact of geological uncertainty and modelling decisions on static and dynamic reservoir models - a case study from a giant fractured carbonate reservoir
… reservoir models led to significantly improved history match, especially for wells located in the transition zone of the reservoir. The best history matches were obtained once sparse, fault-controlled fractures were included in the reservoir model, using effective medium theory. The presence of …
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Model Calibration and Performance Optimization Using Multiple-Point Geostatistics and Machine Learning Techniques
… to model the impact of geological uncertainty on history matching and optimization problems. Most of traditional history matching and optimization methods are based on some forms of trial and error schemes. These methods are not usually designed to include and/or preserve the geological continuity …
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Development of techniques for quantifying pressure and saturation changes from 4D seismic data applied to a North Sea field
… out specific quantitative tasks such as seismic history matching. On the other hand, I show that it is possible to conduct valuable qualitative interpretations at a fraction of the turnover time, with the use of quick and simple inversion solutions. Hence, I conclude that all three inversion …
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Improving the simulation of a waterflooding recovery process using artificial neural networks
… with five years of actual field data. A close history matching for the cumulative oil and water production in the pilot project was achieved after scheduling 10--15% of the total water injection volume into the pilot area.
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Using waterflood performance to characterize flow-units in a heterogeneous reservoir
… was compared with 10 years of actual production history of both the wells. A close history matching was obtained with about 15--25% of total volume water injection rates into the individual patterns from each of the 6 wells. Though both the models were good in predicting the output, the second …
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Predicting permeability and flow capacity distribution with back-propagation artificial neural networks
… reservoir and helped to improve the production history matching.
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The Application of Single porosity Model to Predict the Performance of the Low Permeability Naturally Fractured Formations
… model. The production profiles were then history-matched with a single porosity model. The history matching results were then utilized to determine the single porosity model parameters that approximate the dual porosity behavior. The results suggested that the entire production history …
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Oil reservoir characterization using ensemble data assimilation
… attractive alternative to classical iterative history matching algorithms. A reduced representation of reservoir's states and parameters using discrete cosine transform is presented to improve the estimation problem and geological consistency of the results. The discrete cosine transform allows …
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A Computer Simulation of a Laboratory Coreflood , Using TRSl0-80 Surfactant in Berea
… was not known, the simulation was conducted on a history matching basis. Using experimentally determined input parameters to describe the other physical properties of the slug, but varying the effect of salinity on the phase behavior, only an approximate match of the experimental coreflood …
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