WE Report

Lessons Learned

Lessons Learned865


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

Wellesley
2323 – Wellesley

Borgland Dolphin Drilling Operational 36/1-4
Hemispheres
Top hole 24/12/2021 Tool used successfully but Schlumberger should be told what our requirements are at the planning . . .

Drilling Supervisor / Morten Laget


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Wellesley
2324 – Wellesley

Borgland Dolphin Drilling
Own Experience
Operational 36/1-4
Hemispheres
Top hole 24/12/2021
30″ conductor and cement was cleaned out with seawater and sweeps, hole displaced to 1.40 SG . . .

Drilling Supervisor / 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
2321 – Wellesley

Borgland Dolphin Drilling
Own Experience
Operational 36/1-4
Hemispheres
Top hole 23/12/2021 o At 281m conductor couldn’t pass due to the tight spot observed when drilling there. Attempted to . . .

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
1358 – Wellesley

Borgland Dolphin Drilling
Own Experience
INTERNAL
Planning 36/1-4
Hemispheres
Top hole 04/03/2021 Multiple requests for data raised during the creation of the model. The data requests were often . . .

Giacomo Bonomo / Morten Laget


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Wellesley
1139 – Wellesley

Transocean Arctic Marine
PSA Q&A
Planning 25/1-13
Balcom
N/A 10/02/2021

AFC side 32 i søknaden står det «Earliest handover date for the rig is 22nd January 2018.». På side . . .

Karina Helle / Morten Laget



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Wellesley
1141 – Wellesley

Transocean Arctic Marine
PSA Q&A
Planning 25/1-13
Balcom
N/A 10/02/2021

Vi ber også om en beskrivelse av hvilke kommunikasjonsløsninger som blir brukt til å kommunisere . . .

Karina Helle / 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
555 – Wellesley

Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger
Top hole 21/09/2020 Took onboard 90 m3 ready mixed kill mud in Stolsfjorden

Drilling Supervisor


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Wellesley
556 – Wellesley

Borgland Dolphin Logistics Operational 6204/11-3
Schweinsteiger
Rig move 21/09/2020 19 persons booked transport by bus to Fedafjorden. Positive feedback from service companies and . . .

Johan Kjos-Hanssen


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Wellesley
519 – Wellesley

Borgland Dolphin Drilling Planning 6204/11-3
Schweinsteiger
P&A 17/09/2020 Evaluated if joining the Rig Chase Campaign would be beneficial compared to the original plan using . . .

Elisabeth Vik


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Wellesley
1063 – Wellesley

Borgland Dolphin Logistics Operational 6204/11-3
Schweinsteiger
Top hole 15/09/2020 Rig Required extra Barite at short notice due to challenges in top hole. PSV delivered Approximately . . .

Johan Kjos-Hanssen


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Wellesley
498 – Wellesley

Borgland Dolphin 6204/11-3
Schweinsteiger
09/09/2020 Increased MW to 1.20 SG on bottom of 12 1/4″ section

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
476 – Wellesley

Borgland Dolphin Drilling Operational 6204/11-3
Schweinsteiger
Top hole 02/09/2020 Due to shallow gas zone at 331m, needed to fill casing with mud to be ready in case of need to wash . . .

Drilling Supervisor


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