ENVIRONMENT REPORT 2013
page 29
8.
Appendix B: Glossary
Backloaded
The process of returning wastes or unused materials back to shore by
supply vessel
bopd
Barrels of oil per day
CH
4
Methane
CO
Carbon monoxide
Cumulative and in
combination effects
Refers to the potential for multiple developments in the same area to have
an impact on the environment that might be greater than the sum of the
effects of the individual developments
DECC
Department of Energy and Climate Change
Drill cuttings
Rock fragments arising from the drilling of a well
Drill cuttings pile
Previously permitted discharge of drill cuttings has resulted in
accumulations, or piles of cuttings, on the seabed underneath some
offshore installations. The management of these piles is subject to OSPAR
Recommendation 2006/5 which is reviewed every five years
Ecosystem
An ecosystem is a dynamic complex of plant, animal and microorganism
communities and their non-living environment interacting as a functional unit
Ecosystem approach
A strategy for the integrated management of land, water and living
resources that promotes conservation and sustainable use
EEMS
Environmental and Emissions Monitoring Systems
EMS
Environmental Management System
ESAS
European Seabirds at Sea database
MMSCFD
Million Standard Cubic Feet Per Day
NCP
National Contingency Plan for Marine Pollution from Shipping and Offshore
Installations
NORM
Normally Occurring Radioactive Materials
NOx
Nitrogen oxides
OPEP
Oil Pollution Emergency Plan
OSPAR
Oslo and Paris Convention for the protection of the marine environment of
the north east Atlantic
Produced water
Water that exists in subsurface formations and is brought to the surface
during oil and gas production
Re-injection
The process by which some waste streams, for example drill cuttings and
produced water, can be pumped back into the reservoir or to deep rock
strata. Not all installations have this capability and it is dependent on
suitable geology
SO
2
Sulphur dioxide
UKCS
UK Continental Shelf
