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Dynamic interfacial tension measurement method using axisymmetric drop shape analysis [PDF]

open access: yesMethodsX, 2018
The current method describes a simple modification to the dynamic and equilibrium interfacial tension (IFT) measurement in a multiphase system (gas-liquid/liquid-liquid) by the Axisymmetric Drop Shape Analysis (ADSA) pendant drop technique.
Nikhil Bagalkot   +2 more
doaj   +5 more sources

Exploring the Effect of Relaxation Time, Natural Surfactant, and Potential Determining Ions (Ca2+, Mg2+, and SO42−) on the Dynamic Interfacial Tension Behavior of Model Oil-Brine Systems [PDF]

open access: yesHeliyon
This study examined how the concentration of asphaltene and divalent ions in various salinities affects the interfacial tension (IFT) between a model oil/brine using the pendant drop method. The oleic phase consisted of a mixture of toluene and n-heptane
Amir Mohammadi, Mahsa Parhizgar Keradeh
doaj   +2 more sources

A novel algorithm for modeling gas–oil dynamic interfacial tension (IFT) and component exchange mechanisms [PDF]

open access: yesScientific Reports
Interfacial tension (IFT) between two immiscible phases is a key parameter in various oil and gas industries, especially in enhanced oil recovery and Carbon dioxide capture and storage. There are several laboratory methods for measuring IFT, of which the
Ali Safaei, Masoud Riazi
doaj   +2 more sources

Performance evaluation of temperature-resistant nano-surfactants [PDF]

open access: yesE3S Web of Conferences, 2022
Surfactant flooding is a common technique in tertiary oil recovery. However, due to the high temperature of some reservoirs and the strong heterogeneity caused by their own geological conditions, the use of common surfactants in high-temperature ...
Wang Qunyi   +6 more
doaj   +1 more source

Physical-chemical approach to the calculation of adsorption characteristics of low molecular components of blood of the patients with heart failure [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Физика, 2022
Background and Objectives: Despite the fact that the methods of dynamic interfacial tensiometry and rheology are used to study blood and other biological fluids, in medicine there is no unified approach in the methodology of analysis and interpretation ...
Khomutov, Evgeni V.   +4 more
doaj   +1 more source

Effect of hydrophobic modification of cellulose nanocrystal (CNC) and salt addition on Pickering emulsions undergoing phase-transition

open access: yesCarbohydrate Polymer Technologies and Applications, 2022
The charge density of emulsifiers determines the thermodynamics and kinetics adsorption properties at the oil-water interface of an emulsion. This study examines the rupture resistance and stability of the crystallized dispersed phase based on the ...
Parinaz Ataeian   +3 more
doaj   +1 more source

Mathematical model of dynamic imbibition in nanoporous reservoirs

open access: yesPetroleum Exploration and Development, 2022
The oil-water imbibition equation in the nano-scale pores considering the dynamic contact angle effect, nanoconfinement effect, inertia effect, and inlet end effect was established, and the relation between the friction coefficient of solid-oil-water ...
Weibing TIAN   +5 more
doaj   +1 more source

Effects of Surfactant and Hydrophobic Nanoparticles on the Crude Oil-Water Interfacial Tension

open access: yesEnergies, 2021
Surfactants and nanoparticles play crucial roles in controlling the oil-water interfacial phenomenon. The natural oil-wet mineral nanoparticles that exist in crude oil could remarkably affect water-oil interfacial characteristics.
Xu Jiang   +5 more
doaj   +1 more source

Computational Fluid Dynamics (CFD) Simulation of Inclusion Motion under Interfacial Tension in a Flash Welding Process

open access: yesMetals, 2021
Non-metallic inclusions particles are detrimental to the mechanical properties of a material. It is very important to understand the motion behavior of inclusion particles in molten metal.
Md Irfanul Haque Siddiqui   +4 more
doaj   +1 more source

The Importance of Interfacial Tension in Emulsification: Connecting Scaling Relations Used in Large Scale Preparation with Microfluidic Measurement Methods

open access: yesChemEngineering, 2020
This paper starts with short descriptions of emulsion preparation methods used at large and smaller scales. We give scaling relations as they are generally used, and focus on the central role that interfacial tension plays in these relations.
Karin Schroën   +2 more
doaj   +1 more source

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