DOUBLE BARRIER SYSTEM FOR AN IN SITU CONVERSION PROCESS
摘要
<p>The invention provides a double barrier system (132) for a subsurface treatment area, that includes a first barrier (136) formed around at least a portion of the subsurface treatment area, the first barrier configured to inhibit fluid from exiting or entering the subsurface treatment area; and a second barrier (138) formed around at least a portion of the first barrier, wherein a separation space exists between the first barrier and the second barrier. The invention also provides methods of forming the double barrier system.</p>
