The Open Petroleum Engineering Journal


ISSN: 1874-8341 ― Volume 12, 2019

Experimental Investigation of Polyvinylpyrrolidone for Application as a Demulsifier for Water-in-Oil Emulsion

Mysara Eissa Mohyaldinn, Logeswuran Rammudo, Muhammad Ayoub*
Petroleum Engineering Department, Universiti Teknologi Petronas, Bandar Seri Iskandar, Perak, Malaysia



Emulsification of produced immiscible mixed liquid of oil and water is a problem frequently recognized in surface production facilities in oil fields. The formed emulsions are required to be demulsified to avoid the negative consequences on piping and processing equipment. Nowadays, chemical demulsification is a preferable method to avoid or retard emulsification during the process of oil treatment.

Materials and Methods:

In the present study, Polyvinylpyrrolidone, poly-[1-(2-oxo-1-pyrrolidinyl)-ethylene] has been experimentally investigated as a chemical demulsifier for water-in-oil emulsion formulated by mixing a crude oil with synthesized oilfield produced water. Oilfield brines were synthesized by dissolving NaCl in deionized water to obtain salinity similar to the oilfield produced water. The sample of water-oil emulsion was prepared by agitation process at the condition of controlled rpm speed, ambient temperature and concentration of emulsifying agent. Stability of the emulsion was investigated using Turbiscan MA 2000 instrument.


The efficiency of the demulsification was screened using Bottle Test. It has been found that Polyvinylpyrrolidone, poly-[1-(2-oxo-1-pyrrolidinyl)-ethylene] accelerates the separation of the emulsion as compared to blank ones (with no addition of PVP). A maximum demulsification performance of the PVP was observed at an optimum concentration of 60 ppm.

Keywords: Chemical demulsification, Demulsifier, Emulsion, Oil fields, PVP, Water-oil mixture.

Article Information

Identifiers and Pagination:

Year: 2017
Volume: 10
First Page: 263
Last Page: 275
Publisher Id: TOPEJ-10-263
DOI: 10.2174/1874834101710010263

Article History:

Received Date: 06/06/2017
Revision Received Date: 08/10/2017
Acceptance Date: 15/11/2017
Electronic publication date: 30/11/2017
Collection year: 2017

© 2017 Mohyaldinn et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Petroleum Engineering Department, Universiti Teknologi Petronas, Bandar Seri Iskandar, Perak, 32610, Malaysia; Tel: 0060-104260280; E-mail:

Track Your Manuscript:


"I have to express my sincere appreciation for your hard and professional work. Thank you very much!"

Si Zhang
Institute for Strength and Vibration of Mechanical Structures,
Yangtze University, Jingzhou,
Hubei Province,

"My experiences in publishing a paper with Bentham Open is good. I must say that the speed of publication in The Open Petroleum Engineering Journal is very fast. It takes only two month for the pioneer reviewing process. The delay was caused by me. And what’s more, the publisher’s office is quite helpful. I guess they are dealing with thousands emails every week, but they process my request in a very short period of time."

Xin Ma
School of Science, Southwest Petroleum University, Chengdu, China

Browse Contents

Webmaster Contact:
Copyright © 2023 Bentham Open