By: Drilling Engineer
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Report No.
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5872 |
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Discipline/Origin
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Drilling |
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Well
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Norma |
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Date created
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2023/08/07 |
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Project Phase
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Operational |
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LL Type/Classification
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Bit |
Deepsea Yantai
Positive Bit LL with DNO
Norma (25/7-11 S) – Surface section
What happened:
the ROP is very slow ( 1-2 m/hr) after drilling approximately 1500 meters using XZ816 PDC bit. Drilling in hard formation in limestone stringers. The drilling bit was worn in the outer cutting structure and small worn in the inner of the cutting structure. All of the parameters using maximum WOB up 24 MT was tried and no further progress. The grade of the bit is 0-2-CT-G-X-I-NO-PR.
What was planned:
Drilling using 8 blades drilling bit
What was learned:
Changed the drilling bit with 6 blades with the same cutting structure to get more aggresive bit and the ROP was increase up to 20 m/hr
Deepsea Yantai
What happened in Surface section:
the ROP is very slow ( 1-2 m/hr) after drilling approximately 1500 meters using XZ816 PDC bit. Drilling in hard formation in limestone stringers. The drilling bit was worn in the outer cutting structure and small worn in the inner of the cutting structure. All of the parameters using maximum WOB up 24 MT was tried and no further progress. The grade of the bit is 0-2-CT-G-X-I-NO-PR.
Drilling using 8 blades drilling bit
Changed the drilling bit with 6 blades with the same cutting structure to get more aggresive bit and the ROP was increase up to 20 m/hr
Additional Documentation
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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- Time Estimate<\/a><\/li>\n\t\t\t\t\t\t\t\t
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