WE Report

Lessons Learned

Lesson Learned





By: Drilling Engineer

Report No.

5121

Discipline/Origin

Drilling
No origin

Well

Carmen
35/10-10S

Date created

2023/04/09
972 days ago

Project Phase

Operational
Project Phase

LL Type/Classification

Casing
Negative

Deepsea Yantai


What happened in Surface section:
Did not observe a shoulder making the casing up to 27 500 ft-lbs.

What Was Planned

Make up the 20″ casing with BIG OMEGA connection to 27500 ft-lbs (Optimum MU torque according to the spec sheet)

What Was Learned

Evaluate to use casing with other connection type. This problem was also experienced on the Eirik Well for OMV.

What Actions Are Required

Avoid using BIG OEMGA IS connections

What Was Done

Had to increase the tong settings to 45 000 ft-lbs optimum MU torque.

EDITOR


CLOSE LL (testing)





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