Patents by Inventor Nathan Hilleary

Nathan Hilleary 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).

  • Downhole preparation and use of thixotropic cement slurries
    Patent number: 7757765
    Abstract: A method for use within a subterranean formation penetrated by a wellbore includes introducing a thixotropic agent into the well and introducing a cement slurry into the well. The method includes forming a thixotropic cement slurry downhole, including mixing the cement slurry and the thixotropic agent downhole.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: July 20, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Nathan Hilleary, Robert Nelson, Robert Bucher
  • Method to cement a perforated casing
    Patent number: 7640983
    Abstract: The invention discloses a method of treating a zone of a well comprising a wellbore, a tube which is permeable to settable material, said tube forming an annulus with the wellbore; and wherein said zone is located in the annulus, the method comprises the steps of: (i) placing inside said tube a first plug; (ii) creating on said tube a first opening and a second opening, so that: the zone be located between said first and second openings and the first opening be located between said zone and said first plug; (iii) placing inside said tube a second plug, so that said second plug is located between said second opening and said zone; (iv) injecting a settable material inside said tube between said second and first plugs, so that settable material fills the annulus and the zone by passing through the first opening; and (v) eliminating said second plug.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: January 5, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Nathan Hilleary, Robert Bucher, Mike Martin
  • Method to Cement a Perforated Casing
    Publication number: 20090014177
    Abstract: The invention discloses a method of treating a zone of a well comprising a wellbore, a tube which is permeable to settable material, said tube forming an annulus with the wellbore; and wherein said zone is located in the annulus, the method comprises the steps of: (i) placing inside said tube a first plug; (ii) creating on said tube a first opening and a second opening, so that: the zone be located between said first and second openings and the first opening be located between said zone and said first plug; (iii) placing inside said tube a second plug, so that said second plug is located between said second opening and said zone; (iv) injecting a settable material inside said tube between said second and first plugs, so that settable material fills the annulus and the zone by passing through the first opening; and (v) eliminating said second plug.
    Type: Application
    Filed: July 12, 2007
    Publication date: January 15, 2009
    Inventors: Nathan Hilleary, Robert Bucher, Mike Martin
  • Downhole Preparation and Use of Thixotropic Cement Slurries
    Publication number: 20080179059
    Abstract: A method for use within a subterranean formation penetrated by a wellbore includes introducing a thixotropic agent into the well and introducing a cement slurry into the well. The method includes forming a thixotropic cement slurry downhole, including mixing the cement slurry and the thixotropic agent downhole.
    Type: Application
    Filed: November 29, 2007
    Publication date: July 31, 2008
    Inventors: Nathan Hilleary, Robert Nelson, Robert Bucher