What is the porosity and permeability of sandstone and mudstone
A mud and clay mudstone solidified into sedimentary rock, its composition and structure and shale are similar but less fragile, is not obvious bedding or foliation of clay rock.
Sandstone is composed of quartz grains (sand), which is stable in structure, usually light brown or red. Sandstone is a sedimentary rock, mainly formed by cementation of sand, the sand content should be greater than 50%. Most of the sandstone is composed of quartz or feldspar. The main component of A. quartz composition of more than 52%; B. clay around 15%; C. goethite about 18%; D. other substances more than 10%.
Generally, the porosity of mudstone is very high, which can be as high as 60%-70%, and the porosity of sandstone should be 30%-40%.
