Emulsion Stability of Heavy Oil with Surfactants and Nanoparticles

The recovered crude oil is often in form of an emulsion and the recovery is cut off when water to oil ratio exceeds a certain amount. The emulsions vary from water-in-oil to oil-in-water and the step that follows is to coalesce droplets to get two continuous liquids. This is often made difficult bec...

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Main Authors: Zainab Abdulmohsein, Baojun Bai, Parthasakha Neogi
Format: Article
Language:English
Published: Smart Science & Technology LLC 2020-12-01
Series:Improved Oil and Gas Recovery
Online Access:https://www.smartscitech.com/index.php/IOGR/article/view/1177
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author Zainab Abdulmohsein
Baojun Bai
Parthasakha Neogi
author_facet Zainab Abdulmohsein
Baojun Bai
Parthasakha Neogi
author_sort Zainab Abdulmohsein
collection DOAJ
description The recovered crude oil is often in form of an emulsion and the recovery is cut off when water to oil ratio exceeds a certain amount. The emulsions vary from water-in-oil to oil-in-water and the step that follows is to coalesce droplets to get two continuous liquids. This is often made difficult because crude contains naturally occurring surfactants, or the oil recovered is by enhanced oil recovery techniques which have additives that also stabilize the droplets. We have considered below a heavy oil (viscosity 650-750 mPa.s) to which has been added one of the three surfactants: a nonionic surfactant or a cationic surfactant or an anionic surfactant. In addition, the mix can have alumina or silica nanoparticles or none. Most of the results have straightforward interpretations. Cationic surfactants appear to give rise to a secondary haze. There is no apparent effect due to nanoparticles. If the system contains nonionic surfactant then it can be destabilized by raising the temperature, except for one notable case. There are also cases of precipitation of nanoparticles.
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spelling doaj.art-22215d4d4a3a4347b732ef66a7b043642022-12-21T19:44:16ZengSmart Science & Technology LLCImproved Oil and Gas Recovery2688-82462020-12-01410.14800/IOGR.1177Emulsion Stability of Heavy Oil with Surfactants and NanoparticlesZainab Abdulmohsein0Baojun Bai1Parthasakha Neogi2 Missouri University of Science and Technology, Rolla, USA Missouri University of Science and Technology, Rolla, USA Missouri University of Science and Technology, Rolla, USAThe recovered crude oil is often in form of an emulsion and the recovery is cut off when water to oil ratio exceeds a certain amount. The emulsions vary from water-in-oil to oil-in-water and the step that follows is to coalesce droplets to get two continuous liquids. This is often made difficult because crude contains naturally occurring surfactants, or the oil recovered is by enhanced oil recovery techniques which have additives that also stabilize the droplets. We have considered below a heavy oil (viscosity 650-750 mPa.s) to which has been added one of the three surfactants: a nonionic surfactant or a cationic surfactant or an anionic surfactant. In addition, the mix can have alumina or silica nanoparticles or none. Most of the results have straightforward interpretations. Cationic surfactants appear to give rise to a secondary haze. There is no apparent effect due to nanoparticles. If the system contains nonionic surfactant then it can be destabilized by raising the temperature, except for one notable case. There are also cases of precipitation of nanoparticles.https://www.smartscitech.com/index.php/IOGR/article/view/1177
spellingShingle Zainab Abdulmohsein
Baojun Bai
Parthasakha Neogi
Emulsion Stability of Heavy Oil with Surfactants and Nanoparticles
Improved Oil and Gas Recovery
title Emulsion Stability of Heavy Oil with Surfactants and Nanoparticles
title_full Emulsion Stability of Heavy Oil with Surfactants and Nanoparticles
title_fullStr Emulsion Stability of Heavy Oil with Surfactants and Nanoparticles
title_full_unstemmed Emulsion Stability of Heavy Oil with Surfactants and Nanoparticles
title_short Emulsion Stability of Heavy Oil with Surfactants and Nanoparticles
title_sort emulsion stability of heavy oil with surfactants and nanoparticles
url https://www.smartscitech.com/index.php/IOGR/article/view/1177
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