Transitioning CO2-EOR Field to Dedicated CO2 Storage: Risk Considerations and Quantifications

Conference · Wed Mar 05 04:00:00 EST 2025

DOI:https://doi.org/10.2172/2526568· OSTI ID:2526568

Liu, Guoxiang ^[1]; Khalaf, Mina ^[2]; Dilmore, Robert ^[1]; Mehana, Mohamed ^[3]; Cunha, Luciane ^[1]; Strazisar, Brian ^[1]

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1. NETL
2. NETL Site Support Contractor, National Energy Technology Laboratory
3. Los Alamos National Laboratory (LANL)

Presentation slides on “Transitioning CO2-EOR Field to Dedicated CO2 Storage: Risk Considerations and Quantifications” for the CCUS 2025 conference held in Houston, Texas March 3-5, 2025. CO2 injection wells for enhanced oil recovery (EOR) are currently regulated as Class II wells under the U.S. Environmental Protection Agency’s (EPA) Underground Injection Control (UIC) program, while dedicated geological CO2 storage (GCS) wells are considered Class VI wells. The UIC classification of wells for a transitioning CO2-EOR facility has the potential to substantially impact the feasibility of operations. This paper reports a case study of risk assessment of this transition, including areas review, plume stability and pressure transient and its impacts in dedicated CO2 storage.

• Research Organization: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
• Sponsoring Organization: USDOE Office of Fossil Energy and Carbon Management (FECM); USDOE Office of Fossil Energy and Carbon Management (FECM), Office of Carbon Management (FE-20)
• OSTI ID: 2526568
• Country of Publication: United States
• Language: English

Related Subjects

Class II to Class VI transition
carbon storage
risk considerations
risk quantification