Abstract: 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.

Abstract: Apparatus and methods for anchoring and orienting equipment in a well provide a latch assembly having a substantially unobstructed bore, thereby increasing access and flow therethrough while the latch assembly is operatively engaged with an anchoring and orienting profile in the well. The latch assembly may include a generally tubular collet structure having multiple collets integrally formed thereon.

Abstract: Specially designed apparatus is utilized to provide convenient isolation of a wellbore junction from pressure and corrosion during an acid fracturing stimulation process performed in a main or branch wellbore portion downhole from the junction. The apparatus has an outer tubular portion which may be installed, in a single trip into the main wellbore, in a straddling and sealing relationship with the junction, and an inner tubular structure sealingly and removably received within the outer tubular structure. Fracturing acid may be pumped directly down the main wellbore, and then to the formation to be stimulated, via the interior of the outer tubular structure, after the removal of the inner tubular structure subsequent to its use in facilitating a downhole pressure test of a lower end seal portion of the outer tubular structure.

Abstract: Apparatus and methods for anchoring and orienting equipment in a well provide enhanced economy, convenience and utility. In a described embodiment, a latch assembly has a substantially unobstructed bore, thereby increasing access and flow therethrough while the latch assembly is operatively engaged with an anchoring and orienting profile in the well. The latch assembly may include a generally tubular collet structure having multiple collets integrally formed thereon.

Abstract: Specially designed apparatus is utilized to provide convenient isolation of a wellbore junction from pressure and corrosion during an acid fracturing stimulation process performed in a main or branch wellbore portion downhole from the junction. The apparatus has an outer tubular portion which may be installed, in a single trip into the main wellbore, in a straddling and sealing relationship with the junction, and an inner tubular structure sealingly and removably received within the outer tubular structure. Fracturing acid may be pumped directly down the main wellbore, and then to the formation to be stimulated, via the interior of the outer tubular structure, after the removal of the inner tubular structure subsequent to its use in facilitating a downhole pressure test of a lower end seal portion of the outer tubular structure.