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. 23, 2019
Filed:
Oct. 08, 2014
Applicant:
Landmark Graphics Corporation, Houston, TX (US);
Inventors:
Assignee:
Landmark Graphics Corporation, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 21/08 (2006.01); E21B 44/02 (2006.01); E21B 21/00 (2006.01); E21B 47/06 (2012.01); E21B 49/00 (2006.01); E21B 47/18 (2012.01);
U.S. Cl.
CPC ...
E21B 44/02 (2013.01); E21B 21/00 (2013.01); E21B 21/08 (2013.01); E21B 47/065 (2013.01); E21B 49/00 (2013.01); E21B 47/18 (2013.01);
Abstract
One drilling method embodiment includes: obtaining a set of drilling parameters, possibly from a drilling plan; applying the set of drilling parameters to a physics-based model to obtain an estimated log of a downhole parameter such as temperature; and refining the estimated log using a data-driven model with a set of exogenous parameters. Temperature cycling and cumulative fatigue (or other measures of failure probability or remaining tool life) may be derived to predict tool failures, identify root causes of poor drilling performance, and determine corrective actions.