Sealed branch wellbore transition joint

摘要

A sealed branch wellbore transition joint. In a described embodiment, a completion system for a well having a branch wellbore extending outwardly from a window in a parent wellbore includes a tubular string having a portion positioned within the window, and a sealing material on the tubular string portion. The sealing material swells in the well to thereby form a seal between the tubular string portion and the window.