EXTERNAL SLEEVE CEMENTER
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United States of America Patent
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Issued Date -
May 4, 2023
app pub date -
Nov 1, 2021
filing date -
Nov 1, 2021
priority date (Note) -
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Abstract
A stage cementing tool for use in a wellbore comprises a mandrel having a plurality of circumferentially spaced first longitudinal slots and a plurality of circumferentially spaced second longitudinal slots. An opening sleeve is disposed in the mandrel in a first position and movable relative thereto. A setting sleeve disposed about the mandrel is connected to the opening sleeve and movable therewith. A drive sleeve is disposed in the mandrel above the opening sleeve is connected to and movable with a closing sleeve disposed about the mandrel.
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