AAPI 6A/Casing Head//Slip bottom connect Casing Head /Thread & Weld bottom connect casing head

Casing Head The casing head is a kind of part connecting casings and wellheads. It is used as supporting the weight of technical casing and production casing, sealing the annular space between the casings, and installing BOP stacks. It provides transition joint for the tubing head, Christmas tree and other wellheads. It can also supply cement, monitor& control well’s sinking, and inject balance liquids etc by the two side outlets on the casing head housing. The casing head