易开采轻油资源日渐枯竭在过去的半个世纪中,中东一直在用石油推动着全球经济的发展。但是目前这里的多数易开采油田资源开始枯竭,而且越来越多新开发油田的原油品质日趋重质化,开采难度正在变大。中 Ease of Exploitation Light Oil Resources Dwindling For the past half century, the Middle East has been using oil to fuel the global economic development. However, at present, most of the easily exploitable oilfield resources are depleted, and more and more crude oil quality of newly developed oilfields is becoming more and more heavy. The difficulty of mining is increasing. in