Chevron said on Tuesday that downstream assets at its Wheatstone liquefied natural gas plant in Western Australia suffered extensive cyclone damage, leaving both production trains offline.Danny Woodall, Chevron's director of operations and maintenance for Australia, said the two LNG processing trains at the 8.9 million-ton-a-year facility remained shut after Tropical Cyclone Narelle struck the region last week."We have a number of fin fans or air-cooled heat exchangers that sustained some damage," he told the Australian Domestic Gas Outlook conference in Sydney."We've got a dedicated team righ