... to be technically and economically an attractive candidate tertiary process. enhanced recovery brine salinity surfactant retention waterflooding concentration polymer concentration saturation chemical flooding methods coreflood viscosity delshad oil recovery reservoir upstream oil & gas sp...

... was to validate the efficacy of polymer and surfactant solutions in terms of residual oil saturation reduction and injectivity. This invovles comparing residual oil saturation estimates before and after chemical flooding while monitoring injection rates and corresponding wellhead pressures. The SWCTT injection...

... to match the relative contribution of different layers. TDT/PNC logs to capture time-lapse change in Water saturation. h L =   h a =   h b =   h c The same concept is utilized and ICD'S with similar nozzle configuration in a given compartment between two packers are manually...

... and sidewall core measurements, and standard and advanced open-hole logs were used to estimate net pay, porosity, oil saturation, and geomechanical properties. Formation evaluation of the Najmah Shale as a potential unconventional reservoir posed numerous challenges. These challenges included the ambiguous...

... pressure is computed from the PVT data and initial condition. For each cell of the geological model, capillary pressure between phases is calculated, and the saturations are extracted from the capillary pressure curve corresponding to the lithofacies of the cell. An uncertainty analysis based on Monte...

..., effective porosity, water saturation) was performed using the Kriging algorithm conditioned to lithofacies. From these full field models, sector models were created to capture geological heterogeneity at a smaller grid increment. Full-field facies were downscaled onto the sector model grids...

... in a full field dynamic setting. In case of grainstones with separate vug porosity, the non-connected vugs are connected through the macropore system. After drainage of the macropore and vugs, the micropores get invaded, which contributes well to the changes in saturation profile. In fractured limestone...

... EOR pilot (SWCT test) as per the currently adopted EOR maturation workflow in preparation for multi-well pilot testing. SWCT testing is a method for measuring fluid saturations in oil producing reservoirs. A SWCT test is typically carried out on a watered-out formation interval by injecting...

... and discoveries. This was followed by a detailed comparison to the wells containing oil shows and wells stated to be dry. In the study area, several wells are formally defined as dry with no shows, however, the SATLOG study indicates that some of these dry wells could hold significant hydrocarbon saturation...

... well logging multi-function lwd tool collaborative approach reservoir characterization predrill geomechanical model polarization horn kuwait density image saturation sand layer drilling minagish field resistivity contrast society of petroleum engineers shale operation resistivity...

... heterogeneous model optimum number hydraulic fracturing simulation model tight gas reservoir saturation model 1 optimization fracture half-length modeling & simulation fracture horizontal well society of petroleum engineers gas production reservoir porosity cumulative gas production hossain...

...-wet, moderately oil-wet and weakly oil-wet. Initially, the core samples were saturated with oil and then water flooding was conducted until irreducible saturation was achieved. Later, surfactant flooding was performed as a tertiary recovery technique. The experimental results demonstrate...

... reservoir saturation heavily depends on how far a signal can propagate before falls below the limit of detectability for a desired travel time accuracy. To evaluate the propagation range, we have defined the maximum transmission loss (MTL) before the limit of detectability as follows: (1) T L ( d...

... saturation reservoir equation Hcpvi WAG correlation society of petroleum engineers Reservoir Conditions Oil Recovery Introduction The oil producing sectors gave high importance to Water Alternating Gas (WAG) flooding method in the past several years. The method improves the sweep efficiency...

... & Gas Simulation imbibition sandstone sample Dernaika Reservoir Characterization drainage porosity core characterization saturation resolution core length permeability microstructure Introduction Core laboratory data has a major impact on the reservoir modelling process and can help...

... gas slug water slug saturation ss-gaw injection gas injection method injection period experiment ss-wag injection injection Oil Recovery Water Injectivity injectivity waterflooding slug size Sohrabi injection order water injection Introduction Waterflood and gas injection...

... of both gas and condensate liquid through reservoir rocks. In this study, the impact of condensate blockage on gas well deliverability was investigated by examining a number of flow parameters such as absolute permeability (K), critical condensate saturation (Scc), relative permeability shape and end...

... at an ultra-low interfacial tension (IFT) of 10 −3 mN/m. Furthermore, main parameters that could influence the results of surfactant model were optimized: flow rates, residual oil saturation (Sorc), correlated Capillary De-Saturation Curve (CDC), adsorption, and grid size effect. Interstitial velocity...

... Abstract This paper presents a field application of an advanced slim Pulsed Neutron Logging tool (PNL) for improved determination of hydrocarbon saturation as a key basis to evaluate the reliability of an ongoing enhanced oil recovery (EOR) cyclic steam stimulation (CSS) process...

... lead to lower residual oil saturation and when capillary number increased to a certain critical value(first critical value), the residual oil saturation could drop to a minimum value even zero. CDC shapes were different in water-wet and oil-wet media. Recovery can be improved by increasing flooding...