WE Report

Lessons Learned

Lesson Learned





By: Drilling Engineer

Report No.

4841

Discipline/Origin

Drilling
Own Experience

Well

6608/1-1 SNo well selected

Date created

2022/09/04
1189 days ago

Project Phase

Operational
Project Phase

LL Type/Classification

Casing
Negative

Deepsea Yantai


What happened in Intermediate section:
Had to switch to a BX elevator

What Was Planned

Run 13 3/8″ with CRTi for all joints including a no-cross joint with extended coupling. But could not use the CRTi with the no-cross joint.

What Was Learned

CRTi cannot stab far enough into the no-cross joint by ±15cm.

What Actions Are Required

Review with OWS to see if they can suggest a solution with the CRTi. Also look at running a normal joint if the weather is calm.

What Was Done

Used BX elevator dressed for 13 3/8″ just for one joint.

EDITOR


CLOSE LL (testing)





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