CNOOC has struck an oil and gas pay zone in the Beibu Gulf Basin of the South China Sea.

The Weizhou 10-5 oil and gas field has an average water depth of about 120 ft. Exploration well WZ10-5-1Sa encountered an oil and gas pay zone of 930 ft, with a total drilled depth of about 16,000 ft.

The test results indicate that the well produces about 13.2 MMcf/d of natural gas and about 800 bbl/d of crude.

“The breakthrough in the exploration of Paleozoic granite buried hills reveals the vast exploration prospects of the buried hills in the Beibu Gulf Basin,” said Xu Changgui, CNOOC’s chief geologist. “It will also provide guidance for exploration in similar fields offshore China."