Patent ID: 6550537
Filing Date: 2003-04-22
Classification: E21B

Abstract:
A tension latching system for a hanger having an inner barrel and a housing assembly for an inner barrel, further comprising:(a) latching segment contained within the inner barrel, wherein said latching segment further comprises a profile with a first side for engaging the inner barrel with latching teeth and a second side abutting the housing of the inner barrel; (b) an adjustable inner barrel connecting to the latching segment, having an inner surface and an outer surface, and further comprising inner barrel teeth disposed on the outer surface and said latching teeth engaging said inner barrel teeth in an interlocking engagement; (c) at least one spring for energizing the latching segment against the adjustable inner barrel; (d) a locking mechanism comprising a pin and a locking spring to orient the latching segment in the housing assembly of the inner barrel; (e) a running tool having a tension adjusting feature which enables the inner barrel to be adjusted to tolerances within Â½ inch which further consists of a pack off assembly with pack off seals adapted to ratchet the latching segment until the correct tension is achieved on the adjustable inner barrel.