Petroleum Acronyms

OIL & GAS GLOSSARY

Facilities & Process Engineering

PFI

Definition

Process Flow and Instruments

PFI means Process Flow and Instruments. Refers to a type of engineering drawing showing process flows and instrumentation.

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NPRI

Non-Participating Royalty Interest

UPB

Upper Packer Bore

PIIP

Petroleum Initially in Place

SPEL

Spontaneous Potential Electric Log

UPT

Upper Production Tubing