WE Report

Lessons Learned

Lesson Learned





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Report No.

306

Discipline/Origin

Drilling
No origin

Well

Canela
6507/7-16 S

Date created

2019/01/07
2526 days ago

Project Phase

Operational
Project Phase

LL Type/Classification

Cement
Negative

Island Innovator


What happened in Top hole:
The cement design was updated with reduced lead and increased tail slurry to provide better support for the conductor as it was discovered that the lead slurry does not build a lot of strength to support the conductor.

What Was Planned

Use of lead and tail cement slurry for cementing the conductor in place.

What Was Learned

Lead slurry does not build much strength to provide good support for the conductor.

What Actions Are Required

Evaluate to use a light weight cement blend for top holes to reduce risk of losses and to ensure good suport for the conductor.

EDITOR


CLOSE LL (testing)





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