Numerical schemes. In this work, a numerical model of sandstone specimens with heterogeneous structures was established with PFC to study the influence of loading rate on the strength and ...
WhatsApp: +86 18221755073We report a dataset containing full-scale, 3D images of rock plugs augmented by petrophysical lab characterization data for application in digital rock and capillary network analysis. Specifically ...
WhatsApp: +86 18221755073that starting at point B microcracks develop in the rock sample and the sample experiences strain hardening. The ordinate of point B is called the yield stress by analogy with the response ... Sandstone Sandstone Sandstone Mudstone Limestone Limestone Ironstone Sandstone 18.00 ± 0.62 (20) 19.17 ± 0.21 (23) 23.10 ± 0.48 (19) 24.21 ± 0.83 (8)
WhatsApp: +86 18221755073Sandstone, fine sandstone, and sandy mudstone make up the majority of the rock formations where NGHs are found in permafrost, and the thickness of the hydrate layer is generally within a few meters to tens of meters (Hunter et al., 2011; Makogon, 1965; Makogon et al., 2007; Makogon and Omelchenko, 2013; Oyama and Masutani, 2017; Riedel et al ...
WhatsApp: +86 18221755073The 3DP sample is manufactured at resolution of 2 μm from natural sandstone. • The PSNR of the 3DP sample is in [9.010, 14.983], and its SSIM is in [0.870, 0.925]. • Most pore features are printed but some are not in its original size or position. • Visualized CO 2 displacing oil experiments on the 3DP sample are conducted.
WhatsApp: +86 18221755073Numerical schemes. In this work, a numerical model of sandstone specimens with heterogeneous structures was established with PFC to study the influence of loading rate …
WhatsApp: +86 18221755073Request PDF | Zeta potential of CO2-rich aqueous solutions in contact with intact sandstone sample at temperatures of 23°C and 40°C and pressures up to 10.0 MPa | Despite the broad range of ...
WhatsApp: +86 18221755073Vertical natural fractures (NFs) are prevalent in low-permeability sandstone reservoirs. Presently, the impact of NFs on the extension of hydraulic fractures (HFs) remains …
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WhatsApp: +86 18221755073We performed this integrated approach on a sample of Idaho Gray Sandstone with an estimated porosity of 29% and permeability of 2200 mD. Tomographic images were collected at resolutions of 30 and ...
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WhatsApp: +86 18221755073Bentheim Sandstone is considered a suitable conventional georeservoir rock even at great depth because of its mineral composition, homogeneity, micro- and macrostructure, and is also used as a ...
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WhatsApp: +86 18221755073The artificially reconstituted sample was scanned after 28 days of curing. All the specimens were cylindrical, with a diameter of 5 mm and a height of 10 mm. The image of the …
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WhatsApp: +86 18221755073To efficiently heal large-aperture cracks in the sandstone cultural relics, a microbially induced magnesia carbonation (MIMC) method was introduced in combination with sandstone grains. A series of MIMC samples and sandstone–MIMC composite samples were meticulously prepared, incorporating different initial water content and magnesia content …
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WhatsApp: +86 18221755073The 3DP sample is manufactured at resolution of 2 μm from natural sandstone. • The PSNR of the 3DP sample is in [9.010, 14.983], and its SSIM is in [0.870, 0.925]. • Most …
WhatsApp: +86 18221755073A Block sample accompanied by the application of a Schmidt hammer for preliminary assessment.b Utilization of a diamond core drill machine to extract cores from the block sample.c Core cutter employed for precision cutting and polishing of core samples in accordance with established standards.d Illustration of both fresh and slightly weathered …
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WhatsApp: +86 18221755073ired to quarry one ton of sandstone is 0.217 million BTUs. Table 1 shows the breakdown. f this gross energy per ton of sandstone product produced.T. ble 2 displays the water required for …
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