The deep lake facies dark mudstone, shale and oil shale are better source rock, and the overlying Mid Upper Triassic Xiaoquangou group is the favourable reservoir.All these suppo...

• 其中深湖相暗色泥、页岩和油页岩构成了良好的烃源岩，其上覆的中-上三叠统小泉沟群为有利的储集层，表明吐哈盆地南部坳陷的侏罗系以下具有良好的油气勘探前景。