EXPANDABLE OPEN-HOLE ANCHOR

The present invention generally relates to an apparatus and method for expanding an anchoring device in a borehole. In one aspect, an anchoring device is provided. The anchoring device includes an expandable tubular. The anchoring device further includes a plurality of bands disposed on an outer sur...

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Bibliographic Details
Main Authors KENDZIORA, LARRY A, GIROUX, RICHARD L, GANDIKOTA, VARADARAJU
Format Patent
LanguageEnglish
French
Published 01.11.2012
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Abstract The present invention generally relates to an apparatus and method for expanding an anchoring device in a borehole. In one aspect, an anchoring device is provided. The anchoring device includes an expandable tubular. The anchoring device further includes a plurality of bands disposed on an outer surface of the expandable tubular. Each band is attached to the tubular at a first connection point and a second connection point, wherein each band is configured to bow radially outward as the expandable tubular shortens in length in response to the expansion of the tubular. In a further aspect, a method of attaching an anchoring device in a borehole is provided. La présente invention porte de façon générale sur un appareil et un procédé pour mettre un dispositif d'ancrage en expansion dans un trou de sonde. Dans un aspect, l'invention porte sur un dispositif d'ancrage. Le dispositif d'ancrage comprend un élément tubulaire expansible. Le dispositif d'ancrage comprend en outre une pluralité de colliers placés sur une surface extérieure de l'élément tubulaire expansible. Chaque collier est attaché à l'élément tubulaire en un premier point de fixation et un second point de fixation, chaque collier étant conçu pour se bomber radialement vers l'extérieur lorsque l'élément tubulaire expansible se raccourcit en longueur en réponse à l'expansion de l'élément tubulaire. Dans un autre aspect, l'invention porte sur un procédé pour fixer un dispositif d'ancrage dans un trou de sonde.
AbstractList The present invention generally relates to an apparatus and method for expanding an anchoring device in a borehole. In one aspect, an anchoring device is provided. The anchoring device includes an expandable tubular. The anchoring device further includes a plurality of bands disposed on an outer surface of the expandable tubular. Each band is attached to the tubular at a first connection point and a second connection point, wherein each band is configured to bow radially outward as the expandable tubular shortens in length in response to the expansion of the tubular. In a further aspect, a method of attaching an anchoring device in a borehole is provided. La présente invention porte de façon générale sur un appareil et un procédé pour mettre un dispositif d'ancrage en expansion dans un trou de sonde. Dans un aspect, l'invention porte sur un dispositif d'ancrage. Le dispositif d'ancrage comprend un élément tubulaire expansible. Le dispositif d'ancrage comprend en outre une pluralité de colliers placés sur une surface extérieure de l'élément tubulaire expansible. Chaque collier est attaché à l'élément tubulaire en un premier point de fixation et un second point de fixation, chaque collier étant conçu pour se bomber radialement vers l'extérieur lorsque l'élément tubulaire expansible se raccourcit en longueur en réponse à l'expansion de l'élément tubulaire. Dans un autre aspect, l'invention porte sur un procédé pour fixer un dispositif d'ancrage dans un trou de sonde.
Author GANDIKOTA, VARADARAJU
KENDZIORA, LARRY A
GIROUX, RICHARD L
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DocumentTitleAlternate ANCRAGE EXPANSIBLE DE TROU EN DÉCOUVERT
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GIROUX, RICHARD L
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Snippet The present invention generally relates to an apparatus and method for expanding an anchoring device in a borehole. In one aspect, an anchoring device is...
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SourceType Open Access Repository
SubjectTerms 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
Title EXPANDABLE OPEN-HOLE ANCHOR
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