A portable air-minipermeameter for rapid in situ field measurements
Journal Article
·
· Ground Water; (United States)
- New Mexico Inst. of Mining and Technology, Socorro, NM (United States)
Measurements of air-permeability in outcrops provide a means of obtaining numerous spatially distributed measurements for statistical analysis and subsequent parameterization of ground-water flow and transport modeling. The air-minipermeameters previously used for such studies generally consist of a compressed air source, rotameters, and diaphragm gauges. They present a lightweight syringe-based air-minipermeameter (LSAMP) design that is significantly more portable than previous instruments. The prototype model is contained in a 12.7 x 15.2 x 23 centimeter electrical box and weighs approximately 2 kilograms. The prototype LSAMP has a sampling range of 0.5 to 200 darcys. Individual measurements in this range require less than one minute. Permeability measured with the LSAMP closely correspond to permeability measured with a traditional minipermeameter and those measured on cores. Measurement error caused by soil moisture is less than 5 percent for volumetric water contents less than 5 percent. An analysis of variance on 38 triplicate measurements indicates that the variability associated with measurement error is much less than the range of measured values. Repeated permeability measurements under field conditions on two standard cores indicate that while the measurement error is greater under field conditions, the prototype device field performance is consistent with laboratory calibration results.
- DOE Contract Number:
- FG04-89ER60843
- OSTI ID:
- 7117469
- Journal Information:
- Ground Water; (United States), Journal Name: Ground Water; (United States) Vol. 32:2; ISSN GRWAAP; ISSN 0017-467X
- Country of Publication:
- United States
- Language:
- English
Similar Records
A theoretical and experimental analysis of minipermeameter response including gas slippage and high velocity flow effects
Mathematical and geological approaches to minimizing the data requirements for statistical analysis of hydraulic conductivity. Technical completion report
The improved prediction of permeability variation in selected Rotligendes aeolian reservoirs from the southern North Sea basin
Journal Article
·
Thu Dec 31 23:00:00 EST 1987
· In Situ; (United States)
·
OSTI ID:6756333
Mathematical and geological approaches to minimizing the data requirements for statistical analysis of hydraulic conductivity. Technical completion report
Technical Report
·
Mon Nov 30 23:00:00 EST 1992
·
OSTI ID:434347
The improved prediction of permeability variation in selected Rotligendes aeolian reservoirs from the southern North Sea basin
Conference
·
Thu Feb 28 23:00:00 EST 1991
· AAPG Bulletin (American Association of Petroleum Geologists); (United States)
·
OSTI ID:7171508