1. Nalco Energy Services, An Ecolab Company,
Sugar Land, Texas 77478, United States
2. Ion Cyclotron Resonance Program, National
High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310,
United States
3. Petroleum Recovery Research Center (PRRC)/New Mexico Tech, Socorro, New
Mexico 87801, United States
4. Department of Chemical
and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 2V4, Canada
5. Chevron Energy Technology Company, Houston, Texas 77042, United States