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P
PSO (Gas Lift)
PSO (Gas Lift): Surface opening pressure of the gas lift valve.
PSP: Premature setting of packer.
PSV: Production swab valve.
PSV: Pressure safety valve.
PS Wave (Seismic): Seismic energy that has traveled partly as a P wave and
then as an S wave, having been converted on reection at an interface.
Psychrophilic Bacteria: A group of bacteria that grow and thrive in tem-
peratures below 68°F (20°C).
PTAC: Packaged terminal air-conditioning system.
PTFE: Polytetrauoroethylene (e.g., Teon™).
PT (Gas Lift): Tubing pressure.
PTL: Production technical limits.
PTRO (Gas Lift): Test rack opening pressure for a gas lift valve.
PTS: Pressure ...