NOBLE GASES AS NATURAL TRACERS OF CARBON SEQUESTRATION IN INJECTION FIELDS

摘要

The storage of CO_2 in deep geological formations is an option for significantly reducing anthropogenic CO_2 emissions. It is vital to be able to track the fate of injected CO_2 within the targeted disposal site. Isotopic measurements have proved viable for investigating gas origin, gas-fluid-rock interaction and the duration of storage in natural gas deposits [1]. Depleted hydrocarbon fields, where gas is injected to enhance hydrocarbon extraction, arc natural analogues for CO_2 sequestration sites.