Patents by Inventor Victor Andrew Joyce

Victor Andrew Joyce 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).

  • Fluid loss control
    Patent number: 5929002
    Abstract: The invention, in one embodiment, relates to a fluid loss control additive or composition comprising a granular starch composition and fine particulate mica, in specified proportions. The invention further comprises a fracturing fluid containing a starch composition and mica, in a specified ratio. In yet a third embodiment, the invention comprises a method of fracturing a subterranean formation penetrated by a borehole, comprising injecting into the borehole and into contact with the formation, at a rate and pressure sufficient to fracture the formation, a fracturing fluid containing starch and mica, in specified ratios, and in an amount sufficient to provide fluid loss control.
    Type: Grant
    Filed: April 6, 1995
    Date of Patent: July 27, 1999
    Assignee: Dowell, a division of Schlumberger Technology Corporation
    Inventors: Victor Andrew Joyce, Reinaldo Navarrete, Vernon G. Constien