Zj. Guo et al., Discovery of mega-thick oil sandstone and asphalt in the Jurassic System in the Tula Basin and its significance, CHIN SCI B, 43(22), 1998, pp. 1898-1901
The mega-thick oil-bearing sandstone has been discovered in the Jurassic Sy
stem in the Tula Basin, among which there are asphalt veins in fractures. T
he 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 geoch
emistry. The discovery not only shows that the Tula Basin can generate hydr
ocarbon and take on great exploration prospects but also has great implicat
ions for the oil and gas exploration in the Qaidam Basin.