Acknowledgments

Chevron Oil Field Research Co. made this project possible by releasing the data and results. I am also indebted to Ray Ergas, Don Winterstein, Mark Meadows, and Clint Frasier for interesting discussions and for the opportunity of having a very exciting summer job. Finally I thanks Dave Nichols for his great team spirit and for his advice and discussions in the Lab, as well as at the beach. Thanks to David Lumley for his careful proofreading and suggestions.