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- W2896043359 abstract "Summary Ensemble-based methods are among the state-of-the-art history matching algorithms. In practice, they often suffer from ensemble collapse, a phenomenon that deteriorates history matching performance. To prevent ensemble collapse, it is customary to equip an ensemble history matching algorithm with a certain localization scheme. Conventional localization methods use distances between physical locations of model variables and observations to modify the degree of observations’ influence on model updates. Distance-based localization methods work well in many problems, but they also suffer from some long-standing issues. In this work, we propose an adaptive localization scheme that exploits the correlations between model variables and observations for localization. We elaborate how correlation-based adaptive localization can overcome the noticed issues arising in conventional distance-based localization. To demonstrate the efficacy of correlation-based adaptive localization, we apply it to history-match the real production data of the full Norne field model using an iterative ensemble smoother (IES), and compare the history matching results to those obtained by using the same IES but with distance-based localization. Our study indicates that, in comparison to distance-based localization, correlation-based localization not only achieves better performance in terms of data mismatch, but also is more convenient to implement and use in practical history matching problems." @default.
- W2896043359 created "2018-10-26" @default.
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- W2896043359 date "2018-06-11" @default.
- W2896043359 modified "2023-09-24" @default.
- W2896043359 title "History Matching Using an Iterative Ensemble Smoother with Correlation-Based Adaptive Localization - A Real Field Case S" @default.
- W2896043359 doi "https://doi.org/10.3997/2214-4609.201800836" @default.
- W2896043359 hasPublicationYear "2018" @default.
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