WE Report

Lessons Learned

Lesson Learned





By: Drilling Engineer

Report No.

8205

Discipline/Origin

Drilling
No origin

Well

Tomcat
6501/10-1

Date created

2025/02/03
307 days ago

Project Phase

Operational
Project Phase

LL Type/Classification

Equipment
No classification

Deepsea Yantai


What happened in Top hole:
Protan AM sleeve came sliding down after making up connection on 36” WHH. Joint and conductor string was hanging in a vertical position. Sleeve came sliding down after making up connection on 36” WHH

What Was Planned

Run LPWHH with Protan Sleeve

What Was Learned

Attempt to slide sleeve back up with use of slings and tuggers, but not successful. Unable to move conductor up and down because WHH joint crosses from 30” to 36” and is unable to pass through the 30” FMS.

What Actions Are Required

Get Protan sleeve properly fitted on shore. Emphasising it when planning/order.

EDITOR


CLOSE LL (testing)





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