Method for subsurface vapor extraction

Details Method for subsurface vapor extraction Method for subsurface vapor extraction

1993-06-23

1995-08-08

Lithgow, Thomas M.

Liquid purification or separation

Processes

Including geographic feature

210170, 210220, 210908, 210909, 166265, 166266, 166267, 166370, 95246, C02F 120, E21B 4300

Patent

active

054395941

ABSTRACT:
Methods for vacuum extraction of contaminants from subsurface media which involves vacuum withdrawal through a conduit, of vaporized contaminant, assisted by a tube for allowing air bubbles to flow through the liquid-phase hydrocarbon zone thereby causing enriched hydrocarbon vapors to be extracted through the vacuum applied to the conduit.

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