Study of oilwell cements by solid-state NMR
作者： Gwenn Le Saoût , Éric Lécolier , Alain Rivereau , Hélène Zanni
DOI: 10.1016/J.CRCI.2003.10.018
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摘要: L'objectif d'une operation d'abandon de puits est d'etablir une zone d'isolation pour duree infinie. Les bouchons mis en place fermer les sont majoritairement des ciment. Il donc important comprendre differents processus physiques et chimiques la degradation du ciment dans conditions puits. Dans cette etude, fious avons caracterise structure deux formulations differentes vieillissement, utilisant techniques RMN DRX. Nous pu montrer que l'augmentation pression temperature conduisait a polymerisation plus importante silicates calcium hydrates (C-S-H). le cas ciments faible permeabilite, nous evidence acceleration l'activite pouzzolanique fumee silice lorsque augmentent.
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