Patents by Inventor Eric Dreveton

Eric Dreveton 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).

  • Process using gellan as a filtrate reducer for water-based drilling fluids
    Patent number: 5744428
    Abstract: The present invention relates to a process for controlling the permeability of the walls of the geologic formations drilled. The circulating drilling fluid includes a determined amount of gellan used as a filtrate reducer.In the process, the viscosity of the fluid is mainly controlled by polymers, such as xanthan, scleroglucan or wellan.The invention further relates to a drilling fluid including gellan.
    Type: Grant
    Filed: April 15, 1996
    Date of Patent: April 28, 1998
    Assignee: Institut Francais Du Petrole
    Inventors: Eric Dreveton, Jacqueline Lecourtier, Daniel Ballerini, Lionel Choplin