| Abstract: | Carbon capture,utilization and storage(CCUS)is considered as a very important technology for mitigating global climate change.Carbon dioxide(CO_2)injected into an underground reservoir will induce changes in its physical properties and the migration of CO_2 will be affected by many factors.Accurately understanding these changes and migration characteristics of CO_2 is crucial for selecting a CCUS project site,estimating storage capacity and ensuring storage security.In this paper,the basic principles of nuclear magnetic resonance(NMR)and magnetic resonance imaging(MRI)technologies are briefly introduced in the context of laboratory experiments related to CCUS.The types of NMR apparatus,experimental samples and testing approaches applied worldwide are discussed and analyzed.Then two typical NMR core analysis systems used in CCUS field and a self-developed high-pressure,low-field NMR rock core flooding experimental system are compared.Finally,a summary of the current deficiencies related to NMR applied to CCUS field is given and future research plans are proposed. |
