WE Report

Lessons Learned

Lessons Learned865


Operator Rig Discipline / Origin Project Phase Well Section Date What Happened

DNO
1227 – DNO

Borgland Dolphin Drilling
Experience Transfer Meeting
Operational A-1 H, A-2 H, A-3 HT2
Oselvar
Production section 05/05/2012 DONG handover documentation: After dropping the ball to activate the underreamer the string was . . .

As it looks like ball hangs up in string when not rotating, rotation should be initiated shortly . . .
Karina Helle / Morten Laget


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DNO
319 – DNO

Island Innovator Drilling Operational 6507/7-16 S
Canela
Production section Deliberately added 2 m pup after log interpretation showed potentially weak limestone stringer close . . .


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