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. 28, 1982
Filed:
Sep. 12, 1980
Floyd L Scott, Jr, Houston, TX (US);
BJ-Hughes Inc., Long Beach, CA (US);
Abstract
An apparatus for making orientation measurements in a drill string within a well bore comprising a tubular housing (22) adapted for insertion into the drill string and first (13) and second (15) measuring devices in the housing for measuring first and second orientation characteristics, respectively, of the drill string. A signal generator (23) is responsive to the two measuring devices to provide a signal which is representative of the orientation characteristics measured. The measuring devices are operated alternately so that the signal from the signal generator is alternately representative of the first and second orientation characteristics. The signal from the signal generator, when the latter is controlled by the first measuring device, is different from the signal when the latter is controlled by the second measuring device so that it is readily apparent which of the two measuring devices is reporting.