... have been injected during waterflooding. However, the effectiveness of biocides, particularly within the context of representative reservoir conditions like temperature, pressure, and water composition (salinity, carbon source and abundance, sulfate concentrations, etc.), has not been thoroughly...

... interfacial system to generate a dataset of viscosity values as a function of different temperatures, surfactant concentrations, and salinities. The viscosity testing and training data are computationally measured using the Einstein relation of the Green-Kubo formula. Several machine learning (ML) based...

... simulated core temperature gas injection method artificial intelligence flammable pseudo-component fraction thermocouple complex reservoir modeling & simulation experiment oxygen asphaltene geology reaction heavy oil play combustion concentration air injection university residue...

... Abstract Polymer flooding is a widely employed Enhanced Oil Recovery (EOR) technique, aimed at improving sweep efficiency and maximizing hydrocarbon recovery. Accurate monitoring of polymer concentration in production fluids is essential for optimizing EOR operations and assessing reservoir...

.... The injection process for the first pattern started on December 14, 2020, entailing a cumulative injection of 6,344 barrels of water containing TAP at an injection rate of 700 barrels per day. The TAP concentration gradually increased from 3,500 ppm to 12,000 ppm. Subsequently, the second injection pattern...

... polymer at the field scale, yard-scale tests are an important component in the overall screening process. Yard-scale tests identify polymer mixing operating envelopes in terms of mother solution concentrations and more importantly sensitivity of the mixed polymer with respect to variable water quality...

... geology surfactant flow in porous media rock type sedimentary rock carbonate rock mineral chemical flooding methods core analysis formulation salinity concentration wettability alteration enhanced recovery brine permeability spontaneous imbibition pw 40 cationic surfactant experiment...

... initial oil compositions and residual oil saturations in the reservoir using reactive transport modelling. Geochemical parameters, such as concentrations of CO 2 , Ca 2+ , HCO 3 - and pH are analysed as the propagating injection fronts reach the producer block. The study uses a 1D model of WAG...

... condition in the reservoir. The injection and production rates were balanced for the test duration. Bottom-hole temperature is about 85°C. geology geological subdiscipline tracer tracer test analysis petroleum engineer society producer tracer history application concentration compound nsa...

... this goal, four gel systems were investigated. The influence of three parameters has been evaluated, namely polymer concentration, crosslinker concentration and aging temperature. Aging tests were performed at reservoir temperature and gelation tests at slightly lower temperature, representative of near...

... injection retention asp asp coreflood saturation geologist chemical flooding methods reservoir formulation development concentration Introduction The combination of alkali, surfactant, and polymer components within the ASP approach offered the potential to yield considerable value...

... to design and optimize a polymer flood including the selection of the best polymer to use for specific reservoir conditions. The new polymer viscosity model implemented in UTCHEM can be used to calculate polymer viscosity more accurately as a function of polymer concentration, shear rate, salinity...

..." concentration, high and low dosages did not show non-equilibrium effects. Lew et al. (2022) also examined polyacrylamide adsorption under stirred conditions, though using powdered calcium carbonate (~3 <m) and report kinetic equilibrium after ~18 hours. To extend the understanding of the adsorption...

.... Mixing the two streams too close to the wellhead led to substantial variations in wellhead viscosity measurements. Dedicating individual pumps for injection into a given well provided desirable flexibility in controlling rates and concentrations of polymer for the well. Monitoring produced salinity...

... employed a meticulously designed injection scheme to evaluate the impact of surfactants on improving polymer injectivity. Given the low dosage application strategy, it is imperative to choose a surfactant that can consistently maintain a low IFT at low surfactant concentrations. The preliminary IFT scans...

... for designing hybrid approaches that optimize EOR techniques tailored to fractured reservoirs’ complexities. geology geological subdiscipline geologist enhanced recovery reservoir surfactant sedimentary rock rock type spontaneous imbibition injection mechanism concentration fractured reservoir...

... sedimentary rock geologist geology surfactant slickwater batch surfactant 2 criteria mudrock enhanced recovery concentration hydraulic fracturing mudstone stability aqueous stability polymer surfactant 1 composition viscosity spe improved oil recovery conference rock type chemical...

... chemistry separation and treating drilling fluid management & disposal agent experiment emulsion partition coefficient salinity partitioning agent application egbe anionic surfactant emulsion breaker chemical treatment enhanced recovery concentration demulsifier breaker nonionic...

... wettability and facilitating spontaneous imbibition in the presence of the PLA diverter and with different Eagle Ford samples. Post-stimulation monitoring of produced water for total dissolved solids (TDS) and surfactant concentration demonstrates the extent of treatment dispersion to the formation...

.... The dilute concentrations of polymers (1000 to 50000 ppm) were considered to dissolve in CO 2 at 60 and 80 °C. According to the cloud point pressure results, the small molecule CO 2 -soluble polymers dissolved in carbon dioxide at pressures consistent with gas-based EOR methods (less than 2500 psi) at both...