The presence of impurities in captured CO2 leads to careful consideration during the design and development of operating philosophies of CCS transport networks. While the impact of impurities on CO2 pipeline operation during steady-state and transient conditions is routinely investigated, little attention has been paid to upset scenarios, in particular, events where the fluid provided by the emitter does not meet the network specification.

In this paper, we study a range of scenarios in which the fluid entering the transport network deviates from the grid specification. We focus on short-term temporal excursions of hydrogen content in the fluid and their impact on the operability of the system. Single- and multi-source networks have been considered in the study, the transient response of the network has been analysed, and challenges due to the upset events have been identified.

Keywords:
production monitoring, pipeline, isavft ltd, subsurface storage, production control, co 2, reservoir surveillance, climate change, variation, hydrogen concentration
Subjects:
Well & Reservoir Surveillance and Monitoring, Pipelines, Flowlines and Risers, Fluid Characterization, Storage Reservoir Engineering, Environment, CO2 capture and sequestration, Climate change
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