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:
Nov. 11, 2008
Filed:
Nov. 04, 2005
Applicants:
Mark Natanael, Houston, TX (US);
Kenneth M. Nevlud, Houston, TX (US);
Timothy P. Beaton, The Woodlands, TX (US);
James Beylotte, Houston, TX (US);
Inventors:
Mark Natanael, Houston, TX (US);
Kenneth M. Nevlud, Houston, TX (US);
Timothy P. Beaton, The Woodlands, TX (US);
James Beylotte, Houston, TX (US);
Assignee:
Smith International, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 4/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A turbodrill has rotor vanes and stator vanes that are asymmetric with respect to each other. The rotor blade on which the rotor vanes are disposed has a reaction of less than about 0.5. A method of designing a turbodrill comprises optimizing a first design of stator vanes and optimizing a second design of rotor vanes using computational fluid analysis.