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

FIELD: gas production industry. SUBSTANCE: this relates to devices intended for intensification of gas recovery from wells due to dispersing of accumulated liquid in bottom hole. Device allows for dispersing of liquid at minimal velocities of gas in disperser space at boundary of difference in velocities of mixing main gas flow with circulation flow created due to ejection phenomenon around flow mixing pipe union. Device has hollow disperser which is made up of nozzle having serrated-like perimeter at outlet. Located concentrically above aforesaid nozzle is mixing pipe union which creates circular spaces in combination with nozzle and with inner wall of lift pipe. Device is installed in coupling joint of lift pipe string. Cylindrical part of nozzle has perforations for withdrawing liquid from blind space formed between nozzle and wall of lift pipe. EFFECT: higher efficiency. 1 dwg