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:
May. 12, 2015
Filed:
Jun. 11, 2009
Scott Beattie, Kuala Lumpur, MY;
Eric Michael Twardowski, Spring, TX (US);
Ming Zo Tan, Singapore, SG;
Scott Beattie, Kuala Lumpur, MY;
Eric Michael Twardowski, Spring, TX (US);
Ming Zo Tan, Singapore, SG;
Weatherford Technology Holdings, LLC, Houston, TX (US);
Abstract
A method for enhanced degradation of a cutting structure on a drill shoe is provided. The cutting structure may be degraded at an accelerated rate after achieving a desired objective. Degradation of the cutting structures on the drill shoe may facilitate the eventual drill out of the drill shoe. In one embodiment, a method of degrading the cutting structure includes operating the drill shoe using a reduced flow rate of drilling fluid. In another embodiment, a method of degrading the cutting structure includes operating the drill shoe at an increased rotary speed. In yet another embodiment, a method of degrading the cutting structure includes operating the drill shoe with an increased weight on bit. In yet another embodiment, a method of degrading the cutting structure includes any combination of one or more of the enhanced degradation methods described herein.