Graft copolymers
Patent
·
OSTI ID:7299575
An oil recovery method utilizes a 0.001 to 1.0 percent by weight aqueous solution of a graft copolymer as the flooding agent. The grafted copolymer comprises hydrolyzed (vinyl methyl ether-maleic anhydride) interpolymerized with polyacrylamide. Methods of preparing the copolymer and relative viscosities at several aqueous concentrations are given. No laboratory or field tests were described showing its use in oil recovery.
- Assignee:
- Mobil Oil Corp.
- Patent Number(s):
- US 3475515
- OSTI ID:
- 7299575
- Country of Publication:
- United States
- Language:
- English
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