GE Surface Time-Saving Wellheads Brochure

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GE Oil & Gas
Time-Saving Wellheads
Pressure Control OSH Offshore Speedhead
 System
The OSH Offshore Speedhead™ System is specifically 
designed to be compatible with the drilling methods 
commonly used in the Gulf of Mexico. It has a two-stage 
starting head, combining the casing head and casing spool 
into a single housing. The diverter or BOP stack is made up 
to the starting head before drilling commences and is not 
removed until two strings of casing have been run.
This technique impacts both rig costs and safety. By landing 
two casing strings in one compact forged housing, the OSH 
system eliminates one complete BOP nipple-down/nipple-
up thereby saving significant rig time. By reducing handling 
of wellhead and BOP equipment and minimizing potential 
wellhead leak paths, the OSH system substantially improves 
safety.
When combined with the SH2 split speedhead system, this 
package can save from 24 to 40 hours of valuable rig time. 
Features —
 
• Improved safety
 
– Field-proven
 
– Weldless attachment option to drive pipe
 
– Run annular seals through BOP
 
– External seal testing/monitoring capability
 
• Time saving
 
– Reduces BOP/diverter handling
 
– Eliminates wait-on-cement time
 
– Uses simple emergency procedure
 
– Installs tubing spool with casing spool
 
• Flexible system
 
– Allows alternate casing programs
 
– Has pressure ratings up to 15,000 psi
 
– Accepts standard tubing hangers with continuous 
control lines
 
– Accepts standard casing hangers in the upper bowl and 
will connect to a conventional tubing head spool for 
extended casing program
 
– Accepts conventional casing spool/tubing spool
295-2667
OSH Wellhead
SH2 Wellhead
Conductor 
Pipe
Surface 
Casing
Intermediate 
Casing
Production 
Casing
Tubing
20” – 36”
16”
10-3/4”
7”
2-3/8”
2-7/8”
3-1/2”
20” – 36”
16”
10-3/4”
7-5/8”
2-3/8”
2-7/8”
3-1/2”
24” – 36”
18-5/8”
13-3/8”
9-5/8”
2-3/8”
2-7/8”
3-1/2”
4-1/2”
These are standard casing programs for the OSH. If others are desired, please contact 
GE Oil & Gas Pressure Control Engineering.
OSH Casing Programs —