USE OF HIGH RATIO AQUEOUS ALKALI SILICATES FOR PROFILE MODIFICATION, WATER CONTROL AND STABILIZATION

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United States of America Patent

APP PUB NO 20120245062A1
SERIAL NO

13424680

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Abstract

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Soluble silicates are commonly used to block and strengthen permeable zones in subterranean formations. These applications include conformance for oil field, grouting for the construction industry and water shut-off for mining. It was discovered that set times and set properties could be improved by using novel, high ratio alkali silicates. Ratio being defined as the mol ratio of SiO2:Me2O, where Me is an alkali metal and is most commonly sodium or potassium (i.e. Na2O and K2O).

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PQ CORPORATION300 LINDENWOOD DRIVE MALVERN PA 19355-1740

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  • 2012 Application Filing Year
  • C09K Class
  • 1833 Applications Filed
  • 1451 Patents Issued To-Date
  • 79.16 % Issued To-Date
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Inventor Name Address # of filed Patents Total Citations
McDonald, Michael J Toronto, CA 15 190

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges523561024020118421601 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7081 - 9091 - 100100 +0100200300255075125150175225250275325350375

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