Petroleum PPT - Petroleum Nicholas J. Pocknall Petroleum...

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Petroleum Nicholas J. Pocknall
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Petroleum – the what and how Petroleum – oily, flammable liquid that occurs naturally in deposits, usually beneath the surface of the earth; it is also called crude oil . Consists mostly of hydrocarbons, with traces of various nitrogenous and sulfurous compounds. During the past 600 years decaying plant and animal remains are largely responsible for the relatively high organic carbon content of fine grained sediments like the Chattanooga shale which are the principle source rocks for petroleum.
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Exploration and Drilling The subterranean origin of petroleum must be extracted by means of wells. Until exploratory wells have been dug out there is no sure way to know if oil is below. To reduce number of wells drilled, scientific methods and instruments are used to locate the source. Instruments such as the gravimeter, magnetometer, and seismographs. Drilling is fairly complex and often a risky process. Some wells must be drilled several miles deep into the earths crust before any sort of petroleum deposits are found.
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Composition and Refining The physical properties and exact chemical composition of oil varies from one locality to the next. Different hydrocarbons found in petroleum that are then dissolved are natural gas, gasoline, benzene, naphtha, kerosene. All of these hydrocarbons are separated from each other by various ways of the refining process. Fractional distillation: petroleum is heated up and sent into a tower to be refined. The vapors of different components condense on collectors at different levels of the tower.
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Brief History Petroleum has been known throughout historical time, used in mortar for coating wall and boat hulls. Native Americans used it in magic and medicine and in making paints. Pioneers bought it from Native
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This note was uploaded on 03/27/2008 for the course GEOGRAPHY 3303 taught by Professor Carter during the Spring '08 term at Texas State.

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Petroleum PPT - Petroleum Nicholas J. Pocknall Petroleum...

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