Petrophysical Texture Heterogeneity of Vesicles in Andesite Reservoir on Micro-Scales

Structural Features of the Fragments from Cast Iron Cauldrons of the Medieval Golden Horde: Neutron Tomography Data

“…Note that such large voids are characteristic not only of the fragments from the Selitrennoye settlement but also of the more structurally uniform samples from the Bolgar area. The analysis of the shape of the separated pores was performed in the approximation of an elongation [47,[54][55][56], which represents an ellipsoid shape of pores. The elongation of the pores is the ratio of the semi-axes of the Legendre ellipsoid [57].…”

“…The normal density distribution approximation yields broad asymmetric duplets and triplets (Figure 6b), which may indicate the differences in pore shape and elongation from fragment to fragment. Such a complex form of distribution may indicate several sets of pores inside the cast iron fragments, whose The analysis of the shape of the separated pores was performed in the approximation of an elongation [47,[54][55][56], which represents an ellipsoid shape of pores. The elongation of the pores is the ratio of the semi-axes of the Legendre ellipsoid [57].…”

Analysis of Microstructure and Low Permeability with 3D Digital Rock Modeling

“…Cao et al [6] used computed tomography data to analyze the capillary pressure of the dense sandstone based on a digital rock model. Qin et al [7] used the fractal and multifractal methods such as box dimension and moment method combined with X-CT imaging techniques to analyze the structure of the volcanic vesicle. Yang et al [8] used X-ray tomography to determine the distribution of residual oil in sandstone with different permeability.…”