... graphically and using logistic regression techniques. permeability flow in porous media equation probe permeameter asia government permeameter spe formation evaluation obtain steady-state reservoir fluid dynamics artificial intelligence correlation carbonate research journal upstream oil...

... Abstract Full field development of the Upper Jurassic carbonates, offshore Abu Dhabi is exceedingly challenging. The heterogeneous texture, complicated pore systems and intensive lithology changes all mark the regressive cycles of sedimentation. Such complicated characteristics obscure...

... Abstract Laboratory studies have shown that wettability of carbonate rock can be altered to a less oil-wetting state by manipulation of brine composition and reduction of salinity. Our recent study (see Mahani et al. 2015b ) suggests that a surface-charge change is likely to be the driving...

... Abstract Microporosity quantification is becoming increasingly important to assess the distribution of hydrocarbons and their remaining/residual saturations after water flood (and /or gas flood). Assessing uncertainties and limitations in microporosity estimations of carbonate cores, comprising...

... Abstract Minimization of disparities between welltest and log-derived average permeabilities has always been an issue, particularly in carbonates where complex pore structures add on challenges to permeability estimation from wireline log data. The disagreement between permeability averages...

... Abstract Some of the large carbonate fields in North Oman have been on production for some 40 years. However, substantial contingent volumes exist in these mature fields, highlighting the need to understand the characteristics of the remaining resources and their potential to generate oil...

...-ray controlled log calibration, and a closely spaced palynological sampling. The lower part of the Nahr Umr Formation consists of a large variation of sedimentary facies, including sandstones, claystones, oolitic ironstones and carbonate mudstones and wackestones. In addition, locally, carbonate...

... in other basins. Upstream Oil & Gas sandstone cement chlorite mineral flow in porous media oil field rock permeability carbonate Reservoir Characterization Fluid Dynamics acid treatment chemical treatment illite structural geology cement Filtration property clay mineral...

... Abstract For more than 30 years of exploration in Tunisia, the Upper Cretaceous Campanian - Maastrichtien Abiod formation carbonates were not considered as a potential reservoir. This view was held in spite of the numerous hydrocarbon shows observed in several wells. With the discovery of oil...

... Abstract Carbonate rocks often present complex pore-structures involving multiple porosity systems with various interconnectivity degrees. These pore-systems, from microporosity to vugs/fissures, drastically affect petrophysical properties. Pore network models are well suited to calculate...

... Abstract Carbonate reservoirs are usually heterogeneous and may contain rock material from several pore classes. The main pore classes in carbonates are inter- and intraparticle porosity, intercrystalline porosity, mouldic and vuggy material, and also chalk and chalky micro-porosity...