Topic
Effective porosity
About: Effective porosity is a research topic. Over the lifetime, 1199 publications have been published within this topic receiving 26511 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this article, distance-time and weight-time imbibition measurements with liquids having different densities, surface tensions, and viscosities have been carried out on silica gel plates in order to determine contact angles, by employing the parabolic form of the Washburn equation and the physical model that considers the difference in pressure at the liquid-vapor interface in terms of the Laplace equation.
Abstract: Distance-time and weight-time imbibition measurements with liquids having different densities, surface tensions, and viscosities have been carried out on silica gel plates in order to determine contact angles, by employing the parabolic form of the Washburn equation and the physical model that considers the difference in pressure at the liquid-vapor interface in terms of the Laplace equation. A comparison of the contact angles obtained by these two experimental techniques showed that the results are the same if the effective porosity of the porous solid determined independently by each capillary penetration experiment is utilized to analyze the weight-time experimental data.
10 citations
TL;DR: In this article, the authors studied the reservoir parameters (total gross thickness, shale volume, total porosity, effective porosity and water saturation, bulk pore volume, net pay thickness and oil in place indicator) of Kareem and Belayim formations.
10 citations
TL;DR: In this article, the authors examined the logging response characteristics of asphaltene carbonate reservoirs based on the measurement of porosity and permeability, density, compressional and shear wave slowness, resistivity and Nuclear Magnetic Resonance transverse relaxation time (T2) of cores before and after the bitumen dissolving.
10 citations
TL;DR: The proposed constitutive equation and the developed model of effective porosity are represented in form of principle stretch and stretch can be measured with magnetic resonance imaging (MRI) visible meshes so that stress andeffective porosity can be derived in vivo.
Abstract: There is a potential mismatch between surgical mesh implants for hernia repair of pelvic floor surgery and the host tissue because soft tissue is incompressible and meshes are compressible. Therefore, mesh and tissue may develop different stiffness over the range of deformation. In addition compressibility is related to a change of porosity of the mesh which may decrease during the deformation. Scar formation and the ingrowth of the mesh can be related to effective porosity which decreases discontinuously in uniaxial loading at a critical stretch when pore areas collapse and therefore the mesh becomes ineffective. Compressibility requires several non standard approaches which can be performed with high accuracy and local resolution by deformation measurement with digital image correlation (DIC). A compressible hyperelastic model is chosen and identified with biaxial deformation measurements. Also effective porosity of deformed meshes can be calculated on the basis of biaxial deformation. The proposed constitutive equation and the developed model of effective porosity are represented in form of principle stretch. Stretch can be measured with magnetic resonance imaging (MRI) visible meshes so that stress and effective porosity can be derived in vivo.
10 citations
01 Jan 1994
10 citations