... was not affected by temperature ranges of up to 50°C, a pH range of 4-5- 9.0, and NaCl concentration of 50g/l and Ca concentration of 25g/l. ( Muthusamy et al., 2008 ). In addition, surfactant also possess the ability to reduce the surface tension of water to 25m N/M and the interfacial tension of water/hexadecane...

... in altering the dynamics of both the rheological properties development and the interfacial tension. oilfield chemistry rock/fluid interaction droplet chemical treatment frequency elasticity enhanced recovery fluid compatibility rheology experiment composition aqueous phase interface...

... and reduce interfacial tension (IFT). The method may be cost-effective if the IFT can be lowered enough to cause significant mobilization of trapped oil, while also avoiding formation of gel/viscous microemulsions. This paper investigates the potential field application of injecting alkali to generate...

... vapor pressure capillary pressure interfacial tension nanotube fluid-solid force equation of state fluid-solid interaction phase behavior contact angle phase equilibrium Introduction Owing to the abundance of nanopores in shale, there have been many studies on the phase behavior...

.... Fundamentally, tertiary amines comprise functional groups of hydrophilic and hydrophobic components. These unique features enable this chemical additive to wet both water and heavy-oil, yielding potential interfacial tension improvement. Furthermore, the reversible chemical reaction of this chemical additive...

... time, while increasing water-shale interfacial tension reduces the optimum soaking time. The effect of different initial water saturations on optimum soaking time was found to be insignificant. If real time shut-in pressure data are used, this technique can translate the pressure data to dynamic crack...

... Abstract Graphene as surfactant carrier material for EOR/IOR is used. Its performance is evaluated through adsorption, desorption, interfacial tension and emulsification studies. Moreover, the kinetic and thermodynamic parameters are identified in order to understand the physicochemical...

... Abstract Surfactant-based EOR has thus far been demonstrated to be a potentially effective solution to improve the hydrocarbon recovery from Unconventional Oil Reservoirs (UORs). The most discussed functions of a surfactant are either Interfacial Tension (IFT) reduction or Wettability (WTA...

... nanoparticles. A light crude oil with 38° API obtained from a reservoir in Colombia was used for wettability alteration of sandstone samples, interfacial tension experiments and displacement tests. For evaluation of wettability changes, the rock samples were obtained from an outcrop sandstone. A 50/60 sieve...

... and they have the potential to enhance the recovery of oil and gas from a variety of rock pores (EOR). Nanofluids can be used as an important tool to alter the properties of the formations. We examine here the underlying mechanisms, including the wettability alterations and reduction of the interfacial tension...

... interfacial tension Abstract Waterflooding in low permeability, fractured and oil-wet carbonate reservoirs yields extremely low oil recovery due to bypassing through fractures and little imbibition into the matrix resulting in a large amount of oil remaining in the reservoir. Gravity-aided gas...

... pressure curves provide a possible general approach to characterizing the systems that have different degrees of water-wetness. The rate of increase of the wetting phase saturation is dependent on the interfacial tension, viscosities of the water and oil phases, core geometry, and surface boundary...

... injection wettability alteration fracture chemical flooding methods Efficiency aqueous phase chemical solution reservoir micromodel enhanced recovery Surfactant Flooding solvent retrieval matrix interfacial tension liquid Introduction Heavy-oil recovery from heterogeneous systems...

... of a new class of surfactants for cEOR is introduced. These fatty acid amide surfactants are mostly synthesized using abundant natural resources, are biodegradable, lower interfacial tension, and show low adsorption to reservoir rock surfaces. This class of fatty acid amide surfactants can be considered...

... mixed-wet carbonate complex reservoir Saline Aquifer oil reservoir scale observation carbonate rock supercritical co 2 interfacial tension core sample society of petroleum engineers pore scale observation Introduction With rising fossil-fuel consumption accounting for more than 85...

... protocols to address the aforementioned challenges, and the performance of the surfactants in laboratory validation tests. All of these efforts together produced a successful field-proven green product with low surface/interfacial tension, excellent thermal chemical inertia, ideal rock adsorption...

... Abstract Carbon capture and storage (CCS) has been presented as one of the most promising methods to counterbalance the CO 2 emissions from the combustion of fossil fuels. Density, viscosity and interfacial tension (IFT) are, among others properties, crucial for the safe and optimum transport...

... in the presence of studied ionic liquids and in the studied solvents increases about 60 %, when compared with the solutions of heavy crude oil in solvents without ionic liquids. Measured interfacial tension values between solutions of ionic liquid and crude oil reveal that these ionic liquids are successful...

... core irreducible water mixed-wet core Upstream Oil & Gas normalization technique experiment wettability interfacial tension saturation society of petroleum engineers flow in porous media permeability gas oil relative permeability relative permeability gas injection water-wet core...

... reduction.The viscosity of oil samples was measured at various temperatures. The performance of this nano-emulsion was also compared to an industrial viscosity reducer. In addition interfacial tension tests were performed with the oil samples. A significant reduction in the interfacial tension of heavy oil...