| Title | THERMAL STABILITY OF THE VAPOR-PHASE TRACER R-134A |
|---|---|
| Authors | Michael C. Adams and Phaedra M. Kilborn |
| Year | 2000 |
| Conference | Stanford Geothermal Workshop |
| Keywords | tracer tests, The Geysers |
| Abstract | The vapor-phase tracer R-134a has been used in sev-eral tracer tests in vapor-dominated and two-phase geothermal systems. This paper describes laboratory studies designed to produce kinetic parameters for the decay of R-134a in the system water-steam-nitrogen-tracer are described. The kinetic parameters calcu-lated from the experimental data were used to ex-trapolate to conditions in The Geysers steam reser-voir. The results indicate that R-134a is sufficiently stable to be used in tracer tests conducted in the nor-mal Geysers reservoir, but that a correction for ther-mal decay should be applied if R-134a is used in the high-temperature reservoir. |