WE Report

Lessons Learned

Lesson Learned





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Report No.

252

Discipline/Origin

Drilling
No origin

Well

Songesand
35/4-2

Date created

2020/06/16
1999 days ago

Project Phase

Operational
Project Phase

LL Type/Classification

Planning
Negative

Transocean Arctic


What happened in Top hole:
When cement was in place and 10 MT weight was slacked off conductor to set it on bottom, noticed the Hook load varied quite a bit from 60-70 MT, going up and down. Not good while waiting on cement to set up around the conductor. Lifted conductor off bottom, turned off active heave, set conductor on bottom again with passive heave compensator.

What Was Planned

Use active heave compensator to stab 30 in conductor into seabed.

What Was Learned

Remember to turn off active heave once stabbed conductor into seabed.

What Actions Are Required

Should include a reminder to turn off active heave compensator in DOPs in the future.

EDITOR


CLOSE LL (testing)





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