据天然气加工&液化天然气2020年9月3日休斯敦报道，雪佛龙公司3日在休斯敦宣布，由于需要更多时间来修复其丙烷热交换器的焊接，雪佛龙公司将把其位于西澳大利亚州的高更液化天然气（LNG）厂的2号液化生产线的重新启动推迟到10月份。
澳大利亚第二大LNG厂的2号液化生产线自5月份以来一直处于关闭状态，进行例行维护。由于这个生产装置的丙烷热水壶出现裂缝，维护时间不得不延长。雪佛龙公司原本希望在9月初完成修复工作。
雪佛龙公司3日在一份声明中表示：“在今年7月的例行维护中发现了热交换器的焊接质量问题，雪佛龙公司预计热交换器的维修工作将在9月份完成，并在10月重启2号液化生产线的液化生产。”
雪佛龙公司表示，该公司将继续履行合同义务，在长时间停工期间向西澳大利亚州国内市场提供天然气和LNG。
澳大利亚制造业工人工会7月份曾表示，在2号液化生产线上8到11个热水壶上发现了长达1米、深30毫米的裂缝，雪佛龙公司呼吁立即关闭整个LNG厂进行安全检查。
西澳大利亚州工业监管机构8月份同意，允许雪佛龙公司关闭高更LNG厂的其余两条液化生产线，以便分阶段进行检查和维修——1号液化生产线将于10月关闭，3号液化生产线将于明年1月关闭。
李峻 编译自 Gas Processing & LNG
原文如下：
Chevron delays restart of Gorgon LNG unit
Chevron Corp anounced it will delay till October the restart of the Train 2 unit at its Gorgon LNGplant in Western Australia, as more time is needed to repair welds on its propane heat exchangers.
Train 2 at Australia’s second-largest LNG plant has been shut since May for maintenance, which was extended after cracks were found in the production unit’s propane kettles. The company had hoped to complete the repairs by early September.
“Chevron expects the repairs to the heat exchangers, where weld quality issues were discovered during scheduled maintenance in July 2020, to be complete and to restart production at Train 2 next month,” the company said in a statement on Thursday.
The company said it would continue to meet its contractual obligations to provide gas to the Western Australian domestic market and LNG through the prolonged shutdown.
Cracks up to one meter long and 30 millimeters deep were found on between eight and 11 kettles on Train 2, the Australian Manufacturing Workers Union said in July, calling for an immediate shutdown of the whole plant for safety inspections.
Western Australia’s industrial regulator agreed last month to allow Chevron to shut the remaining two Gorgon trains for inspection and repairs in stages — with Train 1 to be shut in October and Train 3 in January.
