... description is crucial for inferring the struc- AN ACCURATE ANALYTICAL MODEL FOR SQUIRT ture of the pore space. Up to now, many analytical models FLOW exist mainly based on simpli ed geometries of the pore space. These models were not compared with numerical solutions; An analytical model for seismic...

... calcareous shale sample equilibrium status flow in porous media fluid dynamics helium exploration geophysicist 10 shale gas pressure data porosity leakage helium molecule porosimeter pore space complex reservoir pore gas shale seg international exposition estimation permeability leakage...

...) numerically estimated the Seismic waves are known to be affected by rock effective P-wave modulus in a sub-volume derived from a heterogeneities and by the fluid in the pore space and, therefore, seismic methods are an important tool for µXRCT image of Berea sandstone, but the pores present in indirectly...

... pressure increase is solved based on the compressibility and volumes of pore space and pore fluids. Our modeling results agree that the evolution of organic shale’s rock-physics property during kerogen maturation is consistent with fluid expansion model that sonic velocity decrease while density changes...

... according to volume fraction of pore space. Lattice Boltzmann method (LBM) has been further extended to investigate the acoustic transport properties in porous media saturated with fluid. The validity of LBM can be verified by comparing the simulation results with the theoretical calculation of Voigt-Reuss...

... attempts to explain wavelength-scale pressure differences whereas squirt flow tries to account for the pressure gradients arising from the heterogeneous pore space. In this work, we combine the two theories by exchanging the dry moduli in the theory of Biot with frequency-dependent dry moduli containing...

...: ORAL grainstone mudstone log analysis well logging geophysical response lithofacies nmr polarization flow in porous media annual meeting nuclear magnetic resonance porosity upstream oil & gas carbonate rock seg seg international exposition permeability pore space carbonate...

... of the images using truncated Gaussian simulation method. This approach preserves total porosity of the sample and reciprocal pore-to-core distribution, however it does not preserve advanced geometrical and topological properties of the pore space such as Minkowski functionals values and Betti numbers...

... Summary Naturally occurring gas hydrates contain significant amounts of natural gas which might be produced in the foreseeable future. Thus, it is necessary to understand the pore-space characteristics of hydrate reservoirs, especially the pore-scale distribution of hydrates...

... distribution of grains, pores and the hydrate phase within. Physical properties of hydrate-bearing sediments depend on the size and distribution of hydrate relative to the sediment grains of the host media. Several models of hydrate distribution within the pore space were proposed earlier in literature...

..., respectively. We show experimental results, on samples from a broad data basis of sedimentary rocks of Russian Perm region, indicating these types of behavior. Introduction The stress dependence of elastic moduli of drained rocks is mainly controlled by deformations of the compliant pore space (thin cracks...

...) is required to transform the time domain NMR data to size domain PSD. The surface relaxation is due to the interaction of paramagnetic sites with the hydrogen nuclei in the pore space (Korringa et al., 1962) and increases when paramagnetic minerals are present (Saidian and Prasad, 2015a ). haynesville...

... dispersion saturation madonna reservoir characterization frequency seismic frequency permeability upstream oil & gas tisato berea sandstone pore space attenuation mpa sandstone Laboratory measurements of seismic wave attenuation in Berea sandstone as a function of water saturation...

... was considered from 2D dataset analyzes. Here, we link pore space parameters from 3D images to experimental physical properties of carbonate rocks to improve permeability and velocity predictions. Results show that applying a combination of porosity, pore size and 3D geometrical parameters to permeability...

... Summary In this paper we use strain energy and reciprocity theory to introduce a new approach to modelling fluid-to-solid substitution for an elastic isotropic composite. In addition, we show that for a constant pore compliance, volume averaged stress heterogeneity in the pore space remains...

.... The true pore geometry (such as aspect ratio, connectivity, and orientation), which can explain most of this scatter, is an important factor to be considered in velocity prediction. The pore space and mineral matrix of natural rock (Berea Sandstone) has been reconstructed through digitized micro- CT...

... characterization porosity specific surface area seg denver 2014 fluid dynamics permeability control factor flow in porous media petrophysical property upstream oil & gas resolution holocene carbonate coordination number carbonate rock connectivity pore space Key controlling factors...

... Summary Kerogen is not only regarded as a significant indicator for gas source potential, but also seen as an important composition embedded in shale matrix or filled in pore space. Meanwhile, there are also some microcracks existing in kerogen according to SEM observations published...

... of the effective moduli of the total matrix when using traditional averaging schemes. An integrated two-stage Gassmann-Sun model is proposed to improve the estimates of effective elastic moduli of clay-bearing formations. In the first stage, we introduce "clay pore space" to the original solid matrix and saturate...

... of various models. Based on our estimation, the hydrate saturation in the hydrate stability zone varies from 40% to 80% in the pore spaces at the study site. It is found that the effective medium model and Raymer- Hunt-Gardner equation fit well at this site. moduli sediment gas hydrate saturation...