Patents by Inventor Jean-François Argillier

Jean-François Argillier 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 and water-base fluid utilizing hydrophobically modified cellulose derivatives as filtrate reducers
    Patent number: 6040276
    Abstract: The present invention relates to a process used in a well for controlling the filtration of a drilling, a completion or a workover fluid set in a well. The process comprises adding a predetermined amount of at least one hydrophobically modified cellulose derivative. In a variant of the invention, the cellulose derivative is a hydrophobically modified hydroxyethylcellulose. The invention further relates to a drilling, a completion or a workover fluid including at least one hydrophobically modified cellulose derivative, for example hydrophobically modified hydroxyethylcellulose and notably viscosifiers such as polymers or reactive clay.
    Type: Grant
    Filed: March 5, 1997
    Date of Patent: March 21, 2000
    Assignee: Institut Francais Du Petrole
    Inventors: Annie Audibert, Jean-Francois Argillier, Louise Bailey, Paul I. Reid
  • Process and water-base fluid utilizing hydrophobically modified cellulose derivatives as filtrate reducers
    Patent number: 5669456
    Abstract: The present invention relates to a process used in a well for controlling the filtration of a drilling, a completion or a workover fluid set in a well. The process comprises adding a predetermined amount of at least one hydrophobically modified cellulose derivative. In a variant of the invention, the cellulose derivative is a hydrophobically modified hydroxyethylcellulose. The invention further relates to a drilling, a completion or a workover fluid including at least one hydrophobically modified cellulose derivative, for example hydrophobically modified hydroxyethylcellulose and notably viscosifiers such as polymers or reactive clay.
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: September 23, 1997
    Assignees: Institut Francais du Petrole, Dowell Schlumberger, Inc.
    Inventors: Annie Audibert, Jean-Francois Argillier, Louise Bailey, Paul I. Reid