C-22/C-29 Casing Heads

The C-22 / C-29 Casing Heads have a straight bore bowl with 45° landing shoulder design which avoids damage to sealing areas by drilling tools and prevents test plug and bowl protector wedging problems when pressure is applied. C-22 / C-29 Casing Heads are normally furnished with threaded outlets and studded outlets are available upon request. Bottom connections can be furnished threaded or slip-on for welding. C-29 Casing Heads are based on the same reliable design as the C-22 with exception that the bowl is longer, C-22 which permits the acceptance of the C-29 casing hanger with larger load capacity for deeper drilling.

Product Information
Versatile straight-bore design, uses a 45° landing shoulder
Accepts a wide variety of slip and mandrel casing hangers
C-22-BP/C-29-BP has a additional lock screws for Bowl protection.
C-22-L/C-29-L allows use of lock screws to retain hanger
3 different types of outlets: Line pipe, Flanged (Studded) Padded and Extended flanged outlets.
Multiple bottom connections, such as: Slip-on weld Slip-on weld with O-ring, Threaded and Sure Lock.

Size: 9" ~ 20-3/4" 

Working Medium：Oil、Gas、Mud、Gas containing H2S and CO2

Working Temperature: -46℃～121℃

Working Pressure: 2000 ~ 5000psi 

Material Level: AA/DD, BB/EE, CC/FF，HH

PR: 1 ~ 2 

PSL: 1 ~ 3