As early as in the 1960s some people had predicted that crude oil would deplete soon. Nevertheless, by the end of 1999 the world proven reserves of remaining conventional oil amounted to 139.2 billion tons. The world ...As early as in the 1960s some people had predicted that crude oil would deplete soon. Nevertheless, by the end of 1999 the world proven reserves of remaining conventional oil amounted to 139.2 billion tons. The world consumed about 3.462 billion tons of oil in 1999. In addition, there exist sizable reserves of non-conventional oil (heavy oils and super-heavy oils).展开更多
文摘As early as in the 1960s some people had predicted that crude oil would deplete soon. Nevertheless, by the end of 1999 the world proven reserves of remaining conventional oil amounted to 139.2 billion tons. The world consumed about 3.462 billion tons of oil in 1999. In addition, there exist sizable reserves of non-conventional oil (heavy oils and super-heavy oils).
