Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Kristian Fossum"'
Publikováno v:
Frontiers in Applied Mathematics and Statistics, Vol 7 (2021)
With large amounts of simultaneous data, like inverted seismic data in reservoir modeling, negative effects of Monte Carlo errors in straightforward ensemble-based data assimilation (DA) are enhanced, typically resulting in underestimation of paramet
Externí odkaz:
https://doaj.org/article/c844a2277ed0424199e43c4ced8b32b0
Publikováno v:
Computational Geosciences
In ensemble-based data assimilation (DA), the ensemble size is usually limited to around one hundred. Straightforward application of ensemble-based DA can therefore result in significant Monte Carlo errors, often manifesting themselves as severe unde
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cadd8baee9ac1cb9ee23a92c8be36444
https://doi.org/10.1007/s10596-021-10125-3
https://doi.org/10.1007/s10596-021-10125-3
Publikováno v:
Computational Geosciences
We consider estimation of absolute permeability from inverted seismic data. Large amounts of simultaneous data, such as inverted seismic data, enhance the negative effects of Monte Carlo errors in ensemble-based Data Assimilation (DA). Multilevel (ML
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f382718ec8260d781e125470de2a7e7
https://hdl.handle.net/11250/3073272
https://hdl.handle.net/11250/3073272
Quantitative workflows utilizing real-time data to constrain uncertainty have the potential to significantly improve geosteering. Fast updates based on real-time data are particularly important when drilling in complex reservoirs with high uncertaint
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9d2954fc41c005ee6fb8fc8721cb9cc
http://arxiv.org/abs/2207.01374
http://arxiv.org/abs/2207.01374
Autor:
Nazanin Jahani, Joaquin Ambia Garrido, Sergey Alyaev, Kristian Fossum, Erich Suter, Carlos Torres-Verdín
Publikováno v:
Geophysics
Hydrocarbon reservoirs are often located in spatially complex and uncertain geologic environments, where the associated costs of drilling wells for exploration and development are notoriously high. These costs may be reduced with an optimized well-pl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa857a5256cef20f9979d3ad6707a708
https://hdl.handle.net/11250/2998569
https://hdl.handle.net/11250/2998569
Publikováno v:
Journal of Computational Science
The complexity of geomodelling workflows is a limiting factor for quantifying and updating uncertainty in real-time during drilling. We propose Generative Adversarial Networks (GANs) for parametrization and generation of geomodels, combined with Ense
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9100e167ba339004faee2db7b99aec7c
https://doi.org/10.1016/j.jocs.2022.101876
https://doi.org/10.1016/j.jocs.2022.101876
Publikováno v:
Computational Geosciences. 24:217-239
Multilevel ensemble-based data assimilation (DA) as an alternative to standard (single-level) ensemble-based DA for reservoir history matching problems is considered. Restricted computational resources currently limit the ensemble size to about 100 f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::418a93336230caa77ea6c704aab8b514
https://doi.org/10.1007/s10596-019-09911-x
https://doi.org/10.1007/s10596-019-09911-x
Autor:
Kristian Fossum, Nazanin Jahani, Carlos Torres-Verdín, Joaquín Ambía, Erich Suter, Sergey Alyaev
Publikováno v:
SPWLA 62nd Annual Online Symposium Transactions.
The cost of drilling wells on the Norwegian Continen-tal Shelf are extremely high, and hydrocarbon reservoirs are often located in spatially complex rock formations. Optimized well placement with real-time geosteering is crucial to efficiently produc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f61bbcf28fcc235f08a777917cb2674
https://doi.org/10.30632/spwla-2021-0105
https://doi.org/10.30632/spwla-2021-0105
Publikováno v:
Computational Science – ICCS 2021 ISBN: 9783030779634
ICCS (2)
ICCS (2)
During a geosteering operation the well path is intentionally adjusted in response to the new data acquired while drilling. To achieve consistent high-quality decisions, especially when drilling in complex environments, decision support systems can h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c72d4f11f0e8b090e950db085ec39b0
https://doi.org/10.1007/978-3-030-77964-1_36
https://doi.org/10.1007/978-3-030-77964-1_36
Publikováno v:
Journal of Petroleum Science and Engineering
Reservoir simulation models are used to forecast future reservoir behavior and to optimally manage reservoir production. These models require specification of hundreds of thousands of parameters, some of which may be determined from measurements alon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7658b2148873e8e1d7b9d88fffee853d
https://hdl.handle.net/11250/2776407
https://hdl.handle.net/11250/2776407