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Keywords: ensemble
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Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 23–April 1, 2021
Paper Number: IPTC-21239-MS
... allocation factors from the previous step, the tool automatically tunes various petrophysical parameters (i.e. porosity, relative permeability, etc.) in the physics model for each injector-producer pair across all the connected layers to match the oil and water production in each producer. An ensemble of...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, January 13–15, 2020
Paper Number: IPTC-19856-Abstract
... This study aims at enhancing reservoir characterization through simultaneous history matching of time-lapse seismic and electromagnetic (EM) data. We propose an efficient ensemble-based history-matching approach by exploiting the complementary nature of these data types. The developed...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 26–28, 2019
Paper Number: IPTC-19142-MS
... Abstract The ensemble based methods (especially various forms of iterative ensemble smoothers) have been proven to be effective in calibrating multiple reservoir models, so that they are consistent with historical production data. However, due to the complex nature of hydrocarbon reservoirs...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, November 14–16, 2016
Paper Number: IPTC-18868-MS
... paper, we efficiently solved this problem using an ensemble-based approach in combination with an adaptive pluri-Gaussian facies modelling scheme. We demonstrate the procedure on a medium size field with 15 years of production history. During the dynamic data conditioning, clear trends are established...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, December 6–9, 2015
Paper Number: IPTC-18291-MS
... Abstract Within recent years there have been significant research efforts towards building an ensemble of reservoir models to quantify subsurface uncertainty. The data assimilation and model calibration strategy is rapidly moving away from conditioning just a single model as in almost every...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 26–28, 2013
Paper Number: IPTC-16725-MS
... ensemble Kalman filter (EnKF) method. Layered homogeneous and heterogeneous reservoir examples verified the complimentary nature of these two types of data. The porosities and permeabilities in the layered reservoir obtained after assimilating both types of data are comparable to assimilating pressure...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, December 7–9, 2009
Paper Number: IPTC-13748-MS
... Abstract In this work the Ensemble Kalman Filter (EnKF) is used to history match the simulation model and to assess the remaining uncertainty on production forecast for a deep-water under saturated oil reservoir. The reservoir was originally matched by the company asset team using a...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, December 7–9, 2009
Paper Number: IPTC-14074-MS
... Abstract The present work evaluates the use of hierarchical ensemble Kalman filter (HEnKF) for updating real size reservoir models. It is tested on the large scale Brugge field SPE benchmark study and we chose to revisit the first cycle of this case study (Peters et al., 2009). The Brugge...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, December 7–9, 2009
Paper Number: IPTC-14020-MS
... Abstract Even though the ensemble Kalman filter (EnKF) is widely used, history matching reservoirs with facies description has proven to be a major challenge. A preferred technique for estimating large-scale facies fields within the petroleum industry is still missing. In this paper we present...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, November 21–23, 2005
Paper Number: IPTC-11024-MS
... process. This technique should be able to rapidly and continuously update reservoir models assimilating the up-to-date measured production data so that the performance predictions and the associated uncertainty are up-to-date for optimization calculations. The ensemble Kalman filter (EnKF) method has been...

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