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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.:

US 10480054 B1

PDFFull Text
Date of Patent:
Nov. 19, 2019

Filed:

Oct. 01, 2015

Coiled tube with varying mechanical properties for superior performance and methods to produce the same by a continuous heat treatment

Applicant:

Tenaris Coiled Tubes, Llc, Houston, TX (US);

Inventors:

Martin Valdez, Buenos Aires, AR;

Bruce A. Reichert, Houston, TX (US);

Jorge Mitre, Houston, TX (US);

Assignee:

TENARIS COILED TUBES, LLC, Houston, TX (US);

Attorney:

Fish & Richardson P.C.

Primary Examiner:

Jenny R Wu

Int. Cl.
CPC ...
C22C 38/38 (2006.01); C21D 8/10 (2006.01); C21D 9/14 (2006.01); E21B 17/20 (2006.01); C21D 6/00 (2006.01); C21D 9/08 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/26 (2006.01); C22C 38/28 (2006.01); C22C 38/32 (2006.01);
U.S. Cl.
CPC ...
C22C 38/38 (2013.01); C21D 6/002 (2013.01); C21D 6/005 (2013.01); C21D 6/008 (2013.01); C21D 8/105 (2013.01); C21D 9/08 (2013.01); C21D 9/085 (2013.01); C21D 9/14 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/26 (2013.01); C22C 38/28 (2013.01); C22C 38/32 (2013.01); E21B 17/20 (2013.01);
Abstract

Described herein are coiled tubes with improved and varying properties along the length that are produced by using a continuous and dynamic heat treatment process (CDHT). Coiled tubes can be uncoiled from a spool, subjected to a CDHT process, and coiled onto a spool. A CDHT process can produce a 'composite' tube such that properties of the tube along the length of the tube are selectively varied. For example, the properties of the tube can be selectively tailored along the length of the tube for particular application for which the tube will be used.

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