Small drill-hole, gas mini-permeameter probe

Patent · Tue Jan 01 04:00:00 EST 2002

OSTI ID:875188

Molz, III, Fred J.; Murdoch, Lawrence C. ^[1]; Dinwiddie, Cynthia L. ^[2]; Castle, James W. ^[1]

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1. Clemson, SC
2. Central, SC

The distal end of a basic tube element including a stopper device with an expandable plug is positioned in a pre-drilled hole in a rock face. Rotating a force control wheel threaded on the tube element exerts force on a sleeve that in turn causes the plug component of the stopper means to expand and seal the distal end of the tube in the hole. Gas under known pressure is introduced through the tube element. A thin capillary tube positioned in the tube element connects the distal end of the tube element to means to detect and display pressure changes and data that allow the permeability of the rock to be determined.

• Research Organization: Clemson Univ., SC (United States)
• Sponsoring Organization: USDOE
• Assignee: Clemson University (Clemson, SC)
• Patent Number(s): H002052
• Application Number: 09/827701
• OSTI ID: 875188
• Country of Publication: United States
• Language: English

Related Subjects

/73/702/
allow
basic
capillary
capillary tube
causes
changes
component
connects
control
data
detect
determined
device
display
distal
drill-hole
element
exerts
expand
expandable
force
force control
gas
hole
including
introduced
means
mini-permeameter
permeability
plug
positioned
pre-drilled
pressure
probe
rock
rotating
seal
sleeve
statutory invention registration
stopper
threaded
tube
wheel