The Chinese government has confirmed the latest deep-water gas discovery Baodao 21-1 in the South China Sea’s Qiongdongnan basin holds up to 50 billion cubic metres of proven gas in place.

Baodao 21-1 is located in the Baodao trough in water depths between 660 and 1570 metres and is part of the Paleogene Lingshui formation known for its gas condensate reservoirs.

The Baodao 21-1-1 discovery well encountered 113 metres of pay when drilling reached 5188 metres, said well operator CNOOC Limited.