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Factorio is a construction and management simulation game developed and published by Czech studio Wube Software. The game was announced via an Indiegogo crowdfunding campaign in 2013 and released for Windows , macOS , and Linux on 14 August 2020 following an early access phase, which was made available on 25 February 2016.
Energy portal; Crack spread is a term used on the oil industry and futures trading for the differential between the price of crude oil and petroleum products extracted from it. . The spread approximates the profit margin that an oil refinery can expect to make by "cracking" the long-chain hydrocarbons of crude oil into useful shorter-chain petroleum produc
Oil depletion is the decline in oil production of a well, oil field, or geographic area. [1] The Hubbert peak theory makes predictions of production rates based on prior discovery rates and anticipated production rates. Hubbert curves predict that the production curves of non-renewing resources approximate a bell curve.
U.S. Energy Information Administration: World Crude Oil Prices Archived 2008-11-10 at the Wayback Machine; BP Crude Grades; Intertek: Crude Oil Grades and Types; MeGlobalOil: Carriage of Heavy Grade Oil; Statoil.com: Crude oil assays; EnergyIntel.com: The Crude Oils and their Key Characteristics; Capline system crude oil properties and quality ...
A simplistic interpretation of the ratio has led to many false predictions of imminent "running out of oil" since the early years of the oil industry in the 1800s. This has been especially true in the United States, where the ratio of proved reserves-to-production has been between 8 years and 17 years since 1920.
(The data below does not seem to include shale oil and other unconventional sources of oil such as tar sands. For instance, North America has over 3 trillion barrels of shale oil reserves, [ citation needed ] and the majority of oil produced in the US is from shale, leading to the paradoxical data below that the US will finish all its oil at ...
The feedstock to the FCC conversion process usually is heavy gas oil (HGO), which is that portion of the petroleum (crude oil) that has an initial boiling-point temperature of 340 °C (644 °F) or higher, at atmospheric pressure, and that has an average molecular weight that ranges from about 200 to 600 or higher; heavy gas oil also is known as ...
The standard Hubbert curve.For applications, the x and y scales are replaced by time and production scales. U.S. Oil Production and Imports 1910 to 2012. In 1956, Hubbert proposed that fossil fuel production in a given region over time would follow a roughly bell-shaped curve without giving a precise formula; he later used the Hubbert curve, the derivative of the logistic curve, [6] [7] for ...