... the conventional Surfactant Alternating Gas (SAG) technique, but then the technology was optimized to better suit the operating conditions of the fields, and the last interventions have been done dispersing the foamer chemical in the gas stream. This technology has been implemented in most of the fields...

... thermal method bitumen steam-assisted gravity drainage hirasaki steam chamber batot surfactant application chemical flooding methods gas injection method & chabert & delamaide cuenca foam abdul ghani foam quality porous media ayache steam quality Introduction Even though...

... rates average 15 Mm3/d and liquid loading is the main challenge in the field to achieve a stable production. Technologies commonly used in Centenario field to deal with liquid loading consist of continuous surfactant injection to the bottomhole with capillary string, velocity strings, well head...

... and schedules to assure a good quality and stability of the preformed foam is also discussed. The CSS-foam injection pilot was performed in Teca - Cocorna field. The cumulative surfactant injection was between 3 to 5 tons distributed between two mature wells under CSS at a concentration of approximately 2500...

... isolation was achieved. In addition, Mechanical factors such as reciprocating the casing once carried to Depth, and casing centralization with Standoff greater than 80%, guarantee zonal Isolation in the área of productive. The addition of a Surfactant to the formulation of the washes favors the water...

... to control fluids mobility and improve sweep efficiency. Moreover, using foam as a hydraulic fracturing fluid provides rapid cleanup during flowback. Although it is common to use surfactants to generate and stabilize foams, they tend to degrade at high-temperatures (>212°F) and in high-salinity...

... the formation by adding surfactants, in proper concentrations, to frac water favoring the process of imbibition. This study combines the effect of wettability and IFT alteration by surfactants and the corresponding impact on spontaneous imbibition in ULR from the Permian Basin by conducting contact angle...

... Abstract Surfactant-Polymer flooding is usually not applied in low permeability reservoirs mainly due to injectivity problems in the presence of mobility control agents. Indeed, in the case of surfactant-polymer injection in low permeability formation, one of the major problem is to avoid...

... Abstract The synergism of mixtures of anionic and non-ionic surfactants adsorbed at the water/alkane interface was studied using mesoscopic Dissipative Particle Dynamic simulations. The effect of the mixtures of sodium m, p-exylbenzenesulfonate and sodium m, p-octylbenzenesulfonate...

... Abstract The use of proper fluid system is one of the most important factors in the success of well stimulation processes like hydraulic fracturing and matrix acidizing. Viscoelastic surfactant (VES) based fluids are among stimulation fluids which recently have been used with promising results...

... performance recollection surfactant MEA water content Implementation selection heavy oil product ad-1 apiay-x well crude capillary viscometer viscosity shear rate dosage evaluation frictional pressure loss artificial lifting system viscosity reducer Abstract The light crude reserves...

... observed. universidad nacional inhibition effect surfactant upstream oil & gas concentration asphaltene deposition pi improvement damage removal enhanced recovery adsorption equion energia ltd damage scenario gas injection method durability scenario solid surface permeability...

... %, in comparison with conventional methods. conventional method surfactant annular drillstem/well testing fluid level well lisama 91 application mugrosa formation deposit chemical treatment flow assurance downhole intervention stimulation drillstem testing lisama field reservoir surveillance...

..., through exposition of hypothesis. Afterward we will work with the crude oil-gas systems. The method used to create or produce foam consisted in bubbling air in the engine oil phase containing surfactant, alcohol and water different concentrations. The tests basically were carried out to different air flow...

... Abstract In design and implementation of Alkali Surfactant Polymer (ASP) formulation for IOR processes, the inorganic alkali component acts as sacrificing agent avoiding the surfactant adsorption and decreasing the IFT. Nevertheless, as a part of this process there are some potential problems...

... Abstract Chemical flooding is a process that improves recovery efficiency based on injection of a chemical system that contains surfactants and polymers. Surfactants are substances that alter the interfacial tension and promote a miscible displacement with residual oil. Polymers decrease...

... Viscoelastic surfactants have been used as water thickeners in gravel pack operations for almost a decade. More recently, they were introduced for frac-packing and fracturing operations, with the objective to improve well productivity by eliminating polymer damage/residue. Viscoelastic...

... gravel surfactant reduce formation damage society of petroleum engineers ferneyne injection precipitation spe 69452 concentration case study declination formation damage acidizing laboratory test novel methodology upstream oil & gas well intervention production enhancement acid...

... with water were carried out at room temperature and at 60°C, while imbibition experiments were accomplished at 60 and 80°C. Both studies were made firstly with water and then with water and surfactant, reaching low interfacial tension conditions. The experiments were designed to reproduce reservoir...

... is properly adjusted by adding polymers, sweep efficiency and recovery can be improved (2) , but it cannot reduce S or in a water-wet reservoir. Addition of an alcali and a surfactant (3) to the polymer thickened water have been shown to reduce S or . ASP flooding is a chemical oil recovery method...