与常规石油相比,非常规石油和石油替代品的基本建设费用和周期、生产成本都明显偏高。即使在高油价下,利用目前最先进(但还不够成熟)的技术维持这类项目的生产,仍要靠优惠政策或政府直接予以补贴的支持。显然,油价大幅回落,盲目快速发展和大量投资所建成的一批项目就会受到严重影响,甚至造成巨大的经济损失和连锁效应。据多家机构 Compared with conventional oil, unconventional petroleum and petroleum substitutes cost significantly for capital construction and for cycle and production costs. Even under the condition of high oil prices, the use of the most advanced (but not yet mature) technology to maintain the production of such projects still needs the support of preferential policies or government subsidies. Obviously, a sharp drop in oil prices, blind rapid development and a large number of investment projects built will be seriously affected, and even cause huge economic losses and chain effects. According to several agencies