WE Report

Lessons Learned

Lesson Learned





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Report No.

216

Discipline/Origin

Drilling
No origin

Well

Kallåsen
35/12-6 S

Date created

2019/02/07
2495 days ago

Project Phase

Operational
Project Phase

LL Type/Classification

Operational
Negative

Transocean Arctic


What happened in Reservoir section:
After POOH with 8 1/2″ BHA (prior to coring), decided to not run same due to wear on teeth coating. Inspection of 8 1/2″ BU PDC bit showed it was a re-run with no bit history supplied.

What Was Planned

Run B/U 8 1/2″ bit after coring due to wear on primary

What Was Learned

When generating bit inventory one should photograph all new bits to assist with grading when pulled.

What Actions Are Required

DE offshore to keep bit inventory updated, and take pictures when necessary.

EDITOR


CLOSE LL (testing)





New Lesson Learned

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