A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Natural Gas Associated with oil accumulations, which may be dissolved in the oil at reservoir conditions (solution gas) or may form a cap of free gas above the oil (gas cap).
Advisory Committee on Improved Oil Recovery Research.
BCM (usually written bcm)
Billion cubic metres (see also under Conversion Factors)
Best Practicable Environment Option
BOPD (often bopd)
Barrels of oil per day.
Central Area Transmission System
Coal Bed Methane (CBM)
Natural gas produced in a coal seam during the formation of the coal. Coal seams form the reservoir rocks and traps for the methane, which is usually of near- pipeline quality.
Common Data Access
A mixture of pentanes and higher hydrocarbons.
Conversion Factors (approximate)
1 tonne crude oil = 7.5 barrels = 1.19 cubic metres;
1 barrel (US) = 35 Imperial gallons = 0.16 cubic metres;
1 cubic metre = 35.31 cubic feet;
1 billion cubic metres of gas = 0.92 million tonnes of oil equivalent;
1 cubic metre of gas = 0.36 therms;
1 tonne fuel oil = 405 therms;
1 therm = 105.5 megajoules (MJ);
1 kilowatt hour = 3.6 megajoules.
1 million tonnes of crude oil = 7.5 million barrels;
1 million tonnes of crude oil per year = 21 thousand barrels per day.
(See also Tonne of Oil Equivalent below.)
"Cost Reduction Initiative for the New Era". An oil industry-Government exercise to aid greater competitiveness.
Natural gas composed mainly of methane with only minor amounts of ethane, propane and butane and little or no heavier hydrocarbons in the gasoline range.
Environmental Impact Assessment
Eastern Area Project
Far North Liquids and Gas System
The separation of single fractions from a mixture of hydrocarbon fluids, mainly by distillation.
Hydrocarbon Additional Recovery Programme.
Health and Safety Commission.
Health and Safety Executive.
International Energy Agency.
Infrastructure and Energy Projects Directorate (Incorporating OSO).
Liquefied natural gas. Natural gas, gaseous at normal temperatures and pressures but held in the liquid state at very low temperatures to facilitate storage and transport.
Liquefied petroleum gas. Essentially propane and/or butane meeting fuel use specifications, gaseous at normal temperatures and pressures but held in the liquid state by pressure to facilitate storage and transport.
MMSCFPD (often mmscfpd)
Millions of cubic feet per day.
Natural Environment Research Council
Natural gas liquids. A mixture of liquids derived from natural gas, including propane, butane, ethane and gasoline components (pentanes plus)
Scottish Area Gas Evacuation
Shearwater-Elgin Area Line
Tonne of Oil Equivalent
One tonne of oil equivalent is defined as having a calorific value of 397 therms. All fuels, including crude oil and petroleum products, have been converted to the tonne of oil equivalent using their own calorific values.
Natural gas having significant amounts of heavier hydrocarbons in the gasoline range.
A mixture of liquids derived from crude oil, including gasolines, kerosene, aviation kerosene, diesel fuels and gas oils.
Note: Further details of the conversion methods used, and the calorific values of fuels, may be found in the annual Digest of United Kingdom Energy Statistics (available from Stationery Office).
| Table of Contents
Chapter 1 | Chapter 2 | Chapter 3 | Chapter 4 | Chapter 5 | Chapter 6 | Chapter 7 | Chapter 8 | Chapter 9
Appendix 1 | Appendix 2 | Appendix 3 | Appendix 4 | Appendix 5 | Appendix 6 | Appendix 7 | Appendix 8
Appendix 9 | Appendix 10 | Appendix 11 | Appendix 12 | Appendix 13 | Appendix 14 | Appendix 15 | Appendix 16 | Appendix 17
Plate 1 | Plate 2W | Plate 2E | Plate 3W | Plate 3E | Plate 4W | Plate 4E | Plate 5W | Plate 5E | Plate 6 | Plate 7
Plate 8W | Plate 8E | Plate 9W | Plate 9E | Plate 10W | Plate 10E | Plate 11 | Plate 12