Cementing casing strings in deep water offshore wells
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United States of America Patent
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Sep 24, 2002
Grant Date -
Jan 17, 2002
app pub date -
Feb 21, 2001
filing date -
Jul 15, 1999
priority date (Note) -
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Abstract
The present invention provides improved compositions and methods for cementing casing strings in deep water offshore formations penetrated by well bores. The methods are basically comprised of the steps of preparing a cement composition comprised of hydraulic cement, water, an environmentally degradable water reducing and dispersing additive, an environmentally degradable set retarding additive and an environmentally degradable compressive strength and set accelerating additive.
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