WE Report

Lessons Learned

Lessons Learned865


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

PGNiG
4823 – PGNiG

Deepsea Yantai Marine
PSA Q&A
Planning 6608/1-1 Other 25/08/2022

The question of how the operator (PGNiG) ensures that the site-specific
criteria set for . . .

Sanne Risbakk / Morten Laget



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PGNiG
4824 – PGNiG

Deepsea Yantai Marine
PSA Q&A
Planning 6608/1-1 Other 25/08/2022

How are the weather conditions monitored ?​

Sanne Risbakk / Morten Laget



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PGNiG
4825 – PGNiG

Deepsea Yantai Marine
PSA Q&A
Planning 6608/1-1 Other 25/08/2022

It is sometimes run with reduced power from auxiliary engines for operation of the DP to save fuel. . . .

Sanne Risbakk / Morten Laget



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PGNiG
4826 – PGNiG

Deepsea Yantai Marine
PSA Q&A
Planning 6608/1-1 Other 25/08/2022

Is there a permanent or site-specific approval from DNV with regard to waves in deck for survival . . .

Sanne Risbakk / Morten Laget



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PGNiG
4827 – PGNiG

Deepsea Yantai Marine
PSA Q&A
Planning 6608/1-1 Other 25/08/2022

At which combinations of significant wave height and period should one, according to the operation . . .

Sanne Risbakk / Morten Laget



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PGNiG
4828 – PGNiG

Deepsea Yantai Marine
PSA Q&A
Planning 6608/1-1 Other 25/08/2022

How is the wave height measured at the location?​

Sanne Risbakk / Morten Laget



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PGNiG
4829 – PGNiG

Deepsea Yantai Marine
PSA Q&A
Planning 6608/1-1 S
Copernicus
Other 25/08/2022

Are there site-specific measurements of waves that make you know when to change draft?

Sanne Risbakk / Morten Laget



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PGNiG
4763 – PGNiG

Deepsea Yantai Marine
Own Experience
Planning Copernicus Rig move 23/08/2022 Mooring analysis was requested at an early stage of the planning fase, but was not taken into . . .

Stian Engvik / Morten Laget


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PGNiG
4764 – PGNiG

Deepsea Yantai HSEQ
Own Experience
Planning 6608/1-1 Other 23/08/2022 DSY waste management plan is according to IMO, and does not conflict with NOROG 093. It was . . .

Christina Sæland Rødne / Christina Sæland Rødne


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PGNiG
4765 – PGNiG

Deepsea Yantai Drilling
Own Experience
Planning Copernicus Surface section 23/08/2022 The use of normal HWDP Requires double handling from fingerboard to well center when running and . . .

Richard Mollison / Morten Laget


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PGNiG
4762 – PGNiG

Deepsea Yantai Drilling
Own Experience
Planning Copernicus Intermediate section 22/08/2022 4-string contingency scenario was miscommunicated and we did not have the 13 3/8″ SSRII landing . . .

Richard Mollison / 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
3373 – Wellesley

Borgland Dolphin Marine
Own Experience
Operational 36/1-4
Hemispheres
Rig move 18/02/2022 Uncontrolled runout of anchor and chain

Stian Engvik / Morten Laget



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Wellesley
3246 – Wellesley

Borgland Dolphin Drilling
Own Experience
Operational 36/1-4
Hemispheres
P&A 29/01/2022
Cement plug was pumped without incident, POOH through cement was without incident. Circulated clean . . .

Drilling Supervisor / Morten Laget



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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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Wellesley
4487 – Wellesley

Borgland Dolphin Logistics
Own Experience
Planning 36/1-4
Hemispheres
Other 15/01/2022 Another operator with the same rig chooses other vessels for a short well. Rig IDC, PSV’s not IDC . . .

Johan Kjos-Hanssen / Morten Laget



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Wellesley
2413 – Wellesley

Borgland Dolphin Drilling
Own Experience
Operational 36/1-4
Hemispheres
Surface section 04/01/2022
Ahead of a connection at 1146m (105m below the 13 3/8″ shoe), a blockage occurred in the cuttings . . .

Drilling Supervisor / Morten Laget


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Wellesley
2409 – Wellesley

Borgland Dolphin Drilling
Own Experience
Operational 36/1-4
Hemispheres
Top hole 01/01/2022 When making up 18 3/4″ WHH to No Cross joint it was very tight clearance for upper and lower jaws to . . .

Drilling Supervisor / Morten Laget


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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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