Organic compounds containing at least one nitrogen atom are particularly suitable as retarders for geopolymeric systems employed as well cements. Preferred compounds include aminated polymers, amine phosphonates, quaternary ammonium compounds and tertiary amines. The geopolymeric compositions are suitable for primary cementing and remedial cementing operations. The preferred temperature range within which the retarders operate is between about 20°C and 120°C.
申请公布号
EP2385029(B1)
申请公布日期
2016.10.26
申请号
EP20100290234
申请日期
2010.05.03
申请人
SERVICES PÉTROLIERS SCHLUMBERGER;SCHLUMBERGER TECHNOLOGY B.V.;SCHLUMBERGER HOLDINGS LIMITED;PRAD RESEARCH AND DEVELOPMENT LIMITED