The water-cut rises quickly and the remaining oil distribution is complex when ultra-low permeability reservoir enters high water cut stage. comprehensive use of engineering, dynamic monitoring, numerical simulation, core experiments other methods, this paper systematically summarizes three types water-driving law characteristics oil, which are pore-fracture flow, flow fracture flow. It conside...

Characterizing heterogeneity in reservoir rocks at the pore scale is crucial to understand flow patterns better, and estimate petrophysical properties such as porosity permeability. This study introduces multifractals descriptors for rock samples’ scale. We analyzed twenty samples from sandstone carbonate reservoirs using their 3D X-ray micro-computed tomography images. In addition, we s...

Leakage pathways through caprock lithologies for underground storage of CO2 and/or enhanced oil recovery (EOR) include intrusion into nano-pore mudstones, flow within fractures and faults, larger-scale sedimentary heterogeneity (e.g., stacked channel deposits). To assess multiscale sealing integrity the system that overlies Morrow B sandstone reservoir, Farnsworth Unit (FWU), Texas, USA, we com...

3D seismic and petrophysical log data interpretation of reservoir sands in “SIMA” Field, onshore Niger Delta has been undertaken this study to ascertain the characteristics terms favourable structural parameters suitable for hydrocarbon accumulation entrapment field. Horizon fault were carried out subsurface delineation. In all, seven faults (five normal two listric faults) mapped section. Thes...

Abstract Most oil reservoirs in China have entered the stage of high water cut. Affected by heterogeneity reservoir, flow dominance channel is easily formed between injection-production wells plane direction such reservoirs, and phenomenon channelling intensified. Therefore, a numerical simulation study nitrogen foam flooding carried out this paper. According to reservoir characteristics target...

Large gas reserves have been found in the Permian platform margin of Kaijiang-Liangping area Sichuan Basin SW China. They are assumed to be a widely developed reef–shoal reservoir. However, tight matrix reservoir cannot support high production using conventional development technology at deep subsurface. In this contribution, we analyze fractured reservoirs along strike-slip fault zones compile...

The conventional approach in reservoir characterization uses an extrapolation of petrophysical properties calculated from well logs determining the entire field volume. This technique fails to acknowledge/ factor heterogeneity a reservoir, and consequently leads errors capacity quantification. research work employs deterministic seismic inversion each sand. First, sand was identified intervals ...

Cronobacter species are motile, non-spore forming, Gram negative emerging opportunistic pathogens mostly associated with bacteremia, meningitis, septicemia, brain abscesses and necrotizing enterocolitis in infected neonates, infants and immunocompromised adults. Members of the genus Cronobacter are previously associated with powdered infant formula although the main reservoir and routes of cont...

a key parameter for the application of polymer gels in water shut off treatment is the adsorption of polymer gel onto the rock surface. so, the adsorption properties of a nanocomposite hydrogel were discussed in this research by crosslinking of sulfonated polyacrylamide/sodium montmorillonite aqueous solutions with chromium triacetate. the x-ray diffraction patterns indicated that exfoliated ty...