By: Sander Schaathun
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Report No.
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5114 |
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Discipline/Origin
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Drilling |
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Well
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Eirik (OMV)No well selected |
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Date created
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2023/03/30 |
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Project Phase
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Operational |
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LL Type/Classification
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Mud |
Deepsea Yantai
Mud LL with Wellesley
– Intermediate section
What happened:
Experienced higher pore pressure earlier than expected. Had enough to weight up active from 1,44 to 1,57, but not enough Barite to weight up mud to, in this case 1,6 Sg.
What was planned:
Higher focus on Barite onboard as drilling closer to 12. 1/4″ TD. MW at 1,44 was planned.
What was learned:
Have barite on all boats coming to location? Always one boat on location with barite? Difficulties delivering barite. Evaluate to have heavier back up mud have a min of 100 T barite on each boat.
What actions are required:
Define in planning phase for how much extra MW can potentially be needed if high PP estimate comes in.
Deepsea Yantai
What happened in Intermediate section:
Experienced higher pore pressure earlier than expected. Had enough to weight up active from 1,44 to 1,57, but not enough Barite to weight up mud to, in this case 1,6 Sg.
Higher focus on Barite onboard as drilling closer to 12. 1/4″ TD. MW at 1,44 was planned.
Have barite on all boats coming to location? Always one boat on location with barite? Difficulties delivering barite. Evaluate to have heavier back up mud have a min of 100 T barite on each boat.
Define in planning phase for how much extra MW can potentially be needed if high PP estimate comes in.
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
-
- 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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- 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
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- Cement<\/a><\/li>\n\t\t\t\t\t\t\t\t
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- 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
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