1天然气挑战新老能源,主导全球能源结构变革迄今为止,21世纪最大的能源创新是一种燃料——天然气。天然气成为能源结构的一部分已有数十年的历史。近来,非常规天然气生产的进步包括致密气、煤层气,尤其是页岩气的开发是革命性的。天然气作为一种世界公认的清洁能源,在一个国家的国民经济及能源结构中的地位日益突出。天然气是全球经济的支柱,为全球提供了24%的一次能源。过去20年,世界天然气消费年平均增长2.4%,为同期石油增 1 Natural Gas Challenges New and Old Energy, Leading the Transformation of Global Energy Structure To date, the largest energy innovation in the 21st century is fuel-gas. Natural gas has been part of the energy structure for decades. Recent developments in unconventional natural gas production, including tight gas, coalbed methane and, in particular, shale gas have been revolutionary. As a recognized clean energy in the world, natural gas has become increasingly prominent in the national economy and energy structure of a country. Natural gas is the backbone of the global economy, providing 24% of the world’s primary energy. In the past 20 years, the world’s natural gas consumption grew at an average annual rate of 2.4%, representing an increase in oil production over the same period