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:
Apr. 03, 2018
Filed:
Jul. 21, 2014
Schlumberger Technology Corporation, Sugar land, TX (US);
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Abstract
A method to perform a drilling operation. The method includes calibrating an axial survey sensor of a bottom hole assembly (BHA) by obtaining, from the axial survey sensor, a data log as a first function of azimuthal angle within a borehole, generating, by a computer processor of the BHA and using a pre-determined algorithm, a fitted curve as a second function of the azimuthal angle, wherein the fitted curve is generated based on the data log to represent a calibration error of the axial survey sensor, and extracting, by the computer processor of the BHA, a calibration parameter from the fitted curve. Accordingly, the drilling operation is performed using at least the axial survey sensor based on the calibration parameter.