WE Report

Lessons Learned

Lessons Learned865


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

Faroe
279 – Faroe

Transocean Arctic Drilling Operational 30/6-30
Rungne
P&A 01/10/2019 Had to remove top stabbing guide on IRN to be able to M/U MPT (45 cm handling pup below). Reason for . . .


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Faroe
280 – Faroe

Transocean Arctic Drilling Operational 30/6-30
Rungne
P&A 01/10/2019 Weatherford Whirl Tool, part of Wellbore Cleanout Tools used for brushing riser and jetting BOP. OD . . .


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Faroe
281 – Faroe

Transocean Arctic Drilling Operational 30/6-30
Rungne
P&A 01/10/2019 Bent two singles 5 1/2″ HWDP while tagging top of surfacec cement plug after pulling BOP.


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Faroe
282 – Faroe

Transocean Arctic Drilling Operational 30/6-30
Rungne
P&A 01/10/2019 Thread on tension mandrel was damaged in town (used for connecting Weatherford MOST tool to rotary . . .


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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
284 – Faroe

Transocean Arctic Drilling Operational 30/6-30
Rungne
P&A 01/10/2019 The 18 3/4″ HP housing lock ring released after cutting the 20″ casing with 20 mt overpull. . . .


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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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Faroe
169 – Faroe

Deepsea Bergen Drilling Operational 31/7-2 S
Brasse Appraisal
P&A 28/09/2017 In DOP for pulling 9 5/8″ seal assembly, it was planned “Pick up with 3 ton overpull to check MPT . . .


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Faroe
175 – Faroe

Deepsea Bergen Drilling Operational 31/7-2 S
Brasse Appraisal
P&A 28/09/2017 8 hrs were used cutting the extension joints. During the cutting a high stick-slip was observed by . . .


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