Methods of cementing in subterranean zones
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United States of America Patent
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-
Jul 16, 2002
Grant Date -
N/A
app pub date -
Sep 29, 2000
filing date -
Sep 29, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Improved methods of cementing in subterranean zones penetrated by well bores are provided. The methods are basically comprised of the steps of preparing a cement composition comprised of a hydraulic cement, a biodegradable, substantially non-dispersing set retarder of low anionic character comprised of polysuccinimide and sufficient water to form a slurry, placing said cement composition in said subterranean zone and allowing said cement composition to set into a solid mass therein.
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