... offshore technology conference permeability viscosity upstream oil & gas quantity production unit recovery factor oil production campos basin oil recovery Abstract This paper describes recent efforts into continually increasing the recovery factors in the Campos Basin reservoirs, which...

... the chemical composition of the injected water, tests performed in laboratory and in pilot units have shown significant oil recovery (5 to 40%), when compared with a field with traditional water injection. The oil industry has shown great interest in smart water (SMW). Basically, the SMW comprises a seawater...

... with miscible and immiscible CO 2 flooding were studied, to visualize the presence of calcite precipitation and its impact on oil recovery. injection injector co 2 oil production distribution map calcite precipitation salt precipitation reservoir precipitation flow in porous media upstream oil...

... Abstract In this work, we present a multiscale approach based on first-principles calculations and classical molecular dynamics methods, to investigate the enhanced oil recovery via low-salinity water injection (EOR-LSWI). Salting-in effect, wettability, pH alteration, electrical double layer...

... Abstract Carbonate reservoirs are characterized by neutral or oil-wet surfaces and the injection of water as a secondary recovery method may result in low oil recovery factors. The injection of low salinity brines has shown to be a method that can lead to significant additional oil recoveries...

... Abstract Surfactant losses due to adsorption in the hydrocarbon reservoir is a major concern in surfactant based chemical enhance oil recovery (chemical EOR) methods because it results in the loss of optimum concentration required for adequately reducing oil-water interfacial tension (IFT...

... injection input data waterflooding molecular simulation adsorption energy equation of state fluid modeling reaction simulation calculation oil recovery geochemical reaction chemical equilibrium constant equilibrium constant chemical equilibrium free energy enhanced recovery sol...

... tomography (CT), respectively. Additionally, CT scans provided the Swi profiles throughtout the sample. The results of production have shown that oil recovery with injection SW was 20.8% original oil in place (OOIP) and additional recovery from the injection of SW10X of 17.33%OOIP while the final recovery...

... upstream oil & gas surfactant oil recovery enhanced oil recovery material artificial intelligence machine learning effectiveness polymer concentration technology conference screening criteria enhanced oil recovery recommendation 10-fold cross validation alkaline test data...

... and wettability alteration in oil reservoirs is needed when Smart Water EOR potential for reservoirs should be predicted. Both field observations and laboratory experiments confirm that seawater behaves as a Smart Water in limestone reservoirs, significantly improving the oil recovery. Laboratory core...

... Abstract Polymer flooding is one of the well-established and commercially-available techniques for enhanced oil recovery in the petroleum industry. It is the most widely adopted chemical enhanced oil recovery technique in sandstones, but its application in carbonates is limited due to the harsh...

... the impacts of including or neglecting relative permeability hysteresis phenomena. Conclusions of this work contribute to increase predictability and reduce uncertainties related to field-scale implementation of WAG technology. Knowledge acquired from this study promoted a better estimation of oil recovery...

... Abstract Brine with designed ionic composition has been shown by many authors as a technique that improves oil recovery, allowing an increase of up to 20% of the total oil saturation of carbonates rocks samples during laboratory experiments. The main objective of this research...

... The objective of this research was to study the formation of water-in-oil microdispersions due to crude oil-brine interactions as a novel mechanism that improves oil recovery with low salinity waterflooding in carbonate formations. This novel interpretation was studied by intergrating...

... Abstract Hybrid enhanced oil recovery (EOR) as polymer-assisted carbonated waterflood (PCWF) improves mobilities of both aqueous and oleic phases. The process introduces synergetic effect modifying reservoir wettability and fluids’ viscosity. These effects are the results of polymer rheology...

... (CAPEX), seawater treatment is generally driven by the need to mitigate injectivity loss or water compatibility issues such as the formation of hard scales. The emergence of engineered water as an enhanced-oil recovery (EOR) process has prompted the need to adjust seawater chemistry. Water chemistry...

... In the recent past, IOR/EOR technologies have been modified to include the effects of salinity of injected brine on oil recovery. Water Alternating Gas (WAG) is one such tertiary oil recovery process in the field. It greatly improves the synergy of various individual mechanisms underlining EOR...

... upstream oil & gas bohai offshore oilfield edge-water heavy oil reservoir thickness steam flooding process thermal recovery process offshore heavy oil reservoir oil recovery bohai oilfield enhanced recovery oilfield reservoir thermal method sagd heavy oil reservoir Zhang F.J...

... permeability curve enhanced recovery fluid dynamics concentration petrobras oil-in-water emulsion injection seawater injection experiment emulsion injection recovery factor upstream oil & gas capillary number emulsion oil recovery flow in porous media surfactant solution...

... recovery method to improve oil recovery for this field using the best strategy among water, gas, water and gas and immiscible water-alternating gas (IWAG) injection. Although those methods are highly used for carbonates among oil industries worldwide they are not commonly used in carbonates fields located...