Coiled tubing triple-sealed penetrator and method
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United States of America Patent
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Apr 19, 2016
Grant Date -
Oct 24, 2013
app pub date -
Dec 12, 2011
filing date -
Dec 10, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A triple-sealed ESP connection provides a first seal at the upper end of a coiled tubing to limit the migration of vapors from the interior of the coiled tubing into the annulus at a wellhead and a second seal to prevent migration of the vapors from the annulus of the wellhead to the exterior surface of the wellhead. This triple-sealed arrangement can be accomplished by providing a threaded connection on an upper end of the coiled tubing to which is attached the sealable shroud for the electrical conductor splice which sealably connects with the wellhead thereby providing a sealed upper end to the coiled tubing and a second seal on the shroud and a seal at the wellhead. The second seal in both cases is the seal that can be either a metal-to-metal or other type of compressive seal arrangement or a sealed tubing arrangement.
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