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Numerical studies of fluid leakage from a geologic disposal reservoir for CO 2 show self‐limiting feedback between fluid flow and heat transfer
Author(s) -
Pruess Karsten
Publication year - 2005
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2005gl023250
Subject(s) - supercritical fluid , heat transfer , leakage (economics) , fluid dynamics , mechanics , isothermal process , multiphase flow , petroleum engineering , joule–thomson effect , boiling , thermodynamics , materials science , geology , physics , economics , macroeconomics
Leakage of CO 2 from a hypothetical geologic storage reservoir along an idealized fault zone has been simulated, including transitions between supercritical, liquid, and gaseous CO 2 . We find strong non‐isothermal effects due to boiling and Joule‐Thomson cooling of expanding CO 2 . Leakage fluxes are limited by limitations in conductive heat transfer to the fault zone. The interplay between multiphase flow and heat transfer effects produces non‐monotonic leakage behavior.