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TECHNICAL BRIEFS

Flash-Butt Welding of Large-Diameter Oil and Gas Pipelines

[+] Author and Article Information
D. L. Turner

McDermott, Inc., New Orleans, La. 70160

J. Energy Resour. Technol 108(4), 347-351 (Dec 01, 1986) (5 pages) doi:10.1115/1.3231288 History: Received October 08, 1986; Online October 22, 2009

Abstract

Interest in developing a high-production automatic joining method for quality offshore pipelines led to full-scale evaluation of the flash-butt welding process. During the past five years, two separate flash-butt welding machines have been used to provide over 1100 welds in 914-mm (36-in.) o.d. pipe for test and evaluation. Increased speed and the quality inherent in a fully automatic welding process were the two major incentives for the development project. It is estimated that flash-butt welding can produce up to 377 joints per day in 914-mm (36-in.) o.d. × 25-mm wall thickness pipe—twice what can be produced by conventional manual (shielded metal arc) welding techniques. This paper describes the flash-butt welding process and plans to install production equipment aboard a semi-submersible laybarge in the near future.

Copyright © 1986 by ASME
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