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China's offshore carbon storage project sequestrates large amount of carbon dioxide

Source: Xinhua

Editor: huaxia

2025-09-11 19:34:30

BEIJING, Sept. 11 (Xinhua) -- China's first offshore carbon dioxide storage demonstration project at the Pearl River Mouth Basin in south China has cumulatively sequestrated over 100 million cubic meters of carbon dioxide, according to Science and Technology Daily on Thursday.

This reduction in carbon emissions is equivalent to planting 2.2 million trees.

In May 2025, the country's first offshore carbon capture, utilization and storage (CCUS) project, situated at the Enping 15-1 oilfield, began operations. Since that, the CCUS project has been running safely for over 15,000 hours, with the peak daily gas injection volume reaching 210,000 cubic meters.

The Enping 15-1, currently Asia's largest offshore oil production platform, is located approximately 200 km southwest of China's southern city Shenzhen at a water depth of about 90 meters.

The oilfield contains high levels of carbon dioxide, which would traditionally be extracted with the oil, leading to corrosion of offshore platform facilities and submarine pipelines, while also increasing carbon emissions.

In the next 10 years, the oilfield will inject over 1 million tonnes of carbon dioxide back into the underground layers and drive an increase of 200,000 tonnes in crude oil production, according to the newspaper.