overpressure

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overpressure

[′ō·vər‚presh·ər]
(fluid mechanics)
The transient pressure, usually expressed in pounds per square inch, exceeding existing atmospheric pressure and manifested in the blast wave from an explosion.
References in periodicals archive ?
The Jonah Field Overpressured Gas Plain, which is analogous to our prospect area, has similar overpressuring, depth, reservoir rocks and is estimated to be 2.