Vertical sand pump

Vertical sand pumps (submersible slurry pumps) are drilling fluid pumps developed for specialized installation requirements. They are suitable for conveying corrosive drilling fluids with suspended particles or other liquid media in similar operating conditions. They are primarily used in special applications such as those with limited installation space and for centrifuge feeding. Currently, four series are available: LSB150, LSB100, LSB80, and LSB50. They are also suitable for both 50Hz and 60Hz power grids.

The vertical sand pump has four major functions in the oilfield drilling solids control system: 

(1) It sends the drilling fluid that has been initially desanded by the mud vibrating screen to the cyclone desander or desilter at a certain pressure and displacement to further reduce the sand content in the drilling fluid; 

(2) It acts as an injection pump to inject drilling fluid into the mud; 

(3) It is a dedicated pump for slurry supply to the centrifuge; 

(4) It cooperates with the jet mixing device to add weight and prepare the drilling fluid. During operation, the vertical sand pump casing is immersed in the drilling fluid, and its seal is a non-contact labyrinth seal, which effectively solves the long-standing problem of sand pump sealing.

Vertical sand pump technical parameters