Normal Pressure

Formation pressure equal to the pressure exerted by a vertical column of water with salinity normal for the geographic area.

Source: API RP 59, Recommended Practice for Well Control Operations, Second Edition, May 2006. Global Standards


Normal Pressure

“Normal pressure” means a formation pore pressure, proportional to depth, which is roughly equal to the hydrostatic pressure gradient of a column of salt water (.465 psi/ft).

Source: Corporation Commission, Oil and Gas Conservation, Oklahoma Administrative Code 165:10, February 2013. Regulations


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