Patent ID: 7459019
Filing Date: 2008-12-02
Classification: C04B,C09K,Y02W

Abstract:
1. A pumpable cement slurry, comprised of water and particulate solids, including cement and mineral oxides, intended to be exposed to a temperature range between about 250° C. and 900° C., wherein: (i) said cement is a Portland cement or an aluminum enriched Portland cement; (ii) said mineral oxides comprise: (iii) all particulate materials have discrete particle sizes so that the packing of the particulate materials is optimized; (iv) the slurry density ranges from about 1.40 g/cm (v) the mineralogical bulk oxide composition of the particulate solids falls within the margarite-quartz-pectolite triangle within the Ca—Al—Si ternary diagram and promotes the formation of anorthite at said temperature range.