The slip type elevator is an indispensable tool in holding and hoisting drilling pipes, casing and tubing in the oil drilling and well tripping operation. It’s especially suitable for the hoisting of integrated tubing sub, integral joint casing and electric submersible pump column. The products shall be designed and manufactured according to the requirements in API Spec 8C Specification for Drilling and Production Hoisting Equipment.
An emergency casing packoff assembly that is adapted to be installed in a wellhead through a blowout preventer includes an upper packoff body, a lower packoff bodyreleasably coupled to the upper packoff body, and a metal seal ring that is adapted to create a metal to metal seal between the packoff assembly and a casing supported in a wellhead when a pressure thrust load is imposed on the packoff assembly. The casing packoff assembly further includes a lock ring energizing mandrel threadably coupled to the upper packoff body , wherein at least a portion of the lock ring energizing mandrel is adapted to be threadably rotated relative to the upper packoff body so as to lock the packoff assembly into the wellhead while the imposed pressure thrust load is maintained on the packoff assembly.