Brochure

GE Oil & Gas
Where risers or rig oor limitations drive you to welding on
a conventional casing head, the SCH1 Casing Head is a
cost-eective alternative. Run with the surface casing string
through the riser and using normal cementing operations, the
SCH1 casing head is immediately available for BOP nipple-up
when the riser is removed. Eliminating the casing head weld:
• improves safety,
• saves valuable rig time, and
• facilitates multi-well drilling programs from a common
location by eliminating “hot” operations.
By installing the support ring below the SCH1, the surface
casing is supported by the conductor casing, eliminating the
wait-on-cement (WOC) time associated with conventional
equipment.
More time can be saved by removing the riser and attaching
the BOP stack to the casing head with the optional DVC speed
connector. The use of the DVC connector saves additional
nipple-up time during drilling. If the DVC speed connector is
not used, the threaded-on hold-down ange can be attached
to the casing head and the BOP will be made up with a
traditional ange. Once the hold-down ange is installed, this
head has the same prole as a conventional head, allowing
the use of standard components above it.
With the pre-installed pup joint (nipple), no WOC time, and the
use of the DVC speed connector, our customers can expect to
save in excess of 10 hours of valuable rig time, per well.
Features —
• No welding required to install riser on conductor
• No waiting on cement required when running surface
casing
• Installed through drilling riser as part of surface casing
string
• No welding required to install the casing head
• Allows normal cementing operations including “top-o”
Time-Saving Wellheads
Pressure Control SCH1 Casing Head
Top Flange
Size
Top Flange
Pressure (psi)
Surface
Casing
Production Casing
or Tubingless
Completion (TLC)
Minimum
Riser ID
9”
3,000
7-5/8” 2-7/8” thru 5”
13-5/8”
8-5/8” 2-7/8” thru 5-1/2”
5,000
7-5/8” 2-7/8” thru 5”
8-5/8” 2-7/8” thru 5-1/2”
11”
3,000
8-5/8” 2-7/8” thru 5-1/2”
15-3/8”
9-5/8” 2-7/8” thru 7”
5,000
8-5/8” 2-7/8” thru 5-1/2”
9-5/8” 2-7/8” thru 7”
295-2807
Hold-Down
Flange
Split Support Ring
Conductor
Surface Casing
Production Casing
DVC Connector Prole
Landing Ring
• Field-proven DVC adapter provides safe BOP nipple-up
and nipple-down in a few minutes
• Standard W2 bowl prole accepts entire family of W
casing hangers for a wide range of production casing
sizes
• Accepts all T and MTH2 tubing heads for 3,000, 5,000 or
10,000 psi working pressures
Availability —