The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 18, 1984
Filed:
Mar. 09, 1981
Applicant:
Inventors:
Donald H Van Steenwyk, San Marino, CA (US);
Paul W Ott, Pasadena, CA (US);
Assignee:
Applied Technologies Associates, San Marino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C / ;
U.S. Cl.
CPC ...
33302 ;
Abstract
Bore-hole mapping, or surveying, or tool steering in a bore-hole is accomplished using selected combinations of sensors, with sensor signal compensation being provided, in the hole or at the surface. Typical sensors include an angular rate sensor or sensors, a linear acceleration sensor or sensors, and an angular acceleration sensor or sensors. The sensor group is typically rotated in the bore-hole, and the sensors may have selected sensitive axis angularity relative to the travel axis in the bore-hole.