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Change Wellhead from Surface into Subsea System
03 August 2017
Hallo Gents,

Do you have any experience in changing Surface Wellhead System into Subsea Wellhead System? Can we do that consider that well wellhead hanger and packoff is installed in surface? Do you have any real experience?

Background : Currently we have problem with platform stability and one of the challenge given is to change the Surface Wellhead that already installed into Subsea system.

Thank You.
1 answer(s)
AndyPua
Drilling Consultant
PT Drilling Services
Total Posts: 60
Join Date: 15/09/14
Benny, 

Does the current Wellhead system has tie-back facilities ? If they have, then the system can be converted to Subsea system by modification. 

If not, then I can't think of anyway to hang the casing.

Best is to talk to the Wellhead supplier for options. They probably have some new invention for conversion. 


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