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US 5,313,819 AGranted
Quantification of blast furnace slag in a slurry
AssigneeShell Oil Company
InventorArthur H. Hale
Life of this patent
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Abstract
A method to determine the amount of blast furnace slag in a slurry sample. The slurry is preferably a drilling fluid or a wellbore cement slurry. The method comprises correlating the amount of hydrogen sulfide released from acidified slurries with the amount of blast furnace slag in the slurry and acidifying the sample and determining the amount of hydrogen sulfide released from the acidified sample.
Claims9
A method to determine the concentration of blast furnace slag in a slurry sample comprising the steps of:
- acidifying the slurry sample;
- determining the concentration of sulfides in the acidified sample;
- establishing a correlation between the concentration of blast furnace slag in the slurry and the concentration of sulfide in the acidified slurry;
- and
- determining, based on the correlation of concentration of blast furnace slag with the concentration of sulfides in the acidified slurry, the concentration of blast furnace slag in the sample.
2 more elements
Dependencies are inferred from the claim text.