Radim Ciz
Free University of Berlin
37 Papers
163 Citations
Radim Ciz is an academic researcher from Free University of Berlin. The author has contributed to research in topics: Poromechanics & Porous medium. The author has an hindex of 14, co-authored 37 publications. Previous affiliations of Radim Ciz include Commonwealth Scientific and Industrial Research Organisation.
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Papers
Generalization of Gassmann equations for porous media saturated with a solid material
Radim Ciz,Serge A. Shapiro +1 more
TL;DR: In this article, the elastic tensor of a solid-saturated porous rock is derived considering small deformations of the rock skeleton and the pore infill material upon loading them with the confining and pore-space stresses.
169
Finite-difference modeling of wave propagation on microscale: A snapshot of the work in progress
Erik H. Saenger,Radim Ciz,Oliver S. Krüger,Stefan M. Schmalholz,Boris Gurevich,Serge A. Shapiro +5 more
TL;DR: In this paper, the authors apply the rotated staggered grid finite-difference FD method for pore-scale simulation of elastic wavepropagation in digital rock samples, including the dynamic elastic properties of rocks saturated with a viscous fluid.
55
Modeling elastic wave velocities and attenuation in rocks saturated with heavy oil
TL;DR: In this article, the authors estimate viscoelastic properties of mixtures of rock and heavy oil by computing Hashin-Shtrikman (HS) bounds for this system and also propose a method to compute a realistic estimate of these properties that lie between those bounds.
Simple expressions for normal‐incidence reflection coefficients from an interface between fluid‐saturated porous materials
TL;DR: The theory of poroelasticity can be used to describe fluid-saturated porous materials, whose elastic properties can be described by the theory of POROELAS as mentioned in this paper.
Influence of microheterogeneity on effective stress law for elastic properties of rocks
TL;DR: In this article, the authors explore whether this deviation of the effective stress coefficient from unity can be caused by the spatial microheterogeneity of the rock and show that only a small amount (less than 1%) of a very soft component is sufficient to cause this effect.