Part I. Surfactant Fundamentals: 1. Surfactants and their solutions: basic principles Laurier L. Schramm and D. Gerrard Marangoni; 2. Characterization of demulsifiers R. J. Mikula and V. A. Munoz; 3. Emulsions and foams in the petroleum industry Laurier L. Schramm and Susan M. Kutay; Part II. Surfactants in Porous Media: 4. Surfactant adsorption in porous media Laura L. Wesson and Jeffrey H. Harwell; 5. Surfactant induced wettability alteration in porous media Eugene A. Spinler and Bernard A. Baldwin; 6. Surfactant flooding in enhanced oil recovery Tor Austad and Jess Miltner; 7. Scale-up evaluations and simulations of mobility control foams for improved oil recovery Fred Wassmuth, Laurier L. Schramm, Karin Mannhardt, and Laurie Hodgins; Part III. Oilwell, Near-Well, and Surface Operations: 8. The use of surfactants in lightweight drilling fluids Todd R. Thomas and Ted M. Wilkes; 10. Surfactants in Athabasca oil slurry conditioning, flotation recovery, and tailings processes Laurier L. Schramm, Elaine N. Stasiuk, and Mike MacKinnon; Part IV. Environmental, Health, and Safety Applications: 11. Surfactant enhanced aquifer remediation Varadarajan Dwarakanath and Gary A. Pope; 12. Use of surfactants for environmental applications Merv Fingas; 13. Toxicity and persistence of surfactants used in the petroleum industry Larry N. Britton; Part V. Glossary and Indexes: 14. Glossary of surfactant terminology Laurier L. Schramm; Author and affiliation indexes.