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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. Template:Convert/list of units - Wikipedia

    en.wikipedia.org/wiki/Template:Convert/list_of_units

    lb.ft lbft 1.0 lbft (1.4 N⋅m) lb.ft Nm; lb.ft kg-m; Scientific: SI: newton-metre: N.m N⋅m Triple combinations are also possible. See the full list. 1.0 N⋅m (0.74 lbf⋅ft) N.m kgf.m; N.m lbf.ft; Non-SI metric: kilogram force-metre: kgf.m kgf⋅m 1.0 kgf⋅m (9.8 N⋅m; 7.2 lbf⋅ft) kgf.m N.m; kgf.m lbf.ft; Imperial & US customary ...

  4. Comparison of the imperial and US customary measurement systems

    en.wikipedia.org/wiki/Comparison_of_the_imperial...

    ≡ 2 US dry pt ≡ 0.25 US dry gal ≡ 1 101.220 942 715 mL ≡ 1.101 220 942 715 L. gallons Imperial gallon (gal) ≡ 160 imp fl oz ≡ 4 imp qt ≡ 1 imp gal. ≈ 153.721 590 465 US fl oz ≈ 151.536 333 333 US fl oz (food) ≈ 1.200 949 925 50 US gal. ≈ 4.128 226 973 95 US dry qt ≈ 1.032 056 743 49 US dry gal

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

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

    See WP:MOSNUM#Unit names and the discussion, and see Pound-foot (torque) and Foot-pound (energy). However, some topics use traditional units that conflict with the above convention. To handle these, Module:Convert/makeunits includes a specials table that adds an "alttype" (alternate type) field to certain whitelisted units.

  6. Template:Convert - Wikipedia

    en.wikipedia.org/wiki/Template:Convert

    Converts measurements to other units. Template parameters [Edit template data] This template prefers inline formatting of parameters. Parameter Description Type Status Value 1 The value to convert. Number required From unit 2 The unit for the provided value. Suggested values km2 m2 cm2 mm2 ha sqmi acre sqyd sqft sqin km m cm mm mi yd ft in kg g mg lb oz m/s km/h mph K C F m3 cm3 mm3 L mL cuft ...

  7. 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 ...

  8. United States customary units - Wikipedia

    en.wikipedia.org/wiki/United_States_customary_units

    1 pound per square inch (psi) ≈ 6,895 Pa; Torque 1 pound-foot ≈ 1.356 N⋅m; Insulation 1 R-value (ft 2 ⋅°F⋅h/Btu) ≈ 0.1761 R SI (K⋅m 2 /W) Various combination units are in common use; these are straightforwardly defined based on the above basic units. Sizing systems are used for various items in commerce, several of which are U.S ...

  9. Inch of water - Wikipedia

    en.wikipedia.org/wiki/Inch_of_water

    It is defined as the pressure exerted by a column of water of 1 inch in height at defined conditions. At a temperature of 4 °C (39.2 °F) pure water has its highest density (1000 kg/m 3 ). At that temperature and assuming the standard acceleration of gravity , 1 inAq is approximately 249.082 pascals (0.0361263 psi ).