Use of radiation-induced polymers in cement slurries. [fluid loss control]

Patent · Mon Feb 09 23:00:00 EST 1976

OSTI ID:7279863

Knight, B L; Rhudy, J S; Gogarty, W B

Water loss from cement slurries is reduced by incorporating within a cement slurry 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 10-60 percent aqueous monomer solution with gamma radiation. The aqueous monomer solution preferably contains 25-99 percent acrylamide and 75-1 percent sodium acrylate. The polymer can be present in concentration of about 0.001 to about 3.0 weight percent, based on the aqueous phase of the slurry. (auth)

• Assignee: Hercules, Inc.
• Patent Number(s): US 3937633
• OSTI ID: 7279863
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300 -- Petroleum-- Drilling & Production
36 MATERIALS SCIENCE
360601 -- Other Materials-- Preparation & Manufacture
360603 -- Materials-- Properties
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
ACRYLAMIDE
ACRYLIC ACID
AMIDES
AQUEOUS SOLUTIONS
BUILDING MATERIALS
CARBOXYLIC ACIDS
CEMENTS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
DISPERSIONS
ELECTROMAGNETIC RADIATION
EVAPORATION
GAMMA RADIATION
HYDROGEN COMPOUNDS
IONIZING RADIATIONS
MATERIALS
MIXTURES
MONOCARBOXYLIC ACIDS
OIL WELLS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
POLYMERIZATION
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
SLURRIES
SOLUTIONS
SUSPENSIONS
VISCOSITY
WATER
WELLS