I have some more information..
"Further definition on the annulus with the SAP:
- In producers, two
casings are run after the 20” conductor: 13â…œ” Intermediate at ~500m and
9â…” Production string at ~1200m. There is a 4 "” tubing string inside the
9â…” casing. The pressure is in B Annulus = annulus between 13â…œ” by 9â…”.
- In the Injector
two casings are run after the 13â…œ” conductor: 9â…” Intermediate at ~500m
and 7” Production string ~1200m, no completion is run. The annulus of
concern is the annulus between the 9â…” by 7” casing
The fluid being bled off is gas.
The pressure can increase or decrease
after starting a lube & bleed operation.
Usually there is no liquid to
bleed off until sometime after the inhibited water has been injected as part of
the Lube & Bleed operation.
The casing pressure can be over MAASP so this has to be managed. "