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Abstract Methane emission reductions are crucial for addressing climate change. It offers short-term benefits as it holds high short-term reductions in radiative forcing. Efforts towards the reduction of methane emissions are already underway. In this study, we compared and analyzed the mitigation benefits of cutting large amounts of methane emissions from the oil and gas sector on short-time scales with reducing an equivalent amount of carbon dioxide using carbon capture and storage (CCS). Characteristics of CCS are that it would require substantial infrastructure development and that it incorporates deployment delays. Results illustrate that prioritizing quickly deployable methane emission reduction alternatives that necessitate minimal construction is an efficient approach to achieve near-term climate change relief. Graphical abstract
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Dependence of CO2 Capture, Transport, and Storage on Reservoir Leakage Risk
In the carbon dioxide capture and storage (CCS) process, pipeline infrastructure may be used to redirect carbon dioxide (CO2) flows from leaking geologic CO2 storage reservoirs to those with storage integrity. We developed and implemented an approach that combined results from the Leakage Risk Monetization Model (LRiMM) that monetizes leakage risk from individual reservoirs with the Scalable infrastructure Model for CO2 capture and storage (SimCCS) to determine the optimal deployment of integrated capture-transport-storage systems that are robust to leakage. We demonstrate this approach using a case study of 27 known coal-fired power plants in the U.S. state of Michigan and 42 potential CO2 storage locations in the Michigan Sedimentary Basin. We compare three cases of leakage risk: (1) as a base case, reservoir leakage risk was not considered, (2) first-of-a-kind leakage risk, which does not consider the reduction in risk from re-directing CO2 from leaking reservoirs, and (3) nth-of-a-kind risk that considers this reduction in risk. The results highlight the selection of reservoirs that quantitatively considers leakage risk, geospatial differences in infrastructure deployment that considers leakage risk, and the nominal increase in costs and total pipeline lengths for these systems.
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- PAR ID:
- 10350883
- Date Published:
- Journal Name:
- Proceedings of the 15th International Conference on Greenhouse Gas Control Technologies, GHGT-15
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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