Simulations of subsea CO2 leakage scenarios.

Dissanayake, Anusha L., Nordam, Tor and Gros, Jonas (2021) Simulations of subsea CO2 leakage scenarios. [Paper] In: Trondheim Conference on CO2 Capture, Transport and Storage. , 21.-23.06.2021, Trondheim, Norway .

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Abstract

Subsea carbon dioxide leakages from geological storage complexes and transmission lines may pose a threat to the
marine ecosystem in their vicinity. For high leakage flow rates (100 kg/s), buoyant dynamic plumes will form and,
in shallow water depths (100-300 m) such as in continental shelves, they may reach the water surface thereby
releasing gases to the atmosphere. Here, we present simulations of subsea releases of CO2 at varying scales, such as
seeps, point source plumes and line source plumes, and we discuss their behaviors. The simulated release conditions
and water depths are representative of potential storage area on the Norwegian Continental Shelf. Simulations are
performed with the TAMOC model, a multiphase-integral plume modeling suite developed and validated for subsea
gas and oil releases.

Document Type: Conference or Workshop Item (Paper)
Keywords: subsea CO2 leakages, integral plume model, multi-phase plumes, pipeline fracture
Research affiliation: OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-MG Marine Geosystems
Date Deposited: 30 Jun 2021 06:46
Last Modified: 30 Jun 2021 06:46
URI: https://oceanrep.geomar.de/id/eprint/53092

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