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Bending of pipes with inconel cladding; Curvamento de tubos revestidos com inconel

Abstract

The pipes used in offshore equipment, such as wet Christmas trees, sub sea manifolds and rigid platform risers, as well as some pipes for refineries and ships, must have mechanical resistance to high pressure and also be resistant to corrosion from acids. Some special materials, such as stainless steel, duplex and super duplex steel are used to resolve this problem, but the cost is very high. Besides the problem of cost, these materials have other drawbacks, such as the difficulty of welding them, a technology mastered in few countries. As a better alternative, the use has been increasing of carbon steel and API pipes coated internally with inconel by welding deposition. This groundbreaking technology, of proven efficiency, has a far superior cost-benefit relation. Carbon steel and API pipes, besides having better mechanical resistance to high pressure and corrosion resistance, can be fabricated with technology mastered worldwide. Nickel alloys, such as inconel, are highly resistant to corrosion and temperature, and in these aspects are better than stainless steels. The pipes for transportation equipment and for refining hydrocarbons, as mentioned above, require various turns and special geometries, which generally are solved by the use of bends and spools made by high-frequency induction.  More>>
Authors:
Nachpitz, Leonardo; Menezes, Carlos Eduardo B; Vieira, Carlos R. Tavares [1] 
  1. PROTUBO, Macae, RJ (Brazil)
Publication Date:
Jul 01, 2008
Product Type:
Conference
Report Number:
ETDE-BR-0526
Resource Relation:
Conference: Rio oil and gas 2008 expo and conference, Rio de Janeiro, RJ (Brazil), 15-18 Sep 2008; Other Information: 16 refs., 6 figs., 7 tabs. Codes: IBP2036{sub 0}8; BR0902595.pdf
Subject:
02 PETROLEUM; 36 MATERIALS SCIENCE; PIPELINES; OFFSHORE OPERATIONS; CARBON STEELS; COATINGS; INCONEL ALLOYS; BENDING; INDUCTION; FABRICATION
OSTI ID:
21169051
Research Organizations:
Instituto Brasileiro de Petroleo, Gas e Biocombustiveis (IBP), Rio de Janeiro, RJ (Brazil)
Country of Origin:
Brazil
Language:
Portuguese
Other Identifying Numbers:
TRN: BR0902595
Availability:
Commercial reproduction prohibited; OSTI as DE21169051
Submitting Site:
BR
Size:
10 pages
Announcement Date:
May 28, 2009

Citation Formats

Nachpitz, Leonardo, Menezes, Carlos Eduardo B, and Vieira, Carlos R. Tavares. Bending of pipes with inconel cladding; Curvamento de tubos revestidos com inconel. Brazil: N. p., 2008. Web.
Nachpitz, Leonardo, Menezes, Carlos Eduardo B, & Vieira, Carlos R. Tavares. Bending of pipes with inconel cladding; Curvamento de tubos revestidos com inconel. Brazil.
Nachpitz, Leonardo, Menezes, Carlos Eduardo B, and Vieira, Carlos R. Tavares. 2008. "Bending of pipes with inconel cladding; Curvamento de tubos revestidos com inconel." Brazil.
@misc{etde_21169051,
title = {Bending of pipes with inconel cladding; Curvamento de tubos revestidos com inconel}
author = {Nachpitz, Leonardo, Menezes, Carlos Eduardo B, and Vieira, Carlos R. Tavares}
abstractNote = {The pipes used in offshore equipment, such as wet Christmas trees, sub sea manifolds and rigid platform risers, as well as some pipes for refineries and ships, must have mechanical resistance to high pressure and also be resistant to corrosion from acids. Some special materials, such as stainless steel, duplex and super duplex steel are used to resolve this problem, but the cost is very high. Besides the problem of cost, these materials have other drawbacks, such as the difficulty of welding them, a technology mastered in few countries. As a better alternative, the use has been increasing of carbon steel and API pipes coated internally with inconel by welding deposition. This groundbreaking technology, of proven efficiency, has a far superior cost-benefit relation. Carbon steel and API pipes, besides having better mechanical resistance to high pressure and corrosion resistance, can be fabricated with technology mastered worldwide. Nickel alloys, such as inconel, are highly resistant to corrosion and temperature, and in these aspects are better than stainless steels. The pipes for transportation equipment and for refining hydrocarbons, as mentioned above, require various turns and special geometries, which generally are solved by the use of bends and spools made by high-frequency induction. This technology, already well established for various carbon and stainless steels, was developed to work with pipes coated internally with inconel (inconel cladding). Therefore, our work describes the process of fabricating bends from API steel pipes with inconel cladding, demonstrating the efficacy of this technology along with its quality gains and cost reduction. (author)}
place = {Brazil}
year = {2008}
month = {Jul}
}