| Operator | Rig | Discipline / Origin | Project Phase | Well | Section | Date | What Happened | |
|---|---|---|---|---|---|---|---|---|
|
5911 – DNO  |
Deepsea Yantai | Drilling | Operational | 25/7-11 S Norma |
Reservoir section | 05/09/2023 |
Time drill to initiate KO with 2 m/hr. Good performance kicking off from mainbore, no problems
Drilling Engineer / Morten Laget |
|
|
5852 – DNO |
Deepsea Yantai | Drilling Own Experience |
Operational | 25/7-11 S Norma |
Top hole | 30/07/2023 |
The pH meter showed indications of cement in return (pH value of 11.6-12.3). Due to poor visibility . . .
Drilling Engineer / Morten Laget |
|
|
5853 – DNO |
Deepsea Yantai | Drilling Own Experience |
Operational | 25/7-11 S Norma |
Top hole | 30/07/2023 |
After the cement of the 30″ conductor was set up the WHRT was released and POOH. Movement was seen . . .
Drilling Engineer / Morten Laget |
|
|
5855 – DNO |
Deepsea Yantai | Drilling Own Experience |
Operational | 25/7-11 S Norma |
Top hole | 30/07/2023 |
After the 30″ conductor shoe was drilled the inclination of the conductor increased. Used the WHRT . . .
Drilling Engineer / Morten Laget |
|
|
5859 – DNO |
Deepsea Yantai | Drilling Own Experience |
Operational | 25/7-11 S Norma |
Top hole | 30/07/2023 |
Drawwork in landing mode. No change in hookload while cementing and displacing.
Drilling Engineer / Morten Laget |
|
|
5861 – DNO |
Deepsea Yantai | Drilling Own Experience |
Operational | 25/7-11 S Norma |
Top hole | 30/07/2023 |
Difficult to see cement in return due to poor visibility at seabed. pH sniffer indicated cement in . . .
Drilling Engineer / Morten Laget |
|
|
5862 – DNO |
Deepsea Yantai | Drilling Own Experience |
Operational | 25/7-11 S Norma |
Top hole | 30/07/2023 |
When displacing the 26″ hole at TD a large volume of WBM was needed. And due to VDL the mud column . . .
Drilling Engineer / Morten Laget |
|
|
5867 – DNO |
Deepsea Yantai | Subsurface Own Experience |
Operational | 25/7-11 S Norma |
Surface section | 30/07/2023 |
New version of the Gravitas earlier used. The WSG not used to the new version.
Drilling Engineer / Morten Laget |
|
|
2198 – DNO |
Borgland Dolphin | Drilling Own Experience |
Operational | A-1 H, A-2 H, A-3 HT2 Oselvar |
P&A | 04/10/2021 |
H2S had formed in the annulus fluid.
Lars Solvang / Stig Seland |
|
|
2200 – DNO |
Borgland Dolphin | Bleed of package Own Experience |
Operational | A-1 H, A-2 H, A-3 HT2 Oselvar |
P&A | 04/10/2021 |
The wireline plug failed and a backup had to be run.
Lars Solvang / Stig Seland |
|
|
2202 – DNO |
Borgland Dolphin | Completion Own Experience |
Operational | A-1 H, A-2 H, A-3 HT2 Oselvar |
P&A | 04/10/2021 |
Clamps holding the control lines (polyoil clamps) had disintegrated. Tubing had to be cut after it . . .
Lars Solvang / Stig Seland |
|
|
2174 – DNO |
Borgland Dolphin | Subsea Own Experience |
Operational | A-1 H, A-2 H, A-3 HT2 Oselvar |
P&A | 01/10/2021 |
Extraction stopped as the hub was secured with wire bracing. These had to be cut before operation . . .
Lars Solvang / Stig Seland |
|
|
2110 – DNO |
Borgland Dolphin | Subsurface Own Experience |
Operational | A-1 H, A-2 H, A-3 HT2 Oselvar |
Production section | 08/09/2021 |
The results from the pressure test caused some initial confusion regarding if the test was . . .
Øystein Prytz / Stig Seland |
|
|
2098 – DNO |
Borgland Dolphin | Drilling Own Experience |
Operational | 2/5-15 Gomez |
Surface section | 27/08/2021 |
Unable to set seal assembly after 13 3/8″ hanger was landed. Attempted several times to pressure up . . .
Drilling Supervisor / Morten Laget |
|
|
2093 – DNO |
Borgland Dolphin | Multi Discipline Own Experience INTERNAL |
Operational | A-1 H, A-2 H, A-3 HT2 Oselvar |
P&A | 23/08/2021 |
No lessons learnt meetings were held with the offshore team (DSV and DE) during operations.
Øystein Prytz / Stig Seland |
|
|
2012 – DNO |
Borgland Dolphin | Drilling Own Experience |
Operational | 2/5-15 Gomez |
Top hole | 12/08/2021 |
ROV was only equipped with standard jetting tool with low flowrate, unable to remove larger amounts . . .
Drilling Supervisor / Morten Laget |
|
|
2005 – DNO |
Borgland Dolphin | Drilling Own Experience |
Operational | A-1 H, A-2 H, A-3 HT2 Oselvar |
P&A | 28/07/2021 |
Volume required was larger that expected for first 20 bar. However from 20 bar to 50 bar the volume . . .
Drilling Supervisor / Stig Seland |
|
|
1994 – DNO |
Borgland Dolphin | Drilling Own Experience |
Operational | A-1 H Oselvar |
P&A | 21/07/2021 |
Bottom 0.5 m of the toolstring is the Ultrasonic rotating IBCS-E sub. This sub has a larger OD . . .
Drilling Supervisor / Stig Seland |
|
|
1993 – DNO |
Borgland Dolphin | Drilling Own Experience |
Operational | A-1 H Oselvar |
P&A | 19/07/2021 |
Jacked 9 5/8″ free using Baker Mastodon jacking tool. Used 49 pressure cycles to jack casing 17 m, . . .
Drilling Supervisor / Stig Seland |
|
|
1990 – DNO |
Borgland Dolphin | Drilling Own Experience |
Operational | A-3 HT2 Oselvar |
P&A | 13/07/2021 |
Set 20″ EZSV at 694,5 m according to procedure. Tagged EZSV with 10 t. Pressured up to 50 bar, no . . .
Drilling Supervisor / Stig Seland |
New Lesson Learned
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- PROJECT PHASE
- Operational
- Planning
- Reporting
- CLASSIFICATION
- Positive
- Negative
- Origin
- Own Experience
- Experience Transfer Meeting
- NEA Q&A
- PSA Q&A
- PSA Findings
- DMF
- Norog
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- RIG
Borgland Dolphin- Island Innovator
- Well
Oselvar- Gomez
- PROJECT PHASE
- Operational
- Planning
- Reporting
- CLASSIFICATION
- Positive
- Negative
- Origin
- Own Experience
- Experience Transfer Meeting
- NEA Q&A
- PSA Q&A
- PSA Findings
- DMF
- Norog
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- RIG
- Island Innovator
- Well
- Gråspett
- PROJECT PHASE
- Operational
- Planning
- Reporting
- CLASSIFICATION
- Positive
- Negative
- Origin
- Own Experience
- Experience Transfer Meeting
- NEA Q&A
- PSA Q&A
- PSA Findings
- DMF
- Norog
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- RIG
- Deepsea Bergen
- WELL
- Brasse
- Rungne
- PROJECT PHASE
- Operational
- Planning
- Reporting
- CLASSIFICATION
- Positive
- Negative
- Origin
- Own Experience
- Experience Transfer Meeting
- NEA Q&A
- PSA Q&A
- PSA Findings
- DMF
- Norog
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NO LLs for INEOS- RIG
- Borgland Dolphin
- WELL
- Fat Canyon
- PROJECT PHASE
- Operational
- Planning
- Reporting
- CLASSIFICATION
- Positive
- Negative
- Origin
- Own Experience
- Experience Transfer Meeting
- NEA Q&A
- PSA Q&A
- PSA Findings
- DMF
- Norog
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- RIG
- Deepsea Yantai
- Well
- Shrek
- PROJECT PHASE
- Operational
- Planning
- Reporting
- CLASSIFICATION
- Positive
- Negative
- Origin
- Own Experience
- Experience Transfer Meeting
- NEA Q&A
- PSA Q&A
- PSA Findings
- DMF
- Norog
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- PROJECT PHASE
- Operational
- Planning
- Reporting
- CLASSIFICATION
- Positive
- Negative
- Origin
- Own Experience
- Experience Transfer Meeting
- NEA Q&A
- PSA Q&A
- PSA Findings
- DMF
- Norog
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Borgland Dolphin<\/a><\/li>\n\t\t\t\t\t\t\t\t
Deepsea Bergen<\/a><\/li>\n\t\t\t\t\t\t\t\t
Deepsea Nordkapp<\/a><\/li>\n\t\t\t\t\t\t\t\t
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Transocean Arctic<\/a><\/li>\n\t\t\t\t\t\t\t\t
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Brasse<\/a><\/li>\n\t\t\t\t\t\t\t\t
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Grosbeak<\/a><\/li>\n\t\t\t\t\t\t\t\t
Grosbeak West<\/a><\/li>\n\t\t\t\t\t\t\t\t
Hemispheres<\/a><\/li>\n\t\t\t\t\t\t\t\t
Kall\u00e5sen<\/a><\/li>\n\t\t\t\t\t\t\t\t
Gr\u00e5spett<\/a><\/li>\n\t\t\t\t\t\t\t\t
Gomez<\/a><\/li>\n\t\t\t\t\t\t\t\t
Oselvar<\/a><\/li>\n\t\t\t\t\t\t\t\t
Rungne<\/a><\/li>\n\t\t\t\t\t\t\t\t
Shrek<\/a><\/li>\n\t\t\t\t\t\t\t\t
Schweinsteiger<\/a><\/li>\n\t\t\t\t\t\t\t\t
Serin<\/a><\/li>\n\t\t\t\t\t\t\t\t
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- Cement<\/a><\/li>\n\t\t\t\t\t\t\t\t
- QHSE<\/a><\/li>\n\t\t\t\t\t\t\t\t
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- Project Management<\/a><\/li>\n\t\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\n\t\t\t\t<\/li>\n\t\t\t\t
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Oselvar<\/a><\/li>\n\t\t\t\t\t\t\t\t
Gomez<\/a><\/li>\n\t\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t
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- Logistics<\/a><\/li>\n\t\t\t\t\t\t\t\t
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- Time Estimate<\/a><\/li>\n\t\t\t\t\t\t\t\t
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- Top hole<\/a><\/li>\n\t\t\t\t\t\t\t\t
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