A high production reservoir mainly controlled by lithology has been recently discovered in the Member 1 of the Qingshuihe Formation(K_1q_1)at the Shinan 31 Well in the central Junggar Basin.

• 准噶尔盆地腹部的石南31井区,下白垩统清水河组一段为一个近期新发现的以岩性控制为主的高产油藏。