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Fluid loss control in well cement slurries

Patent ·
OSTI ID:6503385
; ;
This patent describes a fluid-loss-control additive adapted for use in cementing subterranean well formations with an aqueous well cement slurry. The additive comprises in combination, an anydrous mixture of (i) a lignosulfonate polymer or a condensed naphthalene sulfonate polymer or a sulfonated vinylaromatic polymer or any combination thereof and (ii) an unmodified or a chemically modified polymer of monoallylamine.
Assignee:
Ethyl Corp., Richmond, VA
Patent Number(s):
US 4657948
OSTI ID:
6503385
Country of Publication:
United States
Language:
English

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Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
ADDITIVES
AMINES
ANHYDRIDES
AQUEOUS SOLUTIONS
AROMATICS
BUILDING MATERIALS
CARBOHYDRATES
CEMENTING
CEMENTS
CHEMICAL REACTIONS
CONDENSED AROMATICS
CONTROL
CROSS-LINKING
DISPERSIONS
HYDROCARBONS
LIGNIN
LOSSES
MATERIALS
MIXTURES
NAPHTHALENE
NATURAL GAS WELLS
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
POLYMERIZATION
POLYMERS
POLYSACCHARIDES
SACCHARIDES
SLURRIES
SOLUTIONS
SULFONATES
SULFONATION
SUSPENSIONS
WELLS