WE Report

Lessons Learned

Lesson Learned





By: Sturla Jensen

Report No.

1417

Discipline/Origin

Subsea
Own Experience

Well

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

Date created

2021/04/10
1702 days ago

Project Phase

Operational
Project Phase

LL Type/Classification

Equipment
Negative

Borgland Dolphin


What happened in P&A:
Heavily bending on Lubricator Umbilical approx 1,5 m from termination head for. Caused by Clamp had slid downwards on the pipe while pooh.

What Was Planned

POOH SSTT landing string. Including Lubricator valve assembly.

What Was Learned

Bad weather. The UMB clamp could have snagged in the slip joint.
The UMB clamp should always be installed just above coupling.

What Actions Are Required

Pressure tested the hydraulic lines on the UMB. OK test.

What Was Done

POOH SSTT landing string. Including Lubricator valve assembly.

EDITOR


CLOSE LL (testing)





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