Hydrolytically stable polymers for use in oil field cementing methods and compositions

Patent · Tue Nov 26 00:00:00 EST 1985

OSTI ID:5911201

Rao, S P; Burkhalter, J F

Cementing compositions and methods of using such compositions in oil, gas and water well cementing operations to reduce fluid loss from the composition to the formation are disclosed. Such compositions incorporate certain copolymers and copolymer salts of N,N dimethylacrylamide and 2-acrylamido, 2-methyl propane sulfonic acid having mole ratios of between 1:4 and 4:1 respectively and average molecular weights of between about 75,000 and about 300,000.

• Assignee: Halliburton Company
• Patent Number(s): US 4555269
• OSTI ID: 5911201
• Resource Relation: Patent File Date: Filed date 20 Feb 1985; Other Information: PAT-APPL-703377
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
CEMENTS
CHEMICAL COMPOSITION
NATURAL GAS WELLS
CEMENTING
OIL WELLS
PLUGGING AGENTS
ACRYLAMIDE
COPOLYMERS
MOLECULAR WEIGHT
PROPANE
SALTS
SULFONIC ACIDS
WATER WELLS
WELL COMPLETION
ALKANES
AMIDES
BUILDING MATERIALS
HYDROCARBONS
MATERIALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
ORGANIC SULFUR COMPOUNDS
POLYMERS
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing