Patents by Inventor Renaud Deboaisne

Renaud Deboaisne 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).

  • Method of determining variations in the morphology of a borehole
    Patent number: 5565624
    Abstract: Method of determining variations in the morphology of a borehole. It consists in measuring, as a function of the depth of the borehole, the dip and the azimuth (a.sub.1) of the borehole, the inside diameters of the borehole in two perpendicular directions, and the azimuth (a.sub.2) of a reference caliper and it is characterized in that consists in determining the eccentricity (e.sub.m), together with an eccentricity error (.DELTA.e.sub.m), the azimuth (a.sub.3) of the second caliper from the azimuth (a.sub.2), and the rotation speed (V.sub.R) of the reference caliper, and then comparing (.DELTA.e.sub.m) to a threshold value (.DELTA.e.sub.s) and (V.sub.R) to a threshold value (V.sub.S ) to determine the type of ovalization of the borehole.
    Type: Grant
    Filed: July 26, 1995
    Date of Patent: October 15, 1996
    Assignee: Elf Aquitaine Production
    Inventors: Renaud Deboaisne, Pascal Bauer