摘要
我国非常规油气资源 (主要包括稠油、沥青、深盆气和煤层气等 )非常丰富 ,初步预测其资源量在 8× 10 10 t油气当量以上。非常规油气有其自身独特的富集与分布规律。中国东部存在大量第三系重质油藏 ,南方广泛分布中、古生界沥青脉和油砂 ,西部的中、古生界重油和焦油砂则主要沿盆地北缘或西北缘展布 ,预计未发现稠油资源量约为 2 .5× 10 10 t。初步研究证实 ,我国一些大型含煤盆地都具有形成深盆气的地质条件 ,预计中部深盆气资源量可达 4× 10 13 ～ 5× 10 13 m3 。沁水盆地和冀中坳陷大城等地区的勘探试验结果表明 ,华北地区石炭 二叠纪煤系地层具非常广阔的煤层气勘探前景。目前我国非常规油气资源的勘探程度很低 ,勘探潜力巨大。
China is rich in unconventional oil gas resources (namely, heavy oil, tar sands, deep basin gas, coal bed gas, and so forth). It is estimated that this resources size, in contrast with conventional oil resources, is over 8×10 10 t (oil equivalent). They are unique in their accumulation and distribution. A lot of Tertiary heavy oil reservoirs were formed in East China, Meso Paleozoic asphalt veins and tar sands in South China, as well as Meso Paleozoic heavy oil reservoirs and tar sands distributed at north and northwest margins of basin in West China. Approximately 2.5×10 10 t of heavy oil is predicted in China. Initial study shows that there are favorably geological conditions for deep basin gas formation in some large scale coal bearing basins of our country. It is estimated that the resource extent of deep basin gas in the middle part of China amounts to 4×10 13 -5×10 13 m 3.The pilot exploration of coal bed gas in Dacheng and Xinshui areas, Huabei region, indicates that there are great exploratory prospects in Carboniferous Permian coal bearing strata, Huabei region. At present, the proven extent of unconventional resources is quite less explored in China; so, China possesses a huge potential in unconventional oil gas exploration.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
2002年第5期5-7,共3页
Petroleum Exploration and Development
关键词
中国
非常规油气资源
稠油
煤层气
油气勘探远景
深盆气
unconventional oil gas resources
viscous crude oil
deep basin gas
coal bed gas
hydrocarbon potential
