In recent years, a great breakthrough has been made in exploration of buried hill in the north of Chexi.Buried hill reservoirs have been discovered in Archaean, lower Palaeozoic, and upper Palaeozoic.

• 近几年,车西北部古潜山带的勘探获重大突破,发现了太古宇、下古生界、上古生界等多层系的古潜山油气藏,油气藏类型有风化壳型、古潜山内幕型。