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首页> 外文会议>International Conference on Greenhouse Gas Control Technologies >Assessment of alleged CO_2 leakage at the Kerr farm using a simple process-based soil gas technique: Implications for carbon capture, utilization, and storage (CCUS) monitoring
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Assessment of alleged CO_2 leakage at the Kerr farm using a simple process-based soil gas technique: Implications for carbon capture, utilization, and storage (CCUS) monitoring

机译：使用简单的基于过程的土壤气体技术评估Kerr Farm的据称CO_2泄漏：对碳捕获，利用和储存（CCU）监测的影响

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This paper describes a new technique for vadose zone monitoring above CCUS sites, its use as a response tool to landowner concerns about CCUS, and its wider implications for vadose zone monitoring at CCUS sites. The processbased method uses ratios of coexisting gases (CO_2, O_2, N_2 and CH_4) to distinguish promptly a leakage signal from natural vadose zone CO_2 without the use of background monitoring. This method was applied at the Kerr farm, a site of alleged leakage from the IEAGHG Weyburn-Midale CO_2 Monitoring and Storage Project (WMP) reservoir and showed that no leakage had occurred. These results agreed with two other studies conducted at the Kerr site that used a variety of methods including comparisons to the large historical WMP data set. The successful use of the processbased method at the Kerr site shows that background monitoring may not be necessary for leakage detection by soil gas methods. Instead, we introduce the concept of vadose zone characterization which requires a one-time assessment of spatial chemical variability pre-injection, rather than repeated background measurements. In addition, we suggest that a monitoring approach not requiring prolonged background measurements is most efficient as a response tool targeted to specific events and areas of concern thereby simplifying vadose zone monitoring without sacrificing accuracy.
机译：本文介绍了CCU站点上面的Vadose区监测的新技术，它用作土地所有者对CCU的响应工具的用途，以及其在CCU站点对Vadose区监测的更广泛影响。过程基方法使用共存气体（CO_2，O_2，N_2和CH_4）的比率来区分来自天然VADOSE区CO_2的迅速泄漏信号，而不使用背景监测。该方法是在Kerr Farm应用的，该方法是IEAGHG Weyburn-Midale Co_2监测和存储项目（WMP）水库的涉嫌泄漏的部位，并显示出没有发生泄漏。这些结果同意在克尔特网站上进行的另外两项研究，这些研究使用了各种方法，包括对大型历史WMP数据集的比较。在KERR网站上的成功使用过程中的方法表明，通过土壤气体方法泄漏检测可能不需要背景监测。相反，我们介绍了Vadose区表征的概念，该概念需要一次性评估空间化学变化预注射，而不是重复的背景测量。此外，我们表明，不需要长时间测量的监测方法是最有效的，作为针对特定事件的响应工具以及令人担忧的区域，从而简化了VADOSE区监测而不会牺牲精度。

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