Wells – Processes – Chemical inter-reaction of two or more introduced materials
Reexamination Certificate
2007-12-14
2010-11-30
Bates, Zakiya W. (Department: 3676)
Wells
Processes
Chemical inter-reaction of two or more introduced materials
C166S279000, C166S280200, C166S281000, C166S308300
Reexamination Certificate
active
07841411
ABSTRACT:
A method of treating a subterranean formation penetrated by a wellbore is carried out by forming a treatment fluid comprising an aqueous carrier fluid and a solid-form polyimide homopolymer or copolymer capable of hydrolyzing to form polycarboxylates and/or polycarboxylic acids. The treatment fluid is introduced into the formation through the wellbore. In another method, a treatment fluid comprising an aqueous carrier fluid, a solid-form polysuccinimide homopolymer or copolymer and at least one of a viscosifying agent, proppant and an acid capable of dissolving materials of the formation is formed. This is introduced into the formation through the wellbore. A method of treating a sandstone-containing formation penetrated by a wellbore may also be carried out by forming a treatment fluid comprising an aqueous solution containing a hydrogen fluoride source, ammonium hydroxide and at least one of a polyimide and a polycarboxylate, which is introduced into the formation through the wellbore.
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Fuller Michael J.
Still John W.
Bates Zakiya W.
Cate David
Nava Robin
Rzaniak Martin
Schlumberger Technology Corporation
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