B - Operations – Transporting – 09 – B
Patent
B - Operations, Transporting
09
B
B09B 3/00 (2006.01) A01B 79/00 (2006.01) B09C 1/06 (2006.01) C09K 17/00 (2006.01) E02D 3/11 (2006.01) E21B 36/00 (2006.01) E21B 36/02 (2006.01) E21B 43/08 (2006.01) E21B 43/295 (2006.01) E21B 43/30 (2006.01) F23G 7/14 (2006.01)
Patent
CA 2082108
64 METHOD AND APPARATUS FOR HEATING SUBSURFACE SOIL FOR DECONTAMINATION ABSTRACT OF THE DISCLOSURE A technique for in situ decontamination of an earth formation. High gas temperatures can be achieved at subsurface formations by supplying a fuel at a subsurface location, such as at the bottom of a wellbore. Pressurized air or gas preheated to a temperature of about 700°F-1200°F is supplied to the wellbore to ignite the fuel. The combustion heat produced by the fuel further heats the preheated gas to temperatures in the range of 1200°F-4500°, which heated gases are forced out of the borehole into the contaminated formation. Contaminants are thereby volatilized or oxidized and removed from the formation to the surface.
Hrubetz Environmental Services Inc.
Kirby Eades Gale Baker
LandOfFree
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