常用石油单位与缩写

Units and Abbreviations

Units

B Billion

barg 1 bar (gauge) = 14.5 psi

bbl Barrel (6.2898 barrels = 1 m3)

bpd Barrels per day

Bq/kg Bequerels per kilogram (measure of radioactivity)

Bstb Billion standard barrels

cm Centimetre

cm3Cubic centimetre

cm/year Centimetres per year

dB Decibel

dB (A) A weighted unit of sound intensity weighted in favour of frequencies audible to the human ear

dBht(species) A metric for estimating the behavioural effects of noise on marine species dB L AEQ Sound pressure level

dB re. 1 µPa Decibels relative to one micropascal

g Grams

ha Hectare

hr Hour

H s Significant wave height

Hz Hertz (Measure of frequency)

K One thousand (e.g. 500K = 500,000)

keV Kiloelectron volt (one thousand electron volts)

kg Kilograms

km Kilometre

kilometre

km² Square

kNm3Thousand cubic metre at normal conditions

kW Kilowatts

LC50Lethal Concentration 50. The concentration of a chemical which kills 50% of

a sample population.

l Litres

l/hr Litres per hour

m Metres

M Million

m TVD BRT Depth in Metres (True Vertical Depth) (Below the Rotary Table)

m/hour Metres per hour

second

per

m/s Metres

metres

m² Square

metres

m³ Cubic

m3/day Cubic metres per day

m3/hour Cubic metres per hour

barrels

mbbl Thousand

mbgl Meters below ground level

mbpd Thousand barrels per day

mbwd Thousand barrels of water per day

mbwpd Thousand barrels of water per day

Mbopd Thousand barrels of oil per day

µ Microns

µm Micrometers

µg Micrograms

µg/g Micrograms per gram

µg/m3Micrograms per cubic meter

µg/l Micrograms per litre

Pascal

µPa Micro

mg Milligrams

mg/l Milligrams per litre

mg/m3Milligrams per cubic metre

mg/Nm3Milligrams per cubic meter (at normal conditions) ml Millilitres

mm Millimetres

mm/day Millimetres per day

mm/hr Millimetres per hour

mm/month Millimetres per month

standard cubic feet

MMscf Million

standard

cubic feet per day

MMscfd Million

MMBtu Million British thermal units

standard cubic feet

MMscf Million

cubic feet per day

MMscfd Million

standard

MMstb Million standard barrels

second

m/s Metres

per

Mstb/day Thousand barrels per day

Mstbd Thousand barrels per day

MW Megawatt

pH -log

[H+] (Measure of acidity or alkalinity)

10

PM10Particulate matter measuring 10µm in diameter ppb Parts per billion

ppbv Parts per billion by volume

ppm Parts per million

ppmv Parts per million by volume

PSI Pounds per square inch

lb/MMscf Pounds of water per million standard cubic feet 1Q Quarter one (of year)

s Second

scf Standard cubic feet

scf/bbl Standard Cubic Feet per Barrel

Sm³ Standard cubic metres

Sm3/hr Standard cubic metres per hour

tonnes

ktonne Thousand

t Tonnes

t/day Metric tonnes per day

dollars

US$ US

US$M US dollars (Millions)

yr Year

“ Inches

% Percent

%v Percentage by volume

%w Percentage by weight

%ile Percentile

˚C Degrees

centigrade

~ Approximately

than

> Greater

+/- Plus/minus

than

< Less