P
PA	Public Adress
P(A)BX	Private (Automatic) Branch eXchange
PACPOL	Pacific Ocean Pollution Prevention Programme website
PAGA	Public Adress and General Alarm
PAH	Pressure Alarm High
	Polycyclic Aromatic Hydrocarbons
PAHH	Maximum Operating Pressure
PAJ	Petroleum Association of Japan
PAL	Pressure Alarm Low
	Phase Alternation Line
PAN	Programmable Acoustic Navigator
PAPA	Prepare to Abandon Platform Alarm
PAS	Plant Air Supply
	Pollution Abatement System
PAU	Pre-Assembled Unit
PAW	Plasma Arc Welding
PB	Pull Box
PCA	Principal Component Analysis
	Portland Cement Association
PCB	PolyChlorinatedBiphenyl
PCF	Parallel Control Flow
	Per Cubic Foot
	Personnel Control Facility
	Petroleum Communication Foundation
	Polymer Clad Fiber
	Pound-force per Cubic Foot (unit of material density)
PCG	Parent Company Guaranty
PCI	Professional Certified Investigator (ASIS)
PCM	Photo Chemical Machining (for steel : more commonly known as etching)
	Pulse Code Modulation
PCP	Package Control Panel
PCPSO	Principle Counter Pollution and Salvage Officer (UK Coastguards Agency MCA)
PCS	Process Control System
	Production Control System
PCT	Polychlorinated Triphenyls
	Pressure Controlled Tester
	Process Control Technology
	Product Confidence Test
	Production Conformance Test
	Percent
PCV	Pressure Control Valve
	Production Choke Valve
PCWU	Production, Compression, Water injection and Utilities (platform)
PDC	Polycrystalline Diamond Cutter
PDC(S)	Power Distribution Control (System)
PDF	Portable Distribution Format
PDL	Petroleum Developments Licence
PDMG	Project Development & Management Guide
PDMS	Production data Management System
PDO	Plan for Development and Operation
PDOP	Position Dilution Of Precision
PDQ	Production, Drilling and Quarters (platform)
PDS	Process Data Server
	Process Data management System
PDVSA	Petroleum de Venezuela (company)
PE	Protective Earth
	Polyethylene
	Plain End
PEDL	Petroleum Exploration and Development Licence
PEFS	Process Engineering Flow Scheme
PEHD	High Density Polyethylene
PEEK	Polyetheretherketone, a thermoplastic used as a seat material for steam service valves
PEMFC	Proton-Exchange-Membrane Fuel Cell
PEP	Plan d'Exécution du Projet (french)
PERSGA	The Regional Organisation for the Conservation of the Environment of the Red Sea and the Gulf of Aden website
PFC	Perfluocarbon
	Power Factor Correction
PFD	Process/Production Flow Diagram
	Personal Flotation Device
PFI	Pipe Fabrication Institute (USA) website
PFP	Passive Fire Protection
PFS	Process Flow Scheme
PFSO	Port Facility Security Officer
PG	Pump Group
	Persian Gulf
	Power Generation
	Pressure Gauge
	Processing Gain
	Professional Geologist
	Propylene Glycol
	Product Group
PGA	Purchased Gas Adjustment
PGB	Permanent/Production Guide Base
PGS	Petroleum Geo Services (company)
PHC	Primary Healthcare Contract
PHFFU	Plant Held For Futur Use
PHRC	Port Harcourt Refining Co. Limited webpage (a division of NNPC)
PHS	Pipe History System
PHSER	Project HSE Review
P & I Clubs	Protection and Indemnity Associations
P&ID	Piping/Process & Instrument Diagram
PI	Pressure Indicating function code
PIANC	International Navigation Association
PID	Proportional-Integral-Derivative (control or controller)
PIG	Pipeline Inspection Gauge
PIGV	Pigging Valve
PIMMAG	Petroleum Industry of Malaysia, Mutual Aid Group
PIP	Pipe In Pipe
PISN	Private Integrated Services Network
PJ	Pump Jack
PL	Punch List
	Production Licence
PLC	Programmable Logic Controller
PLEM	Pipe Line End Manifold
PLET	Pipe Line End Termination
PLIB	Post Lay Inspection and Burying
PLL	Potential Loss of Life
	Phase-Locked Loop
PLM	Pigging Loop Module
PLR	Pipe Lines and Risers
P-M	Pierson-Moskowitz (scale that categorizes the force of progressively higher wind speeds and sea state)
PMAESA	Port Management Association of Eastern and Southern Africa
PMBOK	Project Management Body Of Knowledge
PMC	Project Management Committee
PMCD	Pressurized Mud Cap Drilling
PMS	Piping Material Specifications
	Planned/Preventive Maintenance System
PMT	Project Management Team
PMTC	Project Management Team Coordinator
PMV	Production Master Valve
PNR	Printer
PO	Purchase Order
POB	Personnel On Board
POBC	Permanent Ocean Bottom Cable
POD	Probability Of Detection
PODOMS	Prevention Of Dropped Objects Management System
POLMAR	French National Marine anti Pollution Plan website
POLREP	Pollution Report
PON	Petroleum Operations Notice (UK)
POSC	Petrotechnical Open Software Corporation
POT	Peak Over Threshold
PP	Polypropylene
PPE	Personnel Protective Equipment
PPL	Petroleum Prospecting Licence
PPMC	The Products and Pipelines Marketing Company (a division of NNPC)
PPR	Pressure Protection and Relief
PPS	Particular Project Specification
PPT	Pre Production Trial
PQR	Procedure Qualification Record
PQT	Procedure for Qualification Trial,
PRA	Probabilistic Risk Assessment/Project Risk Analysis
PRC	Preliminary Check
PREP	National Preparedness for Response Exercise Program (USA) website
PRF	Pulse Repetition Frequency
PROCOR	modelisation software for Cathodic PROtection against CORrosion  (website)
PROD	Preferred Orientation and Displacement (system)
PRV	Pressure Release Valve
PS	Project Specifications
	Percentage Strain
PSA	Pre Start-up Activity
	Probabilistic Safety Assessment
PSACR	Power Sum Attenuation to Crosstalk Ratio
PSELFEXT	Power Sum Equal Level Far End CrossTalk
PSC	Project Safety Concept
	Port State Control
	Production Sharing Contract
PSD	Production Shut-down
	Process Safety Diagram
PSDV	Process Shut Down Valve
PSHH	Pressure Switch High High
PSI	Pound-force per Square Inch
PSIA	PSI absolute (=PSIG + atmospheric pressure)
PSIG	PSI (Pound-force per Square Inch) above atmospheric pressure
PSK	Phase Shift Keying
PSL	Pressure Switch Low
PSLL	Pressure Switch Low Low
PSM	Process Safety Management
PSMSL	Permanent Service for Mean Sea-Level  website
PSNEXT	Power Sum Near End CrossTalk
PSP	Physical Security Professional (ASIS)
PSS	Process Safety System
	Process Shut-down System
PSSA	Particularly Sensitive Sea Area
PSSR	Pre Start-up Safety Review
	Pressure System Safety Regulation
	Project Scope Summary Report
PSTN	Public Switched Telephony Network
PSU	Production and Storage Unit
PSV	Pressure Safety Valve
	Production Swab Valve
	Platform Support Vessel
PSVM	Plutao, Saturno, Venus and Marte (deep water oil field developped by BP offshore Angola on block 31)
PT	Pressure Target
PTFC	Polytetrafluorocarbon
PTFE	Polytetrafluorethylene knowned as Teflon
PTI	Power Tool Institute (USA) website
PTR	Plant Thermal Reduction
	Project Technical Review
PTS	Project Technical Specification
PTW	Permit to Work
PUR	Polyurethane Resin
PU	Pump Unit
PUQ	Production Utilities Quarter (platform)
PUS	Probability of Under Sizing
PV	Process Variable
PVC	Poly Vinyl Chloride
PVC-U	Unplasticized Poly Vinyl Chloride
PVDF	Polyvinylidiene Fluoride
PVHO	Pressure Vessel for Human Occupancy
PVM	Pipe Vibration Meter (Hand equipment developped by Mitsui Babcock)
PVOH	PolyVinyl alcOHol
PVR	Plant Volume Reduction (PTR expressed in Mcf)
PWD	Pressure While Drilling
PWHT	Post Weld Heat Treatment
PWR(I)	Produced Water Re-Injection
PWS	Power Well Services (company)
PWV	Production Wing Valve
PZIG	PayZone Inclination & Gamma-ray