Centrifugal pumps

Насосы центробежные

The centrifugal pumps are used for pumping out formation fluid (oil, associated water, associated gas) from oil wells with deflection angle in the place of suspension not more than 60°.

The centrifugal pumps consist of the following assembly units:

  • lower section (including input module);
  • upper section (including check valve and drain valve, sludge trap);
  • one or several intermediate sections.

Medium where centrifugal pumps are to be operated

Parameter Unit of measurement Value for modification
standard heat-resistant wear-resistant heat- and wear-resistant
Maximum density of formation fluid kg/m3 1400 1400 1400 1400
Maximum kinematical viscosity of single-phase fluid, for which pump may be operated without change of its head and efficiency mm2/s 1 1 1 1
Maximum mass concentration of solid particles (with relative hardness not more than 5 points by Mohs scale) g/l 0,2 0,2 1 1
Maximum content of associated gas (by volume) at intake of pumps of modifications differing by availability of unit acting on gas fraction - % 25 25 25 25
G 55 55 55 55
D 40 40 40 40
Maximum concentration of hydrogen sulfide g/l 0,05 0,05 1,25 1,25
Maximum temperature of pumped fluid °С 90 120 90 120
Maximum content of associated water % 99 99 99 99
Hydrogen index of associated water pH 6,0÷8,5 6,0÷8,5 6,0÷8,5 6,0÷8,5

Note: On the Customer's request, special versions of centrifugal pumps may be manufactured – pumps with maximum temperature of pumped fluid of 150 °С, as well as corrosion-resistant pumps.

Range of manufactured centrifugal pumps

The centrifugal pumps are manufacture with housing diameter of 92 mm and rated delivery of 50, 80 and 125 m3/day.

Range of heads of centrifugal pumps with rated delivery of 50 m3/day: 1400 to 3050 m.

Range of heads of centrifugal pumps with rated delivery of 80 m3/day: 1300 to 2950 m.

Range of heads of centrifugal pumps with rated delivery of 125 m3/day: 1100 to 2500 m.

Note: On the Customer's request, the centrifugal pumps with extended scale of heads and for other deliveries may be manufactured.