Reducing the upstream carbon intensity of Equinor’s oil operations is a major component of its ambition to reach net zero emissions by 2050. Most offshore oil production is powered by CO₂-emitting gas turbines and on average, about 15 kg of CO2 were generated for each barrel of oil equivalent (boe) produced worldwide in 2021.
In 2018, when Petrobras announced its support for the World Bank’s Zero Routine Flaring by 2030 initiative, it simultaneously announced that all assets under the company’s operational control were already exporting or reinjecting gas, and therefore did not require routine flaring of gas production.
Average gas use in 2018 was 97%, an improvement of 23% in just 10 years. As a result of reduced flaring and other initiatives, upstream carbon intensity was reduced by 25% from 2009 to 2015, and a further improvement of more than 32% is expected by 2025, through a carbon mitigation programme linked to public targets.
Petrobras has also applied a number of innovative technologies to enable the separation of carbon dioxide from natural gas in key pre-salt areas, so that it is reinjected into the reservoir in ultra deep waters, rather than being vented. Petrobras won an award for this at the offshore technology conference 2015.
Almost 10 million tonnes of carbon dioxide have already been reinjected be-tween 2008 and 2018. Petrobras estimates that total accumulated reinjection will amount to more than 40 million tonnes of carbon dioxide by 2025.
Petrobras is sharing its experiences in these areas to accelerate progress in reducing the carbon intensity of both oil and gas production. For more information, see Petrobras’s Climate Change Supplement petrobr.as/climate
What OGCI member companies are doing to reduce carbon intensity
Member companies are focusing on flaring reduction, efficiency improvements, electrification and the integration of renewables in their operations.