Perforation cleaning tool
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United States of America Patent
Stats
-
Aug 4, 1992
Grant Date -
N/A
app pub date -
Jun 17, 1991
filing date -
Jun 17, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In accordance with an illustrative embodiment of the present invention, a well perforation cleaning tool includes a fluidic oscillator that creates pressure changes which induce cyclical stresses in the damaged skins of the perforations and causes the skins to disintegrate in order to improve the productivity of the well. Cylindrical filter tubes having a plurality of sets of slots are adjustably mounted at the upper and lower ends of the tool to provide resistances which confine the pressure changes to the immediate vicinity of the perforated interval.
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Cited Art Landscape
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