Injection profiles with radiation induced copolymers. [gamma rays]
Patent
·
OSTI ID:7313009
The injectivity profile of a heterogeneous formation and/or vertical conformance is improved by injecting an aqueous solution into the formation, the solution containing a polymer obtained as a product of radiation-induced polymerization of acrylamide and/or methacrylamide and acrylic acid, methacrylic acid, and/or alkali metal salts thereof. The polymerization is preferably carried out in a 10 to 60 percent aqueous solution with gamma radiation; the aqueous monomer solution preferably contains 25 to 99 percent acrylamide and 1 to 75 percent sodium acrylate. Immiscible, miscible, or miscible-like displacing processes can be used in conjunction with this invention. 20 claims.
- Assignee:
- TIC; EDB-77-069272
- Patent Number(s):
- US 3973629
- OSTI ID:
- 7313009
- Country of Publication:
- United States
- Language:
- English
Similar Records
Use of radiation-induced polymers in cement slurries. [fluid loss control]
Altering relative permeability in production wells
Use of radiation-induced polymers as friction reducing agents
Patent
·
Mon Feb 09 23:00:00 EST 1976
·
OSTI ID:7279863
Altering relative permeability in production wells
Patent
·
Fri Jun 28 00:00:00 EDT 1974
·
OSTI ID:5072318
Use of radiation-induced polymers as friction reducing agents
Patent
·
Mon Dec 01 23:00:00 EST 1980
·
OSTI ID:6609588
Related Subjects
02 PETROLEUM
020300 -- Petroleum-- Drilling & Production
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
ACRYLAMIDE
ACRYLIC ACID
ALKALI METAL COMPOUNDS
AMIDES
CARBOXYLIC ACIDS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
ELECTROMAGNETIC RADIATION
ENHANCED RECOVERY
GAMMA RADIATION
IONIZING RADIATIONS
METHACRYLIC ACID
MONOCARBOXYLIC ACIDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PERMEABILITY
PLUGGING
POLYMERIZATION
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RESERVOIR ROCK
ROCKS
SALTS
020300 -- Petroleum-- Drilling & Production
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
ACRYLAMIDE
ACRYLIC ACID
ALKALI METAL COMPOUNDS
AMIDES
CARBOXYLIC ACIDS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
ELECTROMAGNETIC RADIATION
ENHANCED RECOVERY
GAMMA RADIATION
IONIZING RADIATIONS
METHACRYLIC ACID
MONOCARBOXYLIC ACIDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PERMEABILITY
PLUGGING
POLYMERIZATION
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RESERVOIR ROCK
ROCKS
SALTS