CEMENTING CASING STRINGS IN DEEP WATER OFFSHORE WELLS

摘要

The present invention provides improved compositions and methods for cementi ng casing strings in deep water offshore formations penetrated by well bores. T he 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.