Environment Report 2016

ENVIRONMENT REPORT 2016

Large Combustion Plant

LCP

An unplanned or uncontrolled release of hydrocarbon or other substance from primary containment

Loss of containment

Megawatt thermal

MWth

Nitrous oxide

O

N

2

Naturally occurring radioactive materials

NORM

Nitrogen oxides

NO

x

Offshore Chemical Notification Scheme

OCNS OGA OPEP

Oil and Gas Authority

Oil Pollution Emergency Plan

The OSLO and Paris Convention for the protection of the marine environment of the North East Atlantic

OSPAR

Predicted Environmental Concentration

PEC

Perfluorocarbons

PFCs

Pose Little Or NO Risk – used by OSPAR to classify substances used and discharged offshore

PLONOR

Predicted No Effect Concentration Petroleum Operations Notice

PNEC PON1

Water that comes to the surface with hydrocarbons during production, either naturally from the reservoir or after injection into the reservoir to displace oil and lift it to the surface. The total annual production divided by the maximum production potential of all fields on the UKCS Registration, Evaluation, Authorisation and Restriction of Chemicals

Produced water

Production efficiency

REACH

Sulphur hexafluoride

SF

6

Sulphur oxides

SO

x

Seabirds Oil Sensitivity Index

SOSI

Reducing a crew on a rig to either zero or just a few key individuals and storing the rig in a harbour SUB chemicals are those classified under OCNS as harmful and should be phased out and substituted with a less harmful substance.

Stacked rig

SUB

UK Continental Shelf

UKCS

The controlled release of gases into the atmosphere in the course of oil and gas production operations

Venting

Volatile Organic Compounds

VOCs

A term used to describe the total mass of fluids moving through the production systems. This includes produced water and oil in produced water; the produced water and oil reinjected; the total hydrocarbons produced (gas, oil and condensate).

Well stream fluids

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