Effective flow properties heterolithic, cross-bedded tidal sandstones: Part 2. Flow simulation

Three-dimensional reservoir characterisation and flow simulation of heterolithic tidal sandstones

Tidal sandstone reservoirs contain significant intervals of hydrocarbonbearing heterolithic facies, characterized by the presence of tidegenerated sedimentary structures such as flaser, wavy, and lenticular bedding (millimeter to centimeter sand-mud alternations). We have characterized the reservoir properties (sandstone connectivity, effective permeability, and displacement efficiency) of thes...

Stratified Kolmogorov flow . Part 2

Forced stratified flows are shown to suffer two types of linear long-wave instability: a ‘viscous’ instability which is related to the classical instability of Kolmogorov flow, and a ‘conductive instability’, with the form of a large-scale, negative thermal diffusion. The nonlinear dynamics of both instabilities is explored with weakly nonlinear theory and numerical computations. The introducti...

A Numerical Simulation of a Tidal Bore Flow

A numerical model was developed based on the Cubic-Interpolated Pseudo-particle (CIP) Combined Unified Procedure (CIP-CUP or C-CUP) method equipped with a Large Eddy Simulation (LES) model and a re-initialization method. The model was validated and applied to the tidal bore flow with a weak breaking front. In the tidal bore flow, the model equipped with a LES turbulence model reproduced accurat...

Application of multiple-point geostatistics on modelling groundwater flow and transport in a cross-bedded aquifer

Upscaling Permeability Measurements Within Complex Heterolithic Tidal Sandstones1

We investigate numerically the effect of sample volume on the effective single-phase permeability of heterolithic tidal sandstones, using three-dimensional models reconstructed directly from large rock specimens measuring ∼45× 30× 15 cm. We find that both individual and averaged effective permeability values vary as a function of sample volume, which indicates that permeability data obtained fr...