APPARATUS TO OPERATE SLANTINGLY DIRECTED BOREHOLE Russian patent published in 1995 - IPC

FIELD: oil extraction. SUBSTANCE: apparatus has centralizer 6, mounted on pump pole 5 with capability to turn. Centralizer has longitudinal -shaped through groove. Scrubbers 8 and 9 are mounted and rigidly fixed on pump pole 5 under and over centralizer. Scrubbers body is made of two half-yokes joined by welding. Scrubbers have diametrically located ribs, spaced from each other at least by diameter of centralizer 6. Scrubbers butts have tail-end 14 to be located in 1@-shaped groove 7 of centralizer 6. During rotation of poles column scrubbers, using tail-end turn centralizers 6, decreasing wear-and-tear of poles and pump-compressing pipes 1. EFFECT: apparatus to operate slantingly directed borehole is used to drill oil extracting slantingly directed boreholes. 2 cl, 6 dwg