Subsea well Annulus

[anji71]

Hi Folks,

A subsea well that has been shut in for 3 months has suddenly dropped it's annulus pressure from 60bar to 10bar. Other than a leak or pressure transmitter issue, would anything else contribute to this?

 

[sraesttam]

Are you measuring the annulus pressure at sea level or at the mudline?

See link below:

https://www.glossary.oilfield.slb.com/Terms/p/phase_redistribution.aspx