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Well cementing method using an am/amps fluid loss additive blend

Patent ·
OSTI ID:7001420
;
A method is described of cementing a wellbore, comprising the steps of: mixing together a hydraulic cement, water in an amount to produce a pumpable slurry, and a non-retarding fluid loss additive blend. The blend comprises a copolymer of acrylamide and 2-acrylamide-2-methylpropane sulfonate, the sodium salt of naphthalene formaldehyde sulfonate, and polyvinylpyrrolidone polymer; pumping the cement slurry to the desired location in the wellbore; and allowing the cement slurry to harden to a solid mass.
Assignee:
Hughes Tool Co., Houston, TX
Patent Number(s):
US 4632186
OSTI ID:
7001420
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
2-METHYLPROPANE
ACRYLAMIDE
ADDITIVES
ALDEHYDES
ALKALI METAL COMPOUNDS
ALKANES
AMIDES
AROMATICS
AZOLES
BLOOD SUBSTITUTES
BUILDING MATERIALS
CEMENTING
CEMENTS
CHLORIDES
CHLORINE COMPOUNDS
CONDENSED AROMATICS
COPOLYMERS
DISPERSIONS
DRUGS
FLUIDS
FORMALDEHYDE
HALIDES
HALOGEN COMPOUNDS
HARDENING
HEMATOLOGIC AGENTS
HETEROCYCLIC COMPOUNDS
HYDRAULIC FLUIDS
HYDROCARBONS
HYDROGEN COMPOUNDS
LACTAMS
LOSSES
MATERIALS
MIXING
MIXTURES
NAPHTHALENE
NATURAL GAS WELLS
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
POLYMERS
POLYVINYLS
PUMPING
PVP
PYRROLES
PYRROLIDONES
SODIUM CHLORIDES
SODIUM COMPOUNDS
SULFONATES
WATER
WELLS
WORKING FLUIDS