WE Report

Lessons Learned

Lesson Learned





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Report No.

170

Discipline/Origin

Drilling
No origin

Well

Brasse Appraisal
31/7-2 A

Date created

2017/09/28
2991 days ago

Project Phase

Operational
Project Phase

LL Type/Classification

Operational
Negative

Deepsea Bergen


What happened in Intermediate section:
During displacement from WBM to OBM (while drilling out cement), attempted to u-tube kill and choke lines to OBM. This caused plugged lines due to drilled cement.

What Was Planned

Displace the well to OBM

What Was Learned

N/A

What Actions Are Required

Evaluate to slow down displacement rate when interphase reach BOP, then pump down OBM through kill and choke lines to avoid plugging of same.

EDITOR


CLOSE LL (testing)





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