Discovery of mega-thick oil sandstone and asphalt in the Jurassic System in the Tula Basin and its significance  

作　　者：Zhaojie Guo Zhicheng Zhang Fangang Zeng 

机构地区：[1]Peking Univ, Dept Geol, Beijing 100871, Peoples R China

出　　处：《Chinese Science Bulletin》1998年第22期1898-1901,共4页

摘　　要：The mega_thick oil_bearing sandstone has been discovered in the Jurassic System in the Tula Basin, among which there are asphalt veins in fractures. The crude oil from oil_bearing sandstone and asphalt in the basin is mature, and similar to that of the Jurassic crude oil in the Qaidam Basin in geochemistry. The discovery not only shows that the Tula Basin can generate hydrocarbon and take on great exploration prospects but also has great implications for the oil and gas exploration in the Qaidam Basin.The mega-thick oil-bearing sandstone has been discovered in the Jurassic System in the Tula Basin, among which there are asphalt veins in fractures. The crude oil from oil-bearing sandstone and asphalt in the basin is mature, and similar to that of the Jurassic crude oil in the Qaidam Basin in geochemistry. The discovery not only shows that the Tula Basin can generate hydrocarbon and take on great exploration prospects but also has great implications for the oil and gas exploration in the Qaidam Basin.

关 键 词：Tula BASIN oil SANDSTONE hydrocarbon exploration. 

分 类 号：P618.13[天文地球—矿床学]