Emulsifying composition for increase of oil recovery efficiency of high viscous oils

2021 ◽  
pp. 22-28
Author(s):  
R.G. Ismailov ◽  
◽  
E.F. Veliev ◽  
◽  
◽  
...  
Keyword(s):  
Surface Tension ◽  
Oil Recovery ◽  
Emulsion Stability ◽  
Surface Active Agent ◽  
Active Agent ◽  
Heavy Oils ◽  
Viscous Oil ◽  
Surface Active ◽  
Oil Water ◽  
The Stability

Nowadays, one of the more perspective technologies for oil recovery increase in the fields with heavy oils is formation of intrastratal emulsion. The paper presents the research on the increase of oil recovery in the fields with heavy oil via injection of combined composition based on the viscosity minimizer and surface active agent. Obtained composition allows significantly increase the stability of intrastratal emulsion, dramatically reducing the values of surface tension in the border of oil/water. The analysis of synergetic efficiency for suggested composition on the emulsion stability, surface tension and rheological properties has been carried out. More efficient concentrations of composition components have been specified. Obtained results have been justified with experiments on the replacement of high viscous oil from Galmaz field on the sand packed tubes of reservoir.

scholarly journals Effect of an Alcohol-Based Caries Detector on the Surface Tension of Sodium Hypochlorite Preparations

2015 ◽  
Vol 26 (1) ◽  
pp. 66-68 ◽  
Author(s):  
Giampiero Rossi-Fedele ◽  
Andrea R. Guastalli
Keyword(s):  
Surface Tension ◽  
Sodium Hypochlorite ◽  
Surface Active Agent ◽  
Active Agent ◽  
Pendant Drop ◽  
Root Canal Irrigants ◽  
Significant Difference ◽  
Surface Active ◽  
Pendant Drop Method

The purpose of this study was to evaluate the effect of an alcohol-based caries detector (Kurakay) on the surface tension of a conventional sodium hypochlorite (NaOCl) preparation, and a product containing a surface-active agent (Chlor-XTRA). The surface tensions of the following solutions were tested: NaOCl, a mixture of NaOCl and Kurakay 9:1 w/w, Chlor-XTRA, a mixture of Chlor-XTRA and Kurakay 9:1 w/w. Ten measurements per test solution were made at 20 C, using an optical method called the "Pendant drop method", with a commercially available apparatus. The addition of Kurakay reduced the surface tension for NaOCl (p<0.05) whilst no significant difference was detected for Chlor-XTRA (p>0.05). Statistically significant differences between the NaOCl and Chlor-XTRA groups were found (p<0.05). The addition of an alcohol-based caries detector resulted in a reduction of the original surface tension values for NaOCl only. Taking into account the fact that mixtures of NaOCl and Kurakay have been used to assess the penetration of root canal irrigants in vitro, the related changes in surface tension are a possible source of bias.

A reciprocal theorem for Marangoni propulsion

2014 ◽  
Vol 741 ◽  
Author(s):  
Hassan Masoud ◽  
Howard A. Stone
Keyword(s):  
Surface Tension ◽  
Surface Active Agent ◽  
Active Agent ◽  
Reynolds Numbers ◽  
The Self ◽  
Reciprocal Theorem ◽  
Surface Tension Gradient ◽  
Spheroidal Particle ◽  
Surface Active ◽  
Translational Speed

AbstractWe study the Marangoni propulsion of a spheroidal particle located at a liquid–gas interface. The particle asymmetrically releases an insoluble surface-active agent and so creates and maintains a surface tension gradient leading to the self-propulsion. Assuming that the surface tension has a linear dependence on the concentration of the released agent, we derive closed-form expressions for the translational speed of the particle in the limit of small capillary, Péclet and Reynolds numbers. Our derivations are based on the Lorentz reciprocal theorem, which eliminates the need to develop the detailed flow field.

scholarly journals Perlukah Kita Menggunakan Obat Kumur?

2017 ◽  
Vol 2 (4) ◽  
pp. 14
Author(s):  
Nia Yuniarsih
Keyword(s):  
Surface Tension ◽  
Surface Active Agent ◽  
Active Agent ◽  
Wetting Agent ◽  
Surface Active

Obat kumur dapat digunakan untuk dua tujuan. Mereka bersifat terapeutik dan kosmetik. Bersifat terapeutik pada pembedahan mulut atau mencuci, untuk mengurangi plak, radang gusi, karies gigi, dan stomatitis.Surfaktan digunakan karena dapat membantu pelarut rasa dan menghilangkan kotoran dengan memberikan tindakan berbusa. Agen pembasah (wetting agent) didefinisikan sebagai senyawa yang mempunyai aktifitas permukaan (surface active agent) sehingga dapat menurunkan tegangan permukaan (surface tension) antara udara – cairan dan cairan – cairan yang terdapat dalam suatu sistem.Jadi obat kumur merupakan pembersih tambahan dan bukan pengganti. Pada akhirnya, obat kumur hanya berfungsi untuk "penyegar" mulut.Keyword : obat kumur, radang, aktivitas permukaan, mulut

Enhanced stability and optoelectronic properties of MAPbI3 films by a cationic surface-active agent for perovskite solar cells

2018 ◽  
Vol 6 (23) ◽  
pp. 10825-10834 ◽  
Author(s):  
He Zhao ◽  
Shirong Wang ◽  
Mengna Sun ◽  
Fei Zhang ◽  
Xianggao Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Surface Active Agent ◽  
Perovskite Solar Cells ◽  
Active Agent ◽  
Optoelectronic Properties ◽  
Hydrophobic Effects ◽  
Surface Active ◽  
The Stability ◽  
Enhanced Stability

Passivation and hydrophobic effects can significantly enhance the stability and optoelectronic properties of MAPbI3 films.

The Effect of Calcination Temperature on Dielectric Properties of ZnO and Al2O3 Nanoparticles at Radio Frequencies

2016 ◽  
Vol 708 ◽  
pp. 9-13 ◽  
Author(s):  
Hasnah Mohd Zaid ◽  
Muhammad Adil ◽  
Lee Kean Chuan
Keyword(s):  
Dielectric Properties ◽  
Calcination Temperature ◽  
Oil Recovery ◽  
Surface Active Agent ◽  
Active Agent ◽  
Dielectric Behavior ◽  
High Loss ◽  
Low Dielectric ◽  
Surface Active ◽  
Radio Frequencies

The dielectric properties of ZnO and Al2O3 are dependent upon various factors such as chemical composition, method of synthesis, grain size, particle size distribution and porosity. A low dielectric constant is often desirable for several applications, whilst for enhanced oil recovery application, high loss dielectrics is required rendering the particles as surface-active agent. In this study, the dependence of the dielectric properties on the calcination temperature of ZnO and Al2O3 nanoparticles is determined as a function of two applied radio frequencies of 18.82 MHz and 167.32 MHz. The experimental results indicate that the nanoparticles of different phases can significantly improve the densification and their dielectric properties. Detailed analysis of the results showed that rotational polarization is the major contributor to the enhanced dielectric behavior of the nanoparticles at the applied frequencies.

Surface Properties of Molten Bismuth-Bismuth Chloride in Contact with Uranium Dioxide

1961 ◽  
Vol 14 (3) ◽  
pp. 409 ◽  
Author(s):  
DH Bradhurst ◽  
AS Buchanan
Keyword(s):  
Surface Tension ◽  
Contact Angle ◽  
Surface Properties ◽  
Uranium Dioxide ◽  
Surface Active Agent ◽  
Active Agent ◽  
Effective Surface ◽  
Liquid Bismuth ◽  
Surface Active ◽  
Bismuth Chloride

The wetting of uranium dioxide by liquid bismuth has been investigated by means of measurements of surface tension of the liquid and contact angle of the liquid on the solid. Bismuth chloride in low concentration was found to be a very effective surface active agent in improving the wetting of the solid by the metal.

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