Patents by Inventor Brian Ainley

Brian Ainley has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of using borate crosslinked fracturing fluid having increased temperature range
    Patent number: 5259455
    Abstract: The present invention extends the temporary temperature range for the use of magnesium oxide-delayed borate-cross linking of a galactomannan gum fracturing fluid by adding fluoride ion which precipitates insoluble magnesium fluoride. Alternatively, a chelant for the magnesium ion may be added. With the precipitation of magnesium fluoride, or the chelation of the magnesium ion, insoluble magnesium hydroxide cannot form at elevated temperatures which would otherwise lower the pH and reverse the boron-crosslinking reacting. The addition effectively extends the use of such fracturing fluids to temperatures of about 275.degree. to 300.degree. F.
    Type: Grant
    Filed: May 18, 1992
    Date of Patent: November 9, 1993
    Inventors: Kenneth H. Nimerick, Curtis W. Crown, S. Bruce McConnell, Brian Ainley