目前,世界范围内能源资源总体储量仍比较丰富。按现有进度,原油、天然气、铁矿石可以再开采46.2年、58.6年、75年,而煤炭、铝土矿的保障能力超过100年。未来非常规油气资源,如重油、油砂、页岩油以及天然气水合物等资源开 At present, the overall reserves of energy resources in the world are still relatively abundant. According to the current progress, crude oil, natural gas and iron ore can be mined for 46.2 years, 58.6 years and 75 years, while coal and bauxite can be guaranteed for more than 100 years. Future unconventional oil and gas resources, such as heavy oil, oil sands, shale oil and gas hydrate and other resources open