Mechanical Properties and Microscopic Geological Features under Uniaxial Compression in Tight Reservoir

Figure 2

XRD results of the sandstones from two different strata. UT: Upper Triassic; LP: Lower Permian; Q: quartz; PF: potassium feldspar; Pc: plagioclase; Ca: calcite; Do: dolomite; Si: siderite; An: anatase; Ank: ankerite; Cl: clay.