| Operator | Rig | Discipline / Origin | Project Phase | Well | Section | Date | What Happened | |
|---|---|---|---|---|---|---|---|---|
|
5135 – Wellesley  |
Deepsea Yantai | Drilling | Planning | 35/10-10S Carmen |
Surface section | 10/04/2023 |
Difficult to install
Drilling Engineer / Morten Laget |
|
|
5136 – Wellesley |
Deepsea Yantai | Drilling | Planning | 35/10-10S Carmen |
Surface section | 10/04/2023 |
Overpull experienced trying to pull the WHRT clear of the Housing after release.
Drilling Engineer / Morten Laget |
|
|
5137 – Wellesley |
Deepsea Yantai | Drilling | Planning | 35/10-10S Carmen |
Surface section | 10/04/2023 |
Drilling Engineer / Morten Laget |
|
|
5121 – Wellesley |
Deepsea Yantai | Drilling | Operational | 35/10-10S Carmen |
Surface section | 09/04/2023 |
Did not observe a shoulder making the casing up to 27 500 ft-lbs.
Drilling Engineer / Morten Laget |
|
|
5122 – Wellesley |
Deepsea Yantai | Drilling | Operational | 35/10-10S Carmen |
Surface section | 09/04/2023 |
The shoetrack was made up to 27,500 ft.lbs.
Drilling Engineer / Morten Laget |
|
|
5123 – Wellesley |
Deepsea Yantai | Drilling | Operational | 35/10-10S Carmen |
Surface section | 09/04/2023 |
The centralizers was placed close to the bottom of the casing joint and was difficult to handle on . . .
Drilling Engineer / Morten Laget |
|
|
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 |
|
|
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 |
|
|
233 – Wellesley |
Transocean Arctic | Drilling | Operational | 35/11-21 S Grosbeak West |
Surface section | 16/06/2020 |
Several joints had to be broken out and made up again due to difficulties with centralizing joints . . .
|
|
|
253 – Wellesley |
Transocean Arctic | Drilling | Operational | 35/4-2 Songesand |
Surface section | 16/06/2020 |
The back-up 18 3/4″ wellhead assembly was sent out incomplete, without running tool, 9 m DP mandrel, . . .
|
|
|
254 – Wellesley |
Transocean Arctic | Drilling | Operational | 35/4-2 Songesand |
Surface section | 16/06/2020 |
Used 2 x pup joints due to aim of +-2 m rathole. The 2 m pup was difficult to make up due to the . . .
|
|
|
176 – Wellesley |
Transocean Arctic | Drilling | Operational | 35/12-7 Serin |
Surface section | 05/02/2019 |
5 MT WOB proved insufficient, no drilling progress in hard formation. Was allowed to increase to 10 . . .
|
|
|
177 – Wellesley |
Transocean Arctic | Drilling | Operational | 35/12-7 Serin |
Surface section | 05/02/2019 |
The 50-80 RPM range given in HSG was insufficient. There was a need to rotate bit & BHA faster . . .
|
|
|
178 – Wellesley |
Transocean Arctic | Drilling | Operational | 35/12-7 Serin |
Surface section | 05/02/2019 |
ECD calculation in SG EMW done by the MWD softwaremight not be intuitive. The SG is normally . . .
|
|
|
179 – Wellesley |
Transocean Arctic | Drilling | Operational | 35/12-7 Serin |
Surface section | 05/02/2019 |
The cuttings were encapsulated with mud, very little hydration, dry and crisp inside.
|
|
|
180 – Wellesley |
Transocean Arctic | Drilling | Operational | 35/12-7 Serin |
Surface section | 05/02/2019 |
Took time POOH from TD. Pulled straight to 15 MT overpull, worked same. Thereafter lubricated with . . .
|
|
|
181 – Wellesley |
Transocean Arctic | Drilling | Operational | 35/12-7 Serin |
Surface section | 05/02/2019 |
The 13 3/8″ casing was run to 2 m above the land off depth for 18 3/4″ WH. Circulated 1.5 x BU with . . .
|
|
|
182 – Wellesley |
Transocean Arctic | Drilling | Operational | 35/12-7 Serin |
Surface section | 05/02/2019 |
When pumping drillwater out of the cement unit displacement tank, the pump sucked air, and delivered . . .
|
|
|
194 – Wellesley |
Transocean Arctic | Drilling | Operational | 35/12-6 S Kallåsen |
Surface section | 05/02/2019 |
The stop ring for balloon centralizer on the inner string cmt stinger was installed on top of . . .
|
|
|
195 – Wellesley |
Transocean Arctic | Drilling | Operational | 35/12-6 S Kallåsen |
Surface section | 05/02/2019 |
The WHIM or “funnel” on the seabed for pumping mud up to the rig, filled up with gumbo and large . . .
|
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
-
- 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
-
- 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
-
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
-
- 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
-
- 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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- Faroe<\/a><\/li>\n\t\t\t\t
- INEOS<\/a><\/li>\n\t\t\t\t
- PGNiG<\/a><\/li>\n\t\t\t\t
- Wellesley<\/a><\/li>\n\t\t\t\t
- <\/span>Advanced Search<\/a><\/li>\n\t\t\t<\/ul>\n\n\t\t\t
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- RIG<\/li>\n\t\t\t\t\t\t\t\t
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Deepsea Yantai<\/a><\/li>\n\t\t\t\t\t\t\t\t
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
Island Innovator<\/a><\/li>\n\t\t\t\t\t\t\t\t
Transocean Arctic<\/a><\/li>\n\t\t\t\t\t\t\t\t
- <\/li>\n\t\t\t\t\t\t\t\t
- Well<\/li>\n\t\t\t\t\t\t\t\t
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Balcom<\/a><\/li>\n\t\t\t\t\t\t\t\t
Brasse<\/a><\/li>\n\t\t\t\t\t\t\t\t
Canela<\/a><\/li>\n\t\t\t\t\t\t\t\t
Fat Canyon<\/a><\/li>\n\t\t\t\t\t\t\t\t
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
Songesand<\/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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- PROJECT PHASE<\/li>\n\t\t\t\t\t\t\t\t
- Operational<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Planning<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Reporting<\/a><\/li>\n\t\t\t\t\t\t\t\t
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- CLASSIFICATION<\/li>\n\t\t\t\t\t\t\t\t
- Positive<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Negative<\/a><\/li>\n\t\t\t\t\t\t\t\t
- <\/li>\n\t\t\t\t\t\t\t\t
- Origin<\/li>\n\t\t\t\t\t\t\t\t
- Own Experience<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Experience Transfer Meeting<\/a><\/li>\n\t\t\t\t\t\t\t\t
- NEA Q&A<\/a><\/li>\n\t\t\t\t\t\t\t\t
- PSA Q&A<\/a><\/li>\n\t\t\t\t\t\t\t\t
- PSA Findings<\/a><\/li>\n\t\t\t\t\t\t\t\t
- DMF<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Norog<\/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\t\t- \n\t\t\t\t\t\t\t\t
- TYPE<\/li>\n\t\t\t\t\t\t\t\t
- Equipment<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Planning<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Operational<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Location specific<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Bit<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Logistics<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Mud<\/a><\/li>\n\t\t\t\t\t\t\t\t
- BHA<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Cement<\/a><\/li>\n\t\t\t\t\t\t\t\t
- QHSE<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Sidetrack design<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Time Estimate<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Shallow Gas<\/a><\/li>\n\t\t\t\t\t\t\t\t
- BOP<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Casing<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Connections<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Rig specific<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Coring<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Cut & pull<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Sublease<\/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\t
\n\t\t\t\t\t\t\t- \n\t\t\t\t\t\t\t\t
- Section<\/li>\n\t\t\t\t\t\t\t\t
- P&A<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Top hole<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Surface section<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Reservoir section<\/a><\/li>\n\t\t\t\t\t\t\t\t
- N\/A<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Production section<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Rig move<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Intermediate section<\/a><\/li>\n\t\t\t\t\t\t\t\t
- <\/li>\n\t\t\t\t\t\t\t\t
- DISCIPLINE<\/li>\n\t\t\t\t\t\t\t\t
- Drilling<\/a><\/li>\n\t\t\t\t\t\t\t\t
- HSEQ<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Logistics<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Well test<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Marine<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Rig Intake<\/a><\/li>\n\t\t\t\t\t\t\t\t
- C&P<\/a><\/li>\n\t\t\t\t\t\t\t\t
- External Environment<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Subsea<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Subsurface<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Multi Discipline<\/a><\/li>\n\t\t\t\t\t\t\t\t
- 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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<\/a>\n\t\t\t\t\t
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- RIG<\/li>\n\t\t\t\t\t\t\t\t
- Borgland Dolphin<\/a><\/li>\n\t\t\t\t\t\t\t\t
Island Innovator<\/a><\/li>\n\t\t\t\t\t\t\t\t
- <\/li>\n\t\t\t\t\t\t\t\t
- Well<\/li>\n\t\t\t\t\t\t\t\t
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
\n\t\t\t\t\t\t\t- \n\t\t\t\t\t\t\t\t
- PROJECT PHASE<\/li>\n\t\t\t\t\t\t\t\t
- Operational<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Planning<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Reporting<\/a><\/li>\n\t\t\t\t\t\t\t\t
- <\/li>\n\t\t\t\t\t\t\t\t
- CLASSIFICATION<\/li>\n\t\t\t\t\t\t\t\t
- Positive<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Negative<\/a><\/li>\n\t\t\t\t\t\t\t\t
- <\/li>\n\t\t\t\t\t\t\t\t
- Origin<\/li>\n\t\t\t\t\t\t\t\t
- Own Experience<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Experience Transfer Meeting<\/a><\/li>\n\t\t\t\t\t\t\t\t
- NEA Q&A<\/a><\/li>\n\t\t\t\t\t\t\t\t
- PSA Q&A<\/a><\/li>\n\t\t\t\t\t\t\t\t
- PSA Findings<\/a><\/li>\n\t\t\t\t\t\t\t\t
- DMF<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Norog<\/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\t\t- \n\t\t\t\t\t\t\t\t
- TYPE<\/li>\n\t\t\t\t\t\t\t\t
- Equipment<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Planning<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Operational<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Location specific<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Bit<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Logistics<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Mud<\/a><\/li>\n\t\t\t\t\t\t\t\t
- BHA<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Cement<\/a><\/li>\n\t\t\t\t\t\t\t\t
- QHSE<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Sidetrack design<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Time Estimate<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Shallow Gas<\/a><\/li>\n\t\t\t\t\t\t\t\t
- BOP<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Casing<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Planning<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Planning<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Top hole<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Planning<\/a><\/li>\n\t\t\t\t\t\t\t\t
- Planning<\/a><\/li>\n\t\t\t\t\t\t\t\t
- DNO<\/a><\/li>\n\t\t\t\t