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首页> 外文期刊>International Journal of Greenhouse Gas Control >Modeling 3D time-lapse seismic response induced by CO2 by integrating borehole and 3D seismic data - A case study at the Ketzin pilot site, Germany
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Modeling 3D time-lapse seismic response induced by CO2 by integrating borehole and 3D seismic data - A case study at the Ketzin pilot site, Germany

机译：通过整合钻孔和3D地震数据来模拟由CO2引起的3D延时地震响应-以德国Ketzin试点为例

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摘要

In order to simulate the 3D time-lapse seismic response from real data in a consistent manner detailed 3D property models at the Ketzin pilot site were constructed by robustly integrating borehole and 3D reflection seismic data. The spatial CO2 distribution and the detailed CO2 density in the reservoir were derived from dynamic flow simulations that had been history-matched to the site monitoring data. Changes in velocity and density after CO2 injection were estimated utilizing the CO2 saturation distributions at two repeat times and fluid substitution models. 4D seismic data were generated by convolving the property models at different times with an extracted wavelet.
机译：为了以一致的方式从实际数据中模拟3D时移地震响应，通过将井眼和3D反射地震数据进行稳健的集成，在Ketzin试点建立了详细的3D属性模型。储集层中的空间CO2分布和详细的CO2密度是根据与现场监测数据历史匹配的动态流模拟得出的。利用两个重复时间的CO2饱和度分布和流体替代模型估算注入CO2后的速度和密度变化。通过将属性模型在不同时间与提取的小波进行卷积来生成4D地震数据。

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