Portable Probe Permeameter provides a precise method for rapidly determining gas
permeability in field locations and at the lab.
Data is determined by the unsteady state method, pressure decay is measured as a
function of time allowing for the computation of Kgas. The system is provided in
a rugged suitcase housing for the probe permeameter with the PC and probe in a second
module which is designed to be carried to the field in, and operated from, a standard
backpack. The instrument includes a gas reservoir that allows measurements to be
made independent from a gas source.
A 24-volt power pack supplies electricity for
the instrument. Field measurements are made in the field by pressing the probe tip
against the rock surface. Initial flow pressure of 35 psi, declines as gas flows
into the rock surface, the decay versus time is recorded and the permeability calculated
from the pressure decay curve.
Data can be measured from outcrops, whole cores and slabbed cores as well as other
types of samples. Data are available in tabular and digital form.
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