By: Drilling Engineer
|
Report No.
|
8277 |
|
Discipline/Origin
|
Drilling |
|
Well
|
Tomcat |
|
Date created
|
2025/02/15 |
|
Project Phase
|
Operational |
|
LL Type/Classification
|
Operational |
Deepsea Yantai
Operational LL with PGNiG
Tomcat (6501/10-1) – Intermediate section
What happened:
Losses and pack off during the circulation. Total losses in the end with 100 lpm.
What was planned:
Circulate prior to cement job.
What was learned:
Went straight to cementing. Increased the flowrate prior to cement in annulus to ensure the cement was out of casing before setting up. Decreased the flow to minimum flow for good cement job displacement once spacer out of hole. Added LCM in spacer. Could see the pressure build up as spacer/cement in anulus. Due to wrong amount of cement additive in the cement slurry in the middle of job (extra retarder) it could not be deemed a barrier as the cement might not set up.
What actions are required:
Mix correct slurry.
Deepsea Yantai
What happened in Intermediate section:
Losses and pack off during the circulation. Total losses in the end with 100 lpm.
Circulate prior to cement job.
Went straight to cementing. Increased the flowrate prior to cement in annulus to ensure the cement was out of casing before setting up. Decreased the flow to minimum flow for good cement job displacement once spacer out of hole. Added LCM in spacer. Could see the pressure build up as spacer/cement in anulus. Due to wrong amount of cement additive in the cement slurry in the middle of job (extra retarder) it could not be deemed a barrier as the cement might not set up.
Mix correct slurry.
EDITOR
CLOSE LL (testing)
New Lesson Learned
You do not have permission to view this form.
-
- 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
-
\n\t\t
\n\t\t\t\n\t\t\t
- \n\t\t\t\t
- All<\/a><\/li>\n\t\t\t\t
- DNO<\/a><\/li>\n\t\t\t\t
- DEA<\/a><\/li>\n\t\t\t\t
- 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
- \n\t\t\t\t
- \n\t\t\t\t\t\n\t\t\t\t\t
\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t
- \n\t\t\t\t\t\t\t\t
- 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
![](\"\/storage\/icons\/noun_oil_well_2946698.svg\")
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
\n\t\t\t\t\t\t\t- \n\t\t\t\t\t\t\t\t
- 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
\n\t\t\t\t\t\t\t- \n\t\t\t\t\t\t\t\t
- 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
\n\t\t\t\t\t\t\t- \n\t\t\t\t\t\t\t\t
- 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
- \n\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t
![](\"https:\/\/wellexpertise.com\/track-record-new\/logo_dno.png\")
<\/a>\n\t\t\t\t\t
\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t- \n\t\t\t\t\t\t\t\t
- 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
\n\t\t\t\t\t\t\t- \n\t\t\t\t\t\t\t\t
- 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
\n\t\t\t\t\t\t\t- \n\t\t\t\t\t\t\t\t
- 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