Launching tool for releasing cement plugs downhole

A wiper plug release tool uses a first pump down plug that lands in the tool to pressurize an internal chamber to slide a sleeve that undermines a set of dogs to allow the lower wiper plug to be decoupled from support. The shifting of this sleeve cams a second set of dogs into an internal passage in...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Smith, Jr, Sidney K, Parmer, Jr, Donald G
Format: Patent
Sprache:eng
Online-Zugang:Volltext bestellen
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