一种利用压汞曲线求取页岩相渗曲线的方法

相渗曲线作为评价储层岩石的重要指标，在油气田开发过程中具有重要作用。而页岩孔隙结构复杂，泥质含量高，用常规的稳定渗流方法和非稳定法不能测试得到相渗曲线。本文采用页岩岩心的压汞资料，使用分形维的方法，实现了毛管压力曲线转化为相渗曲线。从而解决了页岩气藏相渗曲线难以得到的问题，对页岩气的开发有重要的意义。

A method of using capillary pressure curve to calculate the relative permeability curve of shale gas reservoir

As an important indicator of evaluation of reservoir rock, relative permeability curve plays an important role in the oil and gas field development process. But with the complex pore structure and high shale content, the relative permeability curve of a shale gas reservoir can not be tested by stability permeability method and unsteady state. This study realize the capillary pressure curve transforming into relative permeability curve by the fractal dimension method on the basis of the shale core capillary pressure curve, and solve the problem of shale gas relative permeability curves difficult to get. It has great important significance to the development of the shale gas.