Thermally induced annulus pressure

Pressure in an annulus generated by thermal expansion or contraction of trapped fluids

  • Note: 1 to entry: On wells where there is no annulus access, sustained casing pressure can be present.

[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

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