Diagenetic Heterogeneity and Reservoir Quality: Fluvial, Deltaic, and Turbiditic Sandstone Reservoirs, Potiguar and Reconcavo Rift Basins, Brazil

An integrated sedimentological, rock typing, image logs, and artificial neural networks analysis for reservoir quality assessment of the heterogeneous fluvial-deltaic Messinian Abu Madi reservoirs, Salma field, onshore East Nile Delta, Egypt

“…HFU's and FU's have been observed in both poor and excellent reservoir quality zones. This phenomenon highlights the high-degree of heterogeneity of the studied Abu Madi reservoirs, which is reported in similar studies of comparable sedimentary settings, worldwide (Moraes and Surdam, 1993;Alaa et al, 2000;Pranter et al, 2007;Luo et al, 2009;Colombera et al, 2012;Henares et al, 2016;Sahoo et al, 2016;Abdel-Fattah et al, 2022).…”

DEM multi‐scale insights on the pre‐failure behavior of mature structured sands: Influence of bond type, amount, breakage pattern and heterogeneity

“…A color bar is provided in Figure 19 to scale the normalized contact normal force for the selected DEM samples. These samples are chosen as representative sets due to the observed variations in their small and small-to-medium strain shear modulus behavior (shown in Figures 11,12,and 14). At the G max position (i.e., where small-strain stiffness is measured), the distribution of the normal contact forces for all the samples (HC-3, HC-5, HC-6, and LC-3) is approximately isotropic with slight variations among each other.…”

“…Thus, these materials have an interest not only to sedimentologists, engineering geologists, and geotechnical or mining engineers, but also to petroleum scientists and engineers. 11,12,13,14 On the other hand, cemented sands are depicted artificially to enhance the mechanical properties of natural soils. For example, ground improvement and soil stabilization processes are used to improve the mechanical properties of the soil matrix by adding a chemical agent/stabilizer which causes the bonding/cementing between soil particles.…”

“…Significantly, oil and gas reservoirs in many parts of the world are found to be stored in either cemented sands or weak sandstones. Thus, these materials have an interest not only to sedimentologists, engineering geologists, and geotechnical or mining engineers, but also to petroleum scientists and engineers 11,12,13,14 . On the other hand, cemented sands are depicted artificially to enhance the mechanical properties of natural soils.…”