Chemical actuation of downhole tools
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United States of America Patent
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Feb 26, 2002
Grant Date -
N/A
app pub date -
May 5, 1999
filing date -
May 5, 1998
priority date (Note) -
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Abstract
Downhole tools and systems can be actuated chemically by placing a chemical sensor downhole and introducing a chemical slug into fluids being pumped downhole. When the slug reaches the sensor a reaction in the sensor may be employed to trigger an event (e.g., actuation) or may cause a count to increase by one on its way to a full count and actuation of a tool or system downhole.
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