Projectable plug assembly for core barrel flow hole and installation method therefor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 16, 1993
Grant Date -
N/A
app pub date -
Feb 20, 1992
filing date -
Feb 20, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A plug assembly for plugging the flow hole of a core support barrel employs a pair of plug members which are initially collapsable to permit positioning between the core support barrel and the adjacent thermal shield. The plug assembly is activated to a projected plugged configuration by pneumatic or hydraulic pressure to provide a sealing engagement by a cooperative arrangement between circumferential locking barbs and a sealing lip.
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