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  2. Pore pressure gradient - Wikipedia

    en.wikipedia.org/wiki/Pore_pressure_gradient

    Saltwater is 0.444 psi/ft (2.5% higher than fresh water but this not general and depends on salt concentration in water) Pore pressure in the rock could be as high as 1.0 psi/ft of depth (19.25 lb/gal) A well with 5,000 feet of seawater and 15,000 feet of rock could have an overburden pressures at the bottom as high as 17,220 psi (5000 * 0.444 ...

  3. List of conversion factors - Wikipedia

    en.wikipedia.org/wiki/List_of_conversion_factors

    pound (avoirdupois) per cubic foot lb/ft 3: ≡ lb/ft 3: ≈ 16.018 463 37 kg/m 3: pound (avoirdupois) per cubic inch lb/in 3: ≡ lb/in 3: ≈ 2.767 990 471 × 10 4 kg/m 3: pound (avoirdupois) per gallon (imperial) lb/gallb/gal ≈ 99.776 372 66 kg/m 3: pound (avoirdupois) per gallon (US fluid) lb/gallb/gal ≈ 119.826 4273 kg/m 3 ...

  4. Module:Convert/documentation/conversion data - Wikipedia

    en.wikipedia.org/wiki/Module:Convert/...

    For example, if a unit has the symbol "imp gal", and if the link is @[[Gallon]], then if the symbol is linked, it would appear as "imp gal" ("imp" and "gal" link two different articles). The Links section defines exceptions for unit codes with an SI prefix, where the linked article is different from that of the base unit.

  5. Specific weight - Wikipedia

    en.wikipedia.org/wiki/Specific_weight

    The specific weight, also known as the unit weight (symbol γ, the Greek letter gamma), is a volume-specific quantity defined as the weight W divided by the volume V of a material: = / Equivalently, it may also be formulated as the product of density, ρ, and gravity acceleration, g: = Its unit of measurement in the International System of Units (SI) is newton per cubic metre (N/m 3), with ...

  6. Pressure gradient - Wikipedia

    en.wikipedia.org/wiki/Pressure_gradient

    In petroleum geology and the petrochemical sciences pertaining to oil wells, and more specifically within hydrostatics, pressure gradients refer to the gradient of vertical pressure in a column of fluid within a wellbore and are generally expressed in pounds per square inch per foot (psi/ft). This column of fluid is subject to the compound ...

  7. Everything you can clean with a steam cleaner - AOL

    www.aol.com/news/everything-clean-steam-cleaner...

    The canister model has a double-boiler system which “gives you steady heat at all time, plus the bar pressure or PSI (pounds per square inch) is powerful enough to remove debris,” according to ...

  8. Well control - Wikipedia

    en.wikipedia.org/wiki/Well_control

    Fluids exert pressure, and this pressure comes from the density and height of the fluid column. Oil companies typically measure density in pounds per gallon (ppg) or kilograms per cubic meter (kg/m 3) and pressure measurement in pounds per square inch (psi) or bar or pascal (Pa). Pressure increases with fluid density.

  9. Estimated pore pressure - Wikipedia

    en.wikipedia.org/wiki/Estimated_pore_pressure

    In the oil industry, estimated pore pressure is measured in pounds per square inch (psi), but is converted to equivalent mud weight and measured in pounds per gallon (lb/gal) to more easily determine the amount of mud weight required to prevent the fluid or gas from escaping and causing a blowout or wellbore failure.