Available now: 90 Annulus pressure managementRIGLOGICOS / SOLUTIONS
After the rig leaves · API RP 90-1 / 90-2

90 Annulus pressure
management.

Annular casing pressure management to API RP 90-1 (offshore) and RP 90-2 (onshore). Set the maximum allowable wellhead operating pressure for every annulus from the casing and tubing ratings, and diagnose pressure with bleed-down and build-up tests.

For: operators, well integrity and production engineers.

Request access Available now
MAWOP and the bleed-down testPick an annulus · run the diagnostic
Example well
Completed well with tubing, production, intermediate and surface casing, and the A, B and C annuli between them Packer Surface casing Intermediate Production Tubing
MAWOP Bleed-down Build-up, 24 h Run the test to diagnose
Annulus
Pressure source
MAWOP5,496 psi
Observed / MAWOP33 %
After 24 h build-upNot run
Below MAWOP Not diagnosed

Example well with API catalogue ratings. MAWOP shown as the lowest of 50 % of the burst rating of the casing being evaluated, 80 % of the burst rating of the next outer casing, and 75 % of the collapse rating of the inner string. The module follows the edition and well type you select.

What the module covers

The well keeps talking after the rig leaves.

Annulus pressure is how a producing well reports trouble. The annulus module turns the casing and tubing ratings into a limit for every annulus, records the diagnostic tests that tell thermal pressure from sustained casing pressure, and trends the history well by well.

  • MAWOP for every annulusFrom the casing and tubing ratings.
  • Diagnostic testsBleed-down and build-up tests, recorded and assessed.
  • Pressure historyTrends for each well and each field.
  • Built on the 5C3 strength engineThe same ratings the casing design used.
From your rig file
Casing program · reusedPipe ratings (5C3) · reusedAnnulus readings · newTest history · new
Get access

Managing annulus pressure?

Email us for access, a walkthrough on your own data, or a question about the module. The button opens your email app with the subject and a short form already filled in.

Request access See 5C3 pipe strength