WE Report

Lessons Learned

Lessons Learned865


Operator Rig Discipline / Origin Project Phase Well Section Date What Happened

Faroe
283 – Faroe

Transocean Arctic Drilling Operational 30/6-30
Rungne
P&A 01/10/2019 Used smaller “Sea Owl” for subsea observation while cutting surface casing strings. This allowed . . .


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Faroe
271 – Faroe

Transocean Arctic Drilling Operational 30/6-30
Rungne
Intermediate section 27/09/2019 Observed stick-slip while drilling through sand intervals and after a limestone stringer.


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Faroe
272 – Faroe

Transocean Arctic Drilling Operational 30/6-30
Rungne
Intermediate section 27/09/2019 Axebalde bit with v-shaped cutters drilled through most limestone stringers without any reduction in . . .


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Faroe
157 – Faroe

Deepsea Bergen Drilling Operational 31/7-2 S
Brasse Appraisal
P&A 28/09/2017 Drilled 36″ hole with 36″ bit at 21 m/hr on bottom ROP without problems maintaining verticality.


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