TUBING HANGER ANNULUS ACCESS PERFORATED STEM DESIGN

摘要

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.

主权项

1. A wellhead assembly, comprising:
a tubing hanger adapted to be connected to a tubing string and landed in a wellhead, defining a tubing annulus between the tubing string and casing in a well; a tubing annulus upper access bore extending downward from an upper end of the tubing hanger; 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 communicate with the tubing annulus; a communication cavity connecting the upper and lower access bores within the tubing hanger; a remotely actuated valve in the communication cavity for selectively opening and closing communication between the lower access bore and the upper access bore.