Technical Terms

I Company No. 240409-T I
GLOSSARY OF TECHNICAL TERMS
Associated gas
Btu
Butane
CHP
CNG Condensate
cubic feet
Ethane
Hydrocarbons
km
ktoe
ktoe/t
Methane
MFO
MMBtu
MMScfd
Natural gas Natural gas that is found associated with other hydrocarbons as it is either dissolved in crude oil or trapped as gas in crude oil. This natural gas is typically extracted from oil fields
British thermal unit, a quantity of heat required to raise the temperature of one (1) pound (Le., 0.454 kg) of water from 39·Fahrenheit to 40″Fahrenheit (Le., 3.9·Celcius to 4.4·Celcius) and is equivalent to about 1,055 joules of energy
A hydrocarbon with the molecular formula C4H1Q, with four (4) carbon and 10 hydrogen molecules, which is a colourless and odourless gas that is extracted from natural gas and refinery gas stream
Combined heat and power, an energy efficient system that generates electricity (and/or mechanical energy) and thermal energy with a single fuel source
Compressed natural gas
It is a mixture of hydrocarbon liquids that generally occurs in association with natural gas
A unit of volume corresponding to a cube with the dimensions of one (1) foot (Le., 0.3048 metre) in height by one (1) foot in width and by one (1) foot in depth
A hydrocarbon with the molecular formula C2H6, with two (2) carbon and six (6) hydrogen molecules, which is a colourless and odourless gas extracted from natural gas and refinery gas streams
A chemical compound consisting entirely of hydrogen and carbon molecules
Kilometre, a unit of length measuring 1,000 metres
A thousand tonnes of oil equivalent. A tonne of oil equivalent is a conventional standardised unit of energy and is defined on the basis of a tonne of oil having a net calorific value of 41,686 kilo joule per kilogramme
A ratio of 1,000 tonnes of oil equivalent over one (1) metric tonne.
A hydrocarbon with the molecular formula CH4, with one (1) carbon and four (4) hydrogen molecules, which is a colourless and odourless gas that is extracted from natural gas and refinery gas stream
Medium fuel oil, a blend of fuel oils that is either grade number four (4) or grade number five (5) with a boiling point, carbon chain length, and viscosity of the fuel oil that complies with the classification system specified by the American Society for Testing
Million British thermal units
Million cubic feet per day of gas at standard reference temperature of 60·Fahrenheit and pressure of 14.73 psi
A hydrocarbon gas predominantly comprising methane (CH4) and ethane (C2H6). It is a colourless, odourless and non-toxic gas
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I Company No. 240409-T r

GLOSSARY OF TECHNICAL TERMS (Cont’d)
Non-associated gas
Polyethylene
Propane
psi
psig
scf SNG tcf
tonne Natural gas that is practically free of crude oil and other unwanted hydrocarbons and is typically extracted from gas fields
A tough, light, flexible synthetic resin made via polymerization of carbon and hydrogen molecules
A hydrocarbon with the molecular formula C3Ha, with three (3) carbon and eight (8) hydrogen molecules, which is a colourless and odourless gas that is extracted from natural gas and refinery gas stream
Pound per square inch, unit of pressure, which measures a force of one (1) pound force applied to an area of one (1) square inch
Pound-force per square inch gauge, a unit of pressure relative to the surrounding atmosphere
Standard cubic feet
Synthetic or substitute natural gas
Trillion cubic feet
Metric tonne, a unit of mass equivalent to 1,000 kilograms

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