Key Laboratory of Deep Oil and Gas University of Petroleum(East China) 266580;
Exploration and Development Research Institute Shengli Oilfield Company 257000;
Sinopec Shengli Oilfield Company 257000;
shale lamina; pore-throat wettability; oil occurrence state; shale oil reservoir; Permian Lucaogou Formation; Ji-musar Sag; Junggar Basin;