Abstract
At the last stage of oil field development, the use of sucker rod pumps is widespread. Due to the drop in formation pressure and other reasons, the inflow of fluid into the well is reduced. The efficiency of the pumps decreases, the pump cylinder is not completely filled. To eliminate these obstacles, a new submersible pump has been developed with a intake valve, which opens and closes with the movement of the balance head. In flooded and sandy wells, sand destroys the working parts of the pump, especially the gap between the plunger-cylinder pair, as a result reduced productivity of the pump. The new pump design allows solving the problem by emulsifying part of the product. The operation of the pump is mathematically justified.
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