METHOD FOR DETERMINING HYDRAULIC RESISTANCE COEFFICIENT IN GAS WELL BORE Russian patent published in 2017 - IPC E21B43/00 E21B47/00 

FIELD: oil and gas industry.

SUBSTANCE: method involves measuring, during gas-hydrodynamic survey of a well with bottom-hole pressure gauges and thermometers and/or bottom-hole pressure measuring systems of pressure R_z.gis and gas temperature T_L at the bottom hole with a depth L, and also of the gas flow rate (flow rate) of the well Q_gis, pressure R_u.gis and gas temperature G_u.gis at the wellmouth with the subsequent determination of the hydraulic resistance coefficient by the experimental data obtained by analytical means. Upon the completion of gas-hydrodynamic survey of the well and putting it into operation using the telemetry of gas well clusters, measuring the pressure R_u, temperature T_u and gas flow Q of the well is performed at the wellmouth with a predetermined sample time interval and these values are transferred to the automated process control system of the gas complex/pre-treatment unit that uses these values to determine the current value of the hydraulic resistance coefficient λ_f of the wellbore by a mathematical formula.

EFFECT: increased accuracy of determining the coefficient of hydraulic resistance λ_f in gas wellbores and control of its dynamics in real time.

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