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Volume 3
Oil Gas 2019
August 05-06, 2019
Page 18
oil and gas
August 05-06, 2019 | Singapore
International Conference on
Journal of Environmental Chemistry and Toxicology
J Environ Chem Toxicol, Volume 3
Mimoun Elboujdaini
ACME, USA
Effect of hydrogen on mechanical properties of low strength steels in oil & gas
applications
Mimoun Elboujdaini
ACME, USA
H
ydrogen-induced cracking in steel & environmental cracking mechanisms is one of several related mechanisms whereby
absorbed hydrogen atoms can compromise the integrity of components manufactured of low strength steels. This course
principally addresses environmental embrittlement mechanisms active in sour gas production - i.e., occurrences in pipelines
and pressure vessels handling sour gas and oil (upstream and downstream operations), gas transmission pipelines, etc. Sulphide
Stress Cracking (SSC) is one of numerous “environmental embrittlement” mechanisms whereby a metal or alloy exposed to an
aqueous or moist gaseous environment containing hydrogen sulphide (H
2
S) – a “sour environment” - can fail catastrophically.
The deleterious effects of hydrogen can be reduced or even eradicated through cautious selection of base metals, weld metals,
and fabrication practices, as well as adherence to procedures.
•
Extent of the Problem:
Occurrences in pipelines and pressure vessels handling sour gas and oil (upstream and downstream
operations), gas transmission pipelines, etc.
•
Mechanisms:
Including the metallurgical and environmental conditions affecting the likelihood of HIC development. The
related mechanism “Stress-Oriented Hydrogen-Induced Cracking” will also be described.
• Laboratory Testing Methods, and HIC-resistant steel purchase, quality assurance testing and acceptance criteria; e.g. HIC-
resistance tests and steel specification, quality...etc.
•
Metallurgical Control:
New construction or replacement materials and specification of HIC-resistant steel.
•
Environmental Control Options:
Chemical inhibition, coatings, development of protective scales, etc. Understanding these
factors is of great importance to minimize and control corrosion and material failure in many industrial applications as well as
pipeline.
Understanding these factors is of great importance to minimize and control corrosion and material failure in many industrial
applications as well as pipeline.
Biography
Mimoun Elboujdaini is a Research Scientist with over 30 years in material R&D and management and coordinator of projects on
engineering materials, their properties and performance in various service environments. The projects covered oil & gas, pipeline,
aluminium base alloys, stainless steels, mining industry, and aerospace materials, etc. He is an Active member of several international
professional societies as chairman and/or as member of Board of Directors. He is also Chaired several national and international
conferences. He reviewed numerous papers for scientific journals, and acted as editor books, PhD thesis examiner and reviewer
of graduate programs at the universities and Adjunct professorship at the University of Alberta. He has won several National &
International awards and recognitions.
melboujd@gmail.com