By: Karina Helle
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Report No.
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1221 |
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Discipline/Origin
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Drilling |
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Well
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Oselvar |
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Date created
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2012/04/22 |
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Project Phase
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Operational |
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LL Type/Classification
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Mud |
Borgland Dolphin
Negative Mud LL with DNO
Oselvar (A-1 H, A-2 H, A-3 HT2) – Production section
What happened:
DONG handover documentation: During the scraping of the EZSV plug and Whipstock setting area the mudweight was lowered to 1.55 sg from 1.58 sg.
External Actions
To avoid problems with hole instability during circulation (losses) the lowering of the mudweight could also have take place after the EZSV plug is set. The circulation went good during the job.
Borgland Dolphin
What happened in Production section:
DONG handover documentation: During the scraping of the EZSV plug and Whipstock setting area the mudweight was lowered to 1.55 sg from 1.58 sg.
To avoid problems with hole instability during circulation (losses) the lowering of the mudweight could also have take place after the EZSV plug is set. The circulation went good during the job.
EDITOR
CLOSE LL (testing)
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
-
- 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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- All<\/a><\/li>\n\t\t\t\t
- DNO<\/a><\/li>\n\t\t\t\t
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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
![](\"\/storage\/icons\/noun_rig_2570764.svg\")
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
- <\/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
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- 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
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- 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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- 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
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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
- <\/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
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- 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