Server maintenance is scheduled for Saturday, December 21st between 6am-10am CST.

During that time, parts of our website will be affected until maintenance is completed. Thank you for your patience.

Menu
Search
Filters
Close
Menu

Use GIVING24 at checkout to save 20% on eCourses and books (some exclusions apply)!

Hydrogen-Assisted Cracking of Martensitic Stainless Steel Tubing - A Field Failure

Picture for Hydrogen-Assisted Cracking of Martensitic Stainless Steel Tubing - A Field Failure
Available for download

A gas injection well completed mid-2019, started leaking after only approximately four months in service. The well was initially back flowed for a period of approximately two months before it was put on gas injection service. After another two months on gas injection, a tubing-to-annulus leakage was registered and the well had to be shut in to re-establish all barriers.

Product Number: 51323-19144-SG
Author: Sten B Axelsen, Perry I Nice, Lucrezia Scoppio, Giuseppe Mortali, Berit Sara Schiefloe, Andrea Bufalini
Publication Date: 2023
$0.00
$20.00
$20.00

After only months in service, a tubing-to-annulus leakage was detected in a subsea gas injection well located on the Norwegian continental shelf. This well had been completed with UNS<xref rid="fn1-c2023-19144" ref-type="fn">(1)</xref> S41426 martensitic stainless steel tubing. Upon retrieval of the tubing string, the source of the leakage proved to be a full tubing wall thickness penetrating crack which had initiated in and was confined to, tubing make-up tong die marks on the outside surface. Further, the initial investigation showed that the temperature/pressure gauge instrument line encapsulation material had been severely degraded, revealing the galvanized steel bumper wire. This instrument line was clamped onto the outside of the tubing.


This paper describes the failure analysis and laboratory corrosion tests performed trying to replicate the field failure. The investigations proved that the tong die marks had severely cold-worked the external surface of the tubing and, thus, locally altered the metallurgy and hardness. Further, as the galvanized steel wire was exposed, an effective galvanic cell between the zinc coating and the martensitic stainless steel tubing was established, allowing hydrogen-assisted cracking of the tubing.

After only months in service, a tubing-to-annulus leakage was detected in a subsea gas injection well located on the Norwegian continental shelf. This well had been completed with UNS<xref rid="fn1-c2023-19144" ref-type="fn">(1)</xref> S41426 martensitic stainless steel tubing. Upon retrieval of the tubing string, the source of the leakage proved to be a full tubing wall thickness penetrating crack which had initiated in and was confined to, tubing make-up tong die marks on the outside surface. Further, the initial investigation showed that the temperature/pressure gauge instrument line encapsulation material had been severely degraded, revealing the galvanized steel bumper wire. This instrument line was clamped onto the outside of the tubing.


This paper describes the failure analysis and laboratory corrosion tests performed trying to replicate the field failure. The investigations proved that the tong die marks had severely cold-worked the external surface of the tubing and, thus, locally altered the metallurgy and hardness. Further, as the galvanized steel wire was exposed, an effective galvanic cell between the zinc coating and the martensitic stainless steel tubing was established, allowing hydrogen-assisted cracking of the tubing.

Product tags
Also Purchased
Picture for The effect of reeling on the qualification of CRA lined and clad pipes according to NACE MR0175/ISO 15156-3: a methodology to qualify reeled pipelines
Available for download

The effect of reeling on the qualification of CRA lined and clad pipes according to NACE MR0175/ISO 15156-3: a methodology to qualify reeled pipelines

Product Number: 51323-18919-SG
Author: Riccardo Rizzo, Bjarte Lillebø, Stefan Marion, Erik Krogstad Sverre, Mads Arild Eidem, Karl Gunnar Solheim
Publication Date: 2023
$20.00

The use of carbon steel pipelines lined or clad with corrosion resistant alloys (CRAs) is increasing in the O&G industry. These pipelines combine the mechanical properties of carbon steel with the corrosion resistance of CRAs. Some CRAs such as AISI 316L (UNS 31603) are not pre-qualified according to ANSI/NACE MR0175/ISO 15156 part 3. The potential for corrosion and cracking of carbon steel in some applications can require a CRA liner/clad layer to resist corrosion but this can introduce the possible risk of stress corrosion cracking of some CRAs.
Picture for 01089 Corrosion Performance of Martensitic
Available for download

01089 Corrosion Performance of Martensitic Stainless Steel Welded Joint with Matching Welding Consumables

Product Number: 51300-01089-SG
ISBN: 01089 2001 CP
Author: Mitsuo Kimura, Yukio Miyata, Takaaki Toyooka, Tetsuya Sango, Hideaki Ishii and Koichi Yasuda
$20.00
Picture for 00795 ZINC MESH CATHODIC PROTECTION SYSTEMS
Available for download

00795 ZINC MESH CATHODIC PROTECTION SYSTEMS

Product Number: 51300-00795-SG
ISBN: 00795 2000 CP
Author: Douglas L. Leng, Rodney G. Powers and Ivan R. Lasa
$20.00
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support