ApplicationNo. 06/535470 filed on 09/26/1983
US Classes:166/382, Providing support for well part (e.g., hanger or anchor)166/217, Expansible means translated by wedge or cam285/123.4Split ring type suspension means
ExaminersPrimary: Novosad, Stephen J.
Assistant: Neuder, William P.
Attorney, Agent or Firm
International ClassesE21B 33/043 (20060101)
E21B 33/03 (20060101)
E21B 33/00 (20060101)
AbstractA subsea well casing suspension system whereby each of a plurality of concentric casing strings and its hanger is directly and totally supported on the wellhead housing, independently of all the other strings and their hangers, by a plurality of load ring slips that are components of a packoff assembly for an earlier installed casing string. When the packoff assembly is pressure tested following its installation, the load ring slips rise off the assembly and expand into their mating wellhead housing groove wherein they function to transmit the total hang load of the next casing string and hanger directly to that housing.