While the state-run company has made no public announcement, a pre-feasibility study was well under way, CNOOC and other industry officials said. CNOOC was already talking to global engineering firms about possible joint design of the vessel, two industry officials added.
FLNG ships are ocean-based liquefaction plants that can be positioned above reserves to chill extracted gas and load it into LNG tankers for delivery. That could make fields too remote or too small to develop using undersea pipelines viable for production.
About 10 FLNG facilities are being planned globally with a handful under construction, among them the biggest, Prelude, owned by Royal Dutch Shell and due to be producing from an offshore Australian field by 2017. Shell has shied away from offering estimates of Prelude's likely cost, but analysts say it could be more than US$12 billion.
While a Chinese FLNG plant might be some years away, industry officials said such vessels could become an important component of Beijing's strategy in the South China Sea - including in disputed waters - as the country looks to boost its offshore energy output.
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