Secondary Well Barrier

Second set of well barrier elements that prevent flow from a source of inflow.

[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

Secondary Well Barrier

Second set of barrier elements that prevents flow from a source.

Source: API RP 90, Annular Casing Pressure Management for Offshore Wells, Upstream Segment. First Edition, August 2006. Global Standards

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