Explosive sever seal mechanism
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United States of America Patent
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Dec 20, 2016
Grant Date -
Sep 3, 2015
app pub date -
Feb 28, 2014
filing date -
Feb 28, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A technique facilitates severing and sealing of a tubing, such as a tubing string located in a wellbore. The tubing is combined with a mechanism constructed to sever and seal the tubing. The mechanism comprises an internal explosive charge and an external explosive charge mounted inside and outside the tubing, respectively. The internal explosive charge is of sufficient size to sever the tubing upon detonation. Additionally, the external explosive charge is sized and oriented to collapse and seal at least one of the severed ends of the tubing once those severed ends are formed via detonation of the internal explosive charge.
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