摘要
四川盆地川西南部地区上三叠统须家河组页岩厚度大,分布广,是主力烃源层之一。在烃源岩有机质丰度、母质类型、热演化程度分析基础上,对川西南部地区须家河组页岩气资源潜力进行了分析。研究结果表明,川西南部地区须家河组页岩有机碳含量多数在1.2%～2.5%之间,有机质类型以Ⅲ型为主,处于成熟～高成熟阶段;须家河组页岩脆性矿物平均含量为52.3%,脆性较好,具备页岩气压裂开采的有利条件;须家河组页岩有效页岩厚度大,分布稳定,有效页岩生气强度为(15～100)×108 m3/km2,资源量平均约为19.9×1012 m3。川西南部地区上三叠统须家河组泥页岩中天然气资源丰富,勘探潜力巨大。
The thickness of shale is large in the southwest area of Sichuan Basin in Upper Triassic and it is widely distributed,it is one of the main hydrocarbon sources.On the basis of analyzing the hydrocarbon of rocks,the type of hydrocarbon,thermal evolution,the shale resource potential,the results show that the organic carbon of the shale is 1.2%~2.5%,the main type of organic matter is Ⅲ,and it is at the stage of mature ~ high maturity,at the same time,the fragile mineral is high and the average value is over 52.3%,it is good for the production by fracturing.The thickness of effective shale is high and distributed steadily,the intensity of vitality is(15~100)×108m3/km2,and the average resource is 19.9×1012m3.The natural gas is abundant,and the exploration potential is huge in the shale of the southwest area of Sichuan Basin.
出处
《长江大学学报（自科版）（上旬）》
CAS
2013年第4期43-45,1,共3页
JOURNAL OF YANGTZE UNIVERSITY (NATURAL SCIENCE EDITION) SCI ＆ ENG
关键词
须家河组
页岩气
资源潜力
southern area of Sichuan Basin
shale gas
Xujiahe Group
Resource potential
