GASIFIED LIQUID EXTRACTION PLANT Russian patent published in 2011 - IPC F04F1/08 

FIELD: engines and pumps.

SUBSTANCE: proposed plant is built around downhole pneumatic displacement pumps with working chambers connected in turns to working gas LP and HP source made up of vacuum-compressor unit. Each pump additionally incorporates central tube to discharge used and associated gases that makes an integral part of through pipeline to discharge used and associated gases jointed via load-bearing flange fitted tightly on casing pipe to vacuum-compressor unit. Extracted liquid built-up pipeline comprises intake section, pump working chambers, intermediate section and extracted liquid branch pipe jointed via load-bearing flange to main line. Load-bearing flange is additionally provided with excess pressure valve connected to bypass gas pipeline and compressed gas feed branch pipe connected to vacuum-compressor unit outlet.

EFFECT: lift of gasified liquid with increased content of mechanical impurities and associated gas in one-stage liquid lift.

7 dwg