2000年以来中国大气田勘探开发特征  

Exploration and development of large gas fields in China since 2000

作　　者：戴金星[1] 吴伟[1] 房忱琛[1] 刘丹[1] 

机构地区：[1]中国石油勘探开发研究院

出　　处：《天然气工业》2015年第1期1-9,共9页Natural Gas Industry

摘　　要：截至2013年底,中国共探明51个大气田,天然气储量持续高峰增长、产量快速上升、管网建设蓬勃发展、市场需求旺盛。总结2000年以来中国大气田勘探、开发的特征,可以为发现更多的大气田提供借鉴和思路。中国大气田勘探特征:仅发现于沉积面积大于10×10~4km^2的盆地,已在9个盆地中探明了大气田;2005年前大气田探明天然气总储量较少,为2.708588×10^(12)m^3,之后则较大,2013年底探明天然气总储量为8.168377×10^(12)m^3;大气田储量丰度最大的和最小的相差超过86倍,储量丰度最大的克拉2气田为59.05×10~8m^3/km^2,最小的靖边气田为0.684×10~8m^3/km^2;深度介于3000~4500m的大气田探明储量比例大,占总储量的46.11%。中国大气田开发特征:大气田的产量是中国天然气工业的支柱,2013年大气田总产量达922.72×10~8m^3,占全国天然气总产量的76.3%;大气田的产量中以煤成气为主,2013年大气田中煤成气总产量为710.13×10~8m^3,煤成气占全国大气田总产量的77.0%;关键大气田(苏里格、靖边、大牛地、普光、克拉2等气田)的产量是支撑产气大国的基石。Up till the end of 2013, the reserves of 51 giant gas fields had been proved in China, contributing a lot to the accelerating recoverable gas reserves and production, prosperous development of gas pipeline construction, and strong gas market demand. Through an overview on the E ＆P experiences from those giant gas fields over the past decade, we obtained the following findings in two respective parts as valuable reference and paradigm shift in finding more large gas fields. Part I ： （1） Large gas fields were discovered in 9 basins with each having a sedimentary area of more than 100 thousand ma ; the proved cumulative gas reserves before 2005 were only 2.708 588 trillion m3 , much less than that after 2005, and reached up to 8.168 377 trillion ma by the end of 2013. （2） The reserve abundance of large gas fields varies a lot, among which the Kela 2 gas field tops the first with 5.905 billion ma gas per km2 , which is 86 times that of the Jingbian gas field with the smallest reserve abundance. （3） The largest proportion of proved reserves is contributed by the large reservoirs with the buried depth between 3 000 and 4 500 meters, accounting for 46.11% of the total reserves. Part l] ： （1） The yield of large gas fields is the pillar of the natural gas industry of China. In 2013, the total yield of large gas fields in China was 92.272 billion ma , accounting for 76.3% of the total natural gas yield. （2） The yield of coal-derived gas is a major part of the yield of large gas fields. In 2013, the total yield of coal-derived gas from large gas fields was 71.013 billion m3 , accounting for 77.0% of the total yield of large gas fields in China. （3） The yield of major large gas fields including Sulige, Jingbian, Daniudi, Puguang, and Kela 2, etc. is the cornerstone in making China a major gas producer.

关 键 词：中国 大气田 煤成气 勘探 开发 储量 产量 沉积面积 产层深度 

分 类 号：TE37[石油与天然气工程—油气田开发工程] P618.13[天文地球—矿床学]