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US 8,772,205 B2Granted
Water-soluble degradable synthetic vinyl polymers and related methods
AssigneeHalliburton Energy Services, Inc.
InventorsAlexander Bismarck, Emilia M. Kot, Rajesh K. Saini
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Abstract
Of the many embodiments presented herein, one is a subterranean treatment fluid comprising: an aqueous fluid; and a water-soluble degradable synthetic vinyl polymer having a labile link in its backbone. Also provided in one instance is a water-soluble degradable synthetic vinyl polymer with labile group in its backbone made by a redox polymerization, the redox polymerization reaction comprising these reactants: a macroinitiator that comprises a labile link, an oxidizing metal ion, and a vinyl monomer.
Claims12
A method comprising:
- providing a treatment fluid comprising a crosslinked water-soluble degradable synthetic vinyl polymer having a labile link in its backbone, the labile link being derived from at least one selected from the group consisting of a poly(orthoester), an orthoester, a polyphosphazene, a polycyanoacrylate, any derivative thereof, and any combination thereof;
- and
- placing the treatment fluid in a subterranean formation.
A method comprising:
- placing a treatment fluid in a subterranean formation, the treatment fluid comprising a crosslinked water-soluble degradable synthetic vinyl polymer having a labile link in its backbone, an aqueous base fluid, and an acid, wherein the labile link comprises at least one selected from the group consisting of disulfide, orthoester, silyl, phosphazine, any derivative thereof, and any combination thereof.
A method comprising:
- placing a treatment fluid in a subterranean formation, the treatment fluid comprising an aqueous base fluid as a continuous phase and micelles that comprise an enclosed chemical and an outer surface of a crosslinked water-soluble degradable synthetic vinyl polymer having a labile link in its backbone, wherein the labile link comprises at least one selected from the group consisting of disulfide, orthoester, silyl, phosphazine, any derivative thereof, and any combination thereof.
Dependencies are inferred from the claim text.