The China National Offshore Oil Company (CNOOC) Limited announced Tuesday the successful completion of BZ19-4N-2D, an appraisal well drilled in East China's Bohai Bay.

BZ19-4N-2D, located on Structure BZ 19-4N on Block 11/19, was drilled in 23 meters of water to a total depth of 2,390 meters. The drilling of BZ19-4N-2D was commenced in August this year. The well encounters 98.5 meters of pay zones.

Two drill stem tests were conducted in two intervals. During the tests, the well flew about 770 barrels of oil per day and 0.15 million cubic feet of gas through a 7.94 mm choke.

Zhu Weilin, vice president of the company and general manager of the exploration department said that the successful result of the appraisal is the continuation of CNOOC Ltd.'s effective exploration programs and activities offshore Bohai.

Block 11/19 is a production-sharing-contract (PSC) block with ChevronTexaco as the only partner.

CNOOC Ltd., incorporated in Hong Kong, is a 70.64 percent held subsidiary of the China National Offshore Oil Corporation, China's largest offshore oil producer.

Source: Xinhua