3D seismic forward modeling from the multiphysical inversion at the Ketzin CO_(2) storage site  

Ketzin二氧化碳地质封存场地的三维时移地震数据正演模拟研究

作　　者：Yi-kang Zheng Chong Wang Hao-hong Liang Yi-bo Wang Rong-shu Zeng 郑忆康;王冲;梁浩鸿;王一博;曾荣树(中国科学院地质与地球物理研究所,中国科学院油气资源研究重点实验室,北京100029;中国科学院大学,地球与行星科学学院,北京100049;中国科学院地质与地球物理研究所,中国科学院页岩气与地质工程重点实验室,北京100029)

机构地区：[1]Key Laboratory of Petroleum Resource Research,Institute of Geology and Geophysics,Chinese Academy of Sciences,100029 Beijing,China [2]College of Earth and Planetary Sciences,University of Chinese Academy of Sciences,Beijing 100049,China [3]Key Laboratory of Shale Gas and Geoengineering,Institute of Geology and Geophysics,Chinese Academy of Sciences,100029 Beijing,China

出　　处：《Applied Geophysics》2024年第3期593-605,620,共14页应用地球物理（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.42025403);the Youth Innovation Promotion Association,Chinese Academy of Sciences(Grant No.2023074).

摘　　要：From June 2008 to August 2013,approximately 67 kt of CO_(2) was injected into a deep saline formation at the Ketzin pilot CO_(2) storage site.During injection,3D seismic surveys have been performed to monitor the migration of sequestered CO_(2).Seismic monitoring results are limited by the acquisition and signal-to-noise ratio of the acquired data.The multiphysical reservoir simulation provides information regarding the CO_(2) fluid behavior,and the approximated model should be calibrated with the monitoring results.In this work,property models are delivered from the multiphysical model during 3D repeated seismic surveys.The simulated seismic data based on the models are compared with the real data,and the results validate the effectiveness of the multiphysical inversion method.Time-lapse analysis shows the trend of CO_(2) migration during and after injection.2008年6月至2013年8月,在Ketzin二氧化碳封存试验场地有大约67000吨二氧化碳被注入到深部咸水层中。在注入过程中,开展了三维时移地震采集,监测地下二氧化碳流体的运移情况。地震监测结果会受到数据采集和信噪比的限制,而基于多物理场信息约束的储层模拟能够为预测二氧化碳流体的运移提供重要依据,并能够根据地震监测结果对地质模型进行校准。在本项研究中,我们从多物理场信息约束的储层模拟中提取物性参数模型,并开展了三维地震数据的正演模拟。储层模型模拟的地震数据与实际数据的相似性验证了多物理场信息约束的储层模拟方法的有效性,时移地震分析揭示了注入期间及注入后二氧化碳流体的运移趋势。

关 键 词：Seismic forward modeling reservoir simulation CO_(2)storage time-lapse analysis 

分 类 号：P631.44[天文地球—地质矿产勘探] X701[天文地球—地质学]