... 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...

... reservoir application enhanced oil recovery process visualization molecular dynamic upstream oil & gas molecular simulation sea water simulation enhanced recovery immersive experience fluid modeling atom human computer interaction eor process molecule composition surfactant...

... 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...

... consisted of a model oil (Exxsol D80) with and without surfactants, and tap water. A comparison of the experiments with and without a mixing valve was performed. The experiments were conducted at different superficial liquid velocities and five different watercut values (The water cut is defined...

... Abstract Emulsions are formed during crude oil production due to the presence of natural surfactants and brine in the petroleum fluids. In addition, turbulence wich the produced fluids are subjected to, either initiated by differential pressure in the drawdown region near the wellbore...

... indicated that the preflushes with the fibers were able to clean and demulsificate the drilling mud much more efficiently than preflush without the fibers. Indeed, it was possible to optimize the amount of the preflush surfactants and still obtain excellent results. Some successful cases of field...

... density drill-in fluid to address depleted reservoir challenges. aphron foam emulsion formation damage upstream oil & gas drilling blind hollow sphere surfactant reservoir limitation drilling fluids and materials technology conference fluid system stability application drill...

... offshore technically and economically viable. shear rate reduction polymer application surfactant viscosity evaluation consumption chemical consumption enhanced recovery argillier concentration enhanced oil recovery chemical enhanced oil recovery stability separation compatibility...

... Abstract Mixtures containing surfactants and polymers to be used in enhanced oil recovery operations should display special features: most notably low (or ultra-low) oil/water interfacial tensions and moderate viscosity. There is a variety of methods employed to assess formulations performance...

... to minimize cement contamination. The cement contamination by spacer is affected by different types of surfactants that are used and it is important to understand the effect of each surfactant for successful recipe. Cementing simulation software can help achieve the objectives while planning a cement plug...

... as efficient drag reducing agents; polymers, synthetic and natural fibers, solid particles, different types of sand and solution of surfactants that form self-assembled structures7, 8, 9, 10. Due to the simplicity and low cost of these systems, the phenomenon of drag reduction has been extensively studied...

... OTC 24470 Wettability Alteration in Carbonates By Surfactants: The Effects of Interfacial Tension on this Process and Reflex in Porous Media Behavior M. F. Pinto, Petrobras. Copyright 2013, Offshore Technology Conference This paper was prepared for presentation at the Offshore Technology...

... carbonate reservoirs, a viscoelastic surfactant (VES) based self-diverting acid system was deployed. It consists of a VES and HCl. The new system self-diverts triggered by the increases in viscosity as the acid dissolves calcite and dolomite. The viscosity of spent fluid is reduced by produced hydrocarbon...

... effect has been investigated by several researchers to change the reservoir wettability by optimizing rock-fluid interactions using specific surfactant-brine systems during exploi-tation. It has been concluded that, beyond formation evaluation, phenomenological observations and the optimization of rock...