... analytical verification, stringent batch-to-batch validation, and collaborative formulation harmonization across the supply chain. geologist pvt measurement enhanced recovery application rock type real time system waterflooding chemical flooding methods geology surfactant concentration oil...

... flooding. clastic rock flow in porous media fluid dynamics rock type enhanced recovery reservoir geologist surfactant concentration adsorption wettability anionic-nonionic stability efficiency ift substance composition surfactant concentration sedimentary rock geology sandstone...

... application fluid dynamics stability surfactant solution drilling fluid management & disposal steam-assisted gravity drainage pressure drop application surfactant foam test nacl brine foam experimental assessment apparent viscosity surfactant concentration foam quality pressure ratio high...

... ). The objective of this work is to measure the impact of surfactant concentration and gas fractional flow on foam generation. Theory ( Rossen and Gauglitz, 1990 ; Kam and Rossen, 2003 ) relates foam generation to gas fractional flow and, indirectly, to the stability of foam films, or lamellae, which in turn...

... after reducing the surfactant concentration by 75% and inducing a different in-situ salinity profile as compared to earlier studies. An innovative method for measuring surfactant adsorption using Liquid Chromatography and Mass Spectrometry (LC-MS) was developed, which could provide individual dynamic...

... reservoir concentration Artificial Intelligence viscosity oil saturation surfactant tracer surfactant concentration carbonate formulation separation Introduction West Salym (WS) is a medium-large oil field located in West Siberia with STOIIP of 280 MMm 3 . The main oil bearing sand bodies...

... was evaluated by measuring the solubility, interfacial tension (IFT) and phase behavior. The robustness of the formulation was assessed by changing the surfactant concentration and the brine salinity. Sandpack experiments with the addition of tracers were performed to determine the dynamic adsorption...

... the impact of the higher surfactant concentrations (pH= 9.3, Water Viscosity= 10cP, surfactant= 400 ppm) on treatment facilities. The flow-loop was able to dehydrate oil but more separation capacity with appropriate demulsifier is required to achieve sellable oil specs. The water quality deteriorated...

.... concentration stability surfactant solution Upstream Oil & Gas internal olefin sulfonate surfactant alkyl benzene sulfonate surfactant concentration enhanced recovery Chemical Stability deionized water molecule sulfonate chemical flooding methods alkyl glyceryl ether sulfonate sulfate high...

.... The created oil in water emulsions break easily at surfactant concentrations higher than the CMC, yielding IFTs higher than the threshold. This observation was also seen in a system containing dodecane. At the CMC of both anionic and cationic surfactants, the IFT between dodecane and an aqueous phase...

... concentration injection SP formulation enhanced recovery adsorption membrane separation performance reservoir chemical flooding methods polymer salinity surfactant surfactant concentration target salinity reference synthetic brine crude oil formulation coreflood test composition...

... mN/m order of magnitude in a concentration range of 0.05wt%~0.5wt%. At fixed polymer concentration (2000 mg/L) and surfactant concentration (0.3wt%), the binary system presents significant viscosifying capability, interfacial activity, adsorption resistance, shear resistance, aging stability, etc...

... formulation concentration high temperature surfactant concentration enhanced recovery sandstone star-shaped polymer SP formulation characteristic peak Reservoir Conditions carbonate reservoir chemical flooding methods Sandstone Reservoir new surfactant polymer formulation reservoir interfacial...

... and capillary number. First, a series of numerical simulation was conducted to investigate the effect of surfactant concentration on pressure drop across the core for the foam flooding in the absence of oil. To this end, the dry-out and gas velocity functions in the foam model were determined from...

.... chemical flooding methods enhanced recovery venezuelan extra-heavy oil experiment formulation concentration viscosity injection Upstream Oil & Gas Oil saturation profile crude oil surfactant concentration polymer extra-heavy oil surfactant Oil Recovery reservoir Introduction...

..., clear and stable mixture of anionic/nonionic surfactants in the composition range fw = 0.1 – 0.8 (fw being the weight fraction of the nonionic surfactant) at 0.01 wt% total surfactant concentration were generated above 70 °C. Clear, transparent and gel-free oil-in-water phase behavior with relatively...

... surfactant solution reservoir mobility control fractured reservoir soak period surfactant concentration surfactant injection rate Efficiency Injection Rate foam quality Introduction Naturally fractured carbonate reservoirs hold more than half of the world's oil reserves and contribute...

... achieved for cores with permeability less than 10 mD. An innovative experimental method was also developed to achieve high initial oil saturation in tight rocks. chemical flooding methods oil bank saturation surfactant concentration foam quality breakthrough surfactant mobility control...

... process experiment foam injection foam agent enhanced recovery Phase Behavior surfactant injection tergitol np-9 foam permeability enhanced oil recovery chemical flooding methods concentration stability alkaline surfactant concentration Oil Recovery Introduction In chemical EOR...

... viscosity spe 154044 ammonium bromide polymer demulsifier concentration oil droplet surfactant concentration enhanced recovery emulsion demulsifier asphaltene interfacial tension chemical flooding methods concentration stable emulsion surfactant emulsion stability stabilization...