Fractal Characteristics of Shale Reservoir Based on the High-pressure Mercury Injection Method

1 Introduction Shale of continental basin of east China general is a product of lake face, from shallow lake to deep lake. It is also a good cap rock to prevent oil and gas emission. The shale generally has bigger special surface area, its pore is small, its structure is complex, and it is easy to absorb water, so the general method is very difficult to accurately describe its pore structure.