Wells – Processes – Distinct – separate injection and producing wells
Patent
1996-05-20
1997-10-14
Suchfield, George A.
Wells
Processes
Distinct, separate injection and producing wells
166 50, 166 52, 166266, 210DIG49, 405128, E21B 4330, E21B 4340, B09C 100
Patent
active
056762070
ABSTRACT:
A soil remediation system (10) for removing contaminants (11) from a contaminated area (12) located in the vadose zone (13) of the earth and comprising multiplicity of stratigraphic zones, contaminants and compositions (26, 28), is disclosed. The system (10) comprises a first circulator (32) for circulating gas through the first zone (26) at a first volumetric rate and a second circulator (38) for circulating gas through the second zone (28) at a second volumetric rate to carry the contaminants in each respective zone (26, 28) to the surface of the earth (15). The system (10) includes a zero or low permeability membrane or layer (34) positioned between the first and second zone (26, 28) to control the commingling of the first and second volumetric flow rates so as to allow removal of contaminates in the first zone (26) independent of the removal of contaminates in the second zone (28).
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Braithwaite James
Simon Philip B.
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