Wear-resistant, variable diameter expansion tool and expansion methods
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United States of America Patent
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Apr 20, 2004
Grant Date -
Apr 24, 2003
app pub date -
Oct 23, 2001
filing date -
Oct 23, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The inventions provide apparatus and methods for radially expanding a tubular deployed in a subterranean well by moving an expansion tool axially through the well. An expansion tool apparatus may have wear faces attached to at least a portion of the outer periphery of a mandrel for contacting the interior surface of the pipe, tube, or screen during expansion. According to another aspect of the invention, an expansion tool has a controlled egress seal between the outer surface of the tool and the inside surface of the expandable tubular. According to another aspect of the invention, an automatically variable diameter expansion tool is provided having a variable diameter cone, which expands, and contracts based on input from one or more sensors. According to another aspect of the invention, an apparatus and method for expanding a length of screen assembly in a subterranean wellbore is provided.
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