Underground instrumentation emplacement system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 5, 1993
Issued Date -
N/A
app pub date -
Jul 26, 1991
filing date -
Aug 30, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system for placing instrumentation within a hole enables a wide variety of instruments to be placed in the hole with enhanced measurement resolution and minimum risk of becoming lodged in the hole by partial collapse of the hole wall. A flexible tubular member is pressurized and averted from a canister into the hole, turning inside out as it extends into the hole. The application of pressure urges the tubular member against the hole wall in the manner of a hole liner or packer. A wide variety of instruments can be attached to the membrane and urged against the hole wall for measurement purposes. Typical measurements include temperature, pore fluid extraction and injection, in situ sensing with fiber optics, pore fluid pressure, and the like.
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