Details
| Original language | English |
|---|---|
| Publication status | Published - 2018 |
| Event | 52nd U.S. Rock Mechanics/Geomechanics Symposium - Seattle, United States Duration: 17 Jun 2018 → 20 Jun 2018 |
Conference
| Conference | 52nd U.S. Rock Mechanics/Geomechanics Symposium |
|---|---|
| Country/Territory | United States |
| City | Seattle |
| Period | 17 Jun 2018 → 20 Jun 2018 |
Abstract
In recent years, the geomechanical demand for the design of new gas storage caverns has changed significantly. Because relatively large temperature differences due to the operation of the caverns may occur, thermodynamic calculations of the gas temperature within a geomechanical design load case cannot be neglected. The dimensioning of a gas storage cavern is based on thermodynamic aspects, taking into account the location-specific thermal system parameters such as the primary rock mass temperature, the temperature distribution after the leaching phase in the vicinity of the cavern, the ratio of the volume to the surface, the heat transfer coefficient, the thermal conductivity and the specific heat capacity. Some of these parameters must be assumed from the experience with other cavern projects before the solution phase is finished. After a few years of operation these parameters should be checked in a back-analysis on the basis of the operation data. This paper deals with the leaching phase of a cavern created by solution mining and the resulting temperature and stress conditions in the rock mass surrounding the cavern and investigates the need for the accuracy of the engineering idealizations of this phase for the back-analysis.
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Geophysics
- Earth and Planetary Sciences(all)
- Geochemistry and Petrology
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
2018. Paper presented at 52nd U.S. Rock Mechanics/Geomechanics Symposium, Seattle, United States.
Research output: Contribution to conference › Paper › Research › peer review
}
TY - CONF
T1 - Thermo-mechanical influences of the leaching phase of a gas storage cavern on the back-analysis of the cavern operation
AU - Leuger, Bastian
AU - Zapf, Dirk
AU - Staudtmeister, Kurt
N1 - Funding information: The paper deals with the calculation of the construction phase of a real gas storage cavern in northern Germany and points out the influence to be taken into account with regard to the stress and temperature field in the surrounding rock mass. Presented are the first results of the research project called RiSa supported by the German Federal Ministry for Economic Affairs and Energy.
PY - 2018
Y1 - 2018
N2 - In recent years, the geomechanical demand for the design of new gas storage caverns has changed significantly. Because relatively large temperature differences due to the operation of the caverns may occur, thermodynamic calculations of the gas temperature within a geomechanical design load case cannot be neglected. The dimensioning of a gas storage cavern is based on thermodynamic aspects, taking into account the location-specific thermal system parameters such as the primary rock mass temperature, the temperature distribution after the leaching phase in the vicinity of the cavern, the ratio of the volume to the surface, the heat transfer coefficient, the thermal conductivity and the specific heat capacity. Some of these parameters must be assumed from the experience with other cavern projects before the solution phase is finished. After a few years of operation these parameters should be checked in a back-analysis on the basis of the operation data. This paper deals with the leaching phase of a cavern created by solution mining and the resulting temperature and stress conditions in the rock mass surrounding the cavern and investigates the need for the accuracy of the engineering idealizations of this phase for the back-analysis.
AB - In recent years, the geomechanical demand for the design of new gas storage caverns has changed significantly. Because relatively large temperature differences due to the operation of the caverns may occur, thermodynamic calculations of the gas temperature within a geomechanical design load case cannot be neglected. The dimensioning of a gas storage cavern is based on thermodynamic aspects, taking into account the location-specific thermal system parameters such as the primary rock mass temperature, the temperature distribution after the leaching phase in the vicinity of the cavern, the ratio of the volume to the surface, the heat transfer coefficient, the thermal conductivity and the specific heat capacity. Some of these parameters must be assumed from the experience with other cavern projects before the solution phase is finished. After a few years of operation these parameters should be checked in a back-analysis on the basis of the operation data. This paper deals with the leaching phase of a cavern created by solution mining and the resulting temperature and stress conditions in the rock mass surrounding the cavern and investigates the need for the accuracy of the engineering idealizations of this phase for the back-analysis.
UR - http://www.scopus.com/inward/record.url?scp=85053467817&partnerID=8YFLogxK
M3 - Paper
T2 - 52nd U.S. Rock Mechanics/Geomechanics Symposium
Y2 - 17 June 2018 through 20 June 2018
ER -