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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Wellesley Petroleum
7699 – Wellesley Petroleum

Deepsea Yantai HSEQ
PSA Q&A
Planning No well N/A 06/12/2024

Sp. Mål. 1. Kap 9.3 tredje avsnitt om trafikkovervåkning står det følgende «If any irregularities . . .

Åse Kristin Pettersen / Morten Laget



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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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PGNiG
6874 – PGNiG

No Rig Other
Own Experience
Planning 6501/10-1
Tomcat
N/A 06/11/2023 It is strong currents at the location, and it was very hard to keep the ROV stable when surveying . . .

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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PGNiG
5834 – PGNiG

Deepsea Yantai Drilling
Own Experience
Planning 6305/10-1
Tomcat
N/A 15/06/2023
BO&K Analysis performed in Aug 2022, with a sensitivity on revised reservoir data.

The . . .

Richard Mollison / Morten Laget



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Wellesley
5833 – Wellesley

Deepsea Yantai Other Operational 35/10-10S
Carmen
N/A 13/06/2023 Unable to lift the BOP elevator with LMRP past fixed guide/bumper beams in moonpool. LMRP diameter . . .

Drilling Engineer / Morten Laget


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Wellesley
5171 – Wellesley

Deepsea Yantai Operational 35/10-10S
Carmen
N/A 06/05/2023 The BOP test tool was not ready to run. No DQ onboard and no status on the tool before they left the . . .

Drilling Engineer / Morten Laget


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DEA
5072 – DEA

No Rig HSEQ
Own Experience
INTERNAL
No well N/A 17/02/2023
Feedback:
– Likte rebusløpet veldig godt. Samme med Quiz, men kanskje ha den litt kortere. Og . . .

Karina Helle / Anniken Meisler


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PGNiG
4951 – PGNiG

Deepsea Yantai Drilling Operational 6608/1-1
Copernicus
N/A 26/09/2022 The Electrician was called and he found a loose wire (norwegian: fase) inside one of the . . .

Steinar Aarnes



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PGNiG
4922 – PGNiG

Deepsea Yantai Logistics
Own Experience
Operational 6608/1-1 S N/A 12/09/2022 Captain of the vessel suggested to use the Brine tank for the Premix as Premix does not contain . . .

Johan Kjos-Hanssen / 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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Wellesley
3241 – Wellesley

Borgland Dolphin HSEQ
Own Experience
Operational 36/1-4
Hemispheres
N/A 28/01/2022 There was a dropped object (DO) incident onboard BGL, and DO is not included in the reporting & . . .

Anniken Meisler / Morten Laget


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INEOS
1530 – INEOS

Borgland Dolphin Drilling
Own Experience
Operational PL937
Fat Canyon
N/A 02/10/2021 Difficulty accessing BHA drawings on SharePoint during rig move due to poor internet connection.

/



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INEOS
3404 – INEOS

Borgland Dolphin Rig Intake
Own Experience
Operational PL937
Fat Canyon
N/A 29/09/2021 Continuation of key personnel offshore (DSV, DE, services companies)


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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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