METHOD OF TRANSPORTING OIL VIA PIPELINE WITH IMPLEMENTATION OF ANTI-TURBULENT ADDITIVE Russian patent published in 2009 - IPC F17D1/16 F16L55/04 

FIELD: oil and gas industry.

SUBSTANCE: coefficient of hydraulic resistance of pipeline λ_tpl (transporting pipeline) for transporting mode and for concentration of introduced additive Θ preceding hydro-shock is evaluated; effect of raise of inertia constituent of pressure conditioned by Thoms effect is considered; distribution of pressure in pipeline under conditions of hydraulic shock on dependence is calculated; above said pressure value is compared to accepted value P_acc; in case Px>P_acc, either volume of introduced additive is decreased to concentration 9, eliminating said excess of hydraulic shock above accepted, or damper of hydraulic shock is installed near source of hydro-shock, where P_(x) is distribution of pressure in pipeline under conditions of hydraulic shock, P_st(x) is preceding hydro-shock stationary pressure distribution along pipeline length, ρ is oil density, s - sound speed in pipeline, k - coefficient considering alteration of speed in point of hydraulic shock occurring, W₀ - is flow speed before hydro-shock, λ_tpl is coefficient of hydraulic resistance in pipeline at transporting oil with additive of preset concentration, Q is oil consumption in pipeline before hydraulic shock, x is length of pipeline from source of hydro-shock, d is pipeline diameter, is Reinold's number, ν is kinematic viscosity.

EFFECT: increased reliability and efficiency of oil transporting via pipeline due to eliminating hazardous situations caused by stops of oil-transfer stations by means of regulating amount of introduced anti-turbulent additive into flow of transported oil.