brine_prop module

This modules contains functions of brines properties depending on temperature, pressure and salinity

brine_prop.brine_compressibility(t, p, s)[source]

Brine compressibility

Parameters:
  • t – temperature

  • p – pressure

  • s – mineralisation

Returns:

brine compressibility [1/Pa]

brine_prop.c_heat(t, pressure, salt_mass_fraction)[source]

Specific heat of brine.

Parameters:
  • t – temperature in range from 0 to 1000°C

  • pressure – presure in range from 1 to 5000 bar

  • salt_mass_fraction – molar fraction in range from 0 to 1 NaCl

Returns:

specific heat of brine [J/kg*K]

Note

source: T. Driesner 2007, Procedure for binary H2O-NaCl solutions

brine_prop.compressibility(tr, pr, s)[source]

Compressibility

Parameters:
  • t – temperature

  • p – pressure

  • s – mineralisation

Returns:

compressibility [1/Pa]

brine_prop.density(t, pressure, salt_mass_fraction)[source]

Density of brine

Parameters:
  • t – temperature in range from 0 to 1000°C

  • pressure – pressure in range from 1 to 5000 bar

  • salt_mass_fraction – molar fraction in range from 0 to 1 NaCl

Returns

density of brine [kg/(m^3)]

Note

source: T.Driesner & C.A. Heinrich 2007

brine_prop.dp_flow(t, p, s, fi, w, l, d)[source]

Flow pressure drops

Parameters:
  • t – temperature

  • p – pressure

  • s – mineralisation

  • fi – coefficient of pipe roughness

  • w – velocity of brine

  • l – characteristic length

  • d – diameter

Returns

pressure drop [Pa/m]

brine_prop.dyn_viscosity(t, p, s)[source]

Dynamic viscosity of brine

Parameters:
  • t – Temperature in range from 0 to 350°C

  • p – Presure in range from 0.1 to 100 MPa

  • s – Molar fraction in range from 0 to 5 mol/lg NaCl

Returns:

dynamic viscosity of brine [Pa*s]

Note

source: Mao S. & Duan Z. 2009

brine_prop.heat_conduction(t, pr, s)[source]

Heat conduction

Parameters:
  • t – temperature

  • p – pressure

  • s – mineralisation

Returns:

heat conduction [W/(m*K)]

brine_prop.heat_convection(t, p, s, d, w, lch, t_wall)[source]

Heat convection

Parameters:
  • t – temperature

  • p – pressure

  • s – mineralisation

  • d – diameter

  • lch – characteristic length

  • t_wall – temperature of the wall of well

Returns:

heat convection [W/(m^2*K)]