دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a flanged fitting that supports the tubing string, seals off pressure between the casing and the outside of the tubing, and provides a connection that supports the Christmas tree.

n: A wellhead component that supports the tubing hanger and provides a means of attaching the Christmas tree to the wellhead.

a flanged spool containing the tubing bowl where the tubing hanger will set and seal.