A transient-flow syringe air permeameter
In response to the need to better describe spatial variations in permeability, we designed and built a new portable field air permeameter for use on rocks in outcrop and core. In this instrument, a chamber containing a small volume of air in contact with the rock is suddenly increased in volume crea...
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| Format: | Artikel |
| Sprache: | en_US |
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Society of Exploration Geophysicists
2014
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| Online Zugang: | http://hdl.handle.net/1721.1/85013 |
| _version_ | 1826196280250990592 |
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| author | Brown, Stephen Smith, Martin |
| author2 | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences |
| author_facet | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Brown, Stephen Smith, Martin |
| author_sort | Brown, Stephen |
| collection | MIT |
| description | In response to the need to better describe spatial variations in permeability, we designed and built a new portable field air permeameter for use on rocks in outcrop and core. In this instrument, a chamber containing a small volume of air in contact with the rock is suddenly increased in volume creating a vacuum, causing air to flow from the rock into the chamber. The instantaneous chamber volume and the air pressure within it were monitored. We evaluated a theory to allow interpretation of these data for the rock permeability. The theory required knowledge of some difficult-to-determine geometric constants. This difficulty was circumvented in practice through a calibration procedure. We described the theory for the design and construction of this instrument and reviewed some successful uses in field-scale studies of rock permeability heterogeneity. |
| first_indexed | 2024-09-23T10:24:24Z |
| format | Article |
| id | mit-1721.1/85013 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:24:24Z |
| publishDate | 2014 |
| publisher | Society of Exploration Geophysicists |
| record_format | dspace |
| spelling | mit-1721.1/850132022-09-30T20:53:39Z A transient-flow syringe air permeameter Brown, Stephen Smith, Martin Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Brown, Stephen In response to the need to better describe spatial variations in permeability, we designed and built a new portable field air permeameter for use on rocks in outcrop and core. In this instrument, a chamber containing a small volume of air in contact with the rock is suddenly increased in volume creating a vacuum, causing air to flow from the rock into the chamber. The instantaneous chamber volume and the air pressure within it were monitored. We evaluated a theory to allow interpretation of these data for the rock permeability. The theory required knowledge of some difficult-to-determine geometric constants. This difficulty was circumvented in practice through a calibration procedure. We described the theory for the design and construction of this instrument and reviewed some successful uses in field-scale studies of rock permeability heterogeneity. 2014-02-19T19:14:34Z 2014-02-19T19:14:34Z 2013-07 2013-04 Article http://purl.org/eprint/type/JournalArticle 0016-8033 1942-2156 http://hdl.handle.net/1721.1/85013 Brown, Stephen, and Martin Smith. “A transient-flow syringe air permeameter.” GEOPHYSICS 78, no. 5 (September 2013): D307-D313. © 2013 Society of Exploration Geophysicists en_US http://dx.doi.org/10.1190/geo2012-0534.1 Geophysics Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Society of Exploration Geophysicists Society of Exploration Geophysicists |
| spellingShingle | Brown, Stephen Smith, Martin A transient-flow syringe air permeameter |
| title | A transient-flow syringe air permeameter |
| title_full | A transient-flow syringe air permeameter |
| title_fullStr | A transient-flow syringe air permeameter |
| title_full_unstemmed | A transient-flow syringe air permeameter |
| title_short | A transient-flow syringe air permeameter |
| title_sort | transient flow syringe air permeameter |
| url | http://hdl.handle.net/1721.1/85013 |
| work_keys_str_mv | AT brownstephen atransientflowsyringeairpermeameter AT smithmartin atransientflowsyringeairpermeameter AT brownstephen transientflowsyringeairpermeameter AT smithmartin transientflowsyringeairpermeameter |