... скважине. At present time the amount of light oil in our country decreases, and the share of more viscous and heavy oil from total amount of production becomes more and more. In this article influence of viscous liquid on performance of the electrical submersible pump (ESP) is considered. As at operation of the electrical ubmersible pumps operating staff know only the pump performance during the work on water, they should make recalculation of pump performance taking into account conditions ...

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