Hydraulic and earth engineering – Subterranean waste disposal – containment – or treatment – With treatment of waste
Patent
1992-06-30
1994-03-22
Reese, Randolph A.
Hydraulic and earth engineering
Subterranean waste disposal, containment, or treatment
With treatment of waste
405128, 166286, B09B 100
Patent
active
052957632
ABSTRACT:
The present invention is a method of controlling this gas migration through the subsurface strata about the landfill. The method comprises the step of installing an extraction well having a zone of influence in proximity to the perimeter of the landfill. Then, there is the step of horizontally fracturing hydraulically the subsurface strata outside the perimeter of the landfill but in proximity to the perimeter of the landfill such that the resulting horizontal fractures in the subsurface strata fluidically communicate with the landfill and the zone of influence of the extraction well. The present invention also pertains to a system for controlling gas migration in subsurface strata about a landfill. The system is comprised of an extraction well which is disposed in the landfill in proximity to the landfill's perimeter. The extraction well has a zone of influence which extends beyond the perimeter of the landfill. The system is also comprised of a monitoring well which is disposed outside of the perimeter of the landfill in the subsurface strata. There is a hydraulic fracturing mechanism for horizontally fracturing subsurface strata between the monitoring well and the extraction well such that horizontal fractures are formed which fluidically communicate with the zone of influence. Moreover, the system is comprised of a pump fluidically connected to the extraction well for draining fluid therethrough and creating the zone of influence.
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Stenborg James W.
Williams Darrell B.
Chambers Development Co., Inc.
McBee J. Russell
Reese Randolph A.
Schwartz Ansel M.
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