Patents by Inventor Laurent Farnieras

Laurent Farnieras 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).

  • Heave compensated wireline logging winch system and method of use
    Patent number: 6216789
    Abstract: A computer controlled heave compensation wireline logging winch system and method of use that compensates for the effects of wave motion on floating installations performing wireline logging measurements. A wireline winch and wireline cable with a logging measurement tool attached is installed on a floating installation. Vessel vertical movement is measured and is physically compensated for by a change in speed of the wireline cable so that the logging data is obtained at a controlled speed. Any error in this physical compensation is detected by a depth measurement system and is used to adjust the true depth at which the logging tool measurements are being recorded.
    Type: Grant
    Filed: July 19, 1999
    Date of Patent: April 17, 2001
    Assignee: Schlumberger Technology Corporation
    Inventors: Marc Lorsignol, Angus Armstrong, Marvin W. Rasmussen, Laurent Farnieras