Permeability anisotropy
WebOct 1, 2024 · A permeability anisotropy cell was customized in this study to quantify vertical and horizontal permeability in sediments. The cell uses a cubic specimen, 35.56 mm on a … WebAs a result, the fast compressional wave can be related to permeability anisotropy in a reservoir. The model results demonstrate that for a fast quasi-P-wave propagating perpendicular to fluid‐filled cracks, the attenuation is greater than when the wave propagates parallel to the plane of the crack. Theoretical predictions and velocity ...
Permeability anisotropy
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WebJul 4, 2024 · The anisotropic coal permeability test was performed using a novel pressure cell compatible with micro-CT scanning at Curtin University in Australia (Fig. 2) (Lebedev … WebJul 12, 2024 · The near-source, multistream, and rapidly changing sedimentary environments of conglomerate reservoirs lead to reservoir characteristics such as strong heterogeneity …
WebNov 9, 2015 · Anisotropic permeability was measured at a series of gas pressures and confining pressures. A permeability model incorporating stress and Klinkenberg effect was applied to describe the data.... WebOct 1, 2011 · Abstract The results of fluid-flow experiments revealed a significant permeability anisotropy in highly sheared serpentinite. Fluid flow parallel to serpentinite foliation is an order of magnitude or more higher than that normal to the foliation at confining pressures as high as ∼50 MPa.
WebAnisotropy, in materials science, is a material's directional dependence of a physical property. This is a critical consideration for materials selection in engineering applications. A material with physical properties that are symmetric about an axis that is normal to a plane of isotropy is called a transversely isotropic material. WebPermeability data is typically obtained in the near-wellbore area from core analysis, nuclear magnetic resonance (NMR) logs, and pretest buildup investigations conducted with a …
WebApr 1, 1970 · THE TERM "PERMEABILITY ANISOTROPY", as used here, may be defined as the ratio of horizontal permeability (k max or k 90) to vertical permeability (k v). It is a quantity which affects, directly or indirectly, the solution of many problems arising in petroleum …
WebFeb 2, 2024 · The main factors controlling coal permeability evolution are effective stress, anisotropic swelling/shrinkage near fracture surfaces (internal swelling/shrinkage), and gas rarefaction effects. Combined impacts of the above mechanisms make coal permeability evolution complex and difficult to predict. dwm javatpointIn the field of computer graphics, an anisotropic surface changes in appearance as it rotates about its geometric normal, as is the case with velvet. Anisotropic filtering (AF) is a method of enhancing the image quality of textures on surfaces that are far away and steeply angled with respect to the point of view. Older techniques, such as bilinear and trilinear filtering, do not take into ac… reflektor suzuki sx4 s-crossWebOct 1, 2024 · The anisotropic hydraulic conductivity of earth dam core varies with its stress state and can be accurately measured with a flexible-wall permeameter (Zhu, 1989 ). The anisotropic hydraulic conductivity has been evaluated in some soil types. refleksija svjetlosti