WE Report

Lessons Learned

Lesson Learned





By: Karina Helle

Report No.

1226

Discipline/Origin

Drilling
Experience Transfer Meeting

Well

Oselvar
A-1 H, A-2 H, A-3 HT2

Date created

2012/05/06
4962 days ago

Project Phase

Operational
Project Phase

LL Type/Classification

Operational
N/A

Borgland Dolphin


What happened in Production section:
DONG handover documentation: The deactivation of the underreamer was not done on the bit trip due to the short distance drilled / need to re-run UR. Prior to trip out from TD the need to deactivate at the shoe was questioned by the DD.

External Actions

Do not spend time deactivating unless circulating at the shoe for another reason (conditioning mud). If UR is activated keep string stationary when pumping slug to avoid casing damage.

EDITOR


CLOSE LL (testing)





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