Inverse modeling of a multistep outflow experiment fordetermining hysteretic hydraulic properties
Conference
·
OSTI ID:6406
- LBNL Library
A new, closed-form hysteretic model of the capillary pressure-saturation and relative permeability-saturation relationship has been implemented into ITOUGH2. The hysteretic capillary pressure function is based on the van Genuchten model, with a modified version of the dependent domain model of Mualem to describe the scanning curves. Hysteresis in the relative permeability relations is considered to be mainly a result of nonwetting fluid entrap- ment. The hysteresis model was used in combination with inverse modeling techniques to examine the potential of a simple drainage- imbibition experiment to determine hysteretic hydraulic properties.
- Research Organization:
- Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 6406
- Report Number(s):
- LBNL--41749; ON: DE00006406
- Country of Publication:
- United States
- Language:
- English
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