STUDY OF THE PERFORMANCE OF THE DYNAMIC LEVEL STABILIZATION SYSTEM OPERATION IN THE WELLBORE EQUIPPED WITH AN ELECTRICAL SUBMERSIBLE PUMP UNIT

Link for citation: Totanov A.S., Molchanova V.A., Urazakov K.R. Study of the performance dynamic level stabilization system operation in wellbore equipped with an electrical submersible pump unit. Bulletin Tomsk Polytechnic University. Geo Аssets Engineering, 2023, vol. 334, no. 8, рр. 210-219. In Rus. The relevance study is related to widespread use units production low-viscosity oils and water-gas-oil emulsions at this stage development mechanized production. However, current conditions associated changing reservoir parameters bring fore a number technical problems that need be solved. One these challenges phenomenon which well decreases due changes (reservoir pressure, productivity factor, etc.). Decrease liquid leads complications during units. As consequence, increased cavitation impellers possible pressure reduction on intake, also full supply failure not excluded significant borehole fluid. relation, solution, consisting installation bypass device (electrical valve) above place suspension plant maintain stable avoid operation, was suggested. To confirm feasibility system, mathematical model developed evaluate effectiveness complication prevention help proposed solution electric centrifugal main aim research develop calculation method studying dynamics system. Objects: unit conjunction stabilizing well. influence diameter length valve efficiency recovery studied, taking into account hydraulic losses operation. Methods. reduced numerical differential, linear non-linear equations describing flow outlet steady-state mode, fluid through resistances, hydrodynamic processes annular space change depending design valve. Results. Effect – section pump, as impact properties, namely its viscosity intensity restoration studied. It found when increased, more intensive observed resistance cavity. Similarly, it increase length, liquid, coefficient respectively.