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  2. Oilfield scale inhibition - Wikipedia

    en.wikipedia.org/wiki/Oilfield_scale_inhibition

    Under the right conditions of temperature and/or pressure, H 2 O and CO 2(aq) molecules react to yield carbonic acid (H 2 CO 3) whose solubility increases at low temperature and high pressure. The slightest changes in pressure and temperature dissolves H 2 CO 3(aq) in water according to equation (3) to form hydronium and bicarbonate (HCO 3 − ...

  3. Oil pressure - Wikipedia

    en.wikipedia.org/wiki/Oil_pressure

    Murphy oil pressure gauges with switches that activate on low pressure. Oil pressure is an important factor in the longevity of most internal combustion engines. [1] With a forced lubrication system (invented by Frederick Lanchester), oil is picked up by a positive displacement oil pump and forced through oil galleries (passageways) into bearings, such as the main bearings, big end bearings ...

  4. Oil pump (internal combustion engine) - Wikipedia

    en.wikipedia.org/wiki/Oil_pump_(internal...

    Indications of low oil pressure may be that the warning light is on, a low pressure reading on the gauge, or clattering/clinking noises from the engine. Low oil pressure is a problem that must be addressed immediately to prevent serious damage. The leading cause of low oil pressure in an engine is wear on the engine's vital parts.

  5. Oil well control - Wikipedia

    en.wikipedia.org/wiki/Oil_well_control

    Pump pressure, which is also referred to as system pressure loss, is the sum total of all the pressure losses from the oil well surface equipment, the drill pipe, the drill collar, the drill bit, and annular friction losses around the drill collar and drill pipe. It measures the system pressure loss at the start of the circulating system and ...

  6. Diesel engine runaway - Wikipedia

    en.wikipedia.org/wiki/Diesel_engine_runaway

    Diesel engines can combust a large variety of fuels, including many sorts of oil, petrol, [4] and combustible gases. [5] This means that if there is any type of leak or malfunction that increases the amount of oil or fuel unintentionally entering the combustion chamber, the quality of the air-fuel-mixture will increase, causing torque and ...

  7. Separator (oil production) - Wikipedia

    en.wikipedia.org/wiki/Separator_(oil_production)

    The volume of gas that an oil and gas separator will remove from crude oil is dependent on (1) physical and chemical characteristics of the crude, (2) operating pressure, (3) operating temperature, (4) rate of throughput, (5) size and configuration of the separator, and (6) other factors.

  8. Reduced properties - Wikipedia

    en.wikipedia.org/wiki/Reduced_properties

    The reduced temperature of a fluid is its actual temperature, divided by its critical temperature: [1] = where the actual temperature and critical temperature are expressed in absolute temperature scales (either Kelvin or Rankine). Both the reduced temperature and the reduced pressure are often used in thermodynamical formulas like the Peng ...

  9. Base conditions - Wikipedia

    en.wikipedia.org/wiki/Base_conditions

    The density of a gas at a specific pressure can be estimated by using the ideal gas law. Doubling absolute pressure doubles the density of a gas, and doubling absolute temperature halves the density. The number of molecules in a given gas volume depends on the pressure and temperature. This is why the pressure and temperature must be stated in ...