CNOOC Ltd. reported making a natural gas discovery with its Lingshui 25-1-1 exploration well drilled in the northeast part of Ledong Sag in the Qiongdongnan basin of the South China Sea. Average water depth is about 980 m.
The well was drilled and completed at a depth of 4,000 m and encountered an oil and gas pay zone with a total thickness of 73 m, CNOOC said. On test, the well produced at rates of 35.6 MMcfd of gas and 395 b/d of oil.
The discovery follows the Lingshui 17-2 discovery in the same basin in first-quarter 2014 (OGJ Online, Mar. 19, 2014).