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:
Mar. 12, 2019
Filed:
Feb. 28, 2013
Method to assess uncertainties and correlations resulting from multi-station analysis of survey data
Applicant:
Francis Chad Hanak, League City, TX (US);
Inventor:
Francis Chad Hanak, League City, TX (US);
Assignee:
BAKER HUGHES, A GE COMPANY, LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G01V 3/38 (2006.01); G05B 19/404 (2006.01); E21B 47/024 (2006.01); E21B 7/04 (2006.01);
U.S. Cl.
CPC ...
G06F 11/00 (2013.01); G01V 3/38 (2013.01); G05B 19/404 (2013.01); E21B 7/04 (2013.01); E21B 47/024 (2013.01);
Abstract
A system, method and computer-readable medium for a drilling a borehole is disclosed. Errors associated with multi-station survey measurements are obtained and partitioned into a set of estimated errors and a set of considered errors. A post-fit covariance matrix is determined from the estimated errors and includes the effects of the considered errors on the estimated errors. A drilling parameter of a drill string in the borehole may be altered using the determined post-fit covariance matrix.