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Static and dynamic studies of foam and foam-oil interactions

Anne Kari Vikingstad

Dissertation for the degree philosophiae doctor (PhD)
University of Bergen

2006

Anne Kari Vikingstad
Centre for Integrated Petroleum Research
Department of Chemistry
University of Bergen
Allégaten 41
N-5007 Bergen
Norway

Bergen, Norway
September 2006

Preface

This thesis submitted for the degree Philosophiae Doctor at the University of Bergen, consists of five papers and two research reports along with an introduction to the work.
The papers are based on work performed at the Centre for Integrated Petroleum
Research at the University of Bergen in the period 2003-2006. Simulation work performed during a research period at University of Texas at Austin in spring 2005 is summarized in a research report.

The papers include different approaches to the topic of foam and foam-oil interactions.
Paper 1-3 address the topic through studies of static foam experiments, whereas Paper
4 includes results from dynamic core flooding experiments. The static and dynamic foam properties of a fluorinated surfactant and alpha olefin sulfonate are compared.
Paper 5 and 6 include studies of gravity segregation of foam in small scale model reservoirs, while Paper 7 is a report from a foam potential study from a field in the
North Sea.

Acknowledgements

I wish to express my gratitude to my supervisors Dr.scient Morten Aarra, Professor
Arne Skauge, and Professor Harald Høiland. Thank you for shearing you knowledge with me, for the many discussions during the years and for teaching me a lot of experimental procedures in the lab.

I would like to acknowledge Dr. William Rossen for including me in his research group during my stay at the University of Texas at Austin. I would also like to thank
Dr. Quoc Nguyen for many good discussions. The rest of the science group in Austin is also thanked.

My fellow students and colleagues at the Centre for