A logging device measures the inclination of a borehole and its bearing. The instrument rotates freely on a weighted cylindrical platform within a housing to position the axes of a pendulum and a gyroscope. The deviation of the pendulum from the vertical and the bearing of the gyroscope are measured by accurate potentiometers. An additional, more sensitive pendulum is used for small inclinations. /Patent Abstract/

  • Supplemental Notes:
    • Notice of this patent appeared in Geophysics, Vol. 40, No. 3, June 1975.
  • Corporate Authors:

    United States Patent Office

    2021 Jefferson Davis Highway
    Arlington, VA  United States  22202
  • Authors:
    • Otte, H J
  • Publication Date: 1974-11-5

Subject/Index Terms

Filing Info

  • Accession Number: 00097705
  • Record Type: Publication
  • Report/Paper Numbers: 3,845,569 Patent
  • Files: TRIS
  • Created Date: Aug 13 1975 12:00AM