... the precipitation and dissolution of minerals in space and time scales. During the training process, root-mean-squared-error (RMSE) was chosen as the loss function to avoid overfitting. To gauge prediction performance, we applied the trained model to predict the concentrations of different mineral on the test...

... tensor injection concentration equation production decline carbonate reservoir complex reservoir nfr conductivity drawdown stimulation acid concentration Introduction NFRs such as carbonates ( Fig. 1 ) constitute approximately 50% of known hydrocarbon reserves ( Garland et al. 2012...

... of Sr isotopes and element concentrations. The analytical results show outstanding negative shifts of oxygen isotopes in some intervals, whereas carbon and strontium isotopes have a minor or little change. These intervals also contain lower element contents including strontium. It is believed...

... social responsibility wax inhibition enhanced recovery asphaltene inhibition pvt measurement subsurface storage oilfield chemistry co 2 wax remediation injection viewpoint assurance pre-risk evaluation case study reservoir characterization concentration ccus asphaltene concentration uae...

...+ ), surfactant aqueous solution (SAS), and foam concentrations along with the liquid production rate on the oil recovery factor during SWAF-flooding. Based on the numerical results, the experimental coreflooding data were accurately history-matched using the proposed model with a minimal error of 4.74% applying...

... technology. enhanced recovery asset and portfolio management concentration python script variable salinity scenario reservoir formation water integrated asset modeling water salinity contribution seawater water salinity management fpso waterflooding Simulation salinity evolution water...

... recovery. We developed a mathematical model, based on the most important transport and surface phenomena. Non-equilibrium mass transfer between phases during the interception of the chemical solution droplets with the liquid phases. Active chemical concentration in miscible liquid phases is much lower...

... information gas tracer tracer test analysis upper interval particle tracer chemical tracer Upstream Oil & Gas middle interval communication tracer arrival accommodation space injector well injection Reservoir Characterization injector concentration numerical simulation connectivity...

... of the samples. Bulk rock and clay fraction (<4 micron) X-ray Diffraction (XRD) were performed on approximately 10 g of each identified cutting litho-type/texture to quantify the concentration of crystalline minerals. Later, all selected cuttings with distinct rock textures/types underwent digital rock...

... applied to the given reservoir and well conditions. Obviously, the knowledge of IFT and its dependence on surfactant concentration, salinity and temperature is not sufficient to understand all the physical mechanisms involved in a coreflood study. The phenomena are in fact extremely coupled...

... Upstream Oil & Gas concentration salinity enhanced recovery adsorption composition complexity polymer sensitivity surfactant microemulsion resolution viscosity investigation injection saturation Reservoir Conditions interfacial tension oil recovery conference permeability...

... to the symmetry, the concentration gradient at the middle of the fracture is equal to zero [ 13 ]: (10) ∂ c f i ( x , y = 0 , t ) ∂ y = 0 The boundary conditions for the matrix is: (11) ∂ c m α i ( y = h , t ) ∂ y = 0 enhanced recovery...

... pressure, namely, the ferrofluid phase dynamic pressure, the fluid magnetic pressure, and the magneto-strictive pressure, while, the magnetic normal pressure is neglected in this study. Physical variables including water-nanoparticle suspension saturation, nanoparticle concentration, and pore wall/throat...

... Upstream Oil & Gas particle salinity saturation approximation oil displacement fine migration wettability alteration Oil Recovery enhanced recovery concentration formation damage salinity water porous media equation Low-salinity water flooding has become one of the most promising...

... model consists of equations of pressure, saturation, heat, nanoparticles concentration in the water–phase, deposited nanoparticles concentration on the pore–walls, and entrapped nanoparticles concentration in the pore–throats. We propose a multiscale time splitting IMplicit Pressure Explicit Saturation...

... model shear polymer concentration chemical flooding methods Upstream Oil & Gas injectivity concentration pressure equivalent analytical solution reservoir simulation polymer injectivity simulator polymer viscosity correction pressure difference well gridblock injection concentration...

... time viscous fingering solvent finger sweep efficiency fingering convection-diffusion equation SAGD mobility ratio mobility contrast Oil Recovery concentration frontal instability Péclet number peclet number equation Initially, a sharp interface between solvent and oil was assumed...

... where C ^ surf and C surf represent the adsorbed and total concentrations of surfactant in a given gridblock In addition, the historical maximum of ω in each gridblock is used in this interpolation. Another option, adopted in this work, is inputting a constant user-defined...

..., oil production rate was recorded as well. Hydrophilic silica nano-structure particles and hydrophilic silica colloidal nanoparticles with different concentration were utilized in above experiments. The objective of this experimental study is to investigate wettability change of core during nanofluid...

... behind the active region where the surfactant has more concentration. In this approach, the effective salinity profile is around the optimum salinity in the active region. 3- Designing new surfactant formulation ( Flaaten et al. 2010 ): The purpose of designing new formulation is to change...