2019
DOI: 10.1016/j.petrol.2019.04.079
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Influence of the Kalman gain localization in adaptive ensemble smoother history matching

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Cited by 7 publications
(3 citation statements)
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“…Several authors reported the need to use some localization technique when the assimilation is performed in largescale models and using a limited ensemble size [e.g., 18,[24][25][26][27][28][29]31]. One widely method used in the history matching applies the localization directly on the Kalman gain matrix (…”
Section: Localizationmentioning
confidence: 99%
See 1 more Smart Citation
“…Several authors reported the need to use some localization technique when the assimilation is performed in largescale models and using a limited ensemble size [e.g., 18,[24][25][26][27][28][29]31]. One widely method used in the history matching applies the localization directly on the Kalman gain matrix (…”
Section: Localizationmentioning
confidence: 99%
“…The case study selected to verify the ensemble influence is the benchmark UNISIM-I, since some works have already performed history matching in UNISIM-I using the ES-MDA (e.g., Morosov and Schiozer [19], Silva et al [24], Soares et al [25], Emerick [26], Ranazzi and Sampaio [27]). In Ranazzi and Sampaio [28], the influence of the localization was verified in the adaptive scheme, where lower correlation lengths resulted in more required iterations to perform the entire algorithm. In Sect.…”
Section: Introductionmentioning
confidence: 99%
“…The case study selected to check the ensemble influence is the benchmark UNISIM-I, since some works already performed history matching in UNISIM-I using the ES-MDA (e.g.,Morosov and Schiozer (2017),Silva et al (2017),Soares, Maschio and Schiozer (2018), Emerick (2018),Ranazzi and Sampaio (2018)). InRanazzi and Sampaio (2019), the influence of the localization was verified in the adaptive scheme, where lower correlation lengths resulted in more required iterations to perform the entire algorithm. In Section 2.2, we define the history matching problem and the adaptive ES-MDA methodology, in Section 2.3 we describe the benchmark UNISIM-I and the experiments that we run to the discussion.…”
mentioning
confidence: 96%