CNOOC Ltd. discovered gas at the Weizhou 10-5 oil and gas field in Beibu Gulf basin in the central part of the Bohai Sea at 30 m average water depth.
Exploration well WZ10-5-1Sa was drilled to about 4,840 m TD and encountered an oil and gas pay zone of 283 m. Test results indicate that the well produces about 13.2 MMscfd of natural gas and about 800 b/d of crude oil.
The operator described the discovery as 'significant' to natural gas exploration in the Paleozoic granite buried hills in Beibu Gulf basin.
Alex Procyk is Upstream Editor at Oil & Gas Journal. He has also served as a principal technical professional at Halliburton and as a completion engineer at ConocoPhillips. He holds a BS in chemistry (1987) from Kent State University and a PhD in chemistry (1992) from Carnegie Mellon University. He is a member of the Society of Petroleum Engineers (SPE).
