5.1.6.2.4. gemini_model.well.correlation.techo

Techo single-phase friction factor correlation (Darcy–Weisbach).

The friction coefficient proposed in the publication: “R. Techo, RR. Tickner, R.E. James, An Accurate Equation for the Computation of the Friction Factor for Smooth Pipes from the Reynolds Number, Journal of Applied Mechanics, Vol.32, p.443, 1965.”

Classes

Techo()

Single-phase dp using Darcy–Weisbach with Techo friction correlation.
class gemini_model.well.correlation.techo.Techo[source]

Bases: object

Single-phase dp using Darcy–Weisbach with Techo friction correlation.

static calculate_dp(us_l, rho_l, theta, eta_l, d_tube, K, l_cel)[source]

Calculate single phase pressure drop using Techo correlation.

Parameters:

  • us_l (float) – superficial liquid flow velocity (m/s)

  • rho_l (float) – liquid density (kg/m3)

  • theta (float) – Inclination of 1 cell (rad)

  • eta_l (float) – liquid vicosity (Pa s)

  • d_tube (float) – well diameter of 1 cell (m)

  • K (float) – roughness of 1 cell (m)

  • l_cel (float) – length of 1 cell (m)

Returns:

  • dp_fric (float) – pressure drop due to friction (Pa)

  • dp_grav (float) – pressure drop due to gravity (Pa)