No user selected
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Report No.
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199 |
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Discipline/Origin
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Drilling |
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Well
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Kallåsen |
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Date created
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2019/02/05 |
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Project Phase
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Operational |
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LL Type/Classification
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Equipment |
Transocean Arctic
N/A Equipment LL with Wellesley
Kallåsen (35/12-6 S) – Surface section
What happened:
The Franks CRTi tool was made up to top drive before csg entered OH. With the water depth and OH section length, the CRTi tool was taken off after only 200 m/2.5 hrs before the 18 3/4″ WH RT and 5 1/2″ landing string was made up.
What was planned:
Run casing using CRTi tool
What was learned:
It takes rig time to change to longer 15 ft bails which are required for running the CRTi and the CRTi itself.. Laying out CRTi after use will also leave csg. static in OH, increasing possibility to get stuck.
What actions are required:
If hole conditions are good after a wiper trip in next well, consider to NOT use the CRTi tool. Should be kept onboard only as back-up.
Transocean Arctic
What happened in Surface section:
The Franks CRTi tool was made up to top drive before csg entered OH. With the water depth and OH section length, the CRTi tool was taken off after only 200 m/2.5 hrs before the 18 3/4″ WH RT and 5 1/2″ landing string was made up.
Run casing using CRTi tool
It takes rig time to change to longer 15 ft bails which are required for running the CRTi and the CRTi itself.. Laying out CRTi after use will also leave csg. static in OH, increasing possibility to get stuck.
If hole conditions are good after a wiper trip in next well, consider to NOT use the CRTi tool. Should be kept onboard only as back-up.
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
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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
-
- 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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