Page tree

Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

Chart Oil correlations based on USA samples.

The corresponding regression equations are found in Standing (1981).


Dead oil viscosity

μodcpp > pb

LaTeX Math Inline
body--uriencoded--\displaystyle \mu_%7Bod%7D(T) = \left( c_1 + c_2 \, \gamma_%7BAPI%7D%5e%7Bc_3%7D \right) \left( \frac%7Bc_4%7D%7BT+c_5%7D \right)%5eX

LaTeX Math Inline
body--uriencoded--\log_%7B10%7D X = c_6 + \frac%7Bc_7%7D%7B\gamma_%7BAPI%7D%7D

LaTeX Math Inline
body--uriencoded--c_1 = 0.32, \ c_2 = 1.8 \cdot 10%5e7, \ c_3 = - 4.53, \ c_4 =360, \ c_5 = -260, \ c_6 = 0.43, \ c_7 = 8.33


Undersaturated oil viscosity

μocpp > pb

LaTeX Math Inline
body--uriencoded--\displaystyle \mu_o(p) = \mu_%7Bob%7D + c_1 \, (p-p_b) \, \big [ c_2 \, \mu_%7Bob%7D%5e%7Bc_3%7D + c_4 \, \mu_%7Bob%7D%5e%7Bc_5%7D \big ]

LaTeX Math Inline
bodyc_1 = 0.001, \ c_2 = 0.024, \ c_3 = 1.6, \ c_4 = 0.038, \ c_5 = 0.56

where

Location

California/ Mid-Continent

LaTeX Math Inline
body--uriencoded--\mu_%7Bob%7D

cpoil viscosity at bubble point pressure pb

LaTeX Math Inline
bodyT

°FFluid temperature

LaTeX Math Inline
bodyp

psiaFluid pressure

LaTeX Math Inline
bodyp_b

psiaBubble point pressure

LaTeX Math Inline
body--uriencoded--\gamma_%7BAPI%7D

°APIOil API gravity

See Also


Petroleum Industry / Upstream / Petroleum Engineering / Subsurface E&P Disciplines / Reservoir Engineering (RE) / PVT correlations / Oil correlations


References


Beal, C., 1946. The viscosity of air, water, natural gas, crude oils and its associated gases at oil field temperatures and pressures. Trans. AIME 165, 94–112

Standing, Marshall Burton. Volumetric and phase behavior of oil field hydrocarbon systems. Society of petroleum engineers of AIME, 1981