摘要
1 Introduction Since the tight oil and gas had been explored and exploited effectively, many researchers at home and abroad have tried to apply a variety of experimental techniques （conventional thin section, high pressure mercury penetration, nuclear magnetic resonance, gas adsorption - desorption, field emission scanning electron microscope, CT reconstruction, etc.）
1 Introduction Since the tight oil and gas had been explored and exploited effectively, many researchers at home and abroad have tried to apply a variety of experimental techniques （conventional thin section, high pressure mercury penetration, nuclear magnetic resonance, gas adsorption - desorption, field emission scanning electron microscope, CT reconstruction, etc.）
