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Definitions (141)

1

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workover plant


usually a mobile facility with a derrick, prime mover and other facilities and devices; used for well testing and completion, equipment installation and servicing the reservoir and the layers/beds in the reservoir.
Source: ina.hr (offline)

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wheel grease


grease for oiling axles of horse-drawn and other vehicles; in the past, a product of simple refining of heavy petroleum from natural sources.
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well


hole drilled in the ground or underground; geotechnical or mining facility used for the exploration and recovery of raw material or water, soil exploration etc.     
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water station


(WS), facility on an oil/petroleum field where water is prepared for secondary methods and where it is injected through a well into the reservoir by compression pumps.
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visbreaking


breaking of viscosity; reduction of viscosity by cracking big molecules of hydrocarbons at high temperatures without the presence of a catalyst.
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virgin naphtha


hydrocarbons with start and end of distillation at 70–180 o
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treatment of natural gas for transport


the technological operation of producing natural gas on oil/petroleum and gas fields; water, gas condensate, harmful admixtures in the natural gas and damp are separated from the mixture of natural gas, gas condensate and water, and the natural gas is delivered for further treatment (degassing), storage or directly for consumption.
Source: ina.hr (offline)

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terrestrial gas


(water gas, swamp gas). Gas of biogenic origin resulting from the decomposition of organic matter in shallow beds, as well as on dumps, in swamps, etc. ; usually only methane (CH4); when it comes to the surface, it fades into the atmosphere; common name for natural gas.
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technical gases


gases for miscellaneous industrial use which is not related to energy, medicine, traffic, laboratories, etc.: oxygen, argon, nitrogen, hydrogen, carbon dioxide, acetylene, helium, etc; mostly delivered under pressure in steel cylinders, then in special tanks, and some liquefied.
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tar


the term ‘natural tar’ is sometimes used for heavy petroleum (bitumen) that has penetrated to the surface of the Earth; heavy residues discharged from gases during gasification of coal and wood, feedstock for chemical industry; deposits in chimneys where furnaces are fed with coal or wood.
Source: ina.hr (offline)


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