Centrifugal Pumps Type CNP for Efficient Oil Extraction and Water Injection

centrifugal pumps designed to work as part of pumping units for oil production and water injection into the reservoir (hereinafter - pumps). The pumped liquid is a mixture of oil, associated water, mineral impurities and oil gas and has the following characteristics:
1) maximum density, kg/m31400;
2) hydrogen index of associated fluid pH
for basic design5,0 - 8,5;
for corrosion-resistant modification3,0-9,0;
Short-term (up to 6 hours) decrease of pH to 0 is allowed.
3) maximum kinematic viscosity of single-phase liquid, at which the pump operation is provided without changing the head and efficiency, 1 mm2/sec