WE Report

Lessons Learned

Lessons Learned865

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

Faroe
1101 – Faroe

 		Transocean Arctic HSEQ
PSA Q&A		 Planning 30/6-30
Rungne		 N/A 08/02/2021

Er det representanter for Oceaneering på både arbeidstaker- og arbeidsgiversiden i felles stedlig . . .

Karina Helle / Morten Laget



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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
285 – Faroe

 		Transocean Arctic Marine Planning 30/6-30
Rungne		 Rig move 01/10/2019 Timings for anchor handling prio to leaving Rungne location proved to be overly optimistic bearing . . .


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Faroe
273 – Faroe

 		Transocean Arctic Drilling Operational 30/6-30
Rungne		 Intermediate section 30/09/2019 The 5 1/2″ DP handling pup made up to the 9 5/8″ casing hanger running tool was too short. The . . .


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Faroe
274 – Faroe

 		Transocean Arctic Drilling Operational 30/6-30
Rungne		 Intermediate section 30/09/2019 Tagged fill 30 m above casing hanger landing depth/ casing shoe 36 m off bottom. Washed heavy casing . . .


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Faroe
275 – Faroe

 		Transocean Arctic Drilling Operational 30/6-30
Rungne		 Intermediate section 30/09/2019 Unable to set 9 5/8″ seal assembly. Observed initial pressure increase but unable to pass 100-120 . . .


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Faroe
276 – Faroe

 		Transocean Arctic Drilling Operational 30/6-30
Rungne		 Intermediate section 30/09/2019 The overpull margin was down to only 26 mt at the end, while running the heavy and long 9 5/8″ . . .


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Faroe
270 – Faroe

 		Transocean Arctic Drilling Operational 30/6-30
Rungne		 Intermediate section 27/09/2019 Difficult to achieve data acqusition requirement of 10 m samples.


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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
277 – Faroe

 		Transocean Arctic Drilling Operational 30/6-30
Rungne		 Reservoir section 01/01/2019 Made first connection on core BHA #3. This 64 m core BHA would require 2 connections on bottom. . . .


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Faroe
278 – Faroe

 		Transocean Arctic Drilling Operational 30/6-30
Rungne		 Reservoir section 01/01/2019 During POOH with coring assembly #3, took 70 mt overpull at 3250 m. After pulling further 9 m, got a . . .


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Faroe
1102 – Faroe

 		Transocean Arctic HSEQ
PSA Q&A		 Planning 30/6-30
Rungne		 N/A 13/07/2018

Hvem ivaretar MOB-beredskapen under operasjonen? TOA eller berredskapsfartøy?

Karina Helle / Morten Laget


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