WE Report

Lessons Learned

Lesson Learned





By: Drilling Engineer

Report No.

2099

Discipline/Origin

Drilling
Own Experience

Well

Gomez
2/5-15

Date created

2021/08/29
1560 days ago

Project Phase

Operational
Project Phase

LL Type/Classification

Equipment
Negative

Borgland Dolphin


What happened in Production section:
The NORM instrument was found finally found on the drillfloor, however in an unmarked black pelicase, and delivered to the drilling engineer.
The drilling engineer, after seeing the Well Connection logo on a small bag inside the pelicase and radioactive tape, made the mistake in assuming that the entire pelicase belonged to WellConnection.

The black pelicase was in fact Schlumberger’s toolbox for handling radioactive sources, which caused some down time when we performed a bit trip on Gomez Exploration well where we were unable to remove the source from the BHA without that toolbox.
Duty from CHC, Well Expertise and the Heliport was mobilized in order to find the pelicase and send it back out again with a helicopter.

What Was Planned

Returning the NORM (radioactive) measuring instrument to WellConnection (last usage was on Oselvar), which was long overdue to be delivered back to the supplier.

What Was Learned

When there are no owners of a piece of equipment onboard the rig (Well Connection had loaned the NORM to Dolphin, but not people) then the responsible person, in this case the drilling engineer, must make sure (e.g., by the use of photos) that what is sent to town actually belongs to that specific supplier.

Example of equipment we’ve had offshore but without personnel: Cold Cutter from Norse, Jars from Global Rental, and NORM instrument from Well Connection

What Actions Are Required

When suppliers are asking us to send home overdue equipment, it would be helpful if they also show us a photo and state exactly what that equipment is.
It is not given that the same people that received the equipment are the same people as the ones that sends it home.
When in doubt, the drilling engineers should always take their time in verifying before sending. In this case it was much more expensive to send the wrong box home that it would have been to wait 3 more days (drilling engineer wanted to send it home on Fridays helicopter to avoid further rental cost)

What Was Done

The pelicase was located on the heliport. Luckily the recipients of the box were unable to pick it up on Friday when it was sent home, which means it was still on the heliport, which simplified the process of getting it out again.

Good help from WE Duty, CHC Duty and Heliport personnel ensured that the same pelicase was sent out again.

EDITOR


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