TY - JOUR
T1 - Modeling of Spatiotemporal Thermal Response to CO 2 Injection in Saline Formations
T2 - Interpretation for Monitoring
AU - Han, Weon Shik
AU - Kim, Kue Young
AU - Park, Eungyu
AU - McPherson, Brian J.
AU - Lee, Si Yong
AU - Park, Myong Ho
PY - 2012/7
Y1 - 2012/7
N2 - We evaluated the thermal processes with numerical simulation models that include processes of solid NaCl precipitation, buoyancy-driven multiphase SCCO 2 migration, and potential non-isothermal effects. Simulation results suggest that these processes-solid NaCl precipitation, buoyancy effects, JT cooling, water vaporization, and exothermic SCCO 2 reactions-are strongly coupled and dynamic. In addition, we performed sensitivity studies to determine how geologic (heat capacity, brine concentration, porosity, the magnitude and anisotropy of permeability, and capillary pressure) and operational (injection rate and injected SCCO 2 temperature) parameters may affect these induced thermal disturbances. Overall, a fundamental understanding of potential thermal processes investigated through this research will be beneficial in the collection and analysis of temperature signals collectively measured from monitoring wells.
AB - We evaluated the thermal processes with numerical simulation models that include processes of solid NaCl precipitation, buoyancy-driven multiphase SCCO 2 migration, and potential non-isothermal effects. Simulation results suggest that these processes-solid NaCl precipitation, buoyancy effects, JT cooling, water vaporization, and exothermic SCCO 2 reactions-are strongly coupled and dynamic. In addition, we performed sensitivity studies to determine how geologic (heat capacity, brine concentration, porosity, the magnitude and anisotropy of permeability, and capillary pressure) and operational (injection rate and injected SCCO 2 temperature) parameters may affect these induced thermal disturbances. Overall, a fundamental understanding of potential thermal processes investigated through this research will be beneficial in the collection and analysis of temperature signals collectively measured from monitoring wells.
KW - Geologic CO sequestration
KW - Joule-Thomson effect
KW - Multiphase transport
KW - Non-isothermal process
KW - Water vaporization
UR - http://www.scopus.com/inward/record.url?scp=84862780142&partnerID=8YFLogxK
U2 - 10.1007/s11242-012-9957-4
DO - 10.1007/s11242-012-9957-4
M3 - Article
AN - SCOPUS:84862780142
SN - 0169-3913
VL - 93
SP - 381
EP - 399
JO - Transport in Porous Media
JF - Transport in Porous Media
IS - 3
ER -