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The majority of deformation results observed during routine deformation experiments revealed mostly brittle deformation behavior, according to conscient strain rate deformation experiments conducted at p c = 50 MPa and T = 100 °C prior to fracture conductivity tests. Compared to bedding-parallel loading, peak strength was significantly higher for samples loaded perpendicular to the apparent bedding orientation. Pertuity testing was carried out on samples prepared with a saw-cut of given roughness, allowing you to determine fracture permeability with time under pre-defined p c -T- conditions using water and reservoir representative fluids. With increasing p c and, fracture permeability, k, decreases, approaching a minimum value at low p c and , possibly caused by a change from fluid flow through the entire fracture to flowing through localized channels, possibly caused by a change from fluid flow through the entire fracture. At elevated temperatures of T = 70°C and T=90°C, respectively, we discovered a higher concentration of Na + rather than Si 4+.
Source link: https://zenodo.org/record/5795721
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