MECHANICAL EXPANSION SYSTEM

Methods and apparatus enable expanding a tubular in a wellbore. The method and apparatus include running a bottom hole assembly (BHA) into a wellbore. The BHA is anchored to the wellbore and a portion of the BHA is released from the anchor. An expansion member is then pulled by a work string through...

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Bibliographic Details
Main Author GIROUX, RICHARD LEE
Format Patent
LanguageEnglish
French
Published 17.04.2012
Subjects
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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Summary:Methods and apparatus enable expanding a tubular in a wellbore. The method and apparatus include running a bottom hole assembly (BHA) into a wellbore. The BHA is anchored to the wellbore and a portion of the BHA is released from the anchor. An expansion member is then pulled by a work string through the tubular thereby engaging the tubular with the wellbore. The work string is reconnected to the anchor and used to release the anchor. The BHA is then removed from the wellbore. Des méthodes et un appareillage permettent l'expansion d'un dispositif tubulaire dans un puits de forage. Ces méthodes et appareillages comprennent la marche d'un ensemble de fond de trou (BHA) dans un puits de forage. Le BHA est ancré au puits de forage et une de ses parties est libérée du dispositif d'ancrage. Un élément d'expansion est ensuite tiré par une rame de travail au moyen du dispositif tubulaire, ce qui accouple le dispositif tubulaire avec le puits de forage. La rame de travail est raccordée de nouveau au dispositif d'ancrage et utilisée pour le libérer. Le BHA est ensuite retiré du puits de forage.
Bibliography:Application Number: CA20082645803