Expansion system for expandable tubulars and method of expanding thereof
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United States of America Patent
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Jan 24, 2012
Grant Date -
Jan 20, 2011
app pub date -
Jul 15, 2009
filing date -
Jul 15, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
Methods and apparatus for radially expanding and plastically deforming an expandable tubular member using a lower expansion cone and an upper expandable cone. The apparatus includes an expandable tubular, a support member releasably secured to the expandable tubular, and an extendable section below where the support member is releasably anchored. An upper expandable cone is attached to the extendable section and in a retracted state and an anchor is disposed below the upper expandable cone. The anchor is releasable from below the upper expandable cone. A lower expansion cone is disposed below the anchor. An expansion sleeve is disposed in the lower end of the expandable tubular. The lower expansion cone is configured to expand the expansion sleeve radially outward to an outer diameter greater than the inside diameter of the expandable tubular when axially displaced downward by the extendable section.
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