...Abstract The objective of this research is to obtain a quantitative description of the effect of adsorbed H₂S and chloride on the hydrogen penetration in high strength low alloy (HSLA) carbon steel, by evaluating the response of hydrogen permeation current and the formation...

... on OCTG being a barrier to corrosion and hydrogen permeation that would act to retard SSC. Despite the popularity of this belief, limited data assessing this hypothesis exists in the public domain. A laboratory study was conducted to assess both the corrosion behavior and hydrogen permeation through API...

... pollution was added in the system, significantly higher corrosion rates were observed, associated with test solution acidification. At the same time, permeation efficiency was decreased by up to one order of magnitude. H₂S, O₂ HIC SSC hydrogen permeation hydrogen embrittlement X65...

... cracking (SCC) and wet H₂S damage (sulfide stress cracking SSC, blistering, hydrogen induced cracking HIC, and stress oriented hydrogen induced cracking SOHIC). Wet H₂S damage occurs when there is increased hydrogen permeation due to increased H₂S partial pressure...

... system. These failures caused the GRU to operate in the absence of wash water which meant that cyanides were not efficiently trapped or removed. The onset of hydrogen permeation was detected and measured using field inspections and hydrogen permeation probes. Condition monitoring was also performed...

... that the apparent permeation efficiency was decreased. CONCLUSIONS AND FUTURE WORK The effect of oxygen traces on pure iron corrosion and hydrogen permeation was studied in a model aqueous NaCl (35g/L) and NACE A solution under 1bar H₂S at ambient temperature with and without O₂ content...

... cathodic protection in soil simulation conditions. The uptake and diffusion of hydrogen in the steels under different cathodic protection levels were analyzed by hydrogen permeation test and hydrogen content measurement. Slow strain rate testing (SSRT) under cathodic conditions as well as mechanical...

...HIC line pipes hydrogen permeation copper corrosion product INTRODUCTION In oil and gas fields, the presence of hydrogen sulfide enhances hydrogen entry into steels and results in causing the environmental cracking such as Hydrogen Induced Cracking (HIC), Sulfide Stress Cracking (SSC...

...Abstract Hydrogen permeation behavior of pipeline steel under different sour condensate film condition was investigated by in-situ testing. The effects of H₂S corrosion product scales and the temperature of wet gas containing a high content of hydrogen sulfide on the hydrogen permeation...

... (or permeation) through the material of the vessel. Recently, hydrogen permeation measurements were conducted on some selected vessels handling sour crude and gas in an oil and gas processing facility at the Kuwait Oil Company (KOC) ^† . Based on the ‘Risk Rating’ derived from the hydrogen permeation...

... the diffraction patterns. Electrochemical Permeation Cell Experimentation The permeation of the coating was measured with Devanathan-Stachurski hydrogen permeation cell by attaching the thin shim at the middle of two detachable cell which is described elsewhere ¹⁷ . The shim surface was coated with Pd...

... to indicate AC effects on hydrogen permeation, the volumetric quantification of hydrogen permeation proved its feasibility. In the absence of promoters (e.g. arsenite) no hydrogen permeation was measured in all media regardless of the presence of AC (30 to 500 A/m²). Hydrogen permeation started...

... spectrometer (EDS). The effects of H₂S content and corrosion product coverage on hydrogen permeation of pipeline steel were studied by electrochemical methods. The results show that the corrosion behavior of API 5L X70 steel at different H₂S content is mainly affected by the corrosion...

... temperature flux measurements. Hydrogen flux naphthenic acid corrosion hydrogen permeation Hydrogen flux tools were originally appreciated for the assessment of hydrogen induced cracking risk presented by hydrogen permeation thorough steels subject to sour aqueous corrosion. In special circumstances...

...The experimental approach consisted of in situ-hydrogen permeation measurements during the electrochemical plating of a 13 μm ZnNi coating on high strength steel membranes. EXPERIMENTAL Material hydrogen permeation ZnNi plating cadmium plating nickel plating zinc plating high strength steel...

... sulfide sulfide stress cracking hydrogen permeation iron sulfide sulfide formation corrosion rate INTRODUCTION Material Weight loss experiments Coupons of 50 mm long, 25.4 mm wide and 9.53 mm thick were used; surface finished with #400 emery paper. Prior insertion in the testing vessel, they were...

..., remote monitoring, and limitations so that the results obtained can be effectively used in integrity management programs. This paper presents the results obtained from testing five (5) non-intrusive techniques (ultrasonic-handheld, ultrasonic-fixed, electrical probe, hydrogen permeation, and fibre-optic...

... conditions and sulfide scale integrity. Preliminary results are presented for API 5CT L80 steel. sour corrosion sulfide stress cracking thermal wells hydrogen permeation synergistic damage mechanism plastic deformation mini-pipe When steam is injected in SAGD wells, the temperature rises from room...

... even if surface modifications occur during the hydrogen charging. Model Fe-Mo steel Hydrogen permeation H₂S promoted charging Cathodic charging INTRODUCTION Despite their high resistance to hydrogen embrittlement the use of high strength martensitic steels may be limited in Oil & Gas...

... are denoted by the letter in following discusses. Cross-section morphology of three kinds of corrosion scales with thicknesses of about 5-6 μm are shown in Figure 2 . The Pyrrhotite scale was heterogeneous because of the appearance of dimorphic Pyrrhotite crystal in later stage reaction. Hydrogen permeation...