Brine Migration in Heated Salt: Lessons Learned from Field Experiments
Abstract
We summarize several interesting brine migration related phenomena hinted at in field experiments from field testing related to salt radioactive waste repositories in Germany and the US. Past heater tests in salt have shown 1) thermal-hydrological-mechanical coupling is quite strong during both heating and cooling; 2) chemical composition of brine evolves during heating, and comprises a mix of several water sources; and 3) acid gas (HCl) generation has been observed during past heater tests and may have multiple mechanisms for formation. We present a heated brine migration test design, formulated with these complexities in mind. Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia LLC, a wholly owned subsidiary of Honeywell International Inc. for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-NA0003525.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2017
- Bibcode:
- 2017AGUFMMR13A0311K
- Keywords:
-
- 1816 Estimation and forecasting;
- HYDROLOGY;
- 1832 Groundwater transport;
- HYDROLOGY;
- 3999 General or miscellaneous;
- MINERAL PHYSICS;
- 3610 Geochemical modeling;
- MINERALOGY AND PETROLOGY