Chinese governmental bodies have certified the proven in-place natural gas and condensate of CNOOC Ltd.’s Baodao 21-1 gas field at over 50 billion cu m and 3 million cu m, respectively, CNOOC said in a release Oct. 19.
Baodao 21-1 lies in Baodao Sag, Qiongdongnan basin, Western South China Sea in water depths of 660-to 1,570 m. The main gas-bearing layer is the Paleogene Lingshui formation and the discovery is condensate gas reservoirs. Discovery well Baodao 21-1-1 completed at hole depth of 5,188 m, encountering 113 m of pay zone. The well is tested to produce an average 587,000 cu m/d of natural gas.
Baodao 21-1 gas-bearing structure will host the first deep-water deep-stratum large gas field in the South China Sea, realizing the largest discovery in more than half a century in Songnan-Baodao Sag, the operator said.