The oil and water separation from surfactant produced water by using a flotation column

Ku Esyra Hani Ku Ishak, Mohammed Abdalla Ayoub

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The objective of this paper is to study the effect of amphoteric surfactant at different operating conditions concerning the oil–water separation from Dulang Oil field by using a laboratory-scale flotation column. A model has been developed to optimize the flotation process by using response surface method (RSM). The produced water containing surfactant was created by mixing the Dulang crude oil with the initial concentration of 1000 ppm, brines at 14000 ppm concentration, and MFOMAX amphoteric surfactant ranging from 0 to 500 ppm. A total of 32 experiments were conducted, and the effect of gas flowrate, MFOMAX concentration, and duration of flotation on the efficiency of oil removal from the flotation units has been analyzed. The experimental data results were then statistically analyzed, and the experiments were conducted for verification. The experimental results were found in fair agreement with the model’s predicted value, suggesting that the model could define the relationship between parameters. With the presence of MFOMAX, the optimal combination of parameters was at 4 L/min gas flowrate at the duration of 9 min with the efficiency of 87.3%. Confirmatory experiments were conducted at the optimum parameters to verify the model. The experimental value of 82.8% (STD 1.60) was obtained which indicated a good agreement with the predicted results.

Original languageEnglish
Title of host publicationProceedings of the International Field Exploration and Development Conference, 2018
EditorsJia’en Lin
Number of pages11
ISBN (Print)9789811371264
Publication statusPublished - 2020
Externally publishedYes
Event8th International Field Exploration and Development Conference, IFEDC 2018 - Xi'an, China
Duration: Sept 18 2018Sept 20 2018

Publication series

NameSpringer Series in Geomechanics and Geoengineering
ISSN (Print)1866-8755
ISSN (Electronic)1866-8763


Conference8th International Field Exploration and Development Conference, IFEDC 2018


  • Flotation unit
  • Oil–water separation
  • Produced water treatment
  • Surfactant produced water

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Mechanics of Materials


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