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  2. Barrel of oil equivalent - Wikipedia

    en.wikipedia.org/wiki/Barrel_of_oil_equivalent

    Metric regions commonly use the tonne of oil equivalent (toe), or more often million toe (Mtoe). Since this is a measurement of mass, any conversion to barrels of oil equivalent depends on the density of the oil in question, as well as the energy content. Typically 1 tonne of oil has a volume of 1.08 to 1.19 cubic metres (6.8 to 7.5 bbl).

  3. Nelson complexity index - Wikipedia

    en.wikipedia.org/wiki/Nelson_complexity_index

    Flows in a very complex oil refinery. The Nelson complexity index (NCI) is a measure to compare the secondary conversion capacity of a petroleum refinery with the primary distillation capacity. [1] The index provides an easy metric for quantifying and ranking the complexity of various refineries and units. [2]

  4. Shell plc - Wikipedia

    en.wikipedia.org/wiki/Shell_plc

    Still in the early 1960s, Shell covered about 20% of the Italian oil needs. [151] The Italian Shell was the first company to be advertised with Carosello. [153] [154] In 1959 the company purchased the former Condor refinery of Rho and in 1967 it built a large plant in Taranto, [151] whose works began in 1964 with an initial investment of 25 ...

  5. Volume units used in petroleum engineering - Wikipedia

    en.wikipedia.org/wiki/Volume_units_used_in...

    Oil conversion factor from m³ to bbl (or stb) is 6.28981100 Gas conversion factor from standard m³ to scf is 35.314666721 Note that the m³ gas conversion factor takes into account a difference in the standard temperature base for measurement of gas volumes in metric and imperial units.

  6. World energy supply and consumption - Wikipedia

    en.wikipedia.org/wiki/World_energy_supply_and...

    The table lists worldwide PE and the countries producing most (76%) of that in 2021, using Enerdata. The amounts are rounded and given in million tonnes of oil equivalent per year (1 Mtoe = 11.63 TWh (41.9 petajoules), where 1 TWh = 10 9 kWh) and % of Total. Renewable is Biomass plus Heat plus renewable percentage of Electricity production ...

  7. SAE J300 - Wikipedia

    en.wikipedia.org/wiki/SAE_J300

    The oil fails the test at a particular temperature if the oil is too viscous. The grade of the oil is that associated with the coldest temperature at which the oil passes the test. For example, if an oil passes at the specified temperatures for 10W and 5W, but fails at the 0W temperature, the oil is grade 5W. It cannot be labeled 0W or 10W.

  8. List of countries by oil production - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_oil...

    Top 5 oil-producing countries 1980–2022 World oil production This is a list of countries by oil production (i.e., petroleum production), as compiled from the U.S. Energy Information Administration database for calendar year 2023, tabulating all countries on a comparable best-estimate basis.

  9. Tonne of oil equivalent - Wikipedia

    en.wikipedia.org/wiki/Tonne_of_oil_equivalent

    The tonne of oil equivalent (toe) is a unit of energy defined as the amount of energy released by burning one tonne of crude oil. It is approximately 42 gigajoules or 11.630 megawatt-hours , although as different crude oils have different calorific values , the exact value is defined by convention; several slightly different definitions exist.