WE Report

Lessons Learned

Lesson Learned





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Report No.

215

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:
Unplanned “soft break” made on Telescope tool when POOH to run core barrel. Driller and roughnecks misunderstood where break was to be made, not helped by fact that roughneck jaws are hidden from Driller when roughneck in use.

What Was Planned

POOH with Telescope to run core barrel

What Was Learned

Need closer supervision from SLB DD/LWD.

What Actions Are Required

SLB DD/LWD to stand outside red zone, but in line of sight of iron roughneck to be sure break is being made in correct place. –Z Include in DOPs.

EDITOR


CLOSE LL (testing)





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