Electronic rupture discs for interventionaless barrier plug
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United States of America Patent
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Sep 13, 2016
Grant Date -
Jun 26, 2014
app pub date -
Aug 31, 2012
filing date -
Aug 31, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
Methods and apparatus are presented for removing a degradable barrier plug positioned in a downhole axial passageway. The degradable plug is initially isolated from fluid by at least one solid, non-degradable cover. A first electronic rupture disc assembly is actuated to open a passageway to the degradable plug. A second electronic rupture disc assembly is actuated to allow a fluid, such as water from a supply chamber, to flow into contact with the plug. The plug is substantially degraded, although the cover remains. A third electronic rupture disc assembly is actuated to bend and then cover the remaining solid cover, thereby opening the axial passageway and protecting later-introduced tools.
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