Wells – Processes – Chemical inter-reaction of two or more introduced materials
Reexamination Certificate
2007-10-16
2007-10-16
Gay, Jennifer H. (Department: 3676)
Wells
Processes
Chemical inter-reaction of two or more introduced materials
C166S288000
Reexamination Certificate
active
11088559
ABSTRACT:
Methods and compositions for sealing subterranean zones having temperatures in the range of about 80° F. to about 300° F. are provided. In a method of the invention, a sealing composition of the invention of water, a substantially fully hydrated depolymerized polymer and poly lactic acid, with a pH above about 8.5, is introduced into the subterranean zone wherein it becomes substantially rigid and seals the zone when exposed to subterrnean zone temperatures above about 80° F.
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Donaldson Ashley
Munoz, Jr. Trinidad
Todd Bradley L.
Whitfill Donald L
DiTrani Angela
Gay Jennifer H.
Halliburton Energy Service,s Inc.
Roddy Craig W.
Tripp Karen
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