Patents by Inventor Frederic Thery

Frederic Thery 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).

  • Low permeability cement systems for steam injection application
    Patent number: 8251143
    Abstract: A cement slurry composition comprises a plugging agent with a glass-transition temperature lower than about 150° C. The plugging agent is preferably an including polyethlene wax, polypropylene wax, carnauba wax or scale wax. After the cement slurry sets, it may be heated to a temperature sufficient to melt the wax. The molten wax may then flow into pores in the set cement. Upon cooling, the wax solidifies. As a result, the porosity and permeability of the set cement are reduced.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: August 28, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Bruno Drochon, Frederic Thery
  • Versatile additives for well cementing applications
    Patent number: 7946343
    Abstract: The present invention provides a versatile additive for improving the properties of a cement slurry made with portland cement and to be utilized in well cementing, said versatile additive comprising type of silicates and/or borates that inhibit gelation occurring with the interstitial phase. The additive of the present invention improves significantly the rheology (i.e., strong dispersing effect) and can even overcome severe gelation problems. At temperature above about 88° C. (190° F.) the additive acts as retarder aid, enabling to reduce considerably the concentration of retarder required to achieve a given thickening time.
    Type: Grant
    Filed: October 23, 2006
    Date of Patent: May 24, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Jean-Philippe Caritey, Michel Michaux, Tatiana Pyatina, Frédéric Thery
  • Low Permeability Cement Systems for Steam Injection Application
    Publication number: 20100065272
    Abstract: A cement slurry composition comprising a plugging agent polymer with a low Tg point.
    Type: Application
    Filed: December 13, 2007
    Publication date: March 18, 2010
    Inventors: Bruno Drochon, Frederic Thery
  • Versatile Additives For Well Cementing Applications
    Publication number: 20080318811
    Abstract: The present invention provides a versatile additive for improving the properties of a cement slurry made with portland cement and to be utilized in well cementing, said versatile additive comprising type of silicates and/or borates that inhibit gelation occurring with the interstitial phase. The additive of the present invention improves significantly the rheology (i.e., strong dispersing effect) and can even overcome severe gelation problems. At temperature above about 88° C. (190° F.) the additive acts as retarder aid, enabling to reduce considerably the concentration of retarder required to achieve a given thickening time.
    Type: Application
    Filed: October 23, 2006
    Publication date: December 25, 2008
    Inventors: Jean-Philippe Caritey, Michel Michaux, Tatiana Pyatina, Frederic Thery