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. 12, 2019
Filed:
Apr. 25, 2014
Applicant:
Weatherford/lamb, Inc., Houston, TX (US);
Inventors:
Mojtaba Karimi, Houston, TX (US);
Don Hannegan, Fort Smith, AR (US);
Mojtaba P. Shahri, Houston, TX (US);
Ovunc Mutlu, Houston, TX (US);
Assignee:
Weatherford Technology Holdings, LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 21/00 (2006.01); E21B 43/26 (2006.01); E21B 21/08 (2006.01); E21B 43/267 (2006.01);
U.S. Cl.
CPC ...
E21B 21/003 (2013.01); E21B 21/08 (2013.01); E21B 43/26 (2013.01); E21B 43/267 (2013.01);
Abstract
Systems and methods for wellbore strengthening are disclosed. An effective way to strengthen a wellbore and prevent future fractures during drilling operations is to induce fractures having a desired fracture width profile and fracture length. Surface back pressure can be used to accurately induce such fractures. The induced fractures which are then sealed can increase fracture gradient of the wellbore thus mitigating future fractures.