... сократить количество отказов глубинно-насосного оборудования по причине слома вала, повысить эффективность эксплуатации УЭЦН. The paper explores ESP shaft failures, occurring in difficult wells. It also presents protection technology for downhole pumping equipment to prevent failures. Materials and methods Review of well operation modes, chemical and metallographic study of ESPs with broken shafts....

... with standard systems manometers and analysis of the composition, provide complete information on the work of recovery. The resulting information allows to perform: • selection of optimal operation of well equipment; • retention and prevention of ESP performance in "extreme" conditions; • identification of changes in the reservoir in real time; • identification of problems in the well (leaks, casing flows); • monitoring of the well during the entire overhaul period. Сonclusions ...

... ВВЭ. Significant losses in theoil-producing companies associatedwith the loss of oil production wellsin circulation due to the formationof asphalt-resin-paraffin deposits(AFS) and the need for unscheduledrepairs. Number of ORS does not decrease,despite regular maintenance work.The consequence of this complicationis to reduce flow rate, overload SEM, oftenas a consequence — to overheat, reducingisolation and burnout ESP power cable. Materials and methods PGI installation programof NKLS-Energy ...

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