Passive Seismic Imaging of CO2 Sequestration At Weyburn
Passive Seismic Imaging of CO2 Sequestration At Weyburn
复制标题
韦伯恩二氧化碳封存的被动地震成像
DOI：
10.1190/1.1842409
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
H. Fabriol
中科院分区：
文献类型：
--
作者：
S. Maxwell;D. White;H. Fabriol
本文介绍了在加拿大萨斯喀彻温省Weyburn油田进行的被动地震成像案例研究，以跟踪二氧化碳注入过程中的气体运动。该项目是二氧化碳封存多学科研究的一部分。一个由8个三轴检波器组成的监测阵列被永久部署在一口废弃井中，以监测现场的诱发地震活动。在距离阵列50米的一口井开始注入二氧化碳后，立即记录了诱发微地震事件。这些事件聚集在一个离散的区域，从注入井延伸到邻近的水平生产井。同时，该水平井的生产数据表明，天然气产量显著增加。该案例研究证明了成像注气技术与被动地震监测技术在二氧化碳封存和提高采收率方面的适用性。
This paper describes a passive seismic imaging case study to track gas movement during CO2 injection in the Weyburn Field, Saskatchewan, Canada. The project is part of a multi-disciplinary investigation of CO2 sequestration. A monitoring array of 8 triaxial geophones was permanently deployed in an abandoned well, to monitor induced seismicity in the field. Induced microseismic events were recorded immediately following the start of CO2 injection in a well 50 m away from the array. The events clustered in a discrete region extending from the injection well to a neighbouring horizontal production well. Production data from this horizontal well indicated significant increases in gas production at the same time. This case study demonstrates the applicability of imaging gas injection with passive seismic monitoring, for both CO2 sequestration and enhanced oil recovery.