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Effect of pore pressure and confining pressure on fracture permeability
International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1981Abstract The effective pressure p e for measurements of fluid permeability 〈 k 〉 is shown to be ( p c − sp p ) where p c is confining pressure, p p is pore pressure, and s depends on the topography of the fracture surfaces and rock type.
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The pressure exerted by a confined ideal gas
Journal of Physics A: Mathematical and Theoretical, 2011In this paper, we study the pressure exerted by a confined ideal gas on the container boundary and we introduce a surface force in gases. First, the general expression for the local surface pressure tensor is obtained. We find, by examples, that the pressure vanishes at the edges of a box, peaks at the middle of the surface and its magnitude for ...
Hai Pang, Wu-Sheng Dai, Mi Xie
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Confined fluids and their role in pressure solution
Chemical Geology, 2006Abstract The process of pressure solution is defined as the dissolution of materials under high stress at grain-to-grain contacts and precipitation at interfaces under low stress. The kinetics of this process are still poorly understood mainly because of the large timescales involved. In this research, the Surface Forces Apparatus (SFA) technique was
Alessandro Anzalone +5 more
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Lateral Pressures in a Confined Porous Medium
Journal of Engineering Mechanics, 1984M. Y. Corapcioglu, et al. has obtained expressions for deformations and stresses due to a single surface line load in a fluid saturated porous medium of finite width. The problem has a practical importance, especially in the case of elevated, unpaved roads which are supported by retaining walls on both sides. In a subsequent paper by Corapcioglu and A.
M. Yavuz Corapcioglu, Osman Borekci
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Pressure Distribution in Confined Jet Flow
Journal of Fluids Engineering, 2014A momentum jet injected into a confined container breaks up to “diffusive turbulence” after traveling a critical distance. It has been argued that an adverse pressure gradient developing within the container, acting against the jet momentum flux, is responsible for this break up (Risso and Fabre, 1997,“Diffusive Turbulence in a Confined Jet Experiment,”
D. Liberzon, H. J. S. Fernando
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Magnetic and Electric Pressure in a Confined Plasma†
Journal of Electronics and Control, 1962The usual hydromagnetic equations are applied to a fully ionized two- fluid bounded plasma with uniform temperature in a magnetic bottle. The condition of equilibrium is shown to imply a gaussian distribution of plasma density, and internal magnetic and electric fields, with non-zero charge density throughout the plasma.
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Q Measurements under Confining Pressure
1979Birch and Bancroft [1] demonstrated the feasibility of resonating a rock sample under hydrostatic pressure by vibrating the fully encapsulated samples in the torsional mode. They used this approach to obtain some Q data and extensive data on the modulus of rigidity as a function of pressure for a wide variety of rock samples.
B. R. Tittmann +3 more
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Study of CO2/CH4 exchange sorption in coal under confining pressure conditions
International Journal of Greenhouse Gas Control, 2023Mateusz Kudasik +2 more
exaly