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Casing head is a 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 a 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 by the two side outlets on the casing head housing. The casing head manufactured by our company is a standard structure, the casing hanger produced fits well with the casing housing and the casing hanger of different sizes are available according to the casing procedure and the change of well head conditions. The standard casing head's top connection is API 6B or API 6BX flange.
The options of the casing head as follows:
The bottom connection of the casing head is either API round box thread or API buttress box thread; it can also be slipping type connection.
It can be provided with weld supporting base plate.
Side outlets could be piping line thread or studded, studded side outlet is machined with female thread for connecting R1 1/2” reversing valve.
item | component | qty | material | remark |
1 | lock screw | 12 | 4130 | |
2 | Packing nut | 12 | 5140 | |
3 | packing washer | 24 | 410 | |
4 | packing washer | 60 | PTFE | |
5 | slip type hanger | 1 | ||
6 | casing head body | 1 | 4130 | |
item | component | qty | material | remark |
1 | slip type hanger | 1 | ||
2 | lock screw assy | 12 | ||
3 | BT Seal Ring | 1 | NBR | |
4 | casing spool | 1 | 4130 | |
5 | grease fitting | 4 | ||
item | component | qty | material | remark |
1 | Socket Head Screw | 16 | ||
2 | upper lock ring | 1 | 4140 | |
3 | seal ring | 1 | NBR | |
4 | lower lock ring | 1 | 4140 | |
5 | position circle | 1 | 4140 | |
6 | slip body | 1 | 4130 |