1. Department
of Energy Resources Engineering, Stanford University, Stanford, California 94305-2220, United States
2. Department
of Earth System Science, Stanford University, Stanford, California 94305-2220, United States
3. Department
of Earth Sciences, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
4. Dow Corning Corporation, Midland, Michigan 48686, United States
5. Chemical
and Biological Engineering Department, Colorado School of Mines, Golden, Colorado 80401, United States