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. 22, 2016
Filed:
Mar. 17, 2011
Ji Soo Lee, Houston, TX (US);
Terrance H. Quinn, The Woodlands, TX (US);
David A. Curry, Askett, GB;
Javier A. Franquet, Spring, TX (US);
Christopher A. Wolfe, Katy, TX (US);
Michael M. Reese, Youngsville, LA (US);
Ji Soo Lee, Houston, TX (US);
Terrance H. Quinn, The Woodlands, TX (US);
David A. Curry, Askett, GB;
Javier A. Franquet, Spring, TX (US);
Christopher A. Wolfe, Katy, TX (US);
Michael M. Reese, Youngsville, LA (US);
BAKER HUGHES INCORPORATED, Houston, TX (US);
Abstract
A method and apparatus for estimating a rock strength profile of a formation is disclosed. A tool having a testing surface is conveyed into a wellbore in the formation. The testing surface is propelled to impact the formation at a plurality of depths in the wellbore. A measurement of hardness of the formation is obtained from a rebound of the testing surface from the formation at the plurality of depths. The rock strength profile of the formation is estimated using the obtained measurements of hardness at the plurality of depths. A parameter for drilling the wellbore can be affected using the estimated rock strength profile.