Coal reservoir is a dual porous rock composed of matrixporosity and fracture with its unique cleat system.
煤储层是一种双重孔隙介质，其孔隙由基质孔隙和裂隙组成，并具有自身独特的割理系统。
2
Finally, the model of matrixporosity and the evolution of permeability tensor of Microfracture for hydraulic fracturing rock is established.
最后，建立水力压裂岩体基质孔隙和微裂缝渗透张量演化模型。
3
The pore spaces are mainly residual intergranular porosity, dissolution porosity in clastic rock reservoir, dissolution matrixporosity and fractures in volcanic reservoirs.