A knowledge-based heterogeneity characterization framework for 3D steam-assisted gravity drainage reservoirs

作者:

Highlights:

• A hybrid deep learning-based workflow is developed to infer 3D shale heterogeneities.

• Novel inputs and outputs parameterization schemes are explored via wavelet transform.

• Deep learning is applied as a proxy of flow simulation to evaluate objective functions.

• Fast and satisfactory heterogeneities characterization in 3D reservoirs are obtained.

• Multiple characterized models exhibit similar shale distribution as the true model.

摘要

•A hybrid deep learning-based workflow is developed to infer 3D shale heterogeneities.•Novel inputs and outputs parameterization schemes are explored via wavelet transform.•Deep learning is applied as a proxy of flow simulation to evaluate objective functions.•Fast and satisfactory heterogeneities characterization in 3D reservoirs are obtained.•Multiple characterized models exhibit similar shale distribution as the true model.

论文关键词:SAGD,Deep learning,Convolutional neural network,Proxy model,Shale barriers,Heterogeneity modeling,Optimization

论文评审过程:Received 15 July 2019, Revised 29 November 2019, Accepted 30 November 2019, Available online 9 December 2019, Version of Record 24 February 2020.

论文官网地址:https://doi.org/10.1016/j.knosys.2019.105327