Flow forces acting on particles in the flow in a well and slotted filter

Slotted filters are used for retaining solid particles during the fluid extraction from the well. In the present study a model of slotted filter is considered for hydraulic calculations. The force analysis is done for solid particles (the size is 0.2 (mm)) in a filtration flow in a well with installed slotted filter. Several cases of solid particle motion are observed. The direction of solid particle and the magnitude of net force depend on the flow velocity and fluid production rate. The theoretical analysis shows that types of flow might influence on the slot width.