Biot-willis数
WebAug 1, 2024 · The dynamic Biot’s coefficient method incorporates the information assembled from analysis of measured logs to generate synthetics, which can then be used with seismic to generate a … Web^ Biot MA, Willis DG (1957) The elastic coefficients of the theory of consolidation. J Appl Mech ASME 24:594–601 ^ Verruijt A (1969) Elastic storage of aquifers. In: DeWiest RJM (ed) Flow through porous media. Academic, New York, pp 331–376 ^ Hantush MS (1960) Modification of the theory of leaky aquifers. J Geophys Res 65(11):3713–3725
Biot-willis数
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WebJun 11, 2024 · The Biot–Willis coefficient is assumed constant in space in this formulation. The complex-valued density and wave number are defined as where is the tortuosity (SI … WebBiot, M. and Willis, D. (1957) The Elastic Coefficient of the Theory of Consolidation. Journal of Applied Mechanics, 24, 594-601. has been cited by the following article: TITLE: Mathematical Modeling of Porous Medium for Sound Absorption Simulations: Application of Multi-Scales and Homogenization
WebA general treatment of Biot’s theory in the range of nonlinear material behaviour and large deformations can be found in Coussy [1991, 2004], where the theory is reformulated using a thermody-namics approach. Fluid infiltrated porous media consist of solid skeleton and fluid material that occupies the porous space. WebOct 18, 2016 · The Biot-Willis coefficient is a key component associated with the effective stress field, where it represents the proportion of fluid pressure that counteracts the …
WebFeb 10, 2024 · A proper correlation of the Biot‐Willis coefficient controlling the bulk volumetric strain is developed using the data available from various sources in a manner … WebMay 14, 2024 · The subsurface rock formations may contain predominantly the intragranular matrix porosity in the sedimentary rocks and predominantly the fracture porosity in the …
WebFeb 1, 2010 · In a linear-elastic isotropic sediment β may ideally be calculated from sonic velocity (compressional velocity, V p and shear velocity, V s) and bulk density ρ b (Biot and Willis, 1957): M = ρ b V p 2 μ = ρ b V s 2 K = M − 4 3 G β = 1 − K dry K 0 where, M, μ and K are the compressional, shear and bulk modulus of the rock respectively.
WebABSTRACT Within the Biot poroelasticity theory, the effective pressure coefficient for the bulk volume of a fluid-saturated rock and the Biot coefficient are one and the same quantity. The effective pressure coefficient for the bulk volume is the change of confining pressure with respect to fluid-pressure changes when the bulk volume is held constant. The Biot … dateline comic book killerWebNov 25, 2024 · Let and be the elastic and poroelastic stress tensors, respectively: where and are the Lamé parameters and is the Biot–Willis constant. The poroelasticity region is governed by the quasi-static Biot system [ 23 ]: where is a storage coefficient and is the symmetric and uniformly positive definite rock permeability tensor, satisfying, for ... biw employee benefitsWebPoromechanics. Poromechanics is a branch of physics and specifically continuum mechanics and acoustics that studies the behaviour of fluid-saturated porous media. [1] … dateline conduct unbecoming you tubeWeb物理探査. Elastic coefficients in the Biot theory (Biot coefficients) for fluid-saturated porous media are expressed by conventional elastic coefficients and porosity. Practical … dateline contact informationWebJun 23, 2024 · A Review of Techniques for Measuring the Biot Coefficient and Other Effective Stress Parameters for Fluid-Saturated Rocks Appl. Mech. Rev (March,2024) Estimation of the Mechanical Properties of Fluid-Saturated Rocks … dateline.com tv showWebOct 16, 2016 · ABSTRACT. The Biot-Willis coefficient is a key component associated with the effective stress field, where it represents the proportion of fluid pressure that counteracts the confining stress. To properly estimate the Biot-Willis coefficient, we require knowledge of the more fundamental building blocks of a rock mass that go beyond the elastic … biwenger accesoWebFeb 25, 2024 · 1), which is based on the principle of effective stresses (also named theory of poroelasticity, Biot 1955, Biot and Willis 1957): $$\sigma_{ij} ' = \sigma_{ij} - \alpha_{ij} p_{p}$$ (1) where Biot’s tensor α ij describes the influence of fluid pressure on the anisotropic elastic solid matrix. It is the key parameter of poroelastic theory. ... dateline crack in everything