Tubing hanger annulus access perforated stem design
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United States of America Patent
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Mar 20, 2018
Grant Date -
Apr 30, 2015
app pub date -
Oct 25, 2013
filing date -
Oct 25, 2013
priority date (Note) -
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Abstract
A wellhead assembly including a tubing hanger adapted to be connected to a tubing string and landed in a wellhead, and defining a tubing annulus between the tubing string and casing in a well. The wellhead assembly also includes a tubing annulus upper access bore extending downward from an upper end of the tubing hanger, and a tubing annulus lower access bore extending upward from a lower end of the tubing hanger and misaligned with the upper access bore, the lower access bore adapted to communicated with the tubing annulus. A communication cavity connects the upper and lower access bores within the tubing hanger. A remotely actuated valve is in the communication cavity for selectively opening and closing communication between the lower access bore and the upper access bore.
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