The China National Offshore Oil Corporation (CNOOC) announced Tuesday that it has made a major discovery in the Bohai Sea, successfully appraising two wells in the sea's "Qinhuangdao 29-2" structure.

The CNOOC said in an online statement that it has discovered 218.4 meters of oil pay zones in the Qinhuangdao 29-2E-4 well, with a thickness of up to 133.7 meters.

The well is capable of producing 6,600 barrels of crude oil and 4.5 million cubic feet of natural gas per day, according to the company's evaluation.

The Qinhuangdao 29-2 structure is located in the central and northern part of Bohai, with an average depth of 27 meters.