Uncertainty Quantification in Classifying Complex Geological Facies Using Bayesian Deep Learning

Understanding geological differences in a proved reservoir requires precise facies classification. Predicting facies from seismic data is frequently seen as an inverse uncertainty quantification problem in seismic reservoir characterization. Typically, the uncertainty in the model parameters that re...

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Main Authors: Touhid Mohammad Hossain, Maman Hermana, Makky Sandra Jaya, Hiroshi Sakai, Said Jadid Abdulkadir
Format: Article
Language:English
Published: IEEE 2022-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9933453/
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author Touhid Mohammad Hossain
Maman Hermana
Makky Sandra Jaya
Hiroshi Sakai
Said Jadid Abdulkadir
author_facet Touhid Mohammad Hossain
Maman Hermana
Makky Sandra Jaya
Hiroshi Sakai
Said Jadid Abdulkadir
author_sort Touhid Mohammad Hossain
collection DOAJ
description Understanding geological differences in a proved reservoir requires precise facies classification. Predicting facies from seismic data is frequently seen as an inverse uncertainty quantification problem in seismic reservoir characterization. Typically, the uncertainty in the model parameters that regulate the geographic distributions is being ignored. The target facies and its uncertainty can be determined by calculating the posterior distribution of the model parameters conditioned on the seismic data under a Bayesian inference framework. It is believed that such facies classification model has a unique set of model parameters that best fits it. The proposed work is unique in that it quantifies the epistemic uncertainty of the predicted facies in blind well conditioned on Seismic Amplitude Versus Offset (AVO-Seismic) attributes in the Bayesian inference framework. Under this framework, parameter uncertainties of the neural net. weights and biases are calculated using their posterior distributions from the ensamble models generated by Marcov-Chains Monte-Carlo (MCMC) by assuming that the prior values of the weights and biases are uninformative. The proposed approach is also demonstrated on Synthetic Amplitude Versus Offset (AVO-Synthetic) dataset (derived from the well log information) and we have found high relevance in the predicted results. For comparision, a plain Deep Learning and Deep learning with Monte Carlo Dropout are employed and the results indicate that our model performs more efficiently comparing to the others indicating the possibility of the model to be used in real world solution to adequate facies classication.
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spelling doaj.art-d2262749bf1744eeb618be5f49d53fa62022-12-22T04:35:18ZengIEEEIEEE Access2169-35362022-01-011011376711377710.1109/ACCESS.2022.32183319933453Uncertainty Quantification in Classifying Complex Geological Facies Using Bayesian Deep LearningTouhid Mohammad Hossain0https://orcid.org/0000-0003-3457-7388Maman Hermana1Makky Sandra Jaya2Hiroshi Sakai3https://orcid.org/0000-0001-7847-030XSaid Jadid Abdulkadir4https://orcid.org/0000-0003-0038-3702Department of Geosciences, Centre for Subsurface Imaging (CSI), Universiti Teknologi PETRONAS, Seri Iskandar, MalaysiaDepartment of Geosciences, Centre for Subsurface Imaging (CSI), Universiti Teknologi PETRONAS, Seri Iskandar, MalaysiaGroup Research and Technology (GR&T), PETRONAS Research Sdn Bhd, Bandar Baru Bangi, MalaysiaDepartment of Basic Sciences, Faculty of Engineering, Kyushu Institute of Technology, Fukuoka, JapanDepartment of Computer and Information Sciences (CIS), Universiti Teknologi PETRONAS, Seri Iskandar, MalaysiaUnderstanding geological differences in a proved reservoir requires precise facies classification. Predicting facies from seismic data is frequently seen as an inverse uncertainty quantification problem in seismic reservoir characterization. Typically, the uncertainty in the model parameters that regulate the geographic distributions is being ignored. The target facies and its uncertainty can be determined by calculating the posterior distribution of the model parameters conditioned on the seismic data under a Bayesian inference framework. It is believed that such facies classification model has a unique set of model parameters that best fits it. The proposed work is unique in that it quantifies the epistemic uncertainty of the predicted facies in blind well conditioned on Seismic Amplitude Versus Offset (AVO-Seismic) attributes in the Bayesian inference framework. Under this framework, parameter uncertainties of the neural net. weights and biases are calculated using their posterior distributions from the ensamble models generated by Marcov-Chains Monte-Carlo (MCMC) by assuming that the prior values of the weights and biases are uninformative. The proposed approach is also demonstrated on Synthetic Amplitude Versus Offset (AVO-Synthetic) dataset (derived from the well log information) and we have found high relevance in the predicted results. For comparision, a plain Deep Learning and Deep learning with Monte Carlo Dropout are employed and the results indicate that our model performs more efficiently comparing to the others indicating the possibility of the model to be used in real world solution to adequate facies classication.https://ieeexplore.ieee.org/document/9933453/Uncertainty quantificationBayesian deep learningfacies classification
spellingShingle Touhid Mohammad Hossain
Maman Hermana
Makky Sandra Jaya
Hiroshi Sakai
Said Jadid Abdulkadir
Uncertainty Quantification in Classifying Complex Geological Facies Using Bayesian Deep Learning
IEEE Access
Uncertainty quantification
Bayesian deep learning
facies classification
title Uncertainty Quantification in Classifying Complex Geological Facies Using Bayesian Deep Learning
title_full Uncertainty Quantification in Classifying Complex Geological Facies Using Bayesian Deep Learning
title_fullStr Uncertainty Quantification in Classifying Complex Geological Facies Using Bayesian Deep Learning
title_full_unstemmed Uncertainty Quantification in Classifying Complex Geological Facies Using Bayesian Deep Learning
title_short Uncertainty Quantification in Classifying Complex Geological Facies Using Bayesian Deep Learning
title_sort uncertainty quantification in classifying complex geological facies using bayesian deep learning
topic Uncertainty quantification
Bayesian deep learning
facies classification
url https://ieeexplore.ieee.org/document/9933453/
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AT mamanhermana uncertaintyquantificationinclassifyingcomplexgeologicalfaciesusingbayesiandeeplearning
AT makkysandrajaya uncertaintyquantificationinclassifyingcomplexgeologicalfaciesusingbayesiandeeplearning
AT hiroshisakai uncertaintyquantificationinclassifyingcomplexgeologicalfaciesusingbayesiandeeplearning
AT saidjadidabdulkadir uncertaintyquantificationinclassifyingcomplexgeologicalfaciesusingbayesiandeeplearning