DEVICE FOR REMOVING LIQUID FROM BOTTOM HOLE OF GAS WELL Russian patent published in 1998 - IPC

FIELD: gas production industry. SUBSTANCE: this can be used for stabilization of gas output from wells. Device has string of lift pipes in which uniformly located are vortex nozzles made up of sleeve and spiral blades. Upper part of sleeve has thickened portion which is clamped between end faces of lift pipes in couping unit. Vortex nozzle is of height H, where inner diameter D and bore hole diameter d are found in following geometric proportion: H: D:d = 3:1.5:1. Application of aforesaid device cuts pressure loss in lift pipe due to formation of moving film-like layer of separated liquid induced by action of vortex nozzles. EFFECT: higher efficiency. 3 dwg