A process flow diagram (PFD) is a diagram commonly used in chemical and process engineering to indicate the general flow of plant processes and equipment.

In thermodynamics, a quantity that is well defined so as to describe the path of a process through the equilibrium state space of a thermodynamic system is termed a process function, or, alternatively, a process quantity, or a path function.

PEF is a partial replacement for fossil fuels in cement kilns.

A means of purchasing goods or services.

Fluids coming out of completed wells which may consist of oil, water, gas, and condensable vapour.

Produced water is a term used in the oil industry to describe water that is produced as a byproduct during the extraction of oil and natural gas.

Producer gas is fuel gas that is manufactured from material such as coal, as opposed to natural gas.

Product certification or product qualification is the process of certifying that a certain product has passed performance tests and quality assurance tests, and meets qualification criteria stipulated in contracts, regulations, or specifications.

Product liability is the area of law in which manufacturers, distributors, suppliers, retailers, and others who make products available to the public are held responsible for the injuries those products cause.

The process of managing the entire lifecycle of a product from inception, through engineering design and manufacture, to service and disposal of manufactured products.

ANGELINA AMORETTI was built by Chinese shipyard Jiangsu Yangzijiang according to design from Kiel-based consultancy INEC GmbH.

Claimed to be the safest and most efficient medium-range tanker, STENA PARIS is the first unit of a new series of P-MAX product tankers built by Brodosplit Shipyard.

An oil tanker for carrying oil other than crude oil.

Tank cleaning may be required for one or more of the following reasons: 1. To carry clean ballast. 2. To gas free tanks for internal inspections, repairs or prior to entering dry dock.

The processing, safety and control systems, utility and auxiliary equipment, for producing hydrocarbon liquid and gas mixtures from completed wells or other sources.

Production fluid is the fluid mixture of oil, gas and water in formation fluid that flows to the surface of an oil well from a reservoir.

Production planning is the planning of production and manufacturing modules in a company or industry.

A pipe used in wells to conduct fluid from the producing formation into the Christmas tree. Unlike the casing, the tubing is designed to be replaced during the life of the well, if required.

Productivity is the efficiency of production of goods or services expressed by some measure.

Professional certification, trade certification, or professional designation, often called simply certification or qualification, is a designation earned by a person to assure qualification to perform a job or task.