WELL SAND SEPARATOR Russian patent published in 2012 - IPC E21B43/38 

FIELD: mining.

SUBSTANCE: well sand separator comprises a body, a lower double-sided and intermediate subs with transverse and longitudinal channels and tubes for the descending flow, trap chambers. A part of the lower double-sided sub arranged below the transverse channels is made of large diameter compared to its upper part. At the same time two nets with a spiral between them are placed onto this part of the lower sub, and the external sub is equipped with a trap chamber.

EFFECT: reduced concentration of sand at the outlet from the separator with preservation of device throughput in process of operation.

1 dwg