Process for recovering organic liquids from underground areas

Details Process for recovering organic liquids from underground areas Process for recovering organic liquids from underground areas

1980-06-02

1982-04-06

Leppink, James A.

Wells

Processes

Separating material entering well

166 75R, 166205, 166369, E21B 4300, E21B 4334

Patent

active

043231225

ABSTRACT:
The invention provides a system and method for recovering organic liquid such as gasoline which has settled on the water table in underground areas. The system comprises a conduit extending from the ground surface to a point just above the water table, a collection head fitted on the lower end of the conduit, a collection vessel connected to the upper end of the conduit and an exhaust means for creating less than atmospheric pressure in the vessel. The collection head has a liquid impermeable end portion and a liquid permeable intermediate portion for permitting the passage of liquid.
The process comprises providing an opening in the ground to a point beneath the surface of the water table, positioning the conduit with the collection head in place so that the liquid permeable wall of the collection head is just above the surface of the water table, connecting the conduit to the collection vessel intake and exhausting air and other gaseous materials from the vessel to cause liquid to flow into the collection head through the conduit into the vessel.

REFERENCES:
patent: 260803 (1882-07-01), Tichenor
patent: 746096 (1903-12-01), Karsch
patent: 1602190 (1926-10-01), Eddy et al.
patent: 2624410 (1953-01-01), Nixon
patent: 2927640 (1960-03-01), Kenneday
patent: 3234879 (1966-02-01), Brown
patent: 3930538 (1976-01-01), Brennan et al.
patent: 3980138 (1976-09-01), Knopik
patent: 4014387 (1977-03-01), Fink
patent: 4183407 (1980-01-01), Knopik

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