China's state-owned CNOOC Ltd has brought onstream the Xijiang 23-1(XJ23-1)oil field in the Pearl River Mouth Basin in the South China Sea.XJ23-1 is located in Block XJ04 and lies 19km east of the XJ24-3 oil field.It is being developed via a production platform,an FPSO and 15 producing wells,said CNOOC Ltd.
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