GASSY AND NON-GASSY LIQUID PRODUCTION PLANT Russian patent published in 2013 - IPC F04B47/02 F04B19/14 

FIELD: machine building.

SUBSTANCE: plant includes working cylinders 6, pistons 8 and tubing string 4. Working cylinders 6 are fixed between joints of the tubing through a certain distance depending on design working pressure in the tubing. Pistons 8 are attached to chain 7 throughout the length movably looped through sealed chain drive 17, with lifting 22, lowering 23 and tension 24 pulleys, guide pipeline 12, receiving filtering chamber 10, through guide pulley 9, through working cylinders 6 and tubing string 4 attached through the guide pipeline between each other and tightly connected to load-carrying flange 14 of a borehole pump. Continuous lifting of liquid is performed from high and low depths, with large content of associated gas from low flow rate wells, including due to constant movement speed of the chain with pistons through the working cylinders, the length of which is more than distance between the pistons, which provides presence of at least one piston in the working cylinder at any period of time.

EFFECT: enhanced operating reliability.

4 cl, 5 dwg