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|
|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.