Pneumatic fracturing and multicomponent injection enhancement of

Details Pneumatic fracturing and multicomponent injection enhancement of Pneumatic fracturing and multicomponent injection enhancement of

1995-08-15

1996-10-01

Suchfield, George A.

Hydraulic and earth engineering

Soil remediation

In situ contaminant removal or stabilization

166 53, 166246, 166308, 210747, 405258, 405263, B09C 108, E21B 4312, E21B 4326

Patent

active

055607373

ABSTRACT:
A method and apparatus are disclosed for reducing or eliminating non-naturally occurring, subsurface, liquid contaminants from one or more soil formations, which involves the steps of pneumatically fracturing the soil formation to produce a fracture network; simultaneously or subsequently inserting into said fracture network and throughout adjacent portions of the soil formation, a pressurized gas stream, and introducing into the pressurized gas stream a mixture of one or more liquid amendments, wherein said pressurized gas, in conjunction with said liquid amendments, has an oxygen or other electron acceptor content sufficient to promote the growth of aerobic or other microorganisms in said fracture network, and wherein the pressurized gas has a sufficiently high gas to liquid ratio to atomize the liquid amendments, whereby the amendments are distributed throughout the soil formation.

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