WE Report

Lessons Learned

Lesson Learned





By: Drilling Engineer

Report No.

4905

Discipline/Origin

Drilling
No origin

Well

Copernicus
6608/1-1 S

Date created

2022/09/16
1177 days ago

Project Phase

Operational
Project Phase

LL Type/Classification

Planning
Negative

Deepsea Yantai


What happened in P&A:
To balanced the cement plug by pumping more spacer behind the cement plug.

What Was Planned

During P&A Plug 1a&b: To pump 15.4 m3 spacer (13.5 m3 ahead and 1.9 after, left in lines)

What Was Learned

Its more practical to reduce the spacer volume ahead of the cement and keep the line volume of spacer behind.

What Actions Are Required

To plan for rather to decrease spacer volume ahead of cement plug instead of increasing to set a balanced cement plug to avoid confusion. Was also recommended by HLB to to it this way.

EDITOR


CLOSE LL (testing)





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