Patents by Inventor Alain Driancourt

Alain Driancourt 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).

  • Well fluid comprising a fluorinated liquid phase
    Patent number: 8383555
    Abstract: The present invention relates to a well drilling, completion or workover fluid wherein the continuous phase of the fluid essentially consists of a liquid fluorinated compound. In a variant, the liquid fluorinated compound is a perfluorinated compound.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: February 26, 2013
    Assignee: Institut Francais du Petrole
    Inventors: David Pasquier, Alain Driancourt, Annie Audibert
  • Well fluid comprising a fluorinated liquid phase
    Patent number: 7858564
    Abstract: A well drilling, completion or workover fluid has a continuous phase of the fluid essentially consists of a liquid fluorinated compound. In a variant, the liquid fluorinated compound is a perfluorinated compound.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: December 28, 2010
    Assignee: Institut Francais du Petrole
    Inventors: David Pasquier, Alain Driancourt, Annie Audibert
  • WELL FLUID COMPRISING A FLUORINATED LIQUID PHASE
    Publication number: 20100307831
    Abstract: The present invention relates to a well drilling, completion or workover fluid wherein the continuous phase of the fluid essentially consists of a liquid fluorinated compound. In a variant, the liquid fluorinated compound is a perfluorinated compound.
    Type: Application
    Filed: August 17, 2010
    Publication date: December 9, 2010
    Inventors: David Pasquier, Alain Driancourt, Annie Audibert
  • WELL FLUID COMPRISING A FLUORINATED LIQUID PHASE
    Publication number: 20070123430
    Abstract: The present invention relates to a well drilling, completion or workover fluid wherein the continuous phase of the fluid essentially consists of a liquid fluorinated compound. In a variant, the liquid fluorinated compound is a perfluorinated compound.
    Type: Application
    Filed: November 17, 2006
    Publication date: May 31, 2007
    Inventors: David Pasquier, Alain Driancourt, Annie Audibert
  • Flexible pipeline having a dual-layer sheath of polymer
    Patent number: 6455118
    Abstract: The present invention relates to a reinforced flexible pipeline for conveying an effluent, the pipeline having a sheath (2, 3) of polymer, the internal surface of which is in contact with the effluent and the external surface of which is in contact with reinforcing wires (4) when under pressure. The sheath has an internal layer (2) of polymer or copolymer with no external plasticizer and an external layer (3) of polymer possibly containing plasticizers so as to obtain given mechanical characteristics. Application of the pipeline proposed by the invention for conveying an effluent under pressure and at high temperature.
    Type: Grant
    Filed: December 10, 1998
    Date of Patent: September 24, 2002
    Assignee: Institut Francais du Petrole
    Inventors: Bernard Dewimille, Jean Hardy, Jacques Jarrin, Alain Driancourt
  • Gas separation membrane
    Patent number: 5071452
    Abstract: Disclosed is a gas separation membrane, comprising a film with a thickness ranging from 0.05.10.sup.-6 to 20.10.sup.-6 m, at least 90% by mole of which is at least one aromatic polyimide or copolyimide, the recurrent unit of which corresponds to the following formula (I): ##STR1## where A represents a tetravalent aromatic radical at least 50% by mole of which are represented by the following formula (II): ##STR2## and B represents a bivalent aromatic radical or a mixture of bivalent aromatic radicals.
    Type: Grant
    Filed: August 13, 1990
    Date of Patent: December 10, 1991
    Assignee: Institut Francais du Petrole
    Inventors: Rene Avrillon, Andre Deschamps, Alain Driancourt, Jean-Claude Mileo, Eric Robert