Imperial says Kearl oil sands expansion learns from phase one

CALGARY, Alberta, April 2 (Reuters) - Imperial Oil Ltd , Canada's No. 2 integrated oil producer, expects a smooth start-up for the C$8.9 billion ($8.06 billion) expansion of its Kearl oil sands project in northern Alberta following a rocky beginning for the mine's initial phase, the company's chief executive said on Wednesday.