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.

Date of Patent:
Jul. 17, 2018

Filed:

Mar. 07, 2014
Applicant:

Weatherford Technology Holdings, Llc, Houston, TX (US);

Inventor:

Darren Richard Santeler, Katy, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 17/20 (2006.01); E21B 43/10 (2006.01);
U.S. Cl.
CPC ...
E21B 43/103 (2013.01); E21B 43/105 (2013.01);
Abstract

An expandable tubular system that includes a launcher section coupled to a tubular string and that houses an expansion device. A shoulder section that is formed at a transition point between the launcher section and the tubular string has a wall thickness greater than the wall thicknesses of the tubular string and the launcher section. The shoulder section has an inner diameter less than inner diameters of the launcher section and the tubular string. The shoulder section is arranged to increase the force required to begin expansion of the tubular string and increase the contact area between the inner surface of the shoulder section the expansion device when supporting the weight of the tubular string.


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