ADNOC to expand CO2 capture
ADNOC plans to capture 5mn tons of CO2 per year before 2030
EOR The Abu Dhabi National Oil Company (ADNOC) will expand the capture, storage and utilisation of carbon dioxide (CO2), produced from either the Habshan-bab gas processing facilities or the Shah gas plant. A decision on which plant to capture the CO2 from first will be taken in 2019. The project will not interrupt ongoing production.
The additional CO2 capture will reduce ADNOC’S carbon footprint and liberate natural gas, previously used for oil field injection, for other more valuable purposes, while simultaneously addressing growing global demand for oil by boosting recovery from its maturing reservoirs.
The Shah plant, built and oper- ated by a joint venture between ADNOC and Occidental Petroleum Corporation, processes about 1.3bn standard cubic feet per day (scfd) of sour gas and associated condensates. By 2025, modifications to the facility would enable the gases to be captured as part of the sulphur recovery process and converted into CO2 for enhanced oil recovery (EOR). Using CCUS technology, more than 2.3mn tons per annum (120mn scfd) of CO2 will be captured and locked away underground.
The Habshan and Bab complex could capture 1.9mn tons per year of CO2 (100mn scfd). It can process up to 6.2bn scfd of associated gas, the largest in the UAE and one of the biggest in the Gulf.
“Not only does the technology help address environmental concerns by safely locking away CO2, but it also enables valuable and cleaner burning gas, previously used to enhance oil recovery, to be leveraged for other purposes, including power generation, desalination and industrial uses,” Omar Al Suwaidi said.
ADNOC will capture CO2 from its own operations to meet a sixfold increase in the utilisation of CO2 for EOR. It plans to capture about 5mn tons of CO2 per year before 2030. ADNOC has the capacity at Al Reyadah to capture 800,000 tons of CO2 annually. ADNOC was the first national oil company to pilot CO2 injection for EOR in 2009.