WE Report

Lessons Learned

Lessons Learned865


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

Wellesley
2401 – Wellesley

Borgland Dolphin Drilling
Own Experience
Operational 36/1-4
Hemispheres
Production section 30/12/2021 ALL mud skips was put on the same boat, effectively removing any hope for recieving backload on said . . .

Drilling Engineer / Morten Laget


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Wellesley
2347 – Wellesley

Borgland Dolphin Logistics
Own Experience
Operational 36/1-4
Hemispheres
Top hole 28/12/2021
Saga Fjordbase took the 75ft riser joint and backloaded in addition to the 30″ conductor joints. The . . .

Drilling Engineer / Morten Laget


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Wellesley
2346 – Wellesley

Borgland Dolphin Logistics
Own Experience
Operational 36/1-4
Hemispheres
WELS/Kabal software 27/12/2021
Dolphin HR-personnel booked and moved people in WELS, then they confirmed them in WELS also, in . . .

Drilling Engineer / Morten Laget


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Wellesley
2326 – Wellesley

Borgland Dolphin Logistics
Own Experience
Operational 36/1-4
Hemispheres
Top hole 26/12/2021 The base and boat backloaded the primary and secondary 18 3/4″ WHHs instead of two 30″ conductor . . .

Drilling Engineer / Morten Laget


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Wellesley
2325 – Wellesley

Borgland Dolphin Drilling
Own Experience
Operational 36/1-4
Hemispheres
Top hole 24/12/2021
The deck-crew on days started to lay out slick joints in one bay before a crew change happened in . . .

Drilling Engineer / Morten Laget


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Wellesley
2322 – Wellesley

Borgland Dolphin Logistics
Own Experience
Operational 36/1-4
Hemispheres
Top hole 23/12/2021
It was observed in the manifest that the connection on the 13 3/8″ swages was Vam21, in addition to . . .

Drilling Engineer / Morten Laget


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Wellesley
1365 – Wellesley

Borgland Dolphin Marine
Own Experience
Operational 6204/11-3
Schweinsteiger
Rig move 09/03/2021 Two(2) harbour tugs were contracted by Dolphin Drilling to assist in holding Borgland Dolphin . . .

Stian Engvik / Morten Laget



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Wellesley
552 – Wellesley

Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger
P&A 21/09/2020
Ran through BOP while jetting from top of BOP and landed out on top of wear bushing without hanging . . .

Drilling Supervisor


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Wellesley
553 – Wellesley

Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger
P&A 21/09/2020
Re-dressed DQ MPT tool after retrieving 9 5/8″ wear bushing. RIH and jetted through BOP at high rate . . .

Drilling Supervisor


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Wellesley
554 – Wellesley

Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger
Top hole 21/09/2020
Not able to load barite due to long transfer lines when loading on starboard side.
Bentonite ended . . .

Drilling Supervisor


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Wellesley
483 – Wellesley

Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger
Surface section 05/09/2020 Ran MPT tool dressed to pull extended wear bushing. Successfully engaged and sheared out but hung up . . .

Drilling Supervisor


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Wellesley
481 – Wellesley

Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger
Top hole 03/09/2020
Made up shoe track to maximum torque. On attempting to change torque values in JAM system to optimum . . .

Drilling Supervisor


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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
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
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
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
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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