世界天然气资源及勘探现状研究

GLOBAL NATURAL GAS RESOURCES AND STATUS OF EXPLORATION

分别研究了世界天然气储量、非常规天然气储量、天然气产量等问题。结果表明：截至目前，世界探明天然气储量为175．2×10^12m^3，且主要集中在俄罗斯、伊朗、卡塔尔3个国家，其拥有全世界一半以上的天然气储量；中国天然气勘探开发快速发展，探明储量呈上升趋势，陆上天然气主要分布在鄂尔多斯、四川、塔里木、柴达木等盆地。探讨了天然气生成理论、天然气运移聚集理论、天然气勘探方法，认为多学科综合勘探是天然气勘探的发展方向。还对世界天然气资源勘探形势进行了展望：中东地区和北非‘地区仍是未来天然气勘探的热点地区，天然气勘探将继续高速发展；欧洲地区由于天然气需求量的快速增长，因而其天然气勘探也将快速发展；亚太地区天然气勘探进一步发展，将成为天然气产量快速增长的地区，年增长率为2．7％～3．1％，其中增长速度最快的国家是中国；而其他地区的天然气勘探工作也有望提速。

This paper studies global natural gas reserves,unconventional gas reserves and gas production.The results showed that the latest figure of global proved gas reserves is 175.2 tcm,over a half of which are distributed in Russia,Iran and Qatar.Gas exploration and production have been growing rapidly in China,with proved gas reserves in an escalating trend.The proved gas reserves in Chinese mainland is mainly distributed in several large basins such as Ordos,Sichuan,Tarim and Qaidam.This paper discusses theories of gas generation,migration and accumulation and methodologies of gas exploration.It is believed that multi-disciplinary integrated exploration is the direction of gas exploration advancement.The outlook of world gas exploration is also presented.The Middle East and North Africa are still the hot spots of future gas exploration,where gas exploration will keep high speed.Gas exploration will also develop rapidly in Europe due to its rapid growth of gas demand.Gas exploration will get more active in Asia-Pacific region,where gas production will grow rapidly,with an annual growth rate in the range of 2.7%-3.1%.China will be the highest in growth rate in Asia-Pacific region.Gas exploration in other regions is also expected to speed up.