Stable (Stabilized)

A state in which the pressure change rate has decreased to within acceptable limits before beginning the hold period during a pressure test. NOTE: Pressure changes can be caused by such things as variations in temperature, setting of elastomer seals, or compression of air or fluids, etc.

Source: API STD 53, Blowout Prevention Equipment Systems for Drilling Wells, Upstream Segment, Fourth Edition, November 2012. Global Standards

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