The application of noble gases and carbon stable isotopes in tracing the fate, migration and storage of CO2
The application of noble gases and carbon stable isotopes in tracing the fate, migration and storage of CO2
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稀有气体和碳稳定同位素在追踪二氧化碳的归宿、迁移和储存中的应用
DOI：
10.1016/j.egypro.2014.11.443
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Gilfillan S
中科院分区：
文献类型：
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作者：
Gilfillan S
稀有气体（He，Ne，Ar，Kr和H2O）在所有天然和工程CO2中都以痕量存在。它们已被证明是非常强大的示踪剂的CO2源，并结合碳稳定同位素，控制CO2的命运的地下过程。本文综述了近十年来稀有气体和稳定碳同位素示踪技术在CO2封存研究中的应用进展。我们概述了从天然CO2油藏研究中获得的初步经验教训，然后介绍了在追踪注入CO2-EOR油田的CO2方面取得的最新进展。我们展示了惰性气体在确定浅层地下水天然CO2泄漏中的应用，以及它们在成功驳斥韦伯恩CO2-EOR项目中CO2泄漏指控中的应用。我们的研究结果表明，已取得了良好的进展，在使用惰性气体，以确定短期和长期的命运CO2在地下和地下水相互作用的程度，注入CO2已经历的测定。然而，仍然有悬而未决的问题，特别是关于确切的行为的惰性气体相比，CO2和我们显示初步结果，从实验室研究，调查如何通过真实的岩石惰性气体运输相比，CO2。
The noble gases (He, Ne, Ar, Kr and Xe) are present in trace quantities in all natural and engineered CO2. They have proved to be extremely powerful tracers of both the CO2source, and when combined with carbon stable isotopes, the subsurface processes that control the fate of CO2. Here we present a summary of the progress made over the past decade in using noble gases and stable carbon isotope tracing techniques in CO2storage studies. We outline the initial lessons which were learnt from the study of natural CO2reservoirs, then show the recent progress that has been made in tracing CO2injected into a CO2-EOR field. We show the application of noble gases in determining natural CO2leakage to the shallow groundwater and their use in successfully refuting the allegations of CO2leakage made at the Weyburn CO2-EOR project. Our results illustrate that good progress has been made in using noble gases to determine both the short-term and long-term fate of CO2in the subsurface and in the determination of the extent of groundwater interaction that the injected CO2has undergone. However, there are still outstanding questions, particularly regarding the exact behaviour of the noble gases compared to CO2and we show preliminary results from a laboratory study to investigate how noble gas transport through real rock compares to that of CO2.