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Report No. |
289 |
Discipline/Origin |
Drilling |
Well |
Brasse |
Date created |
2019/10/02 |
Project Phase |
Operational |
LL Type/Classification |
Operational |
Transocean Arctic
Negative Operational LL with Faroe
Brasse (31/7-3 S) – Top hole
What happened:
Seabed visibility poor and current high when cementing 30″ conductor. Inclination on bullseyes suggested 1 degree or less, but changed to 1.5 degrees when the 13 3/8″ was landed. This prompted a check on cement level depth via the PGB cementing funnels – which showed cement 17 m below seabed. Possibly/probably connected to heavy boulders drilled below seabed.
What was planned:
Cement 30″ conductor
What was learned:
Is there an LCM which can be added in such cases?
What actions are required:
Investigate if there is a LCM which can be added.
Transocean Arctic
What happened in Top hole:
Seabed visibility poor and current high when cementing 30″ conductor. Inclination on bullseyes suggested 1 degree or less, but changed to 1.5 degrees when the 13 3/8″ was landed. This prompted a check on cement level depth via the PGB cementing funnels – which showed cement 17 m below seabed. Possibly/probably connected to heavy boulders drilled below seabed.
Cement 30″ conductor
Is there an LCM which can be added in such cases?
Investigate if there is a LCM which can be added.
EDITOR
CLOSE LL (testing)
-
- 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
-