CNOOC Limited, one of China’s largest producers of offshore crude oil and natural gas, has announced that it has made a large-sized oil and gas discovery at Bozhong 13-2 in Bohai Bay.

The Bozhong 13-2 structure is located in the south-western Ring of Bozhong Sag in the Bohai Bay (one of the three major bays of the Bohai Sea, the northwestern and innermost gulf of the Yellow Sea) with an average water depth of about 23.2 metres.

The discovery well BZ13-2-2 was drilled and completed at a depth of 5,223 metres, and encountered oil pay zones with a total thickness of approximately 346 metres.

The well was tested to produce an average of approximately 1,980 barrels of crude oil and 5.25 million cubic feet of natural gas per day.

Zhou Xinhuai, General Manager of Exploration Department at CNOOC Limited said the successful exploration of the Bozhong 13-2 structure is another remarkable exploration achievement for the company to continuously enhancing its efforts in oil and gas exploration and production in offshore China.

“After obtaining Bozhong 19-6 large-sized condensate gas field, the company has made significant breakthrough in the exploration of another type of buried hill in Bohai, which not only has important promotion value, but also demonstrates promising exploration prospect in Bohai,” Mr Xinhuai said.