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:
Dec. 10, 2019
Filed:
Nov. 02, 2015
Schlumberger Technology Corporation, Sugar Land, TX (US);
Joachim Sihler, Cheltenham, GB;
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Abstract
A method for manufacturing a system for drilling includes receiving a drive shaft for transmitting a torque to a downhole tool and forming a hollow central passage in a tubular wall of the drive shaft extending along a longitudinal axis L. The hollow central passage allows a flow of a drilling fluid through a bearing section of the system. The method further includes disposing an elongated flow diverter in the tubular wall of the drive shaft. The elongated flow diverter has a body that includes axially-spaced apertures distributed along the longitudinal axis L of the drive shaft and the hollow central passage. The distribution of the apertures along the longitudinal axis L reduce the impingement of the drilling fluid while diverting the flow of the drilling fluid from an upstream annulus section of the system to the hollow central passage.