GE Surface Time-Saving Wellheads Brochure

GE Oil & Gas

Where risers or rig floor limitations drive you to welding on 

a conventional casing head, the SCH1 Casing Head is a 

cost-effective 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 flange can be attached 

to the casing head and the BOP will be made up with a 

traditional flange. Once the hold-down flange is installed, this 

head has the same profile 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.

 

• 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-off”

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 Profile

Landing Ring

 

• Field-proven DVC adapter provides safe BOP nipple-up 

and nipple-down in a few minutes

 

• Standard W2 bowl profile 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