SLOTTED FILTER WITH WIRED FILTRATING ELEMENT Russian patent published in 2010 - IPC E21B43/08 

FIELD: mining.

SUBSTANCE: invention related to mining, particularly to oil-and-gas production and can be used for oil and gas wells development. Slotted filter with wired filtrating element includes perforated pipe with nipple and sleeve parts, concentrically to which executed filtrating element made of spirally reeled wire, connected to wire longitude stringers. At that spiral wire placed loop by loop, at least at one of the wire touching sides tangential or crossing notch, creating filtrating slot executed.

EFFECT: manufacturing simplification and filters mudding decrease during oil and gas production.

5 cl, 15 dwg