WE Report

Lessons Learned

Lesson Learned





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Report No.

176

Discipline/Origin

Drilling
No origin

Well

Serin
35/12-7

Date created

2019/02/05
2497 days ago

Project Phase

Operational
Project Phase

LL Type/Classification

Planning
Negative

Transocean Arctic


What happened in Surface section:
5 MT WOB proved insufficient, no drilling progress in hard formation. Was allowed to increase to 10 MT, progress followed.

What Was Planned

Drill 36″ section with max allowable WOB of 5 MT stated in HSG

What Was Learned

The 36″ bit was still sharp when pulled, suggesting the bit can handle a higher max WOB.

What Actions Are Required

Decrease WOB limitation in HSG/DOP, discuss with BHA provider.

EDITOR


CLOSE LL (testing)





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