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:
Oct. 11, 2016
Filed:
Apr. 28, 2011
Applicants:
Arne Austefjord, Sandnes, NO;
Pal Jacob Nessjoen, Trondheim, NO;
Inventors:
Arne Austefjord, Sandnes, NO;
Pal Jacob Nessjoen, Trondheim, NO;
Assignee:
NATIONAL OILWELL VARCO, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01M 1/38 (2006.01); G05B 21/00 (2006.01); E21B 19/16 (2006.01); B66C 13/02 (2006.01); B66C 13/08 (2006.01); B66C 23/16 (2006.01); H04N 7/18 (2006.01);
U.S. Cl.
CPC ...
E21B 19/165 (2013.01); B66C 13/02 (2013.01); B66C 13/085 (2013.01); B66C 23/16 (2013.01); H04N 7/18 (2013.01);
Abstract
A system is disclosed for determining the position of a downhole drill pipe relative to a pipe handling device. The system comprises: an imaging means arranged to capture an image of the drill pipe in a region of the pipe for engagement by the device; and a processor operable to analyze said captured image and to determine therefrom the position of the drill pipe relative to said device.