"sub de camisa deslizante e método e aparelho para o tratamento de fluido de furo do poço"

"sub de camisa deslizante e método e aparelho para o tratamento de fluido de furo do poço"

A method and apparatus for wellbore control include a downhole facing ball stop and sealing area that can stop and seal with an actuator ball migrating toward surface with wellbore returns or production. The downhole facing ball stop operates with the returning actuator ball to create a seal against...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DANIEL JON THEMIG, TERRANCE DEAN MAXWELL, DANIEL P. LUPIEN, CHRISTOPHER DENIS DESRANLEAU, KEVIN O. TRAHAN, FRANK DELUCIA
Format: Patent
Sprache:por
Schlagworte:
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:A method and apparatus for wellbore control include a downhole facing ball stop and sealing area that can stop and seal with an actuator ball migrating toward surface with wellbore returns or production. The downhole facing ball stop operates with the returning actuator ball to create a seal against any returns or production migrating toward surface such that well control is provided until the ball is removed from the sealing area or a bypass is opened around the seal.