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:
Jun. 22, 2021
Filed:
Jun. 12, 2018
Applicant:
Gyrodata, Incorporated, Houston, TX (US);
Inventors:
Adrián Guillermo Ledroz, Houston, TX (US);
John Lionel Weston, Christchurch, GB;
Assignee:
Gyrodata, Incorporated, Houston, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/00 (2012.01); G01V 3/38 (2006.01); G01V 9/00 (2006.01); G01V 3/40 (2006.01); G01V 1/28 (2006.01); G01V 3/26 (2006.01); E21B 47/024 (2006.01); E21B 47/022 (2012.01); E21B 7/04 (2006.01);
U.S. Cl.
CPC ...
E21B 47/00 (2013.01); G01V 1/282 (2013.01); G01V 3/26 (2013.01); G01V 3/38 (2013.01); G01V 3/40 (2013.01); G01V 9/00 (2013.01); E21B 7/04 (2013.01); E21B 47/022 (2013.01); E21B 47/024 (2013.01);
Abstract
Various implementations described herein are directed to a method for surveying a wellbore. A statistical estimation process that combines magnetic survey measurement data and gyroscopic survey measurement data to form error estimates in a magnetic survey system is applied. The error estimates are used to correct magnetic survey data provided by the magnetic survey system. Magnetic only survey data is used when convergence of the error estimates has occurred. Information that facilitates drilling the wellbore is provided.