| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 05.99 |
| USES | Cementing high T wells contg CO2 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
- Ca aluminate (15-40%) - Na polyphosphate (5-20%) - Fly ash (25-45%) - Water to form pumpable slurry - Alpha-olefin sulfonate foaming agent (1-3%) of formula C6H13-CH=CH-(CH2)6-SO3Na - Betaine foam stabr (0.5-1.5%) of formula (C10H21-CONHCH2CH2)(Me)3N cation . carbonate anion - Gas to form foam d. 11.5-15 pounds/gallon |
| PATENT PHOTOCOPY | Available on request |
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