In this case, many might assume it’s a formation influx or a reservoir-related problem — but it’s not.
We were not in the reservoir zone, and this was not a risk or well control event.

What actually happened:
During the drill-out phase, the annular space became saturated, together with the cleaning pothole, which initially caused a circulation plug (loss).
Once the plug was unclogged, it resulted in the brief surface event you see here — lasting only about two minutes.

Key Takeaway:
Not every fluid return issue or surface event indicates a formation or pressure problem.
In drilling operations, similar evidence can appear due to superficial causes, such as:
1.Poor hole cleaning
2.Mud contamination
3.Annular restrictions
4.Sudden release after circulation losses

This short event is a great reminder that understanding the context of what we observe at surface is essential before drawing conclusions.

Stay alert, analyze evidence carefully, and never stop learning from every operation.