ENGLISH - Gassco

Facts about gas
Many terms and expressions are used for oil and gas. Petroleum is a collective designation for hydrocarbons,
whether solid, liquid or gaseous.
Gscm
Giga standard cubic metres – one billion cubic
metres of gas at 0.01325 bar and 15°C.
CNG
Compressed natural gas.
LNG
Liquefied natural gas, primarily methane, which
has been converted to liquid by cooling to -163°C
at atmospheric pressure. One tonne of LNG
corresponds to roughly 1 400 scm of gas.
LPG
Liquefied petroleum gases. Consist primarily of
propane and butanes. They are obtained at Kårstø
through fractionation and cooling.
Natural gas
Petroleum components (fractions) which primarily
comprise light hydrocarbons. These can be divided
into dry gas and NGL (see below). Also known as
sales gas, dry gas consists largely of methane but
can often contain a certain proportion of ethane
and small quantities of heavier hydrocarbons.
Condensate
Embraces the heavier fractions in natural gas,
such as pentane, hexane and heptane.
Condensate is liquid under atmospheric pressure
and temperature.
Naphtha (natural gasoline)
A volatile condensate which contains less of the
heaviest fractions.
NGL
Natural gas liquids. Comprise the heavier gases
ethane, propane and butane as well as small
amounts of pentane, hexane and heptane.
ncm
Normal cubic metre at a reference condition of
0°C and 1.01325 bar.
oe
Oil equivalent. Oil and gas are often quantified as
oil equivalent. As a rule of thumb, one tonne oe =
one tonne of oil = 1 100 scm of sales gas.
smc
Standard cubic metre at a reference condition of
15°C and 1.01325 bar.