Potential method for measurement of CO2 leakage from underground sequestration fields using radioactive tracers
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Reduction of carbon dioxide (CO2) in the environment may avert the effects of global warming. One method to control CO2 emissions is to sequester it underground. Leakage from storage must be minimized for long-term control. Detection of leaks decreases the amount of CO2 released from storage, so onsite monitoring must be performed over large areas. Spiking the injected CO2 with an isotopic tracer can improve ground leak detection using fewer sampling stations, with greater accuracy than CO2 sensors and no interference from radon gas. The relative merits of sorbent materials, isotopic tracers, detection methods and potential interferences will be discussed.
KeywordsRadon Collection Efficiency Pacific Northwest National Laboratory Stable Isotope Tracer Liquid Scintillation Cocktail
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