据国际能源机构预测,到21世纪50年代,油气在能源消费中仍将占57%左右。而中国从1993年起已再次成为石油进口国,依目前的数据推算,到2020年,中国的石油供应缺口大约为1.3亿吨,天然气缺口为600亿立方米～800亿立方米。油气工业又一次成为遏制我国经济高速增长的—个“瓶颈”。如何缓解油气供需矛盾的严峻局面,以确保我国国民经济和社会的可持续发展并保证国防安全的 According to the forecast by the International Energy Agency, by the mid-1950s, oil and gas will still account for about 57% of energy consumption. Since 1993, China has once again become an oil importing country. Based on the current data, China’s oil supply gap will be about 130 million tons by 2020, with a natural gas gap of 60 billion cubic meters to 80 billion cubic meters. Once again, the oil and gas industry has become a “bottleneck” to curb China’s rapid economic growth. How to ease the grim situation in the contradiction between supply and demand of oil and gas so as to ensure the sustainable development of our national economy and society and ensure the security of national defense