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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 11268165 B1

PDFFull Text
Date of Patent:
Mar. 08, 2022

Filed:

Mar. 20, 2019

Homogenization process for coiled tubing

Applicant:

Shinda (Tangshan) Creative Oil & Gas Equipment Co., Ltd., Tangshan, CN;

Inventors:

Jianliang Duan, Tangshan, CN;

Jian Dong, Tangshan, CN;

Shujun Zhang, Tangshan, CN;

Bin Zheng, Tangshan, CN;

Fengshou Shangguan, Tangshan, CN;

Yueqing Lin, Tangshan, CN;

Xiang Liu, Tangshan, CN;

Yali Zhang, Tangshan, CN;

Assignee:

SHINDA (TANGSHAN) CREATIVE OIL & GAS EQUIPMENT CO., LTD., Tangshan, CN;

Attorney:

Wood Herron & Evans LLP

Primary Examiner:

Alexandra M Moore

Assistant Examiner:

Adil A Siddiqui

Int. Cl.
CPC ...
C21D 9/50 (2006.01); C21D 1/26 (2006.01); C21D 1/42 (2006.01); C21D 1/60 (2006.01); C21D 1/667 (2006.01); C21D 9/08 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/22 (2006.01); C22C 38/24 (2006.01); C22C 38/26 (2006.01); C22C 38/28 (2006.01); C22C 38/32 (2006.01); C23G 1/08 (2006.01);
U.S. Cl.
CPC ...
C21D 9/505 (2013.01); C21D 1/26 (2013.01); C21D 1/42 (2013.01); C21D 1/60 (2013.01); C21D 1/667 (2013.01); C21D 9/08 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/22 (2013.01); C22C 38/24 (2013.01); C22C 38/26 (2013.01); C22C 38/28 (2013.01); C22C 38/32 (2013.01); C23G 1/08 (2013.01);
Abstract

A homogenization process for coiled tubing is provided. After being preheated in a sectional manner and quenched and tempered, laser-welded low-carbon alloy steel coiled tubing is spray cooled, and then is tempered to obtain homogeneous silvery coiled tubing. Microstructural uniformity of the silvery coiled tubing after the treatment is greatly improved in a welding seam region, a heat sensing region, and a tube wall, situations in which an outer surface of the coiled tubing is burnt and oxidized in the homogenization process are reduced, and a service life of the coiled tubing is prolonged. Moreover, homogeneous coiled tubing with different yield strengths and tensile strengths can be obtained by changing a temperature of the tempering, so that production costs are reduced.

Find Patent Forward Citations

Duan, Jianliang. (2022). Homogenization process for coiled tubing (U.S. Patent No. 11268165). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11268165

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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