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:
Oct. 10, 2017
Filed:
Jul. 13, 2015
Applicant:
Landmark Graphics Corporation, Houston, TX (US);
Inventors:
Robello Samuel, Cypress, TX (US);
Gabriela M Morales-Ocando, Katy, TX (US);
Aniket Aniket, Houston, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 21/08 (2006.01); E21B 44/00 (2006.01); E21B 41/00 (2006.01);
U.S. Cl.
CPC ...
E21B 44/00 (2013.01); E21B 21/08 (2013.01); E21B 41/0092 (2013.01);
Abstract
Bottom-hole pressure operating envelops for underbalanced drilling take into account the lithologies of the formations being drilled through.