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Petroleum engineering, Enhanced oil recovery, Colloidal gas aphrons

Samuel,Shivana R

Supervisor and department: Trivedi, Japan Civil and Environmental Engineering Kuru, Ergun Civil and Environmental Engineering

Examining committee member and department: Kuru, Ergun Civil and Environmental Engineering Choi, Phillip Chemical and Materials Engineering Dehghanpour, Hassan Civil and Environmental Engineering Trivedi, Japan Civil and Environmental Engineering

Department: Department of Civil and Environmental Engineering

Specialization: Petroleum Engineering

Date accepted: 2012-01-30T09:17:01Z

Graduation date: 2012-06

Degree: Master of Science

Degree level: Master's

Abstract: Aqueous colloidal gas aphrons CGAs have previously been used as drilling fluids because of their pore blocking ability which significantly reduces formation damage. The aim of this study is to generate aqueous colloidal gas aphrons, to examine its stability and rheology as well as to investigate its suitability as an enhanced oil recovery fluid. Different polymers and surfactants were tested to create the most stable aphrons. To determine the optimum formulation; aphron bubble size over time, bubble size distribution over time and fluid rheology were examined. To determine the CGA fluid suitability for enhanced oil recovery applications, experiments were conducted using a visual cell and radial cell filled with porous media. Flooding experiments were performed using the CGA fluid as well as other comparable fluids. The pressure drop, total recovery data and breakthrough time were measured for both cells while time lapse images were taken for the visual cell.

Language: English

DOI: doi:10.7939-R3G689

Rights: Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.





Autor: Samuel,Shivana R

Fuente: https://era.library.ualberta.ca/


Introducción



UNIVERSITY OF ALBERTA A Laboratory Study of Aqueous Colloidal Gas Aphrons for Enhanced Oil Recovery Applications by Shivana Rhea Samuel A thesis submitted to the Faculty of Graduate Studies and Research in partial fulfillment of the requirements for the degree of Master of Science in Petroleum Engineering Department of Civil and Environmental Engineering ©Shivana Rhea Samuel Spring 2012 Edmonton, Alberta Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided; neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author’s prior written permission. Examining Committee Dr.
Hassan Dehghanpour, Chair and Examiner, Civil and Environmental Engineering Dr.
Ergun Kuru, Supervisor, Civil and Environmental Engineering Dr.
Japan Trivedi, Co-Supervisor, Civil and Environmental Engineering Dr.
Phillip Choi, External Examiner, Chemical and Materials Engineering ABSTRACT Aqueous colloidal gas aphrons (CGAs) have previously been used as drilling fluids because of their pore blocking ability which significantly reduces formation damage.
The aim of this study is to generate aqueous colloidal gas aphrons, to examine its stability and rheology as well as to investigate its suitability as an enhanced oil recovery fluid. Different polymers and surfactants were tested to create the most stable aphrons. To determine the optimum formulation; (aphron) bubble size over time, bubble size distribution over time and fluid rheology were examined. To ...





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