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US 2013/0157902 A1Published application
High Molecular Weight Low Polydispersity Polymers
AssigneeHalliburton Energy Services, Inc.
InventorsJames W. Ogle, Charm Boontheung, Rajesh K. Saini
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Abstract
The present invention relates to synthetic polymers having high molecular weights and low polydispersities and methods of synthesis. In one embodiment of the present invention, a polymer includes a polyacrylate polymer obtained from a polymerization reaction in which the polyacrylate polymer has a molecular weight of at least about 500,000 and a polydispersity index of about 1.25 or less.
Claims21
A polymer comprising:
- a polyacrylate brush polymer obtained from a polymerization reaction wherein the polyacrylate brush polymer has a molecular weight of at least about 500,000 and a polydispersity index of about 1.25 or less.
(canceled)
A subterranean fluid comprising:
- a base fluid;
- and
- a polyacrylate brush polymer that has a molecular weight of at least about 2,870,000 and a polydispersity index of about 1.25 or less.
A polyacrylate polymer product prepared by a process comprising:
- dissolving acrylate-based monomers in a fluid media comprising an olefin-containing polyalcohol amide surfactant;
- and
- initiating a polymerization reaction of the acrylate-based monomers with a polymerization initiator
- to produce a polymer having a molecular weight of at least about 2,870,000 and a polydispersity index of about 1.25 or less.
1 more element
Dependencies are inferred from the claim text.