Sealing a bore or open annulus
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United States of America Patent
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Dec 29, 2020
Grant Date -
May 5, 2016
app pub date -
Jun 9, 2014
filing date -
Jun 17, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Disclosed is a method for use in restricting or sealing a bore. A tubular is expanded in the bore to cause the tubular to split and be extended towards a wall of the bore. A straddle is located within the tubular so as to extend across the region of the tubular which has been split, and expanded to seal the split in the tubular. Also disclosed is apparatus comprising one or more expansion tools and a straddle, for use in sealing or restricting a bore. The apparatus may be used in conjunction with a tubular as disclosed herein, having one or more weak zones adapted to preferentially split under the action of an expansion tool.
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