-In the overall balance of oil reserves of Russia, highparaffin oils (HWO) make up, by different estimations, from 55 to 75%. Asphalt-resinous and paraffin depositions (ARPD) are contained in the composition of oils in almost all oil-producing regions of the Russian Federation (RF). High content of paraffin (more than 6%) is one of the indicators, by which oil is related to the hard-to-recover type. The chemical composition of ARPD depends on the properties of extracted oil, thermo-and hydrodynamic conditions of productive strata, geological and physical peculiarities, the method of development and exploitation of deposits. ARPD accumulation in the air-gas channel of oil-field equipment and on the internal side of pipes leads to the reduction of the system performance, a decrease of the overhaul period and effectiveness of the operation of pump assemblies, an increase of the wear of equipment, electric energy consumption and pressure in the flowlines. In extreme cases, it can result in the well shutdown due to complete overlap of cross-section of tubing string or presence of ARPD in the well pumps. The ARPD is controlled in two directions: prevention or the slowing down of formation of sediments and removal of already formed ARPD. To prevent paraffination of the pump assembly, chemical and physical methods are used, and to remove deposited paraffin -mechanical, thermal, and chemical methods. None of the enumerated methods is free from disadvantages. To prevent depositions, it is expedient to use physical impacts, reducing coalescence of separate particles of hydrocarbonaceous associates. It is proposed using electrolysis of mineralized stratum water and creating electrostatic field with polarity, similar to ARPD particles, as such impacts. Technical realisation of these effects is possible by creation of the electrochemical chain, similar to the one used during cathode protection. Using the method provides unhindered flotation of paraffin crystals to the wellhead without their deposition on the well equipment.
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