CEMENTING CASING STRINGS IN DEEP WATER OFFSHORE WELLS

摘要

The present invention provides improved compositions and methods for cementingcasing strings in deep water offshore formations penetrated by well bores. Themethods arebasically comprised of the steps of preparing a cement composition comprisedof hydrauliccement, water, an environmentally degradable water reducing and dispersingadditive, anenvironmentally degradable set retarding additive and an environmentallydegradablecompressive strength and set accelerating additive.