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.

Date of Patent:
Aug. 04, 2026

Filed:

Aug. 01, 2023
Applicant:

Schlumberger Technology Corporation, Sugar Land, TX (US);

Inventors:

Ashley Bernard Johnson, Milton, GB;

Aaron Paul Simon, Oklahoma City, OK (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/085 (2012.01); E21B 41/00 (2006.01); E21B 44/00 (2006.01); E21B 47/024 (2006.01); E21B 47/13 (2012.01); E21B 49/00 (2006.01); G01H 1/10 (2006.01); G01V 1/40 (2006.01);
U.S. Cl.
CPC ...
E21B 47/085 (2020.05); E21B 44/00 (2013.01); G01H 1/10 (2013.01); E21B 41/00 (2013.01); E21B 47/024 (2013.01); E21B 47/13 (2020.05); E21B 49/003 (2013.01); E21B 2200/20 (2020.05); G01V 1/40 (2013.01);
Abstract

Methods and systems are provided that determine data characterizing spatial variation of vibrational dysfunction (such as HFTO) along the BHA of a drilling system. In embodiments, such data can be determined from a minimal set of measurements of any or all of four variables that include: vibration amplitude; vibration wavelength; vibration frequency; and the axial position of the first vibrational node. In embodiments, such data can be determined from measurements of vibration amplitude and vibration frequency of a BHA at two fixed positions along the BHA (e.g., with two sensors offset axially along the BHA). In other embodiments, such data can be generated from the estimated position of the first vibrational node and measurements of vibration amplitude and vibration frequency by a single sensor disposed at a fixed axial position along the BHA.


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