Definition(s)
B-Annulus
Designation of an annulus between the production casing and the next outer casing
- Note 1 to entry: The letter designation continues in sequence for each outer annulus space encountered between casing strings, up to and including the surface casing and conductor casing strings.
[SOURCE: API RP 90, modified]
Source: ISO 16530-1:2017, Petroleum and natural gas industries – Well integrity – Part 1: Life cycle governance, First Edition, March 2017. Global Standards
B-Annulus
The annulus designation between the production casing and next outer casing. The letter designation continues in sequence for each and every outer annular space encountered between casing strings up to and including the surface casing and conductor casing strings.
Source: API RP 90, Annular Casing Pressure Management for Offshore Wells, Upstream Segment. First Edition, August 2006. Global Standards
B-Annulus
Annuli between the production casing and the previous casing string.
Source: NORSOK D-010, Well integrity in drilling and well operations, Rev. 3, August 2004. Global Standards