P&A

P&ID

P Wave

PAL

P/Z Plot

Pack-Off

Packer

Packer Bore Receptacle

Packer Elements

Packer Fluid

Packer Milling

Packer Squeeze Cementing

Packerless Completions

Packing (seals)

Packing Element

Packoff

PACV

Pad

Paddle Blender or Mixer

PAL (log)

PAL (lift)

Paleocene

Paleontology

Paleozic

Paraffin

Paraffin base oil

Paraffin Scratcher

Parent

Parted Rods (beam lift)

Partial Completion

Partial Monolayer

Partial Penetration

Partial Pressure

Particle Distribution

Pascal

Passivation (corrosion)

Passive

Patch (tubular)

Pattern Water Flood

Pay Zone

Payoff

Payout

PB

Pb (reservoir fluids)

PBR

PBTD

PBU

PC

PCL (SSSV)

PCP

PCT (brine)

PCT (tool)

PD (gas lift)

PD (reserves)

PDC

PDC Log

PDG

PDHG

PDNP (reserves)

PDP

PDM

PE

PE (plastic)

Peat

PEEK

PEI

Penetration Rate (drilling or well cleanout)

Pennsylvanian

Penny Frac

Pentane

Peptize

Percussion Hammer (drilling)

PERF

Perforated Liner

Perforating Charge

Perforating Debris

Perforating Density

Perforating Depth Control

Perforating Gun

Perforation

Perforation Breakdown

Perforation Carrot

Perforation Crush Zone

Perforation Density

Perforation Entry Hole

Perforation Penetration

Perforation Phasing

Perforation Prepacking

Perforation Shot Density

Perform(tm)

Period

Permafrost

Permanent Packer

Permeability or k

Permeability Barrier

Permeability Contrast

Permeability Correlation

Permeation

Permian

PES

Petal Basket (cementing)

Petal Basket Flowmeter (logging)

PETN

Petrochemicals

Petroleum

Petrophysics

P_f

PFO

P_h

PH

Phase

Phosphate Esters

Phosphonates

PHPA

PI

Pick (seismic)

Pick Up Weight

Pickett Plot

Pickle

PIE (BP)

Pig

Pill

Pilot

Pilot Hole

Pilot Mill

Pin (in pipe)

Pin (in wireline tools)

Pinch Out

P inj

Pinnacle Reef

PIP

Pip Tag

Pipe Dope

Pipe Heavy

Pipe Light

Pipe Rack

Pipe Rams

Pipe Tongs

Pipeline

Pipeline Quality Oil

Pipeline gas

Pipe Upset

PISS

PISTL

PIT

Pit (drilling)

Pitman

Pitot tube

PITS

Pitting

Pitting Resistance Equivalent Number

PJ

PJTHA

Pkr

PL

Planktonic

Plastic Deformation

Plastic Fluid

Plastic Viscosity

Plateau

Platform

Play

PLC

PLET (subsea)

PLT

Plug

Plug and Abandon

Plug and Cage

Plug and Seat Choke

Plug Back

Plug Back Depth

Plug Container or Dropper (cementing)

Plug Flow

Plug Valve

Plunger (gas wells)

Plunger (beam lift)

Plutonic igneous (rock)

PMACS

PML (perforating)

PNC

PNG

PNID

PNL

Pocket (drilling)

Pocket (gas lift)

Pod Mixer

POH

welcome

welcome

Polished Bore

Polished Bore Receptacle

Polished Nipple

Polished Rod

Polished Rod Clamp (beam lift)

Polyacrylamide

Polyester

Polymer

Pony Rod

POP (plug)

POP (production)

Poppet Valve

POOH

Pool

Pooled Unit

Poorly Sorted

POP

POP (downhole)

Pore

Pore pressure gradient

Pore Size Distribution

Pore Throat

Porosity

Porosity Cutoff

Port Plug

Potable Water

Ported Nipple

Portland Cement

Positive Choke

Possible Reserves

Possum Belly

Potassium Chloride

Potassium Chloride Substitute

Potassium K⁴⁰

Potential (electrical)

Potential (risk analysis)

Pour Point

Power Fluid

Power Law Fluid

Power Swivel (drilling and workovers)

Power Tongs

Pozzlin

PP

PP (formation)

PPB

PPE

PPG

PPGA

PPM

PPPOT-T

PPS

PPTB

PR

Pr (reservoir)

PRE

Precambrian

Precipitated

Precipitation Hardening

Precipitation Point

Precision

Prehydrated (clay or polymer)

Prepacked Screen

Prepacking (perfs)

Prescient (Risk)

Present Net Value

Preserved Core

Pressure

Pressure Bomb

Pressure Buildup

Pressure Dependent Permeability

Pressure Falloff

Pressure Gradient

Pressure Integrity Test

Pressure Relief Valve

Pressure Transient Test

Pressure Traverse

Pressurized Mud Balance (fluid density)

Primacord(tm)

Primary Cementing

Primary Completion

Primary Production

Primary Recovery

Primary Term

Prime Mover

Primer Cord

Probabilistic Estimate (Risk)

Probability

Probability Distribution (Risk)

Probable Reserves

Produced Gas-Oil-Ratio

Producing Horizon

Producing Well

Production Casing

Production Chemist

Production Index

Production Log

Production Packer

Production Pressure Operated Valve (gas lift)

Production Separator

Production Technical Limits

Production Test

Production Tree

Production Tubing String

Production Wing Valve

Productivity Index

Profile

Propane

Propellant

Proppants

Prorationing

Prospect

Prosper(tm)

Protection String

Proved Reserves

Proved Undeveloped Reserves

Proved Developed Reserves

PRP

PRV

P_s

PS

PS Wave (seismic)

PSA

PSASV

PSC (contract)

PSC (gas lift)

PSD

Pseudogravity (seismic)

Pseudoplastic fluid

PSI

PSIA

PSIG

PSL

PSO (gas lift)

PSP

PSV

PT (gas lift)

PT (skills)

PT (subsea)

PT (well test)

PTFE

PTRO (gas lift)

PTL

PTS

PU

Public Lands

PUD (reserves)

Puddle Job

Pulling Unit (rig)

Pulse Echo Tool

Pulsed Neutron Log

Pump Barrel (beam lift)

Pump Down Tool

Pump Efficiency

Pump Jack

Pump Off

Pump-Open Plug

Pump Out Plug

Pump Trucks

Pumpability

Pumping Tee

Puncher Charge

Pup Joint

Purple K

Push Pill

PV (drilling fluids)

PV (PVT analysis)

PV (rock)

PVC (gas lift)

PVC (plastic)

PVDF

PVT

PW

PWI

PWRI

PWT

Pyrobitumen

PYX