Multi-objective Optimization of CO2 Recycling Operations for CCUS in a Brazilian Pre-Salt Benchmark Model

Hydra Walesca Rodrigues, Eric James Mackay, Daniel Arnold

Research output: Contribution to conferencePaperpeer-review

Abstract

This study evaluates the potential of recycling carbon dioxide (CO2) in the associated gas for Carbon Capture Utilization and Storage (CCUS) in pre-salt carbonate reservoirs. We performed compositional subsurface modelling of a hypothetical field for multi-objective optimization, aiming at minimizing carbon emissions whilst maximizing the project’s economics. Although no absolute reduction in total CO2 emissions was met with economic improvement, all simulated CCUS scenarios yielded a lower carbon footprint oil, with 41% reduction in operational emissions and up to 20% increase in Net Present Value. The best CCUS case presented break-even oil price of 39.2 USD/STB and CO2 abatement cost of negative 92.4 USD/tCO2 abated, also showing significant reduction in number of squeeze treatments and cost of calcite scale management.
Original languageEnglish
Number of pages12
DOIs
Publication statusPublished - 24 Mar 2021
Event15th International Conference on Greenhouse Gas Control Technologies 2021 - Virtual, Abu Dhabi, United Arab Emirates
Duration: 15 Mar 202118 Mar 2021

Conference

Conference15th International Conference on Greenhouse Gas Control Technologies 2021
Abbreviated titleGHGT-15
Country/TerritoryUnited Arab Emirates
CityAbu Dhabi
Period15/03/2118/03/21

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