METHOD OF REGULATING WELL OPERATION IN REGARD TO INITIAL WATER SEPARATION Russian patent published in 2015 - IPC E21B43/12 B01D17/02 

FIELD: oil and gas industry.

SUBSTANCE: method includes measuring oil and water density, delivering raw oil with associated gas to the well killed by a packer through a spool, measuring quantity of delivered raw oil with associated gas as well as water-cut of raw oil, determining quantity of delivered dehydrated oil, discharging partially dehydrated oil and associated gas from annular space of the well, removing discharged water through inner annulus, measuring quantity of discharged water, measuring pressure of raw oil with associated gas at the well input, pressure of partially dehydrated oil with associated gas at the output from annular space of the well and pressure of discharged water at the output from inner annulus. Regulation is carried out by changing square area of the flow areas at the well input, at the output from annular space and at the output from inner annulus, for example, by means of gates, wherein at one or more of the above areas integral water-cut and height of these areas is measured, volumes of these areas are measured, quantity of dehydrated oil is calculated for these areas and compared with quantity of dehydrated oil delivered to the well.

EFFECT: improved reliability of the well operation control.

3 cl, 1 dwg