WE Report

Lessons Learned

Lessons Learned865


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

DNO
8259 – DNO

Deepsea Yantai Drilling
Own Experience
Operational 35/10-13
Kjøttkake
N/A 14/02/2025 HLB has provided a Commander 1000 cement head for launching darts and is to be used for the entire . . .

Drilling Engineer


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DNO
6876 – DNO

Nobel Invincible HSEQ
NEA Q&A
Planning 2/6-7 S
Falstaff
N/A 02/05/2024

Fiskeridirektoratet fraråder at det blir gitt tillatelse til prøveboring. Som begrunnelse vises det . . .

Anniken Meisler / Anniken Meisler



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DNO
6875 – DNO

Nobel Invincible HSEQ
NEA Q&A
Planning 2/6-7 S
Falstaff
N/A 09/04/2024

Planlagt hamring for lederør med lydutsending som starter på et lavt nivå og øker gradvis til . . .

Anniken Meisler / Anniken Meisler



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DNO
5927 – DNO

Deepsea Yantai Drilling
Own Experience
Operational 25/7-11 S
Norma
N/A 19/09/2023 Mud cooler was used frequently throughout the wells. It was mobilized during Eirik and rigged up . . .

John Langelandsvik / Morten Laget


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DNO
5919 – DNO

Deepsea Yantai Drilling Operational 25/7-11 S
Norma
N/A 10/09/2023 Done as per plan. For the coring operations a new LCM pill was mixed. The LCM from the 8 1/2″ . . .

Drilling Engineer / Morten Laget


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DNO
5912 – DNO

Deepsea Yantai Drilling
Own Experience
Operational 25/7-11 S
Norma
N/A 06/09/2023 Plugging of transfer lines when taking Microbar from vessels several times.

John Langelandsvik / Morten Laget


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DNO
4761 – DNO

No Rig Drilling
Own Experience
Planning No well N/A 10/08/2022 In DG1-DG2 rig screening strategy the project landed on 1.5 or Dual derrick rig and all time and . . .

Zol Mollaeian / Sigve K. Næsheim


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DNO
1992 – DNO

Borgland Dolphin C&P
Own Experience
INTERNAL
Operational A-1 H, A-2 H, A-3 HT2
Oselvar
N/A 14/07/2021 Sometimes invoice dates does not match with actual backload dates

Drilling Engineer / Stig Seland



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DNO
1547 – DNO

Borgland Dolphin Drilling
Own Experience
Operational A-1 H, A-2 H, A-3 HT2
Oselvar
N/A 29/05/2021 Camera not able to get a 360 view as it was off center

Lars Solvang / Stig Seland



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DNO
1531 – DNO

Borgland Dolphin Logistics
Own Experience
Planning A-1 H, A-2 H, A-3 HT2
Oselvar
N/A 21/05/2021 Max PAX during operations landed on 16 PAX in even good flying conditions and personnel was bumped . . .

Johan Kjos-Hanssen / Stig Seland



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DNO
1437 – DNO

Borgland Dolphin HSEQ
PSA Q&A
Planning 2/5-15
Gomez
N/A 16/04/2021

Hvordan samordner operatør og boreentreprenør behov for å gjennomføre fortløpende . . .

Karina Helle / Morten Laget


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DNO
1438 – DNO

Borgland Dolphin HSEQ
PSA Q&A
Planning 2/5-15
Gomez
N/A 16/04/2021

Hvilke tiltak har operatør iverksatt for å sikre at operatørs og annet 3. parts utstyr tatt ombord . . .

Karina Helle / Morten Laget


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DNO
1439 – DNO

Borgland Dolphin HSEQ
PSA Q&A
Planning 2/5-15
Gomez
N/A 16/04/2021

Hvilke rutiner er etablert for å formidle resultater fra arbeidsmiljøkartlegginger eller . . .

Karina Helle / Morten Laget


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DNO
1440 – DNO

Borgland Dolphin Marine
PSA Q&A
Planning 2/5-15
Gomez
N/A 16/04/2021

Hva gjøres for å unngå dannelse av martensitt i overflatene på ankerkjettingene?

Karina Helle / Morten Laget


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DNO
1442 – DNO

Borgland Dolphin Marine
PSA Q&A
Planning 2/5-15
Gomez
N/A 16/04/2021

Vi ber om en bekreftelse på at dere for operasjonsdypgangen har beregnet forankringen for de . . .

Karina Helle / Morten Laget


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DNO
1443 – DNO

Borgland Dolphin Marine
PSA Q&A
Planning 2/5-15
Gomez
N/A 16/04/2021

Hva skal gjøres for å unngå torsjon i kjettingene både under operasjon og under bruk av . . .

Karina Helle / Morten Laget


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DNO
1444 – DNO

Borgland Dolphin Marine
PSA Q&A
Planning 2/5-15
Gomez
N/A 16/04/2021

Vi ber om en kopi av deres dokumentasjon på at polyestertauene er rotasjonsfrie.

Karina Helle / Morten Laget


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DNO
1445 – DNO

Borgland Dolphin HSEQ
PSA Q&A
Planning 2/5-15
Gomez
N/A 16/04/2021

Utdrag av rapport /66/ DNO, 2021. P968-DNO-D-RA-0004 Rig intake report mhp. beredskapsrelaterte . . .

Karina Helle / Morten Laget


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DNO
1413 – DNO

Borgland Dolphin Drilling
Own Experience
INTERNAL
Operational A-1 H, A-2 H, A-3 HT2
Oselvar
N/A 08/04/2021 Difficult to find the relevant risks in a very comprehensive risk register

Anniken Meisler / Anniken Meisler


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DNO
1345 – DNO

Borgland Dolphin HSEQ
PSA Q&A
Planning A-1 H, A-2 H, A-3 HT2
Oselvar
N/A 11/02/2021

Vernetjenesten i Dolphin Drilling har en kommentar i deres uttalelse til samtykket. Vi ber om . . .

Karina Helle / Morten Laget


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