WE Report

Lessons Learned

Lessons Learned865


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

Wellesley
473 – Wellesley

Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger
Top hole 01/09/2020 To be able to use it for BHA-handling, a hole was made in the protector.

Drilling Engineer


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Wellesley
474 – Wellesley

Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger
Top hole 01/09/2020
Hit shallow gas at 331m, only 24m below 36″ conductor shoe. Killed with 1.50 SG kill mud. Drilled . . .

Drilling Supervisor


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Wellesley
475 – Wellesley

Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger
Top hole 01/09/2020
Hit shallow gas at 331m, only 24m below 36″ conductor shoe. Killed with 1.50 SG kill mud. Drilled . . .

Drilling Supervisor


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Wellesley
466 – Wellesley

Borgland Dolphin Marine Operational 6204/11-3
Schweinsteiger
Rig move 31/08/2020 When work wire and pre-laid mooring line was retrieved after vessel had received rig PCP, . . .

Stian Engvik / Morten Laget



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Wellesley
467 – Wellesley

Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger
Top hole 31/08/2020 More manual handling and time spent in addition to less efficient handling when not having all BHA . . .

Drilling Engineer


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Wellesley
472 – Wellesley

Borgland Dolphin SmartBlue
INTERNAL
Setup 6204/11-3
Schweinsteiger
Connection 31/08/2020 Unable to adapt to rig-networks subnet

admin


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Wellesley
1318 – Wellesley

Borgland Dolphin Operational 6204/11-3
Schweinsteiger
30/08/2020 Skeiv lasta basket backloaded.


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Wellesley
464 – Wellesley

Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger
Top hole 27/08/2020 No fill on 36″ hole wiper trip. Ran 30″ conductor, found 1m fill on bottom. Washed to bottom, picked . . .

Drilling Supervisor


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Wellesley
465 – Wellesley

Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger
Top hole 27/08/2020 Good suggestion from Dolphin not to do this as in past fibreglass tubing has broken due to vibration . . .

Drilling Supervisor


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Wellesley
462 – Wellesley

Borgland Dolphin Drilling Planning 6204/11-3
Schweinsteiger
26/08/2020 To low budget time on rig move

Morten Laget


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Wellesley
463 – Wellesley

Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger
Top hole 26/08/2020
Bentonite loaded onto rig in fjord but problems transferring from silos to surge tank in pit room . . .

admin


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Wellesley
1317 – Wellesley

Borgland Dolphin Planning 6204/11-3
Schweinsteiger
20/08/2020 Mobilisering av PAX til Green yard


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Wellesley
450 – Wellesley

Borgland Dolphin Drilling Planning 6204/11-3
Schweinsteiger
N/A 12/08/2020 Slow progress and no clear recommendations.

Morten Laget


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Wellesley
1186 – Wellesley

Borgland Dolphin HSEQ
NEA Q&A
Planning 6204/11-3
Schweinsteiger
N/A 24/07/2020

For SCR-100L, hemmer (Gul Y2) ber vi dere også oversende miljøvurderinger knyttet til kjemikalievalg . . .

Karina Helle / Morten Laget


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Wellesley
1185 – Wellesley

Borgland Dolphin HSEQ
NEA Q&A
Planning 6204/11-3
Schweinsteiger
N/A 24/06/2020

Kunne dere sendt HOCNF for følgende kjemikalier i forbindelse med saksbehandlingen for letebrønn . . .

Karina Helle / Morten Laget


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Wellesley
1187 – Wellesley

Borgland Dolphin HSEQ
NEA Q&A
Planning 6204/11-3
Schweinsteiger
N/A 24/06/2020

I forbindelse med forskriftsendringer i aktivitetsforskriftens §67, diskutert med Anniken i Well . . .

Karina Helle / Morten Laget


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Wellesley
232 – Wellesley

Transocean Arctic Logistics Operational 35/11-21 S
Grosbeak West
Top hole 16/06/2020 Crane operator was unable to lift from supply vessel as basket was too heavy at one end due to 36″ . . .


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Wellesley
233 – Wellesley

Transocean Arctic Drilling Operational 35/11-21 S
Grosbeak West
Surface section 16/06/2020 Several joints had to be broken out and made up again due to difficulties with centralizing joints . . .


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Wellesley
234 – Wellesley

Transocean Arctic Drilling Operational 35/11-21 S
Grosbeak West
Production section 16/06/2020 Good experience M/U 9 5/8″ VAM21 CWD2 joint with drilling bails rather than longer casing bails. . . .


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Wellesley
235 – Wellesley

Transocean Arctic Drilling Operational 35/11-21 S
Grosbeak West
Reservoir section 16/06/2020 Dropped 2 15/16″ drift to check 5 1/2″ DP/HWDP prior to coring (coring ball 1 1/4″). The drift was . . .


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