DescriptionThe C22 Casing Head is the lowermost head in a wellhead system. It is connected to the surface casing by one of several possible methods. The upper connection of the casing head is usually flanged and connects to the next wellhead or BOP's when the BOP's during the drilling process.
Structural Features● Provides an attachment and sealing point to the surface casing.
● Allows for pressure testing of the weld when a SOW bottom is used.
● Allows for support and testing of a BOP system while drilling out for the next casing string.
● Provides a straight bowl with a high capacity 45° load shoulder.
● The load shoulder and bowl also accommodate BOP test plugs.
● Provides a means for Wear Bushing installation and retention.
● Can be supported by the conductor pipe via an optional base plate.
● C-29 bowls available for extreme casing loads.
● Either bowl will accept a C-21 Casing Hanger for low weight situations.
Technical ParameterBase Plates are custom made and pre-installed depending on customer needs.
● Bottom Connections available in the following profiles:
Slip-on Weld (SOW) with internal o-ring (outside only weld)
Slip-on Weld (SOW) no o-ring (outside and inside weld)
Threaded female or male casing thread
Slip-Lock (weld-less) Locks to casing with slips energized via studs
● Lock-down Pins
Full set of pins to secure mandrel casing hangers (suffix "L")
BP pins (bowl protector) to secure wear bushings while drilling (suffix "BP")
● Outlets
Female Threaded 2" LP (LPO) or EUE 8Rd
Side studded outlets (SSO) with internal VR prep
Extended flanged outlets (EFO) with internal VR prep
