论文标题
最新的发展结合了合奏更光滑和深层生成网络的相匹配的相匹配
Recent Developments Combining Ensemble Smoother and Deep Generative Networks for Facies History Matching
论文作者
论文摘要
合奏Smoother是目前可用于历史匹配的最成功,最有效的技术之一。但是,由于这些方法依赖于高斯假设,因此当用复杂的相分布描述先前的地质时,它们的性能会严重降低。受到图像和视频生成等领域的深层生成网络获得的令人印象深刻的结果的启发,我们开始了一项针对使用自动编码器网络来构建相机模型的连续参数化的调查。在以前的出版物中,我们将卷积变分的自动编码器(VAE)与合奏更加顺畅,并与多个数据同化的多个数据同化(ES-MDA)相匹配,以匹配用多点地理学生成的模型。尽管我们先前出版物中报告了良好的结果,但设计的参数化的主要限制是,它不允许在整体更平滑更新过程中应用基于距离的本地化,这将其应用程序限制在大规模问题中。 目前的工作是该研究项目的延续,重点是两个方面:首先,我们基准了七个不同的配方,包括VAE,生成对抗网络(GAN),Wasserstein Gan,Wasserstein GAN,变量自动编码GAN,主体组件分析(PCA),带有Cycle GAN,带有Cycle gan,PCA,具有转移样式网络和风格损失的PCA。这些配方在与通道相的合成历史相匹配问题中进行了测试。其次,我们提出了两种策略,允许将基于距离的本地化与深度学习参数化。
Ensemble smoothers are among the most successful and efficient techniques currently available for history matching. However, because these methods rely on Gaussian assumptions, their performance is severely degraded when the prior geology is described in terms of complex facies distributions. Inspired by the impressive results obtained by deep generative networks in areas such as image and video generation, we started an investigation focused on the use of autoencoders networks to construct a continuous parameterization for facies models. In our previous publication, we combined a convolutional variational autoencoder (VAE) with the ensemble smoother with multiple data assimilation (ES-MDA) for history matching production data in models generated with multiple-point geostatistics. Despite the good results reported in our previous publication, a major limitation of the designed parameterization is the fact that it does not allow applying distance-based localization during the ensemble smoother update, which limits its application in large-scale problems. The present work is a continuation of this research project focusing in two aspects: firstly, we benchmark seven different formulations, including VAE, generative adversarial network (GAN), Wasserstein GAN, variational auto-encoding GAN, principal component analysis (PCA) with cycle GAN, PCA with transfer style network and VAE with style loss. These formulations are tested in a synthetic history matching problem with channelized facies. Secondly, we propose two strategies to allow the use of distance-based localization with the deep learning parameterizations.