Casing Spools - UWS Employee Portal

Casing Spool, C-22-L, with lock-down screws to secure mandrel casing hanger

Casing Spool, C-22-BP, with 2 lock-down screws for wear bushing retention

Casing Spool, C-22, 9” BG bottom prep, studded side outlets

UWS C-22 and C-29 Casing Spools

The Casing Spool is a wellhead component that provides a means to support and seal an intermediate casing string. The upper section has a straight type bowl and a 45-degree load shoulder to support the production casing string. The lower section houses a secondary seal to isolate the two casing strings and provide a means to test the wellhead seals.

Functions:

Provides a sealing point over the intermediate casing.

Allows for pressure testing of the wellhead seals to isolate the casing strings.

Allows for support and testing of a BOP system while drilling out for the next casing string.

Provides a casing hanger load shoulder and bowl for hanging and sealing of the next casing string.

The load shoulder and bowl also accommodate BOP test plugs.

Provides two outlets for annular access and monitoring.

Provides a means for Wear Bushing installation and retention.

C-29 bowls available for extreme casing loads.

Both accept C-21 and C-21-P Casing Hangers for low weight situations.

Options:

Outlets

Threaded 2” LP (LPO)

Threaded EUE 8rd

Side Studded Outlets (SSO) with internal VR prep

Extended Flanged Outlets (EFO) with internal VR prep

Bottom profile – BG (blank), accepts a wide variety of secondary seals

O-ring bottom, made to specific casing sizes

P-Seal bottom, made to specific casing sizes and must be energized by plastic packing

FS bottom (high pressure) made to specific casing size

Lock-down Pins

ET style pins eliminate exposed lock-down pin threads – Full set of pins to secure mandrel casing or tubing hangers (suffix “L”)

2 BP pins (bowl protector) to secure wear bushings while drilling (suffix “BP”)

UWS C-22 and C-29 Casing Spools

Functions:

Options:

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