Wells – Processes – Specific pattern of plural wells
Reexamination Certificate
2007-04-20
2009-12-15
Suchfield, George (Department: 3676)
Wells
Processes
Specific pattern of plural wells
C166S288000, C166S229000, C166S302000, C299S005000, C405S052000, C405S129350, C405S263000
Reexamination Certificate
active
07631689
ABSTRACT:
Methods for forming a barrier around at least a portion of a treatment area in a subsurface formation are described herein. Sulfur may be introduced into one or more wellbores located inside a perimeter of a treatment area in the formation having a permeability of at least 0.1 darcy. At least some of the sulfur is allowed to move towards portions of the formation cooler than the melting point of sulfur to solidify the sulfur in the formation to form the barrier.
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patent:
Christensen Del Scot
Vinegar Harold J.
Shell Oil Company
Suchfield George
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