BUBBLE GAS LIFT SYSTEM AND BUBBLE GAS LIFT METHOD Russian patent published in 2016 - IPC F04F1/20 E21C50/00 

FIELD: gas industry.

SUBSTANCE: group of inventions relates to lifting of solid material from bottom of basin, such as deep sea, lake or river, above water surface. In bubble gas lift system (10) in upper end section of lifting pipeline (11) is arranged under pressure chamber (21). Chamber generates pressure in upper section of pipeline (11) in order to suppress increase in volume ratio of bubbles to mixed fluid extending inside pipeline (11), in shallow region. Upper end of pipeline (11) is not opened into atmosphere, but is introduced into pressurised chamber (21), so as to prevent expansion of gas bubbles. Deaerator (14) for removing bubbles, separated by centrifugal force, is also provided in median section of pipeline (11) in shallow area to provide more uniform distribution of bubbles within entire pipeline (11).

EFFECT: inventions are aimed at providing efficient gas-lift system of target material in form of suspension, having a higher specific weight than surrounding water, which makes system and method efficient and operational even in a deep water area.

12 cl, 5 dwg