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. 26, 2020
Filed:
Nov. 14, 2018
Schlumberger Technology Corporation, Sugar Land, TX (US);
Xiaoge Gan, Hoston, TX (US);
Ke Chen, Houston, TX (US);
Venkatesh Karuppiah, The Woodlands, TX (US);
Anthony L. Collins, Houston, TX (US);
Ke Ken Li, Sugar Land, TX (US);
Fei Song, Sugar Land, TX (US);
Rakesh Singh, Pune, IN;
Michael Hui Du, Manvel, TX (US);
Keith Moriarty, Houston, TX (US);
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Abstract
A thread structure in accordance to one or more embodiments includes a thread extending helically along a portion of a bit body in spaced thread turns, the thread having a crest extending between a first flank and a second flank and a root extending between the thread turns, the root having a curvature defined by a portion of an ellipse tangentially adjoining the first and second flank at respective flank transition points, the ellipse having a major axis extending parallel to the axis and a minor axis extending perpendicular to the major axis and through a root bottom.