EJECTOR PUMP Russian patent published in 2005 - IPC

FIELD: oil producing industry.

SUBSTANCE: pump is designed for pumping different composite fluids into wells. Proposed pump includes housing, branch pipe for delivering ejecting fluid connected with housing, inlet branch pipe for delivering ejectable fluid arranged in housing, bushing one part of inner surface of which form ring nozzle with part of outer surface of branch pipe for delivering ejectable fluid and coupled with branch pipe for delivering ejecting fluid, and other part of free inner space of bushing forms mixing chamber. It has also diffuser connected with mixing chamber, and pipeline to let out mixture of ejecting and ejectable fluids. Inner diameter of branch pipe for delivering ejectable fluid is equal to 0.15-0.32 of inner diameter of pipeline to let out mixture of ejecting and ejectable fluids. Length of mixing chamber is 3 - 6-fold greater than working section of ring nozzle, and angle of diffuser is form 2 to 20 degrees.

EFFECT: increased efficiency.

2 cl, 1 dwg