WE Report

Lessons Learned

Lesson Learned





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Report No.

180

Discipline/Origin

Drilling
No origin

Well

Serin
35/12-7

Date created

2019/02/05
2496 days ago

Project Phase

Operational
Project Phase

LL Type/Classification

Operational
N/A

Transocean Arctic


What happened in Surface section:
Took time POOH from TD. Pulled straight to 15 MT overpull, worked same. Thereafter lubricated with 3-400 lpm and 10 RPM. When unable to get further OOH, ran back in 2 stands and circulated BU. Done on 3 occasions.

What Was Planned

POOH

What Was Learned

Managed to POOH with this method without backreaming. Bit and stabs were balled up with clay when POOH above 30″ WH. Decided to NOT run wiper trip,, since backreaming was avoided (and less chance of cavings and fill on bottom).

What Actions Are Required

N/A

EDITOR


CLOSE LL (testing)





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