A transient-flow syringe air permeameter
Name
Brown-2013-Transient-flow syringe.pdf
Size
1.13 MB
Format
Adobe PDF
Checksum (MD5)
32039a0085c8de33ffb96ba0750659ea
Author(s)
Brown, Stephen
Smith, Martin
Date Issued
July 2013
Journal
Geophysics
Publisher
Society of Exploration Geophysicists
Citation
Brown, Stephen, and Martin Smith. “A transient-flow syringe air permeameter.” GEOPHYSICS 78, no. 5 (September 2013): D307-D313. © 2013 Society of Exploration Geophysicists
Version
Final published version
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
Terms of Use
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.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1190/geo2012-0534.1
