Apparatus and method for recovery of liquid hydrocarbons from gr

Details Apparatus and method for recovery of liquid hydrocarbons from gr Apparatus and method for recovery of liquid hydrocarbons from gr

1982-08-12

1985-02-05

Purser, Ernest R.

Wells

Processes

Producing the well

166 74, E21B 4300

Patent

active

044973705

ABSTRACT:
Apparatus and method for recovery of liquid hydrocarbons on ground water in which one or more perforate, small diameter (2 to 4 inch) well casings are installed in the ground in or at least adjacent to a contaminated soil area containing the liquid hydrocarbons. A liquid recovery unit is in each well casing and each recovery unit has a hollow housing covered by a semi-permeable membrane which passes liquid hydrocarbons but blocks the flow of ground water into the housing. The liquid hydrocarbons collected in the housings can be moved to a receiver by pressurizing the housings, by suction applied to the housings, by pressurizing the well casings, and by the use of submersible pumps near the housings. Several embodiments of the recovery units are disclosed.

REFERENCES:
patent: 2524933 (1950-10-01), Silverman
patent: 2980184 (1961-04-01), Reed
patent: 4154678 (1979-05-01), Kole
patent: 4243529 (1981-01-01), Strauss
patent: 4273650 (1981-06-01), Solomon

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