...Sonicator Nanoparticles Abstract Surfactants and nanoparticles (NP) frequently act as stabilizers for oil and water emulsions. There is a need to investigate whether such NP stabilized emulsions (also known as Pickering emulsions) require different treatment for break-up, as compared...

... enhanced recovery adsorption spontaneous imbibition upstream oil & gas concentration imbibition solubilization shengli oilfield mechanism htpf-nf experiment quartz flake sior operation resistance waterflooding surfactant reservoir ift journal petroleum science...

... started in 2010. There were four types of stimulation methods attempted during 2010 – 2020 before successfully unlocking the most suitable method in aromatic solvent stimulation. The previous methods were surfactant, microbial, mutual solvent (musol), and thermochemical stimulation. Surfactant stimulation...

.../absence of bitumen. This paper, as a continuation of the work mentioned above, presents the blending of ECA with surfactant A (a chemically different surfactant) at 50/50 ratio and different injection foam qualities (30% to 90%) for further improvement of steam foam performance at 300°C without bitumen...

... One approach to address these challenges is to deliver the surfactant to areas in the reservoir using nanocarriers. The nanocarriers have the potential to deliver surfactant molecules to targeted locations in the reservoir while reducing surfactant adsorption onto the rock. One type...

... of carbonate reservoirs, bypassing in low-permeability matrix during waterfloods, and dynamic imbibition of surfactant into the low-permeability matrix. The results of homogeneous coreflood tests showed that both secondary-waterflood and secondary-surfactant flood can achieve high oil recovery (>50%) from...

...Introduction Abstract Improved oil recovery in carbonate rocks through modified injection brine has been investigated extensively in recent years. Examples include low salinity waterflooding and surfactant injection for the purpose of residual oil reduction. Polymer addition to injection...

..., Vargo et al. (2000) reported tighter emulsions due to polymer injection that mandated a change in demulsifier concentration. In an alkaline/surfactant/polymer flood, White et al. (2017) observed an increase of oil-in-water content in the produced waters at the test separator. This work outlines...

.... Thus, it can take a considerable amount of testing and experimenting to balance these competing requirements, which includes adding new surfactants, varying foam stabilizer concentration, changing base fluid or the foam preparation process. After obtaining the foam rheology, the surface pressure can...

... pressure in the fracture and control the height of the rupture. The goal of this research is to develop such fluid. hydraulic fracturing proppant polymer concentration composition surfactant frac fluid fracturing fluid porous medium experiment proppant transport air bubble fracturing...

... systems comprising of small concentrations of a low cost, low molecular weight ketone and a non-ionic surfactant in association with low-salinity brine. The experiments were conducted in carbonate cores from a Permian Basin San Andres Formation. Four different oil displacement scenarios were investigated...

...Application of Biosurfactant in EOR: Nano and Bio-based Surfactant Formulation In conventional EOR operations, surfactants are added into the injected aqueous solution to form oil-in-water macro-emulsion, such that the higher oil recovery can be achieved. The typical size of the macro-emulsion...

... to the formation even from non-viscous fracturing fluids remains a concern ( Carman and Cawiezel 2007 ). Viscoelastic surfactants (VESs) were proposed as polymer-free and non-damaging viscosifiers for hydraulic fracturing and this technology has since been successfully applied in the field ( Stewart et al...

... It is commonly believed that the surfactant cloud point is the temperature application limit for a nonionic surfactant. Utilizing surfactant in a reservoir with a temperature greater than its cloud point has been suspected to lead to non-uniform surfactant distribution in the reservoir due...

... To deploy gaseous foam as a conformance solution in a WAG process, either a water-soluble foaming surfactant slug is injected at the end of water cycle ( Patil et al. 2018 ) or a gas-soluble foaming surfactant slug is injected in the beginning of a gas cycle ( Katiyar et al. 2020 , Mirzaei et al...

... While cationic surfactants are seeing successful applications in the Yates oil field, general applications of this type of surfactant for EOR has only become popular in recent years due to commercial availability and economic viability. However, research showing the advantages of cationic...

... Abstract Complex surfactant formulations have been applied to induce ultra-low interfacial tension (IFT) (e.g., 10 −3 mN/m) between the displacing water phase and the displaced oil phase in chemical enhanced oil recovery (CEOR), where the residual oil after waterflooding can be largely...

... Abstract The objective of this paper is to structure a data-driven-based workflow to design and optimize alkali-surfactant-polymer flooding ( ASP ) projects. Various objective functions from the techno-eco perspectives are considered to obtain comprehensive optimum ASP slug formulations...

... Abstract Achieving mobility control of steam in porous media has been approached by the implementation of foaming surfactant additives; however, foam generated with surfactants lack stability at high temperatures (≥ 200 °C). In this study, a nanofluid was formulated for steam co-injection...

... The water-soluble surfactant, SURFONIC ® TDA-9, an ethoxylated branched tridecyl alcohol with an average of 9 ethylene oxide (EO) groups ( Figure 2 ), was received from Indorama Oxides and Derivatives immediately prior to the phase behavior experiments. Abstract This study attempts...