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:
Nov. 12, 2019
Filed:
Dec. 22, 2017
Applicant:
Nabors Lux 2 Sarl, Luxembourg, LU;
Inventors:
Peter James Clark, The Woodlands, TX (US);
Andrew Gorrara, Stavanger, NO;
Ola Stengel, Stavanger, NO;
Assignee:
Nabors Lux 2 SARL, Luxembourg, LU;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 7/04 (2006.01); E21B 47/024 (2006.01); E21B 47/12 (2012.01); E21B 47/09 (2012.01); E21B 47/06 (2012.01); E21B 47/022 (2012.01);
U.S. Cl.
CPC ...
E21B 47/122 (2013.01); E21B 47/022 (2013.01); E21B 47/02216 (2013.01); E21B 47/065 (2013.01); E21B 47/09 (2013.01);
Abstract
A method of surveying a wellbore continuously during drilling. The method includes using a drill string with a non-rotating sub-assembly. The non-rotating sub-assembly comprises three accelerometers oriented orthogonally to each other and three directional sensors also oriented orthogonally to each other. Sample measurements from the six sensors are used to calculate the attitude of the wellbore and more specifically used to create an accurate survey of wellbores within a subterranean formation while the drill string is drilling.