Numerical modeling of thermal conductive heating in fractured bedrock
Copyright © 2010 The Author(s). Journal compilation © 2010 National Ground Water Association.
| Veröffentlicht in: | Ground water. - 1979. - 48(2010), 6 vom: 01. Nov., Seite 836-43 |
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| Weitere Verfasser: | , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2010
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| Zugriff auf das übergeordnete Werk: | Ground water |
| Schlagworte: | Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. |
| Zusammenfassung: | Copyright © 2010 The Author(s). Journal compilation © 2010 National Ground Water Association. Numerical modeling was employed to study the performance of thermal conductive heating (TCH) in fractured shale under a variety of hydrogeological conditions. Model results show that groundwater flow in fractures does not significantly affect the minimum treatment zone temperature, except near the beginning of heating or when groundwater influx is high. However, fracture and rock matrix properties can significantly influence the time necessary to remove all liquid water (i.e., reach superheated steam conditions) in the treatment area. Low matrix permeability, high matrix porosity, and wide fracture spacing can contribute to boiling point elevation in the rock matrix. Consequently, knowledge of these properties is important for the estimation of treatment times. Because of the variability in boiling point throughout a fractured rock treatment zone and the absence of a well-defined constant temperature boiling plateau in the rock matrix, it may be difficult to monitor the progress of thermal treatment using temperature measurements alone |
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| Beschreibung: | Date Completed 23.05.2011 Date Revised 20.11.2014 published: Print Citation Status MEDLINE |
| ISSN: | 1745-6584 |
| DOI: | 10.1111/j.1745-6584.2010.00722.x |