Patents by Inventor Boyd Grover

Boyd Grover 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).

  • Anti-accretion additives for drilling fluids
    Publication number: 20050043187
    Abstract: Additives for drilling fluids, in particular for water-based drilling fluids are described which when added to the fluid at levels of up to 10% weight by volume reduces the accretion and bit-balling tendencies of shale cuttings exposed to said fluids. The additives are based on phosphonate chemistry, and are of the general class (I), wherein R, R? and R? are radicals exclusively containing H atoms or combinations of H, C, O or P atoms up to a maximum of 100 atoms.
    Type: Application
    Filed: September 30, 2004
    Publication date: February 24, 2005
    Inventors: Louise Bailey, Boyd Grover
  • Anti-accretion additives for drilling fluids
    Patent number: 6803346
    Abstract: Additives for drilling fluids, in particular for water-based drilling fluids are described which when added to the fluid at levels of up to 10% weight by volume reduces the accretion and bit-balling tendencies of shale cuttings exposed to said fluids. The additives are based on phosphonate chemistry, and are of the general class (I), wherein R, R′ and R″ are radicals exclusively containing H atoms or combinations of H, C, O or P atoms up to a maximum of 100 atoms.
    Type: Grant
    Filed: November 15, 2000
    Date of Patent: October 12, 2004
    Assignee: Schlumberger Technology Corporation
    Inventors: Louise Bailey, Boyd Grover