Set retarded cement compositions and methods for well cementing

Details Set retarded cement compositions and methods for well cementing Set retarded cement compositions and methods for well cementing

1991-04-23

1991-09-17

Stoll, Robert L.

Compositions

Leather or fur treating

106713, 106717, 106719, 106720, 106721, 252 8512, 252 8514, 252 851, 523130, 524 5, 524 8, C04B 702, E21B 3313

Patent

active

050492888

ABSTRACT:
Set retarded cement compositions for cementing across a zone or zones in a well having enhanced compressive strength and rapid gel strength development after placement. The cement compositions are comprised of hydraulic cement, sufficient fresh water to form a pumpable slurry, a set retarder comprising a copolymer of 2-acrylamido, 2-methylpropane sulfonic acid and acrylic acid having a average molecular weight below about 5000 and any other desired additives. Methods of cementing utilizing the cement composition also are provided.

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