SET RETARDED CEMENT COMPOSITIONS AND WELL CEMENTING METHODS

摘要

Set retarded cement compositions for cementing across a zone or zones in a well having enhanced compressive strength development after placement across the zone or zones are provided. The cement compositions are comprised of hydraulic cement, sufficient water to form a pumpable slurry, one or more set retarders and a delayed retarder neutralizer comprised of one or more titanium chelates. Methods of cementing utilizing the compositions are also provided.