API 6A Standard Casing Head

API 6A Standard casing head

API 6A Standard casing head
1. Work pressure: 2000-20000psi
2. Work temp: -46-121
3. material class: AA-HH

The casing head is a kind of part of connecting casings and wellheads. It is used as supporting the weight of technical casing and oil string casing, sealing the annular space between the casings, The casing head provides atransition joint for the tubing head, Christmas tree and other wellheads, It can also supply cement, monitor and control wells sinking, inject balance liquids etc through the two side outlet on the casing head housing.
The casing head produced by our company is a standard structure, in which the casing hanger produced by our company is fitted, The casing hanger can be elected on size according to the casing procedure and the change of well head condition. On the upper of the casing heads sets all API 6B or API 6BX flange.

Casing hanger for casing head and casing spool has straight type seat bore and 45°cone of hanging shoulder, with fine loading ability.  
·if required, it can be designed in integral or split structure.  
·The connecting type of casing head and surface casing is weld, thread and slip type.  
·The connecting type of side outlet includes thread, bolted flange and flange
·Matched casing hanger structural type: slip, thread(mandrel);  
·In the bottom of casing head and casing spool sets casing secondary seal mechanism and sealing test port.

Structure for API 6A Standard casing head as belowings: