... Grainy Texture: Dolostone RRTs. Fig. 4 shows 4 Jurassic dolomitic RRTs with different degrees of leaching and compaction. The porosity-permeability data is lower than the average grainy trend. The RRTs show narrow and uniform PTSD curves. At 100 psi oil-water p c all samples show the same...

... features, which could influence the permeability for a given sample. These features are porosity, pore number, maximum pore volume, maximum surface area, mean pore volume, mean surface area, median pore volume, median surface area, minimum pore volume, minimum surface area, specific surface area...

... wettability scenarios suggested by ENI, using Direct HydroDynamic simulator (DHD) and to verify the obtained results through a comparison with experimentally obtained relative permeability data. The sample porosities ranged from 13% to 22%. The permeability ranged from 3 md to 570 md. Abstract Digital...

... Machine learning can also be helpful to improve NMR models and predict petrophysical properties for carbonate rocks such as porosity, permeability, and irreducible water saturation. To apply ML, the selected algorithm is trained on the available dataset to establish a relationship between...

..., and digital cores. The sweet spots of the reservoir are the combinations of the better lithofacies, texture faces, and pore structure facies. Figure 1 Integrating advanced logging techniques and core measurements Lithofacies To evaluate the lithologies, pore structures, porosities...

... The parameters are modified on the grid block level during both history-matching scenarios. The permeability and porosity are the parameters driving rock type change, and the relative permeability and capillary pressure influence the flow behaviour within each rock type. The adjustments...

... and far detector. Self-compensated sigma and neutron porosity (TPHI) don’t require modeling to be applied and prevent issues related to human error or insufficient knowledge in inputting casing parameters. Sigma is useful to compute clay volume combined with elemental spectroscopy and TPHI is useful...

... structure change mineral pipe sandstone connectivity porosity shengli oilfield injection experimental study Introduction China has large reserves of heavy oil resources and is widely distributed, mainly in Liaohe Oilfield, Xinjiang Oilfield, Shengli Oilfield and Henan Oilfield ( Yang et al...

... Abstract Porosity and permeability of rocks are crucial parameters utilized to assess the quality of oil and gas reservoirs. Diagenesis in carbonate reservoirs commonly results in dissolution, and creates secondary porosity and permeability. At the same time, geochemical records (e.g., isotopes...

... of petrophysical properties (porosity/permeability) being similar. Moreover, real-time Sw estimation would be required in addition to porosity to minimize the risk of drilling a producer into water bearing intervals. In fact, the comparison between petrophysical parameters is more appropriate to heterogeneous...

... in a good porosity zone. Along the boundary orientation for geosteering purposes, the technology was able to map another two porous zones within a 20 ft depth of the investigation. The qualitative formation resistivity, both Rh and Rv, were also used for formation evaluation in this reservoir at the well...

... in Abu Dhabi. An integrated approach of rock physics modelling and geostatistical inversion followed by porosity co-simulation was undertaken to characterize the spatially varying lithofacies and porosity of the complex carbonate reservoirs. Necessary checks to ensure highest quality data input included...

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... in this study following sequential solution of series of equations that related formation attributes to log measurements ( AlRuwaili, 2005 ) Neutron porosity vs Bulk Density (NEU-DEN) cross-plot and equation used to obtain the formation porosity Figure 4 . Abstract Carbonates heterogeneity...

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... ) or specifics such as permeabilities ( Gholami et al., 2014 ; Hosseini et al., 2019 ), porosities ( Wong et al., 2005 ), clay volumes. Otchere et al. (2021) remarked some of the strong points as well as the downsides of the different ML algorithms and techniques. Abstract This paper discusses...

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... alterations. 17 cored wells in the Far North development area were studied in detail, with focus on the intervals that experience the lower porosity unit with higher oil saturations ( Figure 9 ). There are 3 main diagenetic influences on reservoir quality within the Far North development area...

... progress, and leads to notable failures. Saturation is not merely a function of height. At the very least, it also depends on porosity, permeability, fluid densities, interfacial tension, and contact angle. Limiting it to height requires adding in all of these other functionalities as afterthoughts rather...

... phenomenon enhanced recovery knowledge forecast simulation injector well accumulation Reservoir Characterization porosity Alpha Field water contact oil producer society of petroleum engineers More in detail, 9 5/8″ production column shoes were set at top of the first clean sand. The following...