... 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 flood oil saturation...

... 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 sequence included the following steps: Initial...

... in the dynamic model. Capturing time-lapse changes of Water/Gas saturation as observed from the TDT/PNC logs in the model will mimic fluid flow and saturation changes in the dynamic model closer to reality. Identifying the amount of water unwantedly being injected in to the reservoir due to casing integrity...

..., kaolinite, and kerogen. The Simandoux equation was chosen to evaluate the fluid saturations. No special core data were available for the Najmah Shale, so values measured in an adjacent formation were used, i.e., a cementation exponent (m) of 1.876 and a saturation exponent (n) of 1.886. Outputs of multi...

... Abstract In a reservoir, gravity forces lead fluids to stratify according to their density, and transitions zones appear around contacts (water-oil and gas-oil contacts). These transitions zones are gradual variations of saturation of each phase. These saturations are often generated using...

..., 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...

... SWCT tests were performed and the difference in residual oil saturation from post water flood and post ASP injection tracer tests quantitatively determines the displacement efficiency of the ASP slug. The tracer chemicals for the tests included a hydrolyzing, partitioning tracer (ethyl acetate) and two...

.... 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 in missed pay and up-dip...

...-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 Introduction and Geological...

... 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...

... increased EM propagation. As the signal propagates through the seal, variations in the fluid saturation of the bounding reservoirs modulates the signal amplitude and velocity. This technique will enable improved EM surveys for reservoir characterization. The concept, known as Proximity Sensing, has been...

... 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...